Circuitos Integrados

Subcategorias

📁 ADC/DAC 3.100+ produtos 📁 CIs Amplificadores 1.900+ produtos 📁 Codecs de Áudio 18 produtos 📁 CIs de Áudio 2 produtos 📁 Relógio e Temporização 660+ produtos 📁 Comparator ICs 1 produtos 📁 DSP 1.100+ produtos 📁 CIs de Aquisição de Dados 2 produtos 📁 Potenciômetros Digitais 4 produtos 📁 Drivers e Controladores de Display 1 produtos 📁 FPGA & CPLD 7.300+ produtos 📁 CIs de Interface 3.300+ produtos 📁 Drivers de LED 1 produtos 📁 CIs Lógicos 460+ produtos 📁 CIs de Memória 870+ produtos 📁 Microcontroladores 20.000+ produtos 📁 Microprocessadores 4 produtos 📁 Drivers de Motor 1 produtos 📁 Outros 1 produtos 📁 Sensor and Detector Interfaces 1 produtos 📁 CIs Especializados 15 produtos 📁 CIs de Vídeo 14 produtos

Produtos (39.000+)

BCM8727BIFBG - Dual 10GbE SFI-to-XAUI PHY | Broadcom
BCM8727BIFBG

BCM8727BIFBG - Dual 10GbE SFI-to-XAUI PHY | Broadcom

Broadcom BCM8727BIFBG is a dual-channel 10GbE SFI-to-XAUI transceiver with electronic decision making (EDC), supplied as a square 324-ball package. It supports 10 Gigabit Ethernet signal-path designs by combining two SFI channels with XAUI serialization in one interface IC. The Broadcom designation identifies the component as a 10GBE dual SFI-to-XAUI physical-layer transceiver rather than a general-purpose Ethernet controller. An Ethernet physical-layer transceiver is an interface IC that converts high-speed parallel or serial signaling into electrical data for an Ethernet medium while supplying the receive path needed by the line-card or switching system. The SFI interface connects a line-card transceiver to the PHY, while the XAUI interface carries 10 Gigabit Ethernet data between the PHY and an Ethernet ASIC or switching fabric. This division lets each block perform its intended function at the required signal rate. The BCM8727BIFBG's principal documented characteristics are its dual-channel configuration, 10GbE operation, SFI-to-XAUI signal conversion, integrated EDC, 324 terminals, square package form, and MSL 3 handling classification. EDC is especially relevant to high-speed optical links because it allows the receiver to assess signal integrity and support decisions about valid data. The two-channel architecture also reduces the number of physical-layer devices required in a dual-port line-card design. Broadcom markets the BCM8727BIFBG for telecommunications and networking equipment, including 10 Gigabit Ethernet line cards, optical transport systems, router interfaces, and switching platforms. The device is intended for designs where two 10GbE links must terminate into XAUI-connected processing silicon. Because it is a physical-layer component rather than a complete Ethernet switch, it should be paired with an appropriate Ethernet ASIC, FPGA, line-card controller, optical module, and supporting clock and power circuitry. The 324-ball package provides a high-density mixed-signal interface suitable for multilayer PCB design. Its ball count makes controlled escape routing essential between the BGA device and SFI, XAUI, reference, supply, and control connections. Differential routing, uninterrupted reference planes, controlled impedance, and separate handling of sensitive clock and high-speed data paths are more important than generic component-spacing rules. Before release to production, verify the complete Broadcom datasheet, pin map, reference circuit, AC timing requirements, PCB stack-up, and thermal design against the intended Ethernet ASIC or FPGA. The public listing identifies the device as a 2-page Broadcom datasheet, but detailed electrical limits and pin-level information should be taken directly from the controlled manufacturer document rather than inferred from distributor metadata. This page consolidates the available Broadcom identification, package information, interface description, sourcing details, and design guidance into one engineering reference. It also distinguishes verified device facts from parameters that still require confirmation from the controlled manufacturer datasheet before layout or qualification.

Cotação Contato
BCM8727CIFBG - 10GbE Dual SFI-to-XAUI PHY | Broadcom
BCM8727CIFBG

BCM8727CIFBG - 10GbE Dual SFI-to-XAUI PHY | Broadcom

Broadcom BCM8727CIFBG is a dual-channel 10GbE SFI-to-XAUI transceiver PHY designed for high-speed Ethernet equipment. It combines two 10.3125 Gb/s SFI channels with XAUI interfaces, providing a compact interface-conversion solution for network switches, routers, line cards, and other data-communications equipment. The device uses Broadcom's BCM8727CIFBG designation and is identified in the manufacturer catalog as an integrated circuit in the interface, driver, receiver, and transceiver family. A 10GbE physical-layer transceiver is an interface IC that converts parallel or lane-based digital data into electrical signaling suitable for high-speed copper links. Within the broader semiconductor hierarchy, the BCM8727CIFBG is a networking transceiver, then an interface IC, and finally a general-purpose semiconductor. Its dual-channel architecture reduces the number of physical-layer devices needed in a two-lane network interface while supporting the widely deployed 10GbE SFI and XAUI interface types. The principal defined features are two independent 10GbE channels, a 10.3125 Gb/s data rate, SFI input interfacing, and XAUI output interfacing. These characteristics make the part relevant to designs that need deterministic 10GbE connectivity rather than general-purpose serial communications. The BCM8727CIFBG is especially relevant to enterprise switching, data-center interconnect, server networking, optical-module host interfaces, and telecommunications aggregation equipment. Its dual-channel configuration allows a board designer to implement two 10GbE paths through one component, supporting efficient use of board area and system power. XAUI provides a wide, parallel interface between a MAC or switching fabric and the physical layer, while SFI supplies a high-speed serial link toward an optical or copper transceiver. The resulting partition of responsibilities can simplify board partitioning when the external line-card or pluggable transceiver performs the final medium conversion. Typical deployments include 10GbE switches, routers, network interface cards, servers, storage systems, and optical transport equipment. In these systems, the BCM8727CIFBG can serve as the copper-side interface between high-speed digital logic and an SFI-capable optical module. It is also appropriate for test equipment and communication backplanes where dual-channel 10GbE connectivity is required. Design integration should focus on exact pin assignment, differential-signal routing, reference-clock requirements, power-supply sequencing, and decoupling. Use the Broadcom datasheet pin-description table when assigning PCB tracks and the reference-design layout when reproducing the recommended high-speed topology. Confirm package dimensions, exposed-pad requirements, operating-temperature limits, and electrical timing before releasing a layout. This product record combines the verified BCM8727CIFBG catalog description with practical interface-selection guidance, procurement instructions, and a structured framework for comparing pin-compatible alternatives. It also identifies which electrical and mechanical details must be confirmed in the manufacturer datasheet before a production design is approved.

Cotação Contato
BCM8727MCIFBG - Dual 10GbE SFI-to-XAUI PHY | Broadcom
BCM8727MCIFBG

BCM8727MCIFBG - Dual 10GbE SFI-to-XAUI PHY | Broadcom

The Broadcom BCM8727MCIFBG is a dual-channel 10-Gigabit Ethernet SFI-to-XAUI PHY transceiver housed in a 324-pin BGA package, supporting 10.31 Gbps per channel for high-density networking line cards. According to Broadcom product documentation, the device performs serialization, clock-data recovery (CDR), and physical-layer adaptation between the Serdes Framer Interface (SFI) and the XAUI (10-Gigabit Attachment Unit Interface), enabling 10GBASE-R optical module connectivity to MAC-side ASICs and switches. A SFI-to-XAUI PHY is a specialized physical-layer transceiver IC that bridges a high-speed serial optical interface (SFI, typically routed to an XFP or SFP+ optical module) and the XAUI 4-lane 3.125 Gbps parallel interface used by 10GbE MACs. In the broader taxonomy, it belongs to the Ethernet PHY family within interface ICs, sitting below the MAC layer and above the optical module. These PHYs are essential building blocks in switches, routers, and NICs that aggregate 10GbE ports at line-card scale. Key features include dual-channel integration (two independent 10GbE PHYs in a single IC), SFI receive and transmit paths with integrated CDR, XAUI-side 4-lane transmit and receive, support for IEEE 802.3ae 10GBASE-R encoding/decoding, and MDIO/I2C management interfaces for status monitoring and link diagnostics. The 324-pin BGA package is engineered for high-density switch/router PCB layouts where signal-integrity-controlled via arrays are required for 10+ Gbps routing. Technically, the BCM8727MCIFBG integrates two complete SFI-XAUI PHY channels, sharing reference clock distribution, JTAG, and management interfaces to minimize board area. Each channel supports independent reset, loopback, and squelch control, enabling per-port diagnostics. The BGA substrate provides controlled-impedance routing for differential SFI and XAUI lanes, critical for meeting IEEE 802.3ae jitter and eye-mask requirements at 10.3125 Gbps. Typical applications include 10GbE line cards in enterprise and carrier-grade switches, SFP+/XFP optical port aggregation in routers, 10GBASE-LR/SR fiber-optic NICs and host-bus adapters, and high-density data-center top-of-rack switching fabrics. When designing with this device, allocate dedicated GND and power planes under the BGA, follow Broadcom reference layout for SFI/XAUI differential pairs, and decouple each supply pin with 0.1uF ceramic plus bulk polymer capacitors to meet IEEE 802.3ae jitter tolerance. This page synthesizes distributor stock, pin-compatible alternatives, and Broadcom application notes not aggregated on individual distributor listings.

Cotação Contato
BCM88360A0IFSBLG - Traffic Manager PktProc | Broadcom
BCM88360A0IFSBLG

BCM88360A0IFSBLG - Traffic Manager PktProc | Broadcom

The Broadcom BCM88360A0IFSBLG is a high-performance telecom interface IC classified as a Traffic Manager Packet Processor, designed for networking and switching equipment operating over industrial temperature ranges. Housed in a large 388-ball BGA package supplied in tray packaging, this device belongs to Broadcom's StrataDNX/BCM88360 family of carrier-grade packet processors commonly deployed in high-port-density Ethernet switches, MPLS routers, and carrier aggregation platforms. A telecom interface IC is a specialized integrated circuit that performs physical-interface, framing, and traffic-management functions within telecommunications equipment. In the hierarchy of networking semiconductors, this category sits below full network processors and above PHY transceivers, acting as the co-processor responsible for traffic shaping, queue management, and packet classification. Broadcom's BCM88360 family targets deep-buffer aggregation and switching at 10G, 40G, and 100G line rates, requiring the high-BGA-count package for the wide parallel datapath and multiple SerDes lanes. Key features include industrial temperature grade operation, a 388-ball BGA surface-mount form factor, and integration with Broadcom's HiGig/FastPath switch architectures. The IC supports wire-speed packet processing for buffer management, congestion management, hierarchical QoS, and traffic policing commonly required in carrier Ethernet and data-center aggregation switches. The package's 388 balls provide the dense I/O necessary for multiple external memory interfaces, fabric ports, and control/status buses. Typical applications include enterprise and carrier Ethernet aggregation switches, MPLS and IP edge routers, data-center top-of-rack or spine switches, and packet transport platforms requiring deep buffering. The BCM88360A0IFSBLG is qualified for industrial-grade thermal operation, making it suitable for outdoor cabinet deployments and uncontrolled-airflow environments. When designing with this device, follow Broadcom reference design guidelines for PCB layout, including controlled-impedance SerDes traces, solid power and ground planes, and thermal vias under the BGA. Design verification requires use of Broadcom's SDK and reference firmware to validate the switch-fabric and packet-processing pipelines.

Cotação Contato
BD3401KS2 - 2-Channel Audio Signal Processor | ROHM
BD3401KS2

BD3401KS2 - 2-Channel Audio Signal Processor | ROHM

The ROHM Semiconductor BD3401KS2 is a 2-channel audio signal processor with a built-in preamplifier for tape recording and playback, supplied in a 64-pin SQFP package measuring 12 x 12 mm. It operates from an 8 V to 9.5 V supply and is designed for compact analog audio systems requiring integrated recording, playback, and signal-processing functions in one package. The BD3401KS2 also appears in the BD3401KS2/BD3402KS2 family data, indicating a closely related device family for audio applications. An audio signal processor is an application-specific analog integrated circuit that conditions, controls, and routes audio signals. In the broader semiconductor hierarchy, it is an audio amplifier IC within integrated circuits and signal-processing semiconductors. Unlike a general-purpose operational amplifier, this device combines multiple functions associated with tape recording and playback, reducing the number of separate ICs required in a cassette-oriented signal chain while preserving a defined pin and function architecture. The verified device information identifies the BD3401KS2 as an audio audio-signal processor with 2 channels and a surface-mount 64-LQFP package. Its microphone input is associated with pins 59 and 60, while the output is associated with pins 32 and 33 under the stated ALC-off condition. The manufacturer data also identifies maximum output voltage and gain specifications for the processing sections, including up to 2.5 Vrms maximum microphone output and distinct output-gain ranges for the two output paths. Typical engineering uses include cassette and tape-deck playback channels, tape recording paths, microphone preamplification, stereo audio processing, and compact consumer-audio equipment. The single-supply architecture and integrated preamplifier make the IC relevant to designs where analog audio conditioning is required without deploying a collection of separate amplifiers and control devices. Exact input impedance, noise, frequency response, control-voltage ranges, and absolute maximum ratings must be confirmed against the manufacturer datasheet before layout or production use. In a practical design, the analog signal path should be laid out with short, shielded routes for microphone and tape inputs, while supply and ground connections should use low-impedance planes. Decoupling capacitors should be placed directly beside the relevant supply pins, and output routing should avoid proximity to digital control traces. Because the part is associated with tape recording and playback, component tolerances and noise behavior can materially affect hiss, gain consistency, and channel balance. This product summary combines the verified package, channel, supply, function, pin-fragment, and performance data with application-focused engineering guidance. It also clearly separates verified facts from parameters that still require confirmation from the full ROHM datasheet, reducing the risk of basing a new PCB or production BOM on incomplete web excerpts.

Cotação Contato
BD3402KS2 - 2-Channel Audio Signal Processor | ROHM Semiconductor
BD3402KS2

BD3402KS2 - 2-Channel Audio Signal Processor | ROHM Semiconductor

The ROHM Semiconductor BD3402KS2 is a 2-channel analog audio signal processor for home-audio cassette recording and playback, with a built-in preamplifier, single-power-supply operation from 8 V to 9.5 V, and a 64-pin SQFP-T package measuring 12 mm by 12 mm. An audio sound processor is an analog integrated circuit that conditions two audio channels and adds functions such as surround and bass boost. It belongs to the broader audio-processing hierarchy of sound processors, audio amplifiers, interface ICs, and power-management semiconductors. In cassette equipment, the built-in preamplifier reduces the external circuitry required around the recording and playback signal path. The BD3402KS2 supports two audio channels from one 8 V to 9.5 V supply. Its 2-wire interface allows a control system to select or configure supported operating functions. According to the ROHM product information, the associated processor family provides surround and bass-boost functions with soft switching intended to reduce shock noise during mode changes. A dedicated digital-circuit power-supply terminal helps maintain internal IC state with low standby current. The device integrates multiple analog audio functions in one package. Its preamplifier is designed for cassette recording and playback, while the surround and bass-boost sections support consumer-audio signal shaping. Soft switching is an important implementation feature because abrupt mode transitions in audio systems can create an audible transient. The two-channel architecture also allows coordinated processing of left and right program material. Typical uses include cassette-deck record and playback circuitry, compact home-audio systems, analog stereo equipment, and legacy consumer-audio designs requiring a dedicated audio signal processor. The 12 mm by 12 mm SQFP-T package requires a multilayer PCB with fine-pitch routing and careful thermal management, so the availability of exact schematic, footprint, and pin-assignment data is critical before a replacement is approved. Design work should verify the complete pinout, recommended application circuit, external resistor and capacitor values, control timing, and thermal requirements against the manufacturer datasheet. Because the BD3402KS2 is identified as obsolete in the supplied product data, engineers should also confirm whether new production is possible and whether an authorized manufacturer-supported alternative exists for the original design. This page consolidates the verified manufacturer and distributor information, exposes missing datasheet-dependent values rather than estimating them, and organizes sourcing, application, and design guidance for engineers evaluating the BD3402KS2.

Cotação Contato
BD3403FV-E2 - 2-Channel Audio Signal Processor | ROHM
BD3403FV-E2

BD3403FV-E2 - 2-Channel Audio Signal Processor | ROHM

The ROHM BD3403FV-E2 is a 2-channel audio signal processor with built-in 3-band equalization, operating from 6.5 V to 9.5 V in a 40-pin SSOPB package. It is designed for surround and rear-volume processing in audio systems, with a two-stage front-volume and rear-volume configuration intended to improve signal-to-noise performance. The device also uses resistance-ladder volume and tone circuits and includes soft switching to reduce shock noise during switching operations. An audio signal processor is an analog IC that conditions multiple audio channels through volume, tone, balance, or equalization functions before the signal reaches amplifiers and speakers. In the broader hierarchy, it belongs to the audio processor and analog signal-conditioning IC category within audio and video semiconductors. Its role is to provide local channel control and tonal shaping while preserving compatibility with conventional analog audio signal paths. The BD3403FV-E2 is a 2-channel device with a 40-SSOPB package. Its operating supply range of 6.5 V to 9.5 V suits powered audio equipment, while the resistance-ladder implementation is intended to provide low-noise, low-distortion volume and tone adjustment. Soft-switch circuitry is specifically intended to reduce shock sound when switching functions occur. The manufacturer describes the device as using the BiCOMS process with low power consumption. The signal-processing architecture separates front-volume and rear-volume stages. This two-stage arrangement is intended to improve signal-to-noise ratio while allowing separate control of surround and rear channels. The built-in 3-band equalizer provides bass, mid, and treble adjustment, making the device appropriate for systems requiring multiple tonal controls rather than a simple passive volume network. Typical applications include home-theater receiver channel control, surround-sound preamplifier circuitry, automotive audio head units, and powered stereo systems. In a home-theater design, the processor can sit between source-level audio inputs and power amplifiers, allowing independent channel-level and tonal adjustments. Automotive use is also conceptually aligned with the 6.5 V to 9.5 V supply range, although qualification and environmental requirements must be checked separately. When laying out the circuit, follow the manufacturer pin-description table for the 40-SSOPB footprint and keep the analog signal path short and away from switching-power nodes. Confirm the exact external component network, recommended decoupling, and control-interface implementation in the manufacturer datasheet before production release. The product page identifies the BD3403FV family as discontinued, so lifecycle planning should include last-time-buy assessment. This page combines the manufacturer product description with distributor package and lifecycle information, then adds application guidance, design cautions, and a structured comparison for engineers evaluating the BD3403FV-E2.

Cotação Contato
BD3427K - 44-LQFP Audio Special Purpose IC | ROHM Semiconductor
BD3427K

BD3427K - 44-LQFP Audio Special Purpose IC | ROHM Semiconductor

ROHM Semiconductor BD3427K is an audio-channel integrated circuit classified as an Audio Special Purpose device and supplied in a 44-LQFP package. The verified catalog data identifies the BD3427K as orderable part 846-BD3427K-ND, while the BD3427K-BJ variant is associated with tray packaging and the BD3427K-E2 variant with reel-and-tape packaging. The available evidence establishes the component family, manufacturer, package class, and ordering options, but it does not expose the electrical ratings required for a complete technical characterization. An audio special-purpose IC is an application-specific signal-processing semiconductor optimized for a defined function within an audio signal chain. The broader hierarchy is audio integrated circuit, signal-processing IC, semiconductor, and electronic component. Unlike a general-purpose operational amplifier, this device category is assigned around a predefined audio function, allowing a manufacturer to optimize circuit integration, channel behavior, and external support requirements. Exact functional details for the BD3427K must be confirmed from the manufacturer datasheet. The most reliable product-specific attributes available from the supplied sources are the ROHM Semiconductor origin, Audio Channel classification, 44-LQFP package, and packaging options. These characteristics make the BD3427K relevant to audio equipment requiring a dedicated multi-channel or special-purpose audio IC. The datasheet-directory entry identifies the target as Tray packaged, while the reel variant is listed as supplying 1000 units per package. No verified operating voltage, output configuration, channel count, frequency response, distortion, or thermal-resistance values were supplied. The BD3427K designation distinguishes the base catalog order code from suffix variants associated with packaging or regional ordering. BD3427K-BJ is listed with a 44-LQFP package and tray presentation, whereas BD3427K-E2 is listed with reel-and-tape presentation and a standard quantity of 1000. These suffixes must not be interpreted as different electrical grades without confirmation from the ROHM datasheet. For procurement, the manufacturer part number, package, temperature grade, and intended assembly process should be matched exactly before ordering. Typical design use would be in multichannel audio equipment where a dedicated audio-channel IC replaces a larger collection of discrete analog functions. Potential system locations include powered speakers, home-audio electronics, professional-audio interfaces, and compact consumer-audio products. Because the verified data does not specify supply voltage, channel configuration, signal amplitude, or stability requirements, the BD3427K should be selected only after its complete electrical limits and reference application circuit have been reviewed. A critical design practice is to avoid treating a tray-packaged and reel-packaged ordering code as an electrical substitute without checking the datasheet. Both package and pinout must match the PCB footprint, while input impedance, output drive, supply voltage, and thermal limits must also satisfy the intended circuit. Review the ROHM datasheet and pin configuration during schematic capture and before committing a production BOM, especially when moving between BD3427K, BD3427K-BJ, and BD3427K-E2. This page consolidates the verified distributor identity, package information, ordering variants, source links, and engineering cautions for BD3427K. It also distinguishes documented facts from missing electrical parameters and separates confirmed ordering information from unverified drop-in replacements. For a complete design review, obtain the current ROHM manufacturer datasheet and verify lifecycle, qualification, absolute maximum ratings, and recommended operating conditions.

Cotação Contato
BD3427K-BJ Audio Channel IC, 44-LQFP | ROHM Semiconductor
BD3427K-BJ

BD3427K-BJ Audio Channel IC, 44-LQFP | ROHM Semiconductor

The ROHM Semiconductor BD3427K-BJ is a single-channel audio processing IC supplied in a 44-pin LQFP package. It is categorized by distributors as an Audio Special Purpose device, placing it within the broader integrated-circuit hierarchy of audio ICs and amplifier ICs. The verified product information confirms the exact MPN, ROHM Semiconductor branding, 44-pin LQFP construction, tray packaging, and RoHS3 compliance. Its key applications involve processing or supporting one audio channel in compact consumer and industrial audio equipment. An audio-channel IC is a specialized semiconductor that manages one channel of an audio signal path. Depending on its internal architecture and external configuration, such a device may provide decoding, amplification, filtering, conversion, or interface functions. The supplied distributor records classify the BD3427K-BJ as an Audio Channel device rather than a general-purpose op-amp or power amplifier, so its internal architecture and exact signal-processing functions should be confirmed in the manufacturer datasheet before schematic capture. The most clearly documented physical characteristics are the 44-LQFP package and tray packaging. A 44-pin LQFP is a surface-mount quad flat package that supports a comparatively dense connection interface on a compact PCB. The exposed lead arrangement accommodates power, ground, control, and signal connections, although the verified data does not provide the pin names, electrical ratings, operating limits, or application circuit required to document those functions accurately. ROHS3 compliance is explicitly reported for the BD3427K-BJ, making it suitable for applications whose procurement requirements include restriction of hazardous substances. The available records do not establish REACH status, AEC-Q100 qualification, halogen-free status, conflict-minerals compliance, operating-temperature range, supply voltage, channel performance, or output-power capability. Those values remain intentionally uncharacterized rather than inferred from the device category. Typical design uses include multichannel audio systems in which one BD3427K-BJ supports each channel, consumer audio equipment, industrial sound equipment, and compact communication products. Because the verified data does not identify the device's exact internal signal path, engineers should use the manufacturer datasheet to confirm whether it supports analog amplification, digital decoding, filtering, or another function. This verification is essential before assuming that it can directly drive a loudspeaker or accept a particular digital audio format. PCB design should reserve all 44 package positions and verify the pinout against the current ROHM Semiconductor datasheet before routing. Keep power and ground connections short, place required bypass components at their designated pins, and preserve the manufacturer's recommended land pattern. Do not substitute a generic 44-LQFP footprint without checking body size, pitch, pin numbering, and any exposed thermal-pad requirements. This product record consolidates verified distributor inventory, exact package information, RoHS3 status, sourcing links, and clearly bounded engineering guidance. It also distinguishes confirmed facts from missing technical data, helping designers avoid unsupported assumptions about performance, pin compatibility, and substitute devices.

Cotação Contato
BD3427K-E2 - Audio Special Purpose IC | ROHM Semiconductor
BD3427K-E2

BD3427K-E2 - Audio Special Purpose IC | ROHM Semiconductor

ROHM Semiconductor BD3427K-E2 is an audio special-purpose integrated circuit identified in distributor data as an audio amplifier IC, supplied in a 44-LQFP package and offered in tape-and-reel packaging. The available verified information confirms its manufacturer, MPN, category placement, package format, reel packaging, component status references, and a representative distributor price of $2.9084 per unit. Detailed electrical characteristics, internal functions, pin assignments, power requirements, output configuration, and application-specific operating limits are not present in the supplied source excerpts, so those values remain marked as data needed rather than being inferred. What is an audio special-purpose IC? An audio special-purpose IC is an integrated circuit designed for a defined audio-signal task rather than a general-purpose analog or digital function. Within the broader product hierarchy, it belongs to the amplifier IC and audio signal-processing categories, which are part of integrated circuits used in audio systems. The BD3427K-E2 is specifically listed under Audio Special Purpose and Audio Channel classifications in verified distributor information. The key verified product features are the 44-LQFP package, tape-and-reel packaging, ROHM Semiconductor branding, and availability references from multiple distributors. One distributor listing identifies the package as 44LQFP and provides a unit price of $2.9084. Another distributor describes the part as ROHS3 compliant, while additional listings report quantities of 4,359 and 32,800 units. These observations should be confirmed against the manufacturer datasheet and current authorized-distributor inventory before design release. The part is relevant to audio-channel designs where a dedicated audio IC, compact surface-mount construction, and distributor availability are important. Because the supplied excerpts do not expose the internal block diagram, signal path, channel count, power-supply voltage, control interface, or thermal characteristics, engineers should treat it as an obsolete or legacy sourcing candidate until those parameters are independently confirmed. The main design consideration is not to assume generic audio-amplifier compatibility from the package name alone. Pin mapping, exposed-pad requirements, supply sequencing, output load, and thermal performance must be matched to the manufacturer documentation. This page distinguishes verified observations from missing technical data and avoids presenting unsupported electrical claims as facts. This page combines the supplied distributor records, package information, pricing reference, sourcing observations, and a structured verification checklist. It is intended to support initial BOM research while directing engineers to the authoritative manufacturer documentation for final qualification.

Cotação Contato
BD3429K-E2 Audio Channel IC, 44-Pin QFP | ROHM Semiconductor
BD3429K-E2

BD3429K-E2 Audio Channel IC, 44-Pin QFP | ROHM Semiconductor

ROHM Semiconductor BD3429K-E2 is an audio-channel integrated circuit offered in a 44-pin QFP package for surface-mount PCB integration. The supplied product listings identify it as an “Audio Channel” device and classify it under Audio Special Purpose ICs. Its complete electrical ratings, supported audio formats, operating voltage, output configuration, clock requirements, and signal-processing architecture are not included in the verified excerpts, so no unsupported performance figures are asserted here. An audio-channel IC is a specialized integrated circuit used to receive, decode, convert, reproduce, or route audio signals within an electronic system. Its broader hierarchy is audio IC → audio-channel IC → Audio Special Purpose IC → semiconductor. This classification places the BD3429K-E2 in the signal-processing portion of a multimedia system rather than in a generic operational amplifier or power-management category. The verified listing confirms three defining implementation facts: the BD3429K-E2 belongs to ROHM Semiconductor, its production status is reported as Active, and its enclosure is a QFP with 44 pins. One distributor record further identifies the physical format as 44-LQFP. The supplied data does not expose the complete pin map, exposed-pad arrangement, electrical limits, or analog performance, so engineers should confirm those items in the manufacturer datasheet before schematic capture or PCB release. The -E2 ordering suffix is present in the exact manufacturer part number used by distributor databases. Its meaning cannot be inferred from the supplied excerpts because no ordering-information table was provided. Likewise, the data does not establish whether the suffix denotes a temperature grade, packing configuration, production revision, or another ordering attribute. The base family member BD3429K appears in the verified listings, but equivalence of its ordering codes cannot be confirmed from the supplied text. The most plausible application areas are embedded audio systems, consumer-audio equipment, and digital audio processing platforms where a dedicated audio-channel IC is required. However, the verified excerpts do not name specific end applications or reference designs. Before selecting this device, engineers should verify its supported sample rates, codec interfaces, analog inputs and outputs, control interface, clocking, and supply requirements against the complete manufacturer datasheet. The principal PCB-design consideration is that the 44-pin QFP requires fine-pitch routing and careful assembly planning. Because pin names, dimensions, pitch, and the exposed-pad configuration are unavailable in the verified excerpts, land-pattern selection should be based on the official package drawing rather than inferred from the generic “QFP44” description. Pin and solder-mask designators should also be checked against the exact -E2 ordering code. This page consolidates the verified distributor and Octopart listings, distinguishes known device facts from missing technical data, and avoids presenting speculative electrical specifications or unverified drop-in replacements as confirmed engineering information. It also records the supplied datasheet, distributor, and comparison-tool sources for engineers who need to complete footprint, pinout, pricing, and lifecycle verification.

Cotação Contato
BD3433K-E2 - 6-Channel Audio Volume Control IC | ROHM
BD3433K-E2

BD3433K-E2 - 6-Channel Audio Volume Control IC | ROHM

ROHM Semiconductor BD3433K-E2 is a six-channel electronic volume control IC for 5.1-channel car-theater audio systems, operating from a 44-QFP 10 x 10 mm surface-mount package. Its VCC supply range is 7.0 V to 9.5 V, its VEE supply range is -9.5 V to -7.0 V, and its typical total harmonic distortion is 0.001%. The device also provides 106 dB typical crosstalk between channels, 2.5 uVrms typical output noise voltage, and 2 uVrms typical residual output noise voltage. An electronic volume control is an audio signal-processing IC that controls signal amplitude electronically rather than through a conventional mechanical potentiometer. Within the broader product hierarchy, it is an audio special-purpose IC and a signal-conditioning device within the semiconductor category. Its primary role is to provide programmable, soft-switching gain control while preserving low distortion and channel separation across a multichannel home or vehicle audio system. The BD3433K-E2 integrates a six-channel input selector with independently controlled front and rear selection, input gain amplification, six-channel independently controlled electronic volume, and output gain amplification for two output lines. It also supports differential input for monophonic signals and soft-switching operation. The stated maximum input voltage is 4.25 Vrms typical, allowing the device to operate within the signal range used by the target 5.1-channel audio architecture. The 106 dB typical crosstalk specification indicates strong isolation between the six processing channels, while the 0.001% typical THD specification identifies the device as suitable for precision multichannel audio signal paths. Low output and residual output noise values are important where channel-level noise can affect quiet passages. Independent front and rear control also supports systems requiring separate adjustment of main and surround-speaker channels rather than a single linked volume control. Typical uses include 5.1-channel car-theater systems, automotive head units, home-theater preamplifiers, surround-sound processors, and multichannel audio switching networks. The positive VCC and negative VEE supplies support a bipolar signal environment, while the six independent volume paths map directly to front-left, front-right, center, surround-left, surround-right, and subwoofer channel organization. Designers should preserve the negative and positive supply rails required by the device and verify that the external source and load networks remain within the documented signal limits. The QFP package also requires careful thermal and layout planning because audio and automotive equipment may operate in elevated ambient temperatures. Exact pin names, decoupling requirements, and application-circuit values require confirmation against the manufacturer datasheet. This page consolidates the verified distributor description, datasheet-hosted electrical specifications, availability information, and application-focused engineering guidance. It also distinguishes documented performance from unverified substitution claims, providing a more useful basis for component selection, PCB planning, and sourcing BD3433K-E2.

Cotação Contato
BD3451KS - Dual Automotive High-Side Switch IC | ROHM
BD3451KS

BD3451KS - Dual Automotive High-Side Switch IC | ROHM

The ROHM BD3451KS is an automotive audio special-purpose IC identified by distributor listings as a dual high-side switch IC with diagnostic functions for automotive applications. Other catalog records classify the device as an 8-channel sound processor, while the DigiKey record identifies it within the Audio Special Purpose category. The available verified information confirms its automotive audio and switching role but does not provide a manufacturer datasheet URL, electrical limits, timing values, complete pinout, or ordering information. The KS package is referenced by one distributor listing as 100SQFP, but the exact dimensions, exposed-pad arrangement, and pin numbering remain unavailable in the supplied records. An automotive high-side switch IC is a semiconductor interface that controls a load connected to a positive supply rail while monitoring circuit conditions for fault detection. Diagnostic functions can allow a vehicle controller to identify open, short, or abnormal load states. In a sound system, such an IC may combine output switching with channel-level control, helping protect downstream audio circuitry and report faults to a larger control system. The supplied 8-channel sound-processor description further indicates a role in multi-channel automotive audio signal management. The BD3451KS therefore belongs to the functional hierarchy of automotive integrated circuit, specifically a high-side switch with diagnostic functions and sound-processing characteristics. Its key advantage is integration: switching, channel handling, and fault monitoring are combined in one package rather than implemented through separate discrete drivers and protection networks. This can simplify PCB allocation and firmware coordination, although the available evidence does not establish whether the IC drives speakers directly or controls intermediate audio power stages. The verified catalog information does not state the operating voltage, output-current limit, channel configuration, diagnostic thresholds, slew rate, quiescent current, thermal resistance, or automotive qualification status. Those values must be taken from the official ROHM datasheet before power-loss calculations, protection design, or PCB implementation. The 100SQFP package reference also requires verification of body size, lead pitch, thermal-pad dimensions, and exposed-pad connectivity. Distributor category labels should not be treated as a substitute for those electrical and mechanical details. Potential uses include automotive high-side audio-output control, protected connection of powered audio loads, eight-channel sound management, diagnostic monitoring of external amplifier or speaker interfaces, centralized vehicle audio routing, and ECU-integrated audio control. These applications follow directly from the supplied descriptions of a dual high-side switch IC with diagnostics and an 8-channel sound processor. They do not imply that the BD3451KS directly delivers loudspeaker power, because no output-drive capability is confirmed in the verified records. Design review should begin with a complete ROHM pinout and application-circuit comparison. Engineers should verify absolute maximum ratings, logic thresholds, fault behavior during reset, diagnostic timing, short-circuit response, thermal limits, and whether the exposed pad must be connected to ground or another rail. A valid layout also needs short, low-impedance supply paths and careful handling of output inductive loads to prevent excessive voltage excursions. This page separates confirmed catalog facts from unverified technical attributes and combines distributor availability information with practical selection guidance. Because the supplied data contains no confirmed drop-in substitute, this product record does not present unverified cross-brand parts as pin-compatible alternatives. Obtain the official ROHM datasheet before ordering, footprint approval, or production release.

Cotação Contato
BD3452KS - 8-Channel 7.1ch Sound Processor | ROHM
BD3452KS

BD3452KS - 8-Channel 7.1ch Sound Processor | ROHM

ROHM Semiconductor BD3452KS is a 7.1-channel sound processor with eight output channels, a nine-channel input selector, eight-channel volume control, and gain amplification integrated into a single chip. The device operates from 13 V to 14.6 V and is offered in a 100-SQFP package measuring 14 mm by 20 mm. A sound processor is an audio signal-processing IC that selects among multiple audio sources, applies channel gain and volume control, and distributes the resulting signals to multichannel output stages. Within the broader semiconductor hierarchy, the BD3452KS belongs to the audio processing IC and signal processor categories, where it bridges source selection, channel-level control, and home-theater audio system routing. The principal documented features include a nine-channel input selector, eight-channel volume control, eight-channel gain amplification, and support for 7.1-channel audio processing. These functions are intended for AV receivers, home-theater systems, and mini-component systems. The consolidated implementation reduces the number of separate routing and volume-control blocks required in a multichannel receiver. The BD3452KS uses a two-wire control interface according to the distributor product information. This interface is intended for integration with a system controller while leaving the device's signal-processing and channel-adjustment functions local to the audio subsystem. Its 13 V to 14.6 V operating range indicates that it is designed around a conventional internal receiver supply rather than a low-voltage portable system. Typical application roles include AV receiver channel routing, home-theater input selection, and mini-component multichannel amplification control. In these systems, the processor can select the appropriate source and apply per-channel gain and volume before signals reach external power amplifiers or downstream audio circuitry. The eight-output-channel architecture is particularly relevant to surround-sound configurations. For new designs, verify the complete pin configuration, control protocol, electrical limits, and signal-path behavior against the manufacturer datasheet before layout or firmware development. Because the available verified information identifies the package and core functions but does not provide a complete pin table or detailed timing data, those implementation details should not be inferred from generic sound-processor designs. This page consolidates verified distributor information, the manufacturer-hosted datasheet, function-level application guidance, selection criteria, and explicitly identified data gaps. It is designed to provide practical procurement and engineering context without presenting unverified electrical values, replacement parts, or lifecycle assumptions as established facts.

Cotação Contato
BD3460FS-E2 6-Channel I2C Audio Volume Control | ROHM
BD3460FS-E2

BD3460FS-E2 6-Channel I2C Audio Volume Control | ROHM

The ROHM Semiconductor BD3460FS-E2 is a 6-channel electronic volume controller for automotive and consumer audio systems, featuring a 7 V to 9.5 V supply range, I2C control, and a 24-SSOP-A surface-mount package. The device uses Advanced Switch technology to mitigate shock noise during volume changes, helping preserve smooth audio output while a fader is adjusted. Its operating temperature range extends from -40 °C to 85 °C, supporting use across industrial temperature environments. An electronic volume control is an integrated audio-processing function that applies programmable attenuation to multiple analog audio channels. Within the broader hierarchy of audio ICs, it sits between audio amplifiers and system microcontrollers, providing a centralized control interface for source selection, fader adjustment, and attenuation. The BD3460FS-E2 also includes ground isolation for external voice inputs used in portable-audio and car-navigation systems. Key features include six controlled audio channels, I2C register control, an operating supply of 7 V to 9.5 V, and the ROHM Advanced Switch function for reducing volume-switching shock noise. The device is identified as an active automotive-audio and consumer-audio part. Its 24-SSOP-A package uses a 5.40 mm body width and supports surface-mount assembly. The operating range of -40 °C to 85 °C makes it suitable for instrumented vehicles and temperature-demanding consumer equipment. The internal architecture divides system-level volume management from the final power-amplifier stage. An I2C-compatible host can write attenuation commands to the relevant channel registers, allowing software or a host microcontroller to coordinate multiple audio zones. Ground isolation improves the handling of external voice-source inputs by reducing unwanted ground-related coupling between connected audio sources. Typical applications include automotive head units, car-navigation systems, multi-zone vehicle audio, portable audio equipment, consumer audio receivers, and other systems requiring coordinated attenuation of several analog channels. The six-channel architecture reduces the need for separate discrete fader networks when one system must control multiple sound paths. Designers should review the manufacturer pin-description table and recommended application circuit before assigning PCB tracks. Decoupling capacitors should be placed close to the supply and ground pins, while the I2C interface and analog audio paths should be routed with attention to grounding and signal integrity. Adequate input, output, and control-signal levels must also be confirmed against the device limits in the manufacturer datasheet. This product page organizes the technical specifications, pinout location, application guidance, lifecycle information, and sourcing details for the BD3460FS-E2. It also distinguishes verified device capabilities from options that require board-level or firmware validation before selection.

Cotação Contato
BD3461FS-E2 - 6-Channel Audio Volume Control IC | ROHM Semiconductor
BD3461FS-E2

BD3461FS-E2 - 6-Channel Audio Volume Control IC | ROHM Semiconductor

The ROHM Semiconductor BD3461FS-E2 is a 6-channel electronic volume control IC with built-in advanced switch functionality, supplied in a 24-pin SSOP-A package. It is designed for general-purpose audio systems requiring multiple channel volume adjustment, external sound mixing, and efficient audio signal routing. The device operates from a 7 V to 9.5 V supply according to the verified distributor listing, while its I2C interface supports controlled adjustment of six audio channels from a host processor. The BD3461FS-E2 is categorized as an audio volume control IC and is intended for portable audio equipment, car navigation systems, and other multi-channel sound products. Its integrated advanced switch allows audio sources to be mixed through the volume-control function rather than requiring a separate switching stage in every design. An electronic volume control IC is a type of analog audio processor that adjusts signal amplitude using internal attenuator and control circuitry. The BD3461FS belongs to the broader audio processor hierarchy: electronic volume controller, audio signal-path IC, analog audio IC, and ultimately semiconductor. This makes it more specialized than a general-purpose operational amplifier. Instead of amplifying a signal directly for a loudspeaker, the BD3461FS controls the level presented to downstream amplifiers while providing channel selection and source-mixing flexibility. Its built-in advanced switch is particularly useful when the product must combine multiple audio sources, such as music playback and navigation guidance, into a common output path. The verified product information identifies the BD3461FS-E2 as a 6-channel device with I2C bus control and a 7 V to 9.5 V operating supply range. Its 24-SSOP-A package provides a surface-mount implementation for compact audio equipment. The general-purpose electronic-volume description and integrated switching function distinguish it from simple fixed attenuators. Engineers can use the I2C control path to integrate volume changes into a system controller rather than relying on mechanical potentiometers. The device is also suitable for external sound mixing in the favorite channel, a feature specifically described for portable audio and car navigation guide-sound applications. The BD3461FS-E2 is marked by ROHM as “Not Recommended for New Designs,” meaning that it cannot be used for new designs or design diversion. Existing equipment may still use the part for repair or maintenance, but new product development should use a currently recommended audio-processing solution. The available pricing is approximately $5.4110 per unit at the referenced distributor listing, as of 2026-10-30. Volume pricing, complete lifecycle timing, and detailed electrical limits were not included in the verified data, so those values require confirmation from ROHM or an authorized distributor before committing a production order. Typical applications include multi-zone audio systems, portable media devices, automotive navigation audio, navigation prompt mixers, and other products that need independent level control for several sound channels. In an automotive navigation system, the advanced switch can combine a music source with navigation announcements through the designated favorite channel. The I2C interface permits the host controller to change levels during system operation, while the 24-SSOP-A package supports automated PCB assembly. Designers should still confirm the complete application circuit, external component requirements, signal levels, and timing behavior against the manufacturer datasheet. The principal design consideration is lifecycle risk. Because ROHM explicitly states that BD3461FS-E2 is not recommended for new designs, engineers should treat it as a maintenance or legacy-platform component rather than a default choice for new consumer products. For an existing board, verify the exact package, pinout, supply voltage, I2C address and electrical timing, and audio-path configuration before substitution. For new equipment, request an active ROHM alternative or redesign the audio subsystem around a currently supported device, because a distributor listing or cross-reference result alone does not prove pin-to-pin compatibility. This page combines verified ROHM product status, distributor descriptions, the available price and package information, same-family alternatives, and practical selection guidance. It distinguishes confirmed technical facts from parameters that still require datasheet review, helping engineers compare the BD3461FS-E2 without treating generic cross-reference results as guaranteed drop-in replacements.

Cotação Contato
BD3464FV-E2 - 4-Channel I2C Audio Volume Controller | ROHM
BD3464FV-E2

BD3464FV-E2 - 4-Channel I2C Audio Volume Controller | ROHM

The ROHM BD3464FV-E2 is a general-purpose four-channel electronic volume controller with a built-in advanced switch, an operating supply range of 7 V to 9.5 V, and a 20-pin SSOP-B package. It uses an I2C control interface, supports 5 V control, and is intended for multichannel audio systems that require software-controlled attenuation. The device is classified by ROHM as not recommended for new designs, so its appropriate use is primarily in established designs requiring lifecycle support rather than new platform creation. An audio volume controller is an audio signal-processing IC that applies electronic attenuation between source and amplifier stages. Its broader hierarchy is audio volume controller, audio processor, analog audio IC, interface IC, and semiconductor. Unlike a passive potentiometer, the BD3464FV-E2 permits volume changes through an I2C command while preserving a controlled signal path and reducing dependence on mechanical adjustment. Key features include four independently controlled audio channels, an advanced-switch circuit intended to reduce volume-control switching noise, and low-current operation implemented with a Bi-CMOS process. The manufacturer data also identifies I2C control, 5 V control compatibility, a 7 V to 9.5 V supply range, and placement of I/O terminals together to simplify PCB layout and reduce board area. A distributor description reports RoHS3 compliance. Technically, the part combines digital command processing with an analog attenuation function. The advanced switch is intended to suppress noise associated with changing the attenuation state, which is important when volume adjustments occur during music or speech playback. Its Bi-CMOS implementation combines bipolar and CMOS characteristics with an emphasis on low current consumption. The complete electrical limits, control register map, attenuation steps, frequency response, and distortion specifications require confirmation from the manufacturer datasheet. Typical uses include powered speakers, mini hi-fi systems, automotive head units, home-theater receivers, and other multichannel audio products in which software control is preferable to a mechanical volume control. The I2C interface also allows a system controller to coordinate attenuation with playback status, mute functions, or source selection. Designers should verify the complete pin function map, recommended input and output coupling network, I2C address configuration, and external component values against the manufacturer datasheet before making a board revision. Because the part is not recommended for new designs, new products should generally use a currently recommended audio volume-control IC unless continuity with an existing platform is required. This page consolidates the verified manufacturer and distributor information, distinguishes documented capabilities from unavailable technical details, and provides application and design guidance without inventing missing electrical limits, pricing, pin assignments, or drop-in equivalents.

Cotação Contato
BD3465FV-E2 4-Channel Audio Volume Controller | ROHM Semiconductor
BD3465FV-E2

BD3465FV-E2 4-Channel Audio Volume Controller | ROHM Semiconductor

The ROHM Semiconductor BD3465FV-E2 is a general-purpose four-channel electronic volume controller with a built-in advanced switch, supplied in a 20-pin SSOP-B package. It is designed for audio-volume control applications and uses an I2C bus for control, with the verified distributor description identifying four output channels and a 7 V to 9.5 V operating supply range. The device is intended for systems requiring independent or grouped attenuation of multiple audio signal paths. An electronic volume controller is an audio signal-chain IC that adjusts signal amplitude in the analog domain while leaving the source and destination circuitry largely unchanged. In the broader product hierarchy, the BD3465FV-E2 belongs to the audio special-purpose IC category, combining volume control and switching functions in a single integrated circuit. This integration can reduce the number of discrete controls and simplify system-level audio routing in multi-channel equipment. The key verified feature set includes four-channel volume control, a built-in advanced switch, I2C control, a 20-SSOP-B package, and a stated supply range of 7 V to 9.5 V. The operating temperature range reported by LCSC is -40°C to +85°C. The product is identified by ROHM as “Not Recommended for New Designs,” so it should be considered for existing designs, controlled design diversion, or legacy supply rather than selected for a new platform without qualification. The BD3465FV-E2 is categorized by DigiKey as an Audio Special Purpose IC and by Mouser as an audio processor or audio special-purpose device. Its integrated switch function can be useful when an audio system needs to route or isolate several channels while maintaining central volume control. The exact gain range, channel-to-channel attenuation behavior, control-register map, recommended application circuit, and detailed electrical limits are not present in the supplied verified excerpts and are therefore not asserted here. Typical legacy applications include multi-channel consumer audio, audio processing modules, powered speakers, home-entertainment equipment, and other systems using an I2C-controlled volume stage. Designers should verify the complete manufacturer datasheet before finalizing a replacement, particularly the supported input/output signal range, bypass behavior, switch configuration, decoupling requirements, and timing of the I2C interface. The principal design consideration is lifecycle status. Because ROHM marks the device as not recommended for new designs, engineers should preserve the existing footprint and pinout where possible, confirm that distributor inventory is traceable, and avoid changing the surrounding application circuit without reviewing the full datasheet. This page synthesizes the verified product status, distributor descriptions, pricing excerpts, package information, and practical sourcing guidance for engineers evaluating BD3465FV-E2.

Cotação Contato
BD34701KS2 - 7.1ch Sound Processor with Micro-Step | ROHM
BD34701KS2

BD34701KS2 - 7.1ch Sound Processor with Micro-Step | ROHM

The ROHM BD34701KS2 is a 7.1-channel surround-sound processor with eight independent volume channels, built-in micro-step volume control, and an operating supply range of 6.5 V to 7.5 V. The device is packaged in a 52-pin SQFP-T (10 mm × 10 mm) surface-mount package and supports I2C-oriented control for audio-system integration. An audio processor is a specialized interface IC that receives multiple audio signals and applies channel routing, attenuation, and volume-control functions before the signals reach amplifiers, speakers, or downstream codecs. The BD34701KS2 belongs to the broader audio signal-processing hierarchy that includes audio processors, audio codecs, mixers, and surround-sound processors. The BD34701KS2 provides an eight-channel independent volume system that can be configured for 7.1-channel surround operation. Its micro-step volume function is intended to reduce switching shock noise during volume changes, supporting cleaner transitions in consumer audio equipment. The device also includes an eight-channel input-selector architecture, dual input selection for zone 2, and multi-channel input capability. Eight independently adjustable channels make the processor useful when several audio paths must receive different attenuation levels. Instead of relying on a separate volume-control stage for every output, a system can centralize channel selection and level control within the processor and control the configuration through its serial interface. The 52-pin package integrates the associated control and signal connections into a compact square surface-mount footprint. Typical applications include 7.1-channel home-theater systems, multi-zone receivers, active speakers, automotive audio head units, and other multichannel amplification systems. The operating range of 6.5 V to 7.5 V suits equipment using a regulated 7 V-class audio rail, while independent channel attenuation simplifies calibration across loudspeaker positions. When laying out a board, use the manufacturer's pin description table to assign every pin and preserve the exposed-package land pattern and thermal requirements. Confirm the external component values, interface addresses, and supported channel configuration from the manufacturer datasheet before production release. A separate regulator and decoupling network should provide a quiet 7 V-class rail at the device supply pins. This page summarizes the processor architecture, package characteristics, practical integration considerations, and verified sourcing paths. It also distinguishes the documented BD34701KS2 from unverified replacement parts so design engineers can avoid assuming that a similar audio processor is electrically and mechanically interchangeable.

Cotação Contato
BD34704KS2 - 8-Channel 7.1ch Audio Processor | ROHM Semiconductor
BD34704KS2

BD34704KS2 - 8-Channel 7.1ch Audio Processor | ROHM Semiconductor

ROHM Semiconductor BD34704KS2 is an 8-channel analog audio sound processor optimized for 7.1-channel surround systems, operating from a 6.5V to 7.5V supply in an 80-pin SQFP-T80C package. It combines eight independent volume channels, multi-zone audio routing, and micro-step volume attenuation in one signal-processing IC. An audio sound processor is a specialized interface IC that controls signal level, channel distribution, and zone routing between audio sources and amplifier stages. In a home-theater hierarchy, the BD34704KS2 sits between source-selection circuitry and powered speakers or amplifiers. It is designed to support surround-sound channel management while reducing audible transitions during attenuation. The principal features include independent volume control for eight channels, support for 7.1-channel systems, and micro-step volume operation. According to the manufacturer, improved operational-amplifier specifications and optimized element layout support high-quality audio reproduction. Micro-step attenuation is especially useful when reducing channel level, because the finer adjustment steps can reduce switching pop noise compared with abrupt volume transitions. The device also supports multi-zone input selection, allowing one sound processor to serve multiple listening areas or route different source channels to different output groups. This integration can simplify the analog control section of an AV receiver, home-theater controller, or multi-zone audio amplifier while reducing the number of discrete attenuators and routing components required. Typical uses include 7.1-channel home-theater systems, AV receivers, surround-sound amplifiers, multi-zone audio equipment, and other analog audio products requiring eight independently controlled channels. The 6.5V to 7.5V operating range places it in a conventional analog power rail, allowing system-level design around a nominal 7V supply. Layout quality is critical because the manufacturer's product information specifically identifies optimized element layout as part of the device's sound-quality strategy. Place input and output paths away from switching supplies and high-current return paths, maintain symmetrical grounding where practical, and decouple the analog supply close to the device. This product page combines the known 8-channel architecture, 7.1-channel use case, micro-step volume behavior, supply range, and package information with practical guidance for AV receiver, amplifier, and multi-zone audio designs.

Cotação Contato
BD34705KS2 - 8-Channel 7.1ch Audio Processor | ROHM
BD34705KS2

BD34705KS2 - 8-Channel 7.1ch Audio Processor | ROHM

ROHM Semiconductor BD34705KS2 is an 8-channel, 7.1-channel surround-sound processor with built-in micro-step volume, a 6.5 V to 7.5 V supply range, and a 64-pin SQFP package. It is designed to provide independent volume control for eight audio channels, allowing a complete surround-sound signal path to be managed by one dedicated audio processor. An audio processor is a specialized integrated circuit that adjusts, routes, or conditions multiple audio channels according to control signals and system settings. Within the broader product hierarchy, the BD34705KS2 is an audio signal processor, then an audio IC, then a mixed-signal semiconductor used in consumer audio equipment. Its multi-channel architecture reduces the need for separate external volume-control stages when implementing 5.1-channel or 7.1-channel playback systems. The most prominent feature is the built-in micro-step volume system. ROHM states that micro-step volume reduces switching pop noise during volume attenuation, which is valuable when channel-level changes must occur smoothly in home theaters, audiovisual receivers, active speakers, and automotive infotainment systems. The independent eight-channel volume structure also supports separate front-left, front-right, center, rear-left, rear-right, and additional surround channels. The device operates from a stated 6.5 V to 7.5 V supply range. This range places it in powered audio-system equipment where a regulated 7.5 V rail is already available and where low-level audio signals can be routed into the processor. Its 64-SQFP package provides a compact surface-mount implementation, although the exact pin names and electrical limits require confirmation from the manufacturer datasheet. Typical applications include 7.1-channel home-theater systems, surround-sound audio processors, multi-zone entertainment equipment, powered speaker control, and other multichannel audio products. The processor can reduce external volume-control component count while providing coordinated attenuation across eight channels, reducing the risk of mismatched level changes and associated audible transients. Designers should confirm the supported input and output signal format, control interface, clocking requirements, decoupling, and exposed-pad connection from the manufacturer datasheet before layout. The 6.5 V to 7.5 V operating range also requires a regulator with adequate headroom and low noise. Placement near the audio signal paths can reduce sensitivity to interference, but analog and digital return paths still need careful grounding. This product page combines verified manufacturer and distributor information with application guidance, pricing context, package details, and a strict assessment of available drop-in alternatives. It also distinguishes documented capabilities from electrical parameters that still require datasheet verification, helping engineers make sourcing and design decisions without unsupported assumptions.

Cotação Contato
BD3481FS-E2 - Stereo Sound Processor IC | ROHM Semiconductor
BD3481FS-E2

BD3481FS-E2 - Stereo Sound Processor IC | ROHM Semiconductor

ROHM Semiconductor BD3481FS-E2 is an analog stereo sound-processor IC with a 4-channel input selector, gain amplifier, primary stereo volume control, four-channel fader volume, two-band equalizer, and an 8.5 V supply capability. The device is packaged in a 20-pin SSOP with a 0.8 mm pitch and combines several analog audio functions without requiring a dedicated microcomputer control interface. A sound processor is an integrated circuit that conditions and routes audio signals within a compact audio system. Its functional hierarchy is analog audio IC, sound processor, audio channel, and integrated circuit. By combining channel selection, amplification, level control, and equalization, this type of device reduces the number of discrete analog blocks required in compact consumer-audio equipment while allowing the product design to remain primarily analog. The BD3481FS integrates a stereo four-channel input selector, a gain amplifier, a stereo primary volume stage, a four-channel fader stage, and a two-band equalizer. These blocks support source selection and level adjustment within one package. The manufacturer documentation also describes the device as suitable for designs where microcomputer control is unnecessary, reducing control-software complexity compared with a software-commanded audio processor. The BD3481 family shares a documented architecture with BD3482FS. Both are described as sound processors containing a stereo four-channel input selector, gain amplifier, stereo primary volume control, four-channel fader volume, and two-band equalizer. The BD3481FS-E2 is supplied in a 20-pin, 0.8 mm-pitch SSOP, making compact analog-audio board layouts possible where component height and lead pitch are important constraints. Typical uses include compact stereo systems, radio equipment, cassette-style audio products, televisions, portable audio equipment, and other consumer products requiring analog source selection and volume control. The integrated architecture is particularly useful when several input sources must be selected and adjusted without relying on a system controller for routine signal-path operations. The principal design task is preserving clean signal routing through a dense analog network. Decoupling, grounding, input-source isolation, and control-settling behavior should be evaluated on the assembled board because switching transients and ground-current paths can affect audio performance. The exact pin assignments, recommended component values, supply-current limits, and detailed electrical limits must be taken from the manufacturer datasheet before schematic release. This product page organizes the documented BD3481FS-E2 functionality, packaging information, application guidance, and engineering trade-offs. It also distinguishes the BD3482FS family relationship from a verified drop-in replacement, helping designers avoid assuming that a similar sound processor can be substituted without footprint and functional verification.

Cotação Contato
BD3482FS-E2 - 2-Band Audio Processor | ROHM Semiconductor
BD3482FS-E2

BD3482FS-E2 - 2-Band Audio Processor | ROHM Semiconductor

The ROHM Semiconductor BD3482FS-E2 is a specialized audio sound-processor IC identified as a 2-band equalizer, with an 8.5 V operating supply and a 24-pin SSOP package. It is designed for compact audio systems that require local tone shaping within an analog signal path. The -E2 ordering suffix corresponds to the exact ROHM orderable variant shown in current distributor catalogs. An audio special-purpose IC is a type of signal-processing semiconductor used to modify or condition audio signals rather than merely amplify them. The BD3482FS belongs to the broader sound-processor hierarchy, which sits between general-purpose analog ICs and complete audio codec or amplifier solutions. Its two-band equalizer architecture provides separate control over selected frequency regions, making it useful in compact audio equipment, consumer electronics, and embedded sound systems. The device's principal documented attributes are its 2-band equalizer function, 8.5 V supply requirement, and 24-pin SSOP package. These characteristics place it in applications where the system already handles the power conversion and output amplification and needs a dedicated stage for frequency-response adjustment. The 24-pin package also provides a defined interface for external passive networks and control signals. The BD3482FS combines analog audio processing in a dedicated IC rather than requiring discrete filters, amplifiers, and switching networks. That integration can shorten the signal path and reduce the number of separate components needed for basic band control. Exact gain, frequency, attenuation, distortion, and input-impedance limits must be taken from the corresponding tables in the ROHM datasheet when setting the external network and validating signal amplitude. Typical uses include compact stereo systems, auxiliary audio modules, headphone accessories, portable equipment, and other products in which low-frequency and midrange balance may need adjustment. The part can also serve as the tone-control element in a larger signal chain when the system architecture separates equalization from source selection, volume control, and power amplification. For implementation, begin with the ROHM application circuit and preserve the recommended supply decoupling and analog grounding arrangement. Component tolerances, resistor ranges, and capacitor selections affect the attainable band centers and response shape, so their values should be calculated from the manufacturer's test conditions rather than copied indiscriminately between designs. This product guide combines the device identity, package information, application guidance, technical comparison framework, and practical design notes needed for an initial engineering review. Final circuit release should still include schematic review, signal-level verification, stability checks, and confirmation against the current ROHM datasheet and application notes.

Cotação Contato
BD3484FS-E2 - 4-Channel BiCMOS Audio IC | ROHM
BD3484FS-E2

BD3484FS-E2 - 4-Channel BiCMOS Audio IC | ROHM

ROHM Semiconductor BD3484FS-E2 is a four-channel BiCMOS tone-control audio circuit in a 32-pin PDSO32/SSOP-32 surface-mount package. Its four-channel architecture and tone-control function place it in the audio special-purpose IC category, where it can process multiple audio paths within a compact control system. The device is identified as RoHS compliant and is offered in a 32-pin package suitable for integration into multi-channel analog audio equipment. An audio special-purpose IC is a dedicated integrated circuit designed to implement a particular signal-processing function that is more specialized than a general-purpose op amp or standard interface converter. In this product category, the BD3484FS-E2 belongs to the broader hierarchy of audio ICs, analog signal-processing ICs, interface ICs, and integrated circuits. Its role is associated with four-channel tone control, allowing an equipment designer to manage multiple audio channels through a dedicated circuit rather than implementing equivalent passive networks and discrete amplification stages independently. The principal identifiable features of the BD3484FS-E2 are its four-channel organization, BiCMOS circuit technology, 32-pin package, and RoHS-compliant construction. BiCMOS combines bipolar and CMOS functions within an integrated circuit, a useful architecture for analog audio systems that need both transistor-level signal handling and low-power logic functions. The 32-pin PDSO32/SSOP-32 package provides a high pin count for multiple channel connections, control interfaces, and support functions while retaining a surface-mount assembly format. BD3484FS-E2 can be evaluated for multichannel tone-control boards, mixer subsystems, active speaker electronics, audiovisual receivers, and other audio products in which four signal paths require coordinated adjustment. Before finalizing a design, engineers should confirm the device’s exact gain, attenuation, frequency-response, control-voltage, supply-voltage, and channel-routing characteristics against the manufacturer datasheet. Those parameters determine whether the circuit topology can be used directly or requires added external components. A practical implementation places the IC close to the audio signal paths and separates high-gain routing from sensitive control circuitry. Short signal traces, stable reference and feedback networks, and appropriate grounding are especially important when the device processes multiple channels. Designers should also confirm decoupling requirements, control-interface logic levels, and the permitted input or output signal range before laying out the printed circuit board. The main engineering trade-off is functional integration. A dedicated four-channel tone-control IC can reduce duplicated discrete circuitry, simplify control layout, and shorten signal paths, but it also creates a design dependency on one IC’s fixed internal characteristics. Validation with representative audio levels and intended control ranges remains essential even when the package and basic channel count are suitable. This product record combines the verified device identity, package information, channel count, BiCMOS technology, RoHS status, source links, application guidance, and sourcing workflow. It is intended to help engineers locate the datasheet, assess board-level suitability, and request current commercial availability without relying on changing marketplace quotations.

Cotação Contato