Interface ICs
Subcategories
Products (3,400+)
BD37514FS-E2 4-Channel I2C Audio Processor | ROHM
ROHM Semiconductor BD37514FS-E2 is a four-channel audio tone processor with a built-in two-band equalizer, 7 V to 9.5 V analog supply range, I2C control, and a 20-pin SSOP-A package. It supports operating frequencies up to 0.4 MHz and is designed to reduce switching noise during input gain, mute, main volume, fader volume, bass, treble, and loudness adjustments. An audio tone processor is a type of analog signal-conditioning IC. Within the broader hierarchy of integrated circuits, it belongs to the audio processor and interface IC category, where it sits between source-selection circuitry and downstream amplifiers or loudspeakers. Its primary role is to combine input routing, level control, tone adjustment, and mute functions while limiting audible clicks and pops caused by abrupt switched-capacitor transitions. Key features include one differential input selector, three single-ended input selectors, and built-in ground-isolation amplifier inputs for external stereo signals. The advanced switch circuit applies controlled transitions to volume and tone functions, reducing switching noise at every adjustment step. The two-band equalizer provides bass and treble adjustment, while the integrated input-gain and mute controls support compact portable-audio signal chains. The BD37514FS-E2 uses a 7 V to 9.5 V supply architecture typical of analog audio equipment. Its 0.4 MHz operating capability is suitable for processing audio signals within the human-audible range, while the I2C interface allows a host controller to adjust tone, volume, fader, mute, and input-selection settings. The 20-pin SSOP-A package provides a surface-mount footprint for consumer audio boards. Typical uses include portable-stereo systems, compact radios, mini-audio systems, car-audio interface boards, and consumer electronics with several external audio inputs. The ground-isolation inputs are useful when the source and processor do not share an ideal common ground, while the selector architecture supports switching among stereo and single-ended sources. Designers should follow the manufacturer pin-description and typical-application circuits when assigning control pins and external components. Power and signal-ground paths should be kept compact, and I2C pull-up placement must be checked against the bus topology. Because ROHM marks the family as not recommended for new designs, it is best suited to maintaining established equipment rather than starting an unrelated new platform. This page consolidates the manufacturer feature set, package and interface details, sourcing guidance, application fit, and design cautions into an engineering-focused reference. It also distinguishes confirmed drop-in replacements from devices that merely perform a similar audio-processing function.
BD37522FS-E2 - 2-Band I2C Audio Processor | ROHM
ROHM BD37522FS-E2 is an analog sound processor with a built-in 2-band equalizer, a 7 V to 9.5 V supply range, I2C control, three audio input selectors, and independent volume and fader control for four channels. The device is offered in a 24-pin SSOP-A package for car-audio and related multi-source audio systems. An audio sound processor is an analog signal-conditioning IC placed between audio sources and an amplifier or speaker system. It manages source selection, gain, volume, fader level, tone, and loudness functions. Within the broader semiconductor hierarchy, the BD37522FS-E2 belongs to the audio processor category and ultimately to integrated audio signal-processing circuitry for automotive infotainment and compact consumer audio equipment. The integrated 2-band equalizer adjusts bass and treble without external equalization components. Three input selectors allow multiple source signals to be routed through one processing chain. Four-channel independent volume and fader control supports balanced multi-zone audio distribution, while main volume, input-gain, and loudness functions provide additional system-level control. The I2C interface enables a host controller to configure the sound processor instead of relying entirely on mechanical controls. The target part operates from 7 V to 9.5 V, making it suitable for systems using an automotive-like low-voltage supply rail. Its analog audio processing architecture consolidates functions that would otherwise require multiple external ICs or discrete networks. Integration reduces the number of signal-path components, but it does not increase the output power available to speakers; a suitable audio amplifier remains required after the signal-processing stage. Typical uses include car-audio head units, multi-zone vehicle cabin audio, radio navigation systems, portable audio products, and other installations that need independent level control for several listening areas. The internal equalizer is particularly useful where board space is constrained or tonal adjustment must be available through a digital control system. For layout, place the device close to the audio input and output routing components, and follow the manufacturer pin-description table when assigning tracks. Keep analog signal paths away from switching nodes and high-current return paths. Confirm decoupling requirements, supported control addresses, and the applicable interface timing in the manufacturer datasheet before finalizing the PCB. This product summary consolidates the manufacturer product information, functional architecture, sourcing guidance, and practical integration considerations for engineers evaluating the BD37522FS-E2 in analog multi-source audio systems.
BD37524FS-E2 - 3-Band Equalizer Audio Processor | ROHM
ROHM Semiconductor BD37524FS-E2 is a car-audio sound processor with a built-in three-band equalizer, five-channel stereo input selector, and I2C control interface. It operates from a 7.0 V to 9.5 V power supply, accepts control signals through a 3.3 V or 5 V I2C bus, and is packaged in a 24-SSOP-A package. Typical no-signal circuit current is 38 mA, making it intended for vehicle audio systems with a stable 12 V-derived supply. A sound processor is an audio signal-chain IC that applies level, tonal, and channel-control functions before power amplification. The BD37524FS-E2 combines source selection, input gain, main volume, loudness compensation, five-channel fader control, subwoofer filtering, and level metering in one device. Its internal equalizer supports bass, midrange, and treble adjustment, reducing the need for external tone-control components and simplifying the control software used by car-audio systems. The key acoustic performance specifications include total harmonic distortion of 0.001% for the front and rear channels and 0.002% for the subwoofer output. Typical input-to-output crosstalk between selectors is -100 dB, while the maximum input is 2.3 Vrms. These figures suit head-unit and signal-path designs where low distortion, low channel leakage, and consistent source switching are important. The parametric equalizer can also be adjusted without external passive components. Internally, the device uses an advanced switching circuit intended to reduce switching noise while changing sources or control states. The five-channel input selector accepts stereo sources and distributes the selected audio to the relevant output paths. A low-pass filter supports subwoofer output, and a level-meter output provides a control signal for monitoring or system management. The I2C interface allows a host controller to configure source selection, gain, volume, equalizer, loudness, fader, and related functions. Typical applications include car-audio head units, automotive multimedia systems, source-selection units, and aftermarket sound controllers. The integrated three-band equalizer is particularly useful where the enclosure, speaker positions, or cabin acoustics require tonal adjustment. The dedicated subwoofer low-pass path can simplify crossover implementation when the processor sits ahead of the external power amplifiers. When designing the power and signal path, maintain the specified 7.0 V to 9.5 V operating range and use the pin-description and application-circuit tables in the ROHM datasheet for decoupling, I2C pull-up, and output connections. Because the BD37524FS-E2 is an audio processor rather than a power amplifier, its outputs still require appropriately rated external amplifier stages to drive speakers. This product page combines the manufacturer’s feature description, electrical characteristics, package information, ordering guidance, and drop-in compatibility assessment. It also organizes the component by function so engineers can evaluate the processor for automotive audio, source switching, tone control, subwoofer filtering, and consumer-audio signal-chain applications.
BD37534FV-E2 3-Band Audio Equalizer | ROHM Semiconductor
The ROHM Semiconductor BD37534FV-E2 is a two-channel sound processor with a built-in three-band equalizer, supplied in a 28-SSOP-B surface-mount package. It is designed for car-audio signal processing and operates from a 7 V to 9.5 V supply. The device provides input selection, input-gain control, main volume, loudness, a five-channel fader volume function, a low-pass filter for subwoofer processing, and mixing input support. A sound processor is an audio signal-conditioning integrated circuit that adjusts amplitude and frequency-domain characteristics between audio sources and an amplifier or speaker system. The BD37534FV family belongs to the broader analog audio-processing category, combining source switching, volume management, tone shaping, loudness compensation, and subwoofer filtering in one integrated circuit. Its integrated three-band equalizer allows bass, middle, and treble adjustment without external equalizer components, helping reduce board size in compact audio systems. The equalizer divides the audio signal into bass, middle, and treble regions for tone adjustment. The manufacturer identifies the BD37534FV family as supporting common control software, which can simplify system integration when the same software ecosystem is used across related products. The built-in subwoofer path includes low-pass filtering and mixing functionality, making the device relevant to automotive head units, in-dash audio systems, compact stereo systems, and other multi-zone audio products. The BD37534FV-E2 uses an I2C control interface and is identified as an automotive-grade, two-channel audio tone processor. Its operating-temperature range is -40°C to 85°C, while its supply-voltage range is 7 V to 9.5 V. The 28-SSOP-B package is a surface-mount format measuring 0.220 inches, or 5.60 mm, in width according to the distributor specification record. The part is presented by the manufacturer as a car-audio sound processor rather than as a power amplifier, so its signal-processing function should not be confused with output-stage power capability. When designing around this device, the power supply, I2C control lines, analog input routing, and output connections should be planned together. Decoupling should follow the connection recommendations in the manufacturer datasheet, and the analog signal path should be kept away from noisy switching or high-current power circuitry. The equalizer and volume functions are especially useful where a compact panel requires integrated bass, middle, treble, loudness, and subwoofer control without a separate network of external active filters. This page combines the manufacturer product description, distributor specifications, package information, operating limits, and application-oriented guidance. It also identifies the verified drop-in alternative that can be evaluated without changing the PCB footprint and highlights which detailed electrical and pin-level characteristics still require confirmation from the manufacturer datasheet before a production release.
BD37541FS-E2 - 3-Band Audio Processor | ROHM Semiconductor
ROHM Semiconductor BD37541FS-E2 is an analog car-audio sound processor with a built-in three-band equalizer, five-channel mixing capability, I2C control, and a 32-SSOP-A package. Its supported supply range is 7 V to 9.5 V, making it suited to conventional automotive audio systems operating from a 12 V battery through an appropriate regulator. A sound processor is an analog audio integrated circuit that accepts multiple audio inputs and provides input selection, gain control, volume control, tone shaping, mixing, and fader functions before the signal reaches an audio power amplifier. Within the broader electronics hierarchy, the BD37541FS-E2 belongs to the sound-processor family, then to analog audio-processing ICs, audio signal-chain ICs, and ultimately semiconductor devices. The principal system feature is the integrated three-band equalizer. ROHM describes parametric equalization that can be adjusted without external equalization components. Separate bass, midrange, and treble controls give a vehicle audio designer a practical way to shape the tonal balance of radio, CD, auxiliary, or other line-level sources. The built-in subwoofer output also reduces the external circuitry needed to develop a compact multi-channel car-audio system. Beyond equalization, the device includes a stereo input selector with single-ended and ground-isolated input capability, input-gain control, main volume, loudness, five-channel fader volume, and mixing input. The BD37541FS-E2 uses I2C control, which allows a host controller to adjust the selected audio-processing functions and reduces the number of external mechanical controls required in a finished audio system. Typical applications include factory-fit car head units, automotive infotainment systems, compact multimedia systems, auxiliary-input modules, and powered speaker systems requiring centralized source selection and tone shaping. Because this device performs analog volume, gain, and equalization functions rather than generating high-power speaker drive, it should be paired with one or more external audio power amplifiers sized for the speaker impedance and required output power. When designing a circuit around the BD37541FS-E2, preserve adequate analog grounding, route audio traces away from switching nodes and high-current power paths, and decouple the supply close to the device. Confirm the pin assignments and application circuit in the manufacturer datasheet before assigning traces because the public product result does not expose a complete verified pin description table. This page combines the exact manufacturer and distributor facts for BD37541FS-E2 with practical guidance on equalization, signal-chain placement, I2C control, PCB layout, and drop-in replacement qualification. It also distinguishes documented functions from parameters that require confirmation from the manufacturer datasheet before a new design is released.
BD37542FS-E2 - 3-Band Audio Tone Processor | ROHM
The ROHM Semiconductor BD37542FS-E2 is a three-channel audio tone processor with a built-in three-band equalizer, I2C control, and support for bass, midrange, and treble adjustment. Designed for compact audio systems, it operates from a 7 V to 9.5 V supply and is offered in a 32-pin SSOP-A package. Its equalization functions do not require external equalizer components. An audio tone processor is a functional block within the broader audio-signal-chain hierarchy. It receives one or more analog audio channels, applies adjustable frequency-dependent gain, and provides shaped outputs for loudspeakers, amplifiers, or downstream audio devices. In the ROHM BD37542FS series, the integrated bass, mid, and treble equalizer supports repeatable tone adjustment with fewer external components and less circuit-board area than a conventional passive or active equalizer. The principal features include a built-in three-band equalizer, three-channel processing, I2C bus control, parametric tone adjustment without external components, and a dedicated subwoofer output function. The common control software identified by ROHM supports the BD37542FS family and is intended to improve development efficiency across related audio-system designs. The three-channel structure permits independent processing of multiple audio paths when the associated circuit configuration is designed for that use. The BD37542FS-E2 belongs to the SSOP-A surface-mount package family, which supports compact consumer-audio hardware. Its 32-pin interface provides the connections required for power, analog signal paths, equalizer functions, and digital control. Because the exact pin assignments are not stated on the product-page listing, board designers should use the pin-description table in the manufacturer datasheet when assigning tracks, especially for I2C communication and the subwoofer output. Typical applications include compact stereo and multimedia audio products, amplified speakers, karaoke equipment, home-audio systems, and sound-processing modules where user-adjustable bass, midrange, and treble are valuable. The integrated equalizer can shorten analog filter design time, while the subwoofer output supports space-saving system architectures without adding a separate equalizer stage. When laying out a design, treat the I2C interface and analog audio paths as separate functional areas to minimize digital coupling into sensitive signals. Confirm the supported supply range, external component requirements, control-register implementation, and output-loading conditions in the manufacturer datasheet before releasing production hardware. This page organizes the verified product identity, package information, functional features, application guidance, design cautions, and sourcing questions for BD37542FS-E2. It also distinguishes documented capabilities from details that require direct verification against the ROHM datasheet, helping engineers plan sourcing, schematic design, and PCB implementation more efficiently.
BD3808FS-E2 Audio Processor IC | ROHM Semiconductor
ROHM Semiconductor BD3808FS-E2 is an audio-special-purpose integrated circuit classified by DigiKey as an Audio Channel device and by other distributor listings as an audio processor. The supplied product information identifies a 22SOP package and associates the device with medium-power linear and switching applications. These verified facts place the BD3808FS-E2 in the broader category of audio processing ICs, where dedicated circuitry manages audio signal paths or associated control functions within consumer and industrial audio equipment. An audio processor is a specialized application-specific semiconductor. Unlike a general-purpose logic IC, it is designed around audio-channel requirements, including signal handling, channel control, or functions used to implement an audio system. The BD3808FS-E2 belongs to this audio-special-purpose IC hierarchy, which sits within integrated circuits and ultimately within the semiconductor component category. Its 22SOP package provides the physical interface used to connect the device on a printed circuit board. The verified distributor records distinguish the exact BD3808FS-E2 ordering code from the broader BD3808FS family listing. DigiKey identifies BD3808FS-E2 as an Audio Channel part, while marketplace records describe it as an IC audio processor in a 22SOP package. A distributor description also associates it with medium-power linear and switching applications. These classifications suggest that engineers should review the manufacturer datasheet for the exact channel architecture, electrical limits, external component requirements, and supported signal topology before releasing a production design. From a sourcing perspective, the BD3808FS-E2 is listed across DigiKey, Octopart, and multiple distributor or catalog channels. The verified search results report availability or comparison coverage, but they do not provide numeric pricing, stock quantities, operating-temperature limits, supply-voltage limits, output-current ratings, gain, distortion, frequency response, pin assignments, or package dimensions. Consequently, those electrical and mechanical parameters cannot be safely inferred from distributor category labels and must be confirmed in the manufacturer documentation. Typical design investigation for this device would focus on medium-power audio systems, signal routing, channel management, and mixed linear or switching signal-chain implementations. Whether it is suitable for a particular headphone, speaker, receiver, or auxiliary audio board depends on its documented supply range, channel count, control interface, and electrical performance. Engineers should also verify footprint compatibility, exposed or non-exposed pad details, pin multiplexing, and recommended application circuitry rather than relying only on the 22SOP package name. The main purchasing risk is incomplete verification: the supplied data does not establish lifecycle status, automotive qualification, RoHS or REACH declarations, exact package drawing, or a manufacturer-hosted datasheet URL. Samples and lot traceability should therefore be obtained before substitution. This page distinguishes verified distributor facts from unknown technical fields and avoids presenting estimated electrical ratings as if they were manufacturer specifications. This page adds engineering-focused value by mapping the verified 22SOP package and audio-processor classification to likely design checks, documenting all available source links, and identifying the exact data still required for footprint validation, schematic review, sourcing, and production release. It also explains why an apparently similar BD3808FS order code should not be assumed to be a drop-in alternative without package and pin-level verification.
BD3809FS - Audio Channel Processor | ROHM Semiconductor
ROHM Semiconductor BD3809FS is an audio-channel integrated circuit identified by distributor records as an audio processor in a 22SOP package. The available catalog information describes the device for medium-power linear and switching applications, while the primary distributor listing classifies it under Audio Special Purpose and Audio Channel. These verified identifiers establish the component family and form factor, but the supplied source excerpts do not include a complete manufacturer datasheet parameter table. An audio-channel processor is an application-specific integrated circuit used to process, control, or route audio signals within an audio subsystem. It belongs to the broader hierarchy of audio ICs, analog and mixed-signal semiconductors, and signal-processing integrated circuits. Compared with a general-purpose operational amplifier, an application-specific audio processor may incorporate multiple functions, but the exact internal blocks and signal paths of BD3809FS cannot be confirmed from the supplied excerpts. The verified package identifier is 22SOP. That package provides 22 physical lead positions, but the supplied data does not include a pinout, pin names, exposed-pad information, dimensions, or pin-to-pin replacement cross-reference. The catalogs also identify BD3809FS-E2 as an ordering designation associated with the same device family. Its electrical details, marking code, temperature range, and ordering-code differences require confirmation from the manufacturer datasheet. BD3809FS is associated with audio-channel applications and medium-power linear and switching application descriptions. These descriptions make it relevant to audio equipment, signal-conditioning circuits, and communication equipment where an audio-channel IC is required. However, verified operating voltage, input and output signal range, channel bandwidth, gain, distortion, channel count, control interface, and output-drive specifications are not included in the supplied source data and should not be inferred from the product type alone. Because the available evidence is distributor-oriented rather than a complete technical datasheet, engineers should verify pin functions, supply requirements, timing, absolute maximum ratings, decoupling recommendations, and application circuitry before committing to a design. A replacement should be selected only after confirming the exact 22SOP footprint, pin assignment, control protocol, electrical limits, and signal performance. This page consolidates the verified BD3809FS identity, package, category, distributor availability references, replacement-search evidence, and engineering-selection cautions. It separates confirmed catalog facts from unavailable technical parameters and provides a practical verification path for schematic capture, PCB layout, sourcing, and component-risk review.
BD3811K1 - 6-Channel 5.1ch Sound Processor | ROHM
The ROHM BD3811K1 is a 6-channel 5.1ch sound processor with integrated mode selection, input selection, 6-channel volume control, gain amplification, bass, treble, and bass boost functions. The device is supplied in an 80-QFP package measuring 20 mm by 14 mm and is designed for home-theater and multichannel audio systems. A sound processor is a dedicated audio-system IC that controls routing, level, tone, and channel-mixing functions before signals reach power amplifiers and loudspeakers. The BD3811K1 belongs to the broader hierarchy of audio special-purpose ICs, audio signal processors, analog and mixed-signal semiconductors, and integrated circuits. Its 5.1ch orientation means that one front-left, front-right, center, surround-left, surround-right, and subwoofer channel can be managed from a dedicated processor. The verified manufacturer datasheet identifies the BD3811K1 and BD3818KS as 5.1ch sound processors with built-in mode and input selectors. For BD3811K1, the integrated functions include 6-channel volume, gain amplifier, bass, treble, mixing through the family architecture, and bass boost. These functions reduce the number of separate analog controls required in a home-theater receiver or powered-speaker system. The available operating-supply indication is 10 V to 14.6 V, supporting conventional internal analog rails found in multichannel audio equipment. The BD3811K1 is identified by distributors as an audio tone processor in the 80-QFP (20 x 14 mm) package. Its pinout, exact control-voltage ranges, signal-frequency limits, total harmonic distortion, noise specifications, and recommended external-component values are not included in the supplied verified dataset. Those values must be taken directly from the manufacturer datasheet before signal-path or thermal calculations are approved. Typical uses include home-theater preamplifiers, 5.1ch surround-sound receivers, powered multimedia speakers, and analog multichannel source systems. The integrated bass, treble, volume, gain, and bass-boost blocks are particularly useful where a shared system-level tone controller is preferable to discrete analog networks. The input and mode selectors can also simplify source routing, although the exact supported modes and input count require confirmation from the datasheet. When designing around the BD3811K1, treat the audio paths, control inputs, supply rails, and ground returns as an analog system rather than as generic digital logic. Keep input and output routing away from switching supplies and high-current amplifier outputs, provide local supply bypassing according to the manufacturer application circuit, and verify the PCB footprint against the 80-QFP drawing before release. This page consolidates the verified distributor listings, manufacturer-hosted PDF, package information, supply-voltage indication, pricing signal, and practical selection guidance for BD3811K1. It also distinguishes confirmed data from parameters that still require verification from the official datasheet, reducing the risk of designing from an incomplete substitute listing.
BD3812F-E2 - 2-Channel Audio Volume Controller | ROHM
The ROHM Semiconductor BD3812F-E2 is a 2-channel electronic audio volume controller with 1.2 uVrms residual noise, a 131 dB dynamic range under the IHF-A weighting condition, and independent channel attenuation from 0 dB to -103 dB. The device also provides MUTE operation in 1 dB steps and uses two-line serial control. It is supplied in a 14-pin SOIC package. An electronic volume controller is an audio signal processor that adjusts the level of one or more audio channels through a control interface rather than a mechanical potentiometer. In the product hierarchy, it belongs to the broader class of audio special-purpose ICs, which sit between analog signal-generation blocks and power amplifiers. The BD3812F-E2 is designed to preserve audio signal quality while providing repeatable, software-controlled attenuation for multi-channel audio systems. The BD3812F-E2 supports independent control of two channels over a 103 dB attenuation range. Its mute function changes the level in 1 dB steps, making it suitable for product designs that need fine attenuation control, channel balancing, or user-selected volume settings. When combined with any of the BD3811K1, BD3813KS, BD3814FV, or BD3815KS family members, as specified by ROHM, the common bus supports up to eight channels. The common-bus architecture can also control as many as four chips at the same time. The maximum output voltage is 4.2 Vrms under the stated conditions of VCC = 7 V, VEE = -7 V, and RL = 10 kOhm. This output capability, combined with a residual-noise specification of 1.2 uVrms, supports low-noise audio signal paths. The two-line serial control reduces the number of control connections required compared with a parallel volume-control arrangement, which can also simplify PCB routing and microcontroller interface design. Typical uses include television and monitor audio channels, home-audio systems, active speakers, audio mixers, and multi-zone entertainment equipment. The device is particularly useful where independent left and right attenuation, common-bus expansion, mute control, or precise software-defined volume adjustment is required. Because its operating supply range is specified as 5 V to 7.3 V, the surrounding circuit must provide compatible positive and negative analog rails where the application requires the stated 4.2 Vrms output capability. Designers should preserve the datasheet-specified bypass and output-load conditions when evaluating signal integrity. The 10 kOhm load used for the stated maximum-output condition is relevant to downstream amplifier planning, and any external coupling or amplifier input must not load the output beyond the supported operating conditions. Decoupling should be placed close to the supply pins, and the common-bus wiring of multiple devices should be kept short to minimize coupling between channels. This product data combines the verified ROHM feature description with distributor packaging information, practical multi-channel application guidance, and explicit data-gap markers. It distinguishes verified numeric performance from unreported specifications and does not infer a pin assignment, temperature range, or drop-in substitute that the supplied sources do not confirm.
BD3814FV-E2 - 6-Channel Audio Processor | ROHM
ROHM BD3814FV-E2 is a six-channel electronic-volume audio processor designed for bass and treble tone-control functions in audio systems. It operates from a 10 V to 14.6 V supply range, supports a 2-wire control interface, and is packaged in a 40-terminal SSOP-B. ROHM identifies the BD3814FV family as a Last Time Buy product following a discontinuation announcement, so engineers should include lifecycle risk in new-design decisions. An audio processor is an analog signal-conditioning integrated circuit that controls, attenuates, or shapes audio signals between source and amplifier stages. In the broader product hierarchy, the BD3814FV-E2 belongs to audio processors, analog audio control ICs, and integrated circuits for consumer and professional audio equipment. Its electronic-volume function can provide centralized level and tone adjustment without requiring a separate potentiometer or mechanically operated control for every audio channel. The device is identified as a six-channel electronic-volume processor with bass and treble control. These functions are relevant in multi-zone audio systems where different speaker groups require independent attenuation or tonal compensation. The 40-SSOP-B package provides a relatively high pin count for an analog control IC, supporting multiple signal and control connections while remaining compatible with conventional surface-mount PCB assembly. The BD3814FV-E2 uses a 2-wire interface for tone-control functions. This interface-oriented approach is appropriate for systems where several control parameters are handled through a shared control link rather than a large number of discrete analog inputs. System integrators should confirm the exact control protocol, logic levels, timing, and supported commands against the manufacturer datasheet before finalizing firmware or host-controller communication. Typical applications include multichannel amplifier boards, active speaker crossover networks, car-audio tone controllers, home-theater preamplifiers, compact stereo systems, and commercial audio distribution equipment. In a multi-zone amplifier, the processor can be positioned in the signal path ahead of power amplifiers so bass and treble adjustments are handled consistently across the available channels. Its six-channel architecture is especially useful where several speaker zones need coordinated volume and tone control. Because the BD3814FV-E2 family has entered Last Time Buy status, engineers should review the manufacturer product page for lifecycle notices, ordering information, and any applicable change notifications. A robust design should also reserve the footprint for a qualified alternate only after its pinout, control interface, electrical limits, and acoustic behavior have been compared with the original device. This page combines the confirmed product identity, lifecycle information, package details, application context, engineering guidance, and sourcing considerations for the BD3814FV-E2. It is intended to help designers assess whether the device’s six-channel electronic-volume architecture and 2-wire tone-control interface fit a new or existing audio-control board while accounting for its discontinued-family status.
BD3823FV-E2 5-Channel Audio Processor | ROHM Semiconductor
The ROHM Semiconductor BD3823FV-E2 is a 5-channel audio signal processor with a 3.2 uVrms low-noise specification, 0.0015% low distortion, and a 20-pin SSOP-B surface-mount package. It operates from 7 V to 14.5 V and supports NTSC and PAL audio systems. The device combines channel selection with a resistor-ladder volume function for multichannel audio recording equipment. An audio signal processor is an interface IC that conditions, selects, and controls multiple audio paths within an entertainment system. Its place in the product hierarchy is audio signal processor, interface IC, audio subsystem, and electronic control component. The BD3823FV-E2 is intended specifically for DVD recorders and related consumer-video equipment where several standard audio channels must be routed while keeping the reproduced signal quiet and acoustically transparent. The primary features include five-channel selection, low output noise of 3.2 uVrms, and low distortion of 0.0015%. Its 7 V to 14.5 V operating range accommodates the supply voltages commonly found in multi-rail consumer-electronics equipment, while its -40°C to +85°C operating-temperature range supports industrial temperature conditions. An I2C interface permits a host controller to configure the processor rather than relying exclusively on mechanical switches. The 20-pin SSOP-B package uses surface-mount technology and provides a compact implementation for audio-processing functions. Because the package has closely spaced leads, assembly processes should be qualified for the specified lead pitch and soldering profile. The device integrates multiple signal-processing functions instead of requiring a separate selector and volume-control arrangement, reducing the number of discrete signal-path components in a DVD recorder. Typical uses include DVD recorder audio routing, NTSC and PAL video-system audio interfaces, multichannel consumer-audio selection, and embedded audio-control subsystems. The processor can serve as the central interface between audio sources, amplifier or codec stages, and the recorder's system controller. Its low-noise and low-distortion characteristics are especially relevant where preserving the original recording signal is more important than simply switching channels. Design the power rails so that the 7 V to 14.5 V operating range is maintained under load, and place the device's decoupling capacitors close to the supply and ground connections. Confirm the board footprint and pin orientation against the ROHM Semiconductor datasheet before layout release. PCB review should also check signal return paths, ground continuity, and keepouts around the SSOP-B leads. This page combines the ROHM Semiconductor device description, package and operating characteristics, sourcing guidance, and practical design considerations into a focused engineering reference. It also distinguishes documented functions from parameters that require confirmation in the manufacturer datasheet, helping engineers evaluate the BD3823FV-E2 before committing a board design to this specialized audio interface.
BD3825FS-E2 - 2-Channel Audio Switch | ROHM Semiconductor
The ROHM Semiconductor BD3825FS-E2 is a two-channel audio switch IC intended for DVD recorder audio I/O routing. It is identified as a 24-pin SSOP-A device with a 0.8 mm multi-lead package and 5.40 mm overall width. The device is designed to route multiple audio input lines according to commands from a video-signal LSI or a microcontroller. The BD3825FS-E2 belongs to the audio switch and audio interface IC category. An audio switch IC is a signal-routing semiconductor that connects, disconnects, or selects audio paths within an electronic system. This type of interface IC sits between audio sources, amplifiers, recorders, and system control logic. It is different from an audio amplifier, which increases signal power, because the BD3825FS-E2 primarily controls signal selection and routing. ROHM identifies the BD3825FS as a device for PAL DVD recorders. The related application information states that the switch and frequency-synthesis outputs are controlled by the BD3825FS, while the device is controlled through the I2C bus of the BH7624KS2 video-signal LSI. When used independently, pins 1, 2, 6, 7, 10, and 12 must be controlled by the microcontroller. This makes the part suitable for systems that need programmable selection of multiple audio input lines. The BD3825FS-E2 is packaged in a 24-SSOP-A configuration. Its compact surface-mount format supports dense consumer-electronics layouts while providing separate control and signal-routing connections. The -E2 ordering suffix identifies the exact ROHM catalog variant used in distributor listings. A 24-SOP listing identifies the body width as 0.213 inches, equivalent to 5.40 mm, with a 0.8 mm lead pitch. The switch is intended for DVD recorder audio interfaces and related multimedia equipment. In a typical implementation, a controller writes the required routing state to the BD3825FS, which then selects the appropriate audio path for recording, playback, or external input. The design must account for the device-specific control pins, pull-down requirements, signal levels, and the exact pin-assignment table in the manufacturer datasheet. This product page focuses on BD3825FS-E2 identification, package information, application fit, and practical selection considerations. It is intended to help engineers locate the correct datasheet, verify footprint compatibility, and determine whether the device matches the audio-routing architecture used in DVD recorder and related equipment.
BD3826FS-E2 - 3-Channel Audio Switch | ROHM Semiconductor
ROHM Semiconductor BD3826FS-E2 is a three-channel audio signal switch IC for DVD recorders, presented in a 32-SSOP-A surface-mount package. The device accepts a 2.5 V to 5.5 V supply range and provides analog signal routing for multi-channel audio systems. Its 32-pin package supports the control and signal connections required by a complex consumer-audio signal path. An audio switch IC is an interface component that routes left, right, and related analog audio channels between circuit sections. In the broader electronics hierarchy, it belongs to the audio interface IC class, connects to signal-path ICs such as amplifiers, codecs, and converters, and ultimately supports complete consumer-audio systems. Its primary role is channel selection rather than signal amplification or digital-to-analog conversion. The BD3826FS-E2 is identified as a three-channel switch with a 2.5 V to 5.5 V operating range. These characteristics make it suitable for low-voltage, multi-channel consumer equipment in which several analog sources must be selected and passed to downstream audio circuitry. The manufacturer identifies DVD-recorder signal switching as a principal application for the BD3826FS family. The 32-SSOP-A construction provides a practical surface-mount footprint for compact boards while exposing the control and analog-channel connections required by a three-channel device. Because this is an analog routing component, board-level implementation must account for source impedance, grounding, channel isolation, and the prevention of unwanted pop or noise. Stable supply decoupling and short signal traces are particularly important when the switch sits close to amplifiers or system ground references. Typical uses include DVD-recorder audio routing, stereo and multichannel entertainment equipment, analog source selection, and other consumer-audio products that require coordinated switching of multiple signals. The BD3826FS-E2 is most appropriate when the design uses a compatible three-channel routing architecture and can verify the complete pin assignments and control timing against the manufacturer datasheet before layout approval. Designers should verify the pin description table, control logic, recommended application circuit, and external-component requirements in the ROHM datasheet. If the original PCB has already been laid out for this device, preserve its footprint and verify signal levels against the downstream amplifier input range. A footprint-compatible replacement should not be assumed unless its pinout, control interface, supply range, and channel behavior have been checked directly. This product record combines the verified identity, package, channel count, supply range, application, and ordering information with structured design guidance for signal integrity, layout, and replacement assessment. It also distinguishes a true pin-compatible substitute from merely related audio-switching devices, helping engineers make a controlled sourcing decision without changing the board architecture.
BD3841FS-E2 - 9-Channel Stereo Input Selector | ROHM
The ROHM BD3841FS-E2 is a 9-channel stereo input selector and audio switch IC with a 2-wire serial control interface, supplied in a 32-SSOP-A package. It supports 6-channel or 9-channel stereo input arrangements, features low cross-talk between channels, and is designed for multi-room entertainment and multi-source recording systems. The device operates from 10 V to 14.6 V according to its distributor product information. An audio input selector is an analog signal-routing IC that chooses among multiple audio sources while preserving the selected channel’s signal integrity. In the broader component hierarchy, the BD3841FS-E2 belongs to analog switches and multiplexers, which are signal-path ICs used to route audio rather than amplify, digitize, or decode it. Its switching architecture allows several source and volume-control functions to share a serial control bus within a home-theater or multi-zone audio system. The principal features include support for 2-room entertainment and 2-source recording, simultaneous control of compatible six-channel volume LSIs, and expansion to 14 input channels by combining a BD3841FS with a BD3843FS. ROHM highlights excellent cross-talk characteristics produced by its original switching pattern. These characteristics are particularly relevant when adjacent channels carry different program sources and unintended source bleed would be audible. The BD3841FS-E2 supports 6-channel and 9-channel stereo input-selection configurations and uses a 2-wire control connection, reducing the number of serial lines required by the system controller. The manufacturer’s example-circuit guidance emphasizes validating external component values and circuit characteristics for the intended application, since external networks and connected circuitry can affect static and transient performance. Typical uses include multi-room home-entertainment receivers, multi-source recording equipment, stereo selector panels, and audio/video receiver input routing. It can also participate in a larger 14-channel arrangement alongside the BD3843FS and compatible BD3813KS, BD3815KS, BD3816K1, or BD3817KS volume-control devices controlled over the same serial bus. Designers should preserve the pin assignments and exposed pad requirements shown in the ROHM datasheet when laying out the 32-SSOP-A footprint. The audio path should be evaluated for insertion loss, off-channel isolation, crosstalk, and pop-noise behavior across every source combination that the product will present to users. This page organizes the confirmed operating information, package details, source-control architecture, application fit, and verified cross-reference context into an engineering-focused resource. It also identifies the specific electrical and pin-level details that should be confirmed in the manufacturer datasheet before a new layout or replacement design is released.
BD3843FS-E2 - 6-Channel Stereo Input Selector | ROHM
The ROHM BD3843FS-E2 is a 6-channel stereo input selector and audio function-switch IC built around two independently controlled output systems. According to the manufacturer datasheet, it accepts two 6-channel input groups, provides a 2-channel recording output and a 1-channel line output, and includes built-in buffer amplifiers. The device is offered in a 24-pin SSOP-A24 surface-mount package and uses a two-wire serial control bus compatible with 3.3 V and 5 V control systems. An audio function-switch IC is a specialized analog interface device that routes multiple audio sources within an audio system while preserving channel isolation and signal integrity. In the product hierarchy, the BD3843FS-E2 belongs to the broader family of analog audio processors, function switches, and interface ICs. Its internal routing architecture allows one input group to be selected for recording while another group feeds the line output, making it useful in multi-source entertainment equipment that must switch audio paths without continuous external relay noise. Key features include independent control of two output systems, support for simultaneous operation with six-channel and seven-channel volume LSIs, and the ability to build a 14-channel input arrangement by combining BD3843FS and BD3841FS devices. The manufacturer also highlights the original pattern layout for excellent cross-talk characteristics between channels. A built-in buffer amplifier reduces the need for additional output buffering in suitable line-level designs, while the serial interface simplifies connection to a system controller. The BD3843FS-E2 supports 2-room, 2-source entertainment and recording systems. It can be paired with the BD3813KS and BD3815KS six-channel volume LSIs, or with the BD3816K1 and BD3817KS seven-channel volume LSIs, through the shared serial control bus. This arrangement supports coordinated input selection and volume control in home-theater equipment, multi-room audio systems, car audio systems, and other stereo products with several local sources. Because the device performs analog routing and buffering rather than high-power amplification, it belongs near the line-level signal path and requires suitable source impedance, trace routing, grounding, and decoupling. The 3.3 V or 5 V serial-control compatibility permits integration with both legacy 5 V control logic and lower-voltage systems. Confirm the complete electrical limits and pin assignments in the manufacturer datasheet before finalizing a board design. This product page combines the manufacturer’s functional description with practical application guidance, interface relationships, sourcing routes, and a structured view of the BD3843FS-E2’s role in multi-source stereo equipment. It emphasizes design usage rather than repeating only catalog identifiers, helping engineers identify whether the selector architecture matches their channel-count, control-bus, recording-output, and line-output requirements.
BD3869AF-E2 2-Channel I2C Audio Processor | ROHM
ROHM Semiconductor BD3869AF-E2 is a two-channel audio signal processor designed for television audio systems and other consumer-audio applications. The device combines integrated audio processing with I2C control, supports as many as three channels simultaneously, and uses a Bi-CMOS process. It is packaged for surface-mount assembly in an 18-SOP package, with tape-and-reel packaging identified for the -E2 ordering code. An audio signal processor is an application-specific integrated circuit that adjusts or manages audio signals within a larger signal chain. Unlike a general-purpose codec, which primarily performs conversion between analog and digital representations, this device is designed around predefined audio-control functions. In the BD3869AF family, one prominent function is loudness adjustment linked to volume attenuation, allowing a television or similar system to coordinate perceived loudness with the selected volume level. The processor also provides I2C bus control for integration with a system controller. The BD3869AF-E2 supports a control-voltage range of 3.3 V to 5.5 V and allows a maximum of three channels to be used simultaneously. Its two-channel architecture makes it suitable for stereo television audio paths, while the multi-channel capability provides flexibility for systems that also need an additional processed channel. The -E2 variant is identified with surface-mount, tape-and-reel handling for automated production assembly. The Bi-CMOS implementation combines bipolar circuitry with CMOS circuitry in one monolithic integrated circuit. In the BD3869AF/BD3869AF-E2 family, this process supports the analog signal-processing functions required by the television audio processor while also enabling the digital control functions associated with its I2C interface. The manufacturer describes the BD3869AF and BD3869AF-E2 as an audio sound processor for TV systems, positioning the device within the broader hierarchy of consumer-audio ICs, audio signal processors, and application-specific semiconductors. Typical applications include television speaker-path control, stereo television audio processing, volume-attenuation coordination, and sound systems that require programmable audio behavior through an I2C bus. The processor can be paired with a television audio amplifier when a system requires an external power stage after low-level signal processing. It may also be used in other consumer-audio products that can reproduce the required signal functions and implement the corresponding control protocol. When designing around the BD3869AF-E2, confirm the complete pin assignment, analog signal levels, control registers, and external-component recommendations in the Rohm datasheet before finalizing the PCB. Pay particular attention to the 18-SOP footprint, the 3.3 V to 5.5 V control-voltage range, and the interface requirements of the host controller. Decoupling, grounding, and analog-versus-digital partitioning should follow the manufacturer’s reference layout to reduce noise coupling into the processed audio paths. This product record combines the verified device identity, package format, control interface, channel capability, process technology, and sourcing context with practical design guidance. It also distinguishes the exact BD3869AF-E2 orderable device from unsupported claims about other package variants and provides a clear basis for checking datasheets, pin assignments, lifecycle status, and replacement requirements.
BD3871FS-E2 - 2-Channel Audio Processor | ROHM
ROHM BD3871FS-E2 is a 2-channel bipolar CMOS sound processor with a 4.5 V to 9.5 V supply range in a 24-SSOP-A package. It integrates tone-shaping functions for stereo audio systems, including adjustable bass characteristics, surround-sound processing, and mute control for reducing crosstalk. A sound processor is an analog audio integrated circuit that modifies or controls audio signals between a source and an output stage. In the broader electronics hierarchy, it belongs to the audio signal-processing category, connects to audio codecs and interface ICs, and ultimately supports broader audio signal-chain and power-management systems. The BD3871FS-E2 is intended for compact stereo equipment where tone adjustment, channel control, and surround processing can be integrated without a separate digital signal processor. The bass section uses external components, allowing its center frequency and Q factor to be adjusted to match the speaker system and target acoustic response. This flexibility is useful in consumer audio products because a fixed internal filter may not provide adequate control across different cabinet sizes, driver impedances, or listening positions. The device also supports a surround function constructed without external components, reducing board area and component count where that processing mode is required. A mute function is assigned to one input pin, enabling channel suppression during switching or mode changes and helping reduce crosstalk between stereo paths. The bipolar CMOS process combines bipolar circuitry with CMOS logic and supports low current consumption for an energy-saving design. The 24-SSOP-A package provides a compact surface-mount format suitable for home-audio, automotive-audio, and portable-equipment signal boards. Typical uses include stereo tone-control boards, mini hi-fi amplifiers, television audio paths, compact stereo systems, and aftermarket speaker selectors. In a home-audio design, the processor can shape bass response ahead of a power amplifier while a mute input handles source changes. In automotive systems, its integrated surround function can add room-effect processing without requiring a separate surround decoder. The main design consideration is the external-component network around the bass filter. Component tolerances and the selected center frequency and Q factor directly influence tonal balance, so prototype the network against the intended loudspeaker load. Keep audio inputs and outputs away from switching supplies and high-current amplifier paths to preserve signal integrity. This product page combines manufacturer feature information, practical application guidance, package and interface details, and carefully qualified drop-in replacement information to support faster engineering evaluation and sourcing decisions.
BD3872FS-E2 - 2-Channel 3-Band Audio Signal Processor, SSOP-24 | ROHM Semiconductor
The ROHM Semiconductor BD3872FS-E2 is a two-channel bipolar-CMOS (BiCMOS) analog sound processor with built-in three-band equalizers, supplied in a 24-pin SSOP-A (PDSO24) surface-mount package on tape-and-reel. It operates from a 4.5 V to 9.5 V supply, making it directly compatible with the 5 V and 9 V rails typical of car audio head units, home theater preamplifiers and compact stereo amplifiers. An audio sound processor is a signal-conditioning IC placed between a source (tuner, DAC, cassette or optical deck) and a power amplifier. Its job is to shape the spectrum and level of the audio path rather than to amplify power. Within the product hierarchy, the BD3872FS-E2 sits as an analog audio processor, a sub-class of audio signal processor, itself part of the broader family of interface ICs and signal-conditioning semiconductors. Key features of the BD3872FS-E2 include a three-band equalizer per channel with bass characteristics tunable through external components, so center frequency and Q factor can be set by the board designer. A mute function is provided on one of the input pins to suppress cross-talk between channels, and a surround-sound function can be realized without external components. The BiCMOS process technology used in the device keeps current consumption low, which matters in battery-fed and vehicle-installed equipment where quiescent drain translates directly into standby current. Because the equalizer network is set by discrete external components, the same silicon can be re-tuned per product variant: a consumer home-theater set can be voiced for deep bass while a car amplifier line can be voiced for cabin acoustics. The built-in surround function allows a two-channel source to be expanded into a cinema-surround presentation without adding external matrix circuitry. Typical applications include car audio head-unit tone control, home theater and cinema surround processing, AV receiver channel equalization, active speaker and mini-system input conditioning, and portable consumer audio products. When laying out the board, keep the input and output routing short and place the equalizer resistors and capacitors close to their associated pins to minimize stray pickup of switching noise. Note that the E2 suffix denotes the tape-and-reel packing option with a standard reel quantity of 2,000 pieces.
BD3883FS-E2 - Audio Sound Controller | ROHM Semiconductor
The ROHM Semiconductor BD3883FS-E2 is an analog audio sound controller with built-in three-band equalization, front and rear volume processing, surround and rear-volume functions, and soft-switch volume transitions. It uses resistance-ladder volume and tone circuits, a two-stage front/rear volume architecture, and ROHM's BiCOMS process to provide low-noise, low-distortion audio control with low power consumption. The device is supplied in a 32-pin SOP surface-mount package. An audio sound controller is a specialized analog integrated circuit that sits between audio sources and power amplifiers. It provides signal-level functions such as volume, tone, balance, surround, and channel routing without performing the final power-amplification stage. The BD3883FS family belongs to the broader audio processor hierarchy: analog sound controller, audio signal-processing IC, interface IC, and semiconductor. Key features include high signal-to-noise performance obtained through a two-stage configuration for front volume and rear volume. It provides surround and rear volume with soft switching to reduce shock noise during transitions. Volume and tone are implemented with resistance-ladder circuitry for low noise and low distortion, while the BiCOMS process supports low-current operation and energy-saving designs. Technically, the part is intended to process multiple analog audio channels through external resistors and conventional signal-path components. Its resistance-ladder implementation provides discrete attenuation paths rather than relying on an active gain-control mechanism. The two-stage volume arrangement separates level-control functions into cascaded stages, helping the manufacturer achieve a high signal-to-noise ratio while supporting front, rear, and surround-volume operation. Typical applications include home-audio systems, stereo receivers, mini hi-fi systems, television audio paths, powered speakers, and other equipment requiring tone and multi-channel volume control. The soft-switch behavior is especially useful when changing listening modes because it helps avoid audible transients. Integration can reduce the number of separate attenuator networks while retaining direct control of several audio-volume functions. A key design consideration is the analog signal path. Board layout should keep input and output audio traces short, maintain grounding continuity, and place any bypass or filter components close to their associated pins. Before schematic capture, engineers should consult the manufacturer datasheet for the complete pin map, supported supply voltage, channel arrangement, external resistance values, and recommended application circuit. This page consolidates verified ROHM product information, current distributor pricing, package details, application guidance, and verified replacement analysis. It also clearly identifies where package-specific pin data or confirmed drop-in alternatives are unavailable, helping engineers distinguish sourced facts from parts that still require circuit-level validation.
BD3884FS-E2 2-Channel Audio Processor | ROHM
The ROHM Semiconductor BD3884FS-E2 is a two-channel audio signal processor for television sound systems, packaged in a 24-pin SSOP surface-mount package. Its headline features include separate processing for two audio channels, integrated automatic gain control for balancing differences among input sources, and a compact 24-SSOP footprint suitable for space-constrained television and consumer-electronics designs. The device is identified as a tone-control circuit in component listings. An audio signal processor is a specialized analog integrated circuit that conditions audio signals before they reach amplifiers, speakers, or downstream digital converters. Within the product hierarchy, the BD3884FS-E2 is an audio signal processor, an audio special-purpose IC, and a semiconductor. Its two-channel organization permits paired stereo signals to be processed consistently while reducing the component count compared with separate single-channel circuits. The manufacturer datasheet identifies a built-in AGC circuit that adjusts the sound difference among input sources. This function is useful when signals arrive at substantially different levels because the processor can help reduce level imbalance before downstream amplification. The BD3884FS-E2 also appears in distributor classifications as a TV audio amplifier or sound processor, identifying television audio conditioning as its principal application area. The BD3884FS-E2 combines tone control with two-channel audio processing in one monolithic integrated circuit. Its surface-mount SSOP-24 construction supports automated PCB assembly while requiring less board area than a larger through-hole package. Because audio behavior depends on external resistors, capacitors, source impedance, and the surrounding signal path, designers should reproduce the manufacturer application circuit and verify channel balance, gain behavior, distortion, and stability in the finished television design. Typical implementations include stereo television speaker systems, television main-audio processing, audio source switching and level balancing, and consumer electronics requiring a dedicated tone-control stage. The integrated AGC can be particularly valuable when multiple source paths produce inconsistent volume levels. For battery-powered portable products, power consumption must also be checked because analog signal processors commonly remain active whenever the television audio subsystem is enabled. A key design consideration is that the device does not replace the final power amplifier. Place it before the audio output amplifier and observe the signal levels, impedance, and grounding arrangement specified in the manufacturer datasheet. PCB layout should keep audio traces away from switching nodes and high-current return paths, while stable decoupling and grounded return paths help preserve low-level audio fidelity. This product page consolidates the exact device identity, package information, sourcing details, functional attributes, and engineering guidance for the BD3884FS-E2. It also distinguishes documented capabilities from parameters that require confirmation in the manufacturer datasheet, helping engineers evaluate the part efficiently before beginning a television audio-board design.
BSP75-E6433 - Smart Low-Side Power Switch | Infineon
The Infineon BSP75-E6433 is a logic-level smart low-side power switch intended for 12 V, 24 V, and 42 V direct-current applications. The verified source identifies the device as a μC-compatible peripheral driver and buffer/inverter. Its verified operating-class description covers low-side DC power switching, while its logic-level input permits control from a microcontroller. The exact package designation, pin count, current ratings, on-resistance, and thermal limits were not supplied in the verified data and therefore require confirmation from the manufacturer datasheet before design release. A smart low-side power switch is an intelligent semiconductor interface between a low-voltage controller and a higher-current load placed on the ground return side of a circuit. Its power transistor handles the load current, while integrated control, diagnostic, input-protection, or thermal functions reduce the amount of external circuitry required. Within the broader hierarchy, this device is a peripheral driver or buffer/inverter, a discrete interface function, and a power-management building block rather than a general-purpose logic gate. The BSP75-E6433 is particularly relevant for microcontroller-controlled relays, solenoids, lamps, motors, and other inductive loads connected to DC supplies. Its μC-compatible interface helps connect a digital controller to a power stage, while the cited 12 V, 24 V, and 42 V DC application range supports common industrial, automotive-style, and electromechanical environments. Load current must remain within the manufacturer’s limits because the verified results do not provide a numeric current rating. The available family documentation describes the BSP75 as a smart low-side power switch with logic-level input, input protection, ESD protection, and thermal shutdown with restart. However, because the supplied evidence does not explicitly map every family feature to the exact BSP75-E6433 ordering code, engineers should verify the exact feature list, pin functions, limits, and test conditions in the applicable Infineon datasheet. This distinction prevents assumptions about production behavior, especially for short-circuit diagnostics, overload response, and package thermal performance. Typical uses include distributed power distribution, solenoids, relay coils, indicator lamps, and small DC motor systems. In each circuit, the controller drives the input while the switch conducts current from the load toward ground. Inductive loads usually require a flyback path, but the required diode arrangement, current rating, and switching limits must be selected from verified device and application data rather than inferred solely from the product description. Before layout, confirm the exact package and pinout, then check load-current capability, voltage rating, on-resistance, thermal limits, input thresholds, and shutdown behavior. The verified search results identify datasheet and pinout resources but do not provide the underlying electrical tables. A component-level review should therefore use the official BSP75-E6433 documentation and confirm the supplier’s traceability and lot information. This page consolidates the verified distributor availability, pricing references, family functionality, sourcing links, and engineering gaps for BSP75-E6433. It also distinguishes documented facts from missing production specifications, helping designers move from a promising 12 V, 24 V, or 42 V DC peripheral-driver candidate to a controlled schematic and PCB release.
CD4051BE - 8:1 Analog Multiplexer, 240 Ohm, 16-PDIP | Texas Instruments
The Texas Instruments CD4051BE is a CMOS single 8-channel analog multiplexer or demultiplexer with logic-level conversion, housed in a 16-pin PDIP (N) package. The device features a typical on-state resistance of 125 Ohm at VDD-VEE = 15V, supports signal input ranges over 15 Vp-p at VDD-VEE = 18V, and operates across a wide supply range from 3 V to 20 V single supply or ±10V dual supply. A CMOS analog multiplexer is an analog switch that selects one of N analog input channels and routes it to a single common output line, under control of digital select inputs. Multiplexers belong to the broader category of analog switches and multiplexers, which in turn sit within interface ICs and signal-conditioning components. The CD405xB family from Texas Instruments (originally designed by RCA) provides low-leakage, low-crosstalk switching for precision analog and audio signal paths, with logic-level translation between 3 V digital control and ±10 V analog rails. Key features of the CD4051BE include matched switch characteristics with RON = 5 Ohm typical delta between channels at VDD-VEE = 15V, channel OFF leakage of ±100 pA typical at VDD-VEE = 18V, and very low quiescent power dissipation under all digital control input conditions. The device also offers low ON resistance of 125 Ohm typical, high OFF resistance, and logic-level translation enabling digital control from 3V CMOS logic while switching ±10V analog signals. The 16-pin PDIP through-hole package provides easy insertion into legacy breadboards and through-hole PCB designs. The CD4051BE uses a CMOS architecture with break-before-make switching action, preventing momentary shorting between adjacent channels during channel transitions. The three binary select inputs (A, B, C) along with an active-low inhibit input provide 8 -to-1 multiplexing, while the bidirectional common pin (COM) allows the same device to operate as a 1-to-8 demultiplexer by reversing the role of input and output. This architecture is well suited to low-frequency precision analog signal routing where switch capacitance and leakage, not bandwidth, dominate the error budget. Typical applications include analog signal routing in data acquisition systems, audio signal multiplexing in mixing consoles, sensor signal multiplexing in industrial instrumentation, automatic test equipment channel selection, and telecommunications line selection. The wide supply range allows direct interfacing to both 5V legacy analog systems and modern 3.3V digital controllers without level shifters. When designing with this device, ensure that VEE is connected to ground or negative supply for unipolar operation, and provide adequate decoupling close to VDD and VEE pins. The inhibit pin (INH) should be tied to ground when not used, and select inputs (A, B, C) should not float - tie them to VDD or VSS through a defined logic level to prevent shoot-through current. This page synthesizes distributor pricing, drop-in alternatives in the same 16-PDIP footprint, application-specific guidance for audio and sensor multiplexing, and design considerations not found in the manufacturer datasheet alone.
CD4052B - 20V 4:1 2-Channel Analog Multiplexer | TI
The Texas Instruments CD4052B is a 20 V, 4:1, 2-channel CMOS analog multiplexer and demultiplexer with logic-level conversion, supplied in the package identified by the selected ordering option. Its three control inputs select one of four common terminals, while an inhibit input can disable the selected analog path. The device supports both analog and digital signal routing and is positioned for systems that require multiple signals to share a limited number of input or output pins. An analog multiplexer is a switching IC that connects one of several analog terminals to a common terminal according to binary control logic. In the broader hierarchy, the CD4052B belongs to the CMOS analog-switch and multiplexer class, which sits within interface ICs and broader semiconductor signal-routing systems. Logic-level conversion allows the control inputs to operate from a separate supply domain from the analog signal path, subject to the manufacturer’s absolute-maximum and operating limits. The verified manufacturer description identifies the CD4052B as a 20 V, 4:1, 2-channel multiplexer with logic-level conversion. The verified distributor listing for CD4052BPWR identifies a 2-circuit, 4:1, 240 ohm, 16-TSSOP variant. The selected CD4052B MPN does not itself specify a package suffix, so package-specific physical details, pin names, pinout, and orderable packaging must be confirmed against the applicable TI datasheet ordering table. The CD4052B is useful for sensor selection, measurement-signal routing, audio or communications channel selection, and control systems where analog signals must be routed under digital control. Because it is a CMOS analog switch, designers should account for signal amplitude, leakage, on-resistance variation, control timing, supply levels, and the maximum analog voltage when selecting external circuitry. The inhibit input provides a way to isolate a selected path during reset or system states. The primary design trade-off is that the broad 20 V-capable signal range comes with analog-switch behavior rather than the performance of a modern low-voltage, low-resistance mux. Engineers should verify the exact datasheet limits, package drawing, truth table, and control-input levels before layout or replacement work. The manufacturer product page and datasheet should be treated as authoritative for all unreported values. This page combines the verified TI product description, distributor package information, cross-reference results, and practical routing guidance. It does not invent electrical values, pricing, pin assignments, compliance claims, or package dimensions that were not supplied in the verified data.