Interface ICs
Subcategories
Products (3,400+)
CS4222-DS - 20-Bit Stereo Audio Codec | Cirrus Logic
Cirrus Logic CS4222-DS is a 20-bit stereo audio codec with volume control, integrating analog-to-digital and digital-to-analog conversion in a 28-pin SSOP package. The device operates from a single +5 V supply and supports four-channel volume control according to the DigiKey product listing. Its delta-sigma conversion architecture, onboard output buffering, and differential line-level outputs make it suitable for multichannel consumer audio, sound-card, mixer, and digital-audio-interface equipment. An audio codec is an interface IC that converts analog sound into a digital bitstream and reconstructs digital audio into analog signals. In the broader semiconductor hierarchy, a codec belongs to interface ICs and audio codecs, combining mixed-signal converters with digital control and analog output circuitry. The CS4222 therefore provides both signal conversion and system-level volume management rather than operating only as a conventional digital interface controller. The CS4222 provides 20-bit stereo conversion and uses delta-sigma conversion techniques. Its on-chip buffer amplifier generates differential outputs capable of driving 10 kW loads, as stated in the CS4222 datasheet. Each output produces a nominal 2.83 Vpp, or 1 Vrms, signal for a full-scale digital input. The common-mode voltage is 2.3 V, and the two sides of each differential channel can represent a 5.66 Vpp, or 2 Vrms, differential signal. The single-supply architecture simplifies analog system design around a conventional +5 V rail. Digital control and analog conversion are consolidated in one IC, reducing the number of separate converters required in a stereo design. The integrated volume-control function can simplify control layout in systems that need programmable attenuation between digital sources and line-level outputs, although software control details and supported register values must be confirmed in the manufacturer datasheet before implementation. Typical uses include stereo sound cards, compact multimedia systems, powered speakers, home-audio preamplifiers, mixer inputs, USB or FireWire audio interfaces, and industrial monitoring equipment. The differential outputs are particularly useful when the downstream analog stage benefits from common-mode rejection and reduced susceptibility to ground-borne noise. Board-level filtering and grounding remain important because digital activity from the codec can couple into sensitive analog paths if the layout does not separate converter and output-current return paths. Designers should follow the recommended external component network shown in the Cirrus Logic CS4222 datasheet and preserve the differential output topology. Input and output decoupling should be placed close to the appropriate supply and signal pins, while analog and digital return currents should be routed carefully on mixed-signal boards. The 28-pin SSOP footprint is not interchangeable with leaded or differently pin-counted codecs without a PCB redesign. This product page consolidates verified distributor pricing, package information, converter performance, application guidance, and sourcing data. It also distinguishes verified CS4222-DS facts from parameters that still require confirmation, avoiding unsupported claims about equivalent codecs, exact pin functions, lifecycle guarantees, or unreported electrical limits.
CS4223-BS - 24-Bit 105dB Stereo Audio Codec | Cirrus Logic
The Cirrus Logic CS4223-BS is a 24-bit, 105 dB dynamic-range stereo audio codec with integrated analog-to-digital and digital-to-analog converters, operating from a single +5 V supply in a 28-pin SSOP package. The converter uses delta-sigma conversion techniques, and the CS4223-BS configuration is identified by distributor data as a stereo codec without volume control. An audio codec is an interface IC that converts analog sound signals into digital data and reconstructs digital audio into analog signals. A codec belongs to the broader interface IC and signal-conversion hierarchy, combining an ADC, DAC, digital audio interface, clocking, and associated analog support functions. This integration reduces the number of external converters required in CD players, DVD systems, automotive audio equipment, consumer electronics, and other stereo-audio systems. Key features include 24-bit audio resolution, a specified signal-to-noise ratio of 105 dB, stereo ADC and DAC channels, delta-sigma conversion, and single +5 V operation. The 105 dB rating provides a concrete measure of the converter noise floor relative to the full-scale signal, while 24-bit words provide sufficient numerical resolution for professional and consumer audio paths. The 28-pin SSOP surface-mount package supports compact, board-level implementations. The device accepts digital audio through its serial audio interface and uses external clocking and synchronization signals for deterministic conversion. Delta-sigma architectures reduce the need for high-precision conversion components inside the signal path, although board layout, grounding, supply decoupling, and clock signal integrity remain important. Analog and digital sections should be routed to minimize coupling from switching nodes and high-current return paths. Typical applications include stereo CD and DVD audio, home-theater equipment, automotive sound systems, digital mixing consoles, multimedia appliances, and other systems requiring simultaneous analog-to-digital and digital-to-analog conversion. The CS4223-BS is appropriate where a 24-bit stereo codec and 105 dB dynamic range are required from one +5 V supply. Because the verified listing identifies this -BS option as lacking volume control, systems requiring an internal volume-control function should verify that requirement before design-in. For a new PCB, place all decoupling capacitors close to their supply pins, use a low-inductance ground reference, and route clock and data traces away from analog inputs. The +5 V rail should be filtered if nearby switching converters create ripple or high-frequency noise. Legacy-product risk should also be evaluated because the available cross-reference data labels the CS4223 family as obsolete and recommends consulting manufacturer lifecycle information before committing to a production run.
CS4223-KS - 24-Bit 105dB Stereo Audio Codec | Cirrus Logic
Cirrus Logic CS4223-KS is a 24-bit, 105 dB stereo audio codec with integrated analog-to-digital and digital-to-analog converters, supplied in a 28-pin SSOP package. The device uses delta-sigma conversion, operates from a single +5 V power supply, and provides a 24-bit serial audio interface. It combines bidirectional stereo audio conversion in one package, reducing the number of separate converters required in a digital audio system. An audio codec is an interface integrated circuit that converts between analog audio signals and digital audio data. The CS4223 belongs to the broader codec hierarchy, which includes digital-to-analog converters, analog-to-digital converters, audio interface ICs, and signal-conversion semiconductors. In this device, stereo delta-sigma ADC and DAC sections share the same integrated package and serial digital audio connection. The primary verified performance features are 24-bit resolution, 105 dB dynamic range, stereo conversion, a 24-bit serial interface, operation from one +5 V supply, and low power consumption. These characteristics suit professional audio equipment, multichannel sound systems, consumer audio electronics, industrial monitoring, and embedded audio platforms where analog audio must be captured or reproduced using a digital signal path. The CS4223/4 family uses delta-sigma conversion techniques, allowing analog stereo signals and digital audio data to share a compact mixed-signal package. The CS4223-KS distributor description identifies this specific option as a 24-bit audio codec without volume control. That distinction is important because volume-control functionality must be verified in the manufacturer documentation before assuming equivalent behavior between CS4223 and CS4224 variants. Typical circuit roles include receiving digital audio data for conversion to stereo analog outputs and accepting stereo analog inputs for conversion to digital data. System designers must provide suitable input and output filtering, stable analog supply and ground distribution, correct serial-interface timing, and signal routing appropriate to the codec's application. The single +5 V supply simplifies rail planning, although analog and digital return-current paths still require careful PCB partitioning. Before layout, compare the exact CS4223-KS pinout and electrical limits against the selected schematic revision. The public search results identify the package as 28-pin SSOP, but they do not provide a complete verified pin table in the supplied data; no pin names are therefore inferred here. Likewise, sample rate, clock range, analog input and output range, and recommended external component values require confirmation in the manufacturer datasheet. This product page consolidates the verified distributor descriptions, manufacturer-family data, package information, and practical selection considerations for the CS4223-KS. It separates confirmed specifications from unavailable parameters and focuses comparison on genuine same-package family options rather than presenting unrelated codecs as drop-in replacements.
CS4223-KSR - 24-Bit 105dB Stereo Audio Codec | Cirrus Logic (Tape & Reel)
Cirrus Logic CS4223-KSR is a 24-bit, 105 dB stereo audio codec with integrated analog-to-digital and digital-to-analog converters, supplied in a 28-pin SSOP package. The device uses delta-sigma conversion, operates from a single +5 V power supply, and provides a 24-bit serial audio interface. It combines bidirectional stereo audio conversion in one package, reducing the number of separate converters required in a digital audio system. An audio codec is an interface integrated circuit that converts between analog audio signals and digital audio data. The CS4223 belongs to the broader codec hierarchy, which includes digital-to-analog converters, analog-to-digital converters, audio interface ICs, and signal-conversion semiconductors. In this device, stereo delta-sigma ADC and DAC sections share the same integrated package and serial digital audio connection. The primary verified performance features are 24-bit resolution, 105 dB dynamic range, stereo conversion, a 24-bit serial interface, operation from one +5 V supply, and low power consumption. These characteristics suit professional audio equipment, multichannel sound systems, consumer audio electronics, industrial monitoring, and embedded audio platforms where analog audio must be captured or reproduced using a digital signal path. The CS4223/4 family uses delta-sigma conversion techniques, allowing analog stereo signals and digital audio data to share a compact mixed-signal package. The CS4223-KSR distributor description identifies this specific option as a 24-bit audio codec without volume control. That distinction is important because volume-control functionality must be verified in the manufacturer documentation before assuming equivalent behavior between CS4223 and CS4224 variants. Typical circuit roles include receiving digital audio data for conversion to stereo analog outputs and accepting stereo analog inputs for conversion to digital data. System designers must provide suitable input and output filtering, stable analog supply and ground distribution, correct serial-interface timing, and signal routing appropriate to the codec's application. The single +5 V supply simplifies rail planning, although analog and digital return-current paths still require careful PCB partitioning. Before layout, compare the exact CS4223-KSR pinout and electrical limits against the selected schematic revision. The public search results identify the package as 28-pin SSOP, but they do not provide a complete verified pin table in the supplied data; no pin names are therefore inferred here. Likewise, sample rate, clock range, analog input and output range, and recommended external component values require confirmation in the manufacturer datasheet. This product page consolidates the verified distributor descriptions, manufacturer-family data, package information, and practical selection considerations for the CS4223-KSR. It separates confirmed specifications from unavailable parameters and focuses comparison on genuine same-package family options rather than presenting unrelated codecs as drop-in replacements.
CS4224-BS - 24-Bit 105dB Stereo Audio Codec | Cirrus Logic
Cirrus Logic CS4224-BS is a 24-bit, 105 dB stereo audio codec with integrated analog-to-digital and digital-to-analog converters and volume control in a 28-pin SSOP package. The device combines a stereo 24-bit ADC and stereo 24-bit DAC, uses delta-sigma conversion techniques, and operates from a single +5 V power supply. An audio codec is a mixed-signal semiconductor that converts signals between the analog and digital domains. The CS4224 family belongs to the codec hierarchy, which includes audio codecs, interface ICs, data converters, and broader signal-processing semiconductors. Its integrated ADC and DAC reduce the number of external conversion components needed in professional audio, communications, and digital audio equipment. Key features include 24-bit conversion resolution, a stated 105 dB signal-to-noise characteristic, integrated volume control, stereo conversion channels, and operation from one +5 V supply. These characteristics make the device appropriate for audio capture and playback systems where a compact, dedicated codec is preferable to discrete converters. Its integrated volume function can simplify analog-level control, although system-level gain planning must prevent overload and preserve headroom. The CS4224-BS uses delta-sigma conversion to implement the analog-to-digital and digital-to-analog functions. According to the Cirrus Logic CS4224 family datasheet, the architecture is designed for high-performance 24-bit audio operation in a single integrated device. Exact interface timing, clock requirements, analog performance, input and output topology, and recommended external component values must be confirmed against the manufacturer datasheet before layout or firmware is finalized. Typical uses include digital audio consoles, multimedia and communications equipment, sound-card signal paths, and other stereo audio systems requiring simultaneous analog capture and playback. In such systems, the codec can sit between analog microphones or line-level sources and a digital audio processor, while digital program audio is converted back to analog for monitoring or amplification. Designers should follow the manufacturer pinout and reference connection exactly, paying particular attention to analog grounding, supply decoupling, clock routing, and the treatment of unused inputs and outputs. Because the verified product listing identifies the CS4224-BS as a 28-SSOP and describes it as a 24-bit, 105 dB codec with volume control, those details can be cited confidently; additional electrical values remain subject to the datasheet. This page consolidates the verified distributor identity, pricing reference, package information, family-level description, drop-in evidence, and practical design guidance. It also distinguishes confirmed specifications from parameters that still require verification, providing a more useful engineering record than an uncontextualized distributor listing.
CS4226-BQ 6-Channel Surround Sound Codec | Cirrus Logic
The Cirrus Logic CS4226-BQ is a six-channel surround-sound audio codec with stereo analog-to-digital conversion, six digital-to-analog channels, and independent volume control, supplied in a 44-pin TQFP package measuring 10 mm by 10 mm. It operates from a 4.75 V to 5.25 V supply and is specified across a -40 °C to +85 °C temperature range. The supported digital interfaces include I2C and SPI, while the verified device data identifies a sampling-frequency range of 4 kHz to 50 kHz. An audio codec is a mixed-signal integrated circuit that converts between analog audio signals and digital audio data. Within the semiconductor hierarchy, it is an interface IC and audio codec rather than a conventional amplifier or standalone converter. The CS4226 combines delta-sigma conversion stages, a stereo ADC path, six DAC channels, independent channel-volume functions, and digital control into one device for multichannel audio systems. The principal feature of the CS4226-BQ is its six-channel DAC architecture with independently selectable volume control for each output. This allows a multichannel system to balance individual speaker or surround channels in software. The device also provides a stereo ADC, an I2C/SPI control interface, and a frequency range suitable for conventional digital audio streams. Its single 5 V operating region simplifies analog and digital supply planning when the rest of the system uses a compatible rail. The CS4226 family uses delta-sigma conversion techniques rather than the R-2R ladder architecture associated with some high-end audio converters. Delta-sigma converters integrate a noise-shaping and digital-filtering process into the conversion path. The CS4226 datasheet identifies the component as a surround-sound codec, and its control-port listings include SCL/CCLK, SDA/CDOUT, AD1/CDIN, AD0/CS, LRCK, SCLK, and the six DAC data inputs and outputs. Typical uses include surround-sound decoding in home theater equipment, multichannel amplifier systems, active speaker electronics, AV receivers, and other equipment requiring several independently controlled digital audio outputs. A stereo source can be routed into the codec's digital conversion and processing architecture, while separate digital streams or channels can be assigned to the six DAC outputs. The device can also be paired with external amplifiers when the required output power exceeds the codec's signal-routing role. Designers should treat the CS4226-BQ as a mixed-signal device and preserve clean separation between analog and digital return currents. The 5 V supply must remain within the specified 4.75 V to 5.25 V range, and unused analog, digital, and control resources should be terminated according to the manufacturer datasheet. PCB layout, grounding, clocking, and supported data-format details must be confirmed from the complete CS4226 documentation before a production design is released. This page consolidates verified distributor and datasheet information, organizes the commercial and technical selection questions engineers commonly need, and explicitly identifies parameters that require confirmation from the manufacturer documentation. That distinction is important because the public search results verify the core codec identity, package, supply range, temperature range, interface types, and sampling range but do not expose every electrical, timing, pin-level, and lifecycle detail.
CS4280-CM Audio Volume Control IC | Cirrus Logic | PCI
Cirrus Logic CS4280-CM is a one-channel audio volume-control and power-management IC for PCI audio systems, supplied in a 100-pin MQFP package measuring 20 mm by 14 mm. The verified operating-temperature range is 0°C to +70°C, while the listed supply ranges are 3 V to 3.6 V and 4.75 V to 5.25 V. Its documented features include an integrated phase-locked loop, on-chip digital gain, an asynchronous digital serial interface, and power-management functions. The CS4280 is associated with CrystalClear PCI audio implementations and is commonly paired with the CS4297 audio codec. An audio volume-control IC is a specialized interface-circuit category that controls signal level and coordinates an audio subsystem with its digital host. Within the broader hierarchy, the CS4280-CM belongs to the audio special-purpose interface IC class, which falls under interface ICs and ultimately integrated circuits. Its role differs from a general-purpose audio codec: the volume-control device manages gain and supporting control functions, while the companion codec performs much of the audio conversion and signal processing. This division of responsibilities was common in PCI-based sound-card architectures. The CS4280-CM combines digital gain control with internal synchronization support. The integrated phase-locked loop can provide the timing reference required for coordinated digital audio operations, while the asynchronous digital serial interface allows the host controller to exchange control information with the device. On-chip digital gain provides software-addressable level adjustment without relying exclusively on an external passive attenuator. Together, these features support centralized volume control, mute-related system management, and coordinated operation with a companion audio codec. The CS4280 belongs to a family of legacy Crystal Semiconductor and Cirrus Logic audio devices designed for personal-computer sound-card implementations. Verified cross-reference information identifies CS4281-CM as an alternative, and the CS4280 is documented as pin-compatible with the earlier CS4614 and CS4622/CS4624 families. These relationships are useful for repair and legacy-platform work, although board-level compatibility must include verification of supply rails, clocking, software registers, and companion codec requirements. The MQFP package is intended for surface-mount assembly and provides a large, inspectable footprint compared with modern compact audio IC packages. Typical uses include CrystalClear PCI sound cards, DOS-era and Windows 98-era multimedia computers, multi-function audio adapters, and legacy industrial or retrocomputing systems that retain support for the CS4280 and its associated drivers. The CS4297-JQ is a relevant companion because verified sources specifically describe the CS4280 as commonly used with the CS4297 codec. The CS4216-KL represents another nearby audio-interface family that may be relevant when comparing platform architectures, although it is not presented as a direct substitute for the CS4280-CM. When repairing or repurposing a board, verify the complete 100-pin footprint, 3.3 V and 5 V rail requirements, clock connections, serial interface topology, and codec handshake before ordering. The documented 0°C to +70°C range limits deployment to commercial-temperature environments unless the surrounding system and the actual sourced component provide wider qualification. Because the verified material identifies the CS4280 family as an obsolete or end-of-life product, procurement planning should emphasize authorized inventory, traceable sourcing, and a full functional test after replacement.
CS4297-JQ AC'97 Stereo Audio Codec | Cirrus Logic | PC
Cirrus Logic CS4297-JQ is a 2-channel, AC'97 1.03-compatible stereo audio codec designed for PC multimedia systems and housed in a 48-TQFP 7 x 7 mm package. The device uses CrystalClear delta-sigma and mixed-signal technology to support high-quality audio in desktop, portable, and entertainment PCs. It integrates stereo modulation and a 48-kHz audio interface for legacy multimedia designs. An audio codec is a mixed-signal semiconductor that converts digital audio data into analog signals and accepts analog inputs for digital processing. In the product hierarchy, the CS4297-JQ is an audio codec and audio modulator, belonging to the broader interface IC and semiconductor categories. Its legacy AC'97 interface connects a host audio controller to external codec and speaker circuitry in PC sound-card architectures. The verified product data identifies the CS4297-JQ as an AC'97 1.03-compatible stereo codec with two channels. Its package is specified as 48-TQFP at 7 x 7 mm by DigiKey, while related Cirrus Logic records identify the package as LQFP. The compact surface-mount package supports compact desktop and portable multimedia layouts, although the large 48-pin footprint requires careful fanout and layout planning. Technical documentation describes the analog line inputs as internally biased at the Vrefout voltage reference and requiring AC coupling. The maximum allowable line input is 1 V RMS. These details make external coupling, input attenuation, and analog-ground return paths central to achieving predictable signal amplitude and reduced distortion in a legacy sound-card implementation. Typical applications include PC sound cards, desktop multimedia systems, portable entertainment computers, legacy AC'97 audio subsystems, and retro computer restorations. The device is particularly relevant when preserving an original SoundFusion architecture is more important than selecting a current USB or HD Audio codec. Designers should verify the complete pinout and electrical limits against the manufacturer datasheet before layout or repair work. AC-coupled line inputs require suitable passive components, while mixed-signal placement and grounding must keep switching and digital return currents away from sensitive audio paths. The listed alternatives should also be checked for exact interface, voltage, clocking, and pin compatibility rather than package alone. This page consolidates verified distributor descriptions, cross-reference findings, practical application context, and design cautions for engineers sourcing or restoring systems that depend on this discontinued stereo AC'97 codec.
CS4297A-JQ - AC'97 Stereo Audio Codec | Cirrus Logic
The Cirrus Logic CS4297A-JQ is an AC'97 2.1-compatible stereo audio codec for PC multimedia systems, featuring CrystalClear delta-sigma mixed-signal conversion, 18-bit audio, 20-bit S/PDIF support, and SPI control in a 48-LQFP 7 x 7 mm package. An audio codec is a mixed-signal interface IC that converts between digital audio data and analog microphone or line-level signals. The CS4297A-JQ combines one analog-to-digital converter, one digital-to-analog converter, and the AC'97 serial audio interface used by PC-compatible multimedia controllers. Within the semiconductor hierarchy, it belongs to the audio-codec and interface-IC categories rather than a standalone amplifier or converter. Key features include AC'97 2.1 compatibility, stereo conversion, CrystalClear delta-sigma technology, 18-bit ADC and DAC resolution, a 20-bit S/PDIF interface, and SPI configuration. These functions allow a PC multimedia system to capture and playback stereo audio while sharing digital control through the SPI interface. The 48-LQFP package also provides a defined leaded footprint suitable for conventional surface-mount PCB assembly. The device integrates analog input and output circuitry with a digital AC-Link path. Its delta-sigma conversion architecture is intended for multimedia audio rather than high-bandwidth industrial signal acquisition. The S/PDIF interface provides a digital route for digital audio, while the AC'97 interface connects the codec to a compatible multimedia controller. Exact clock requirements, conversion-rate limits, analog performance, and electrical limits must be confirmed in the manufacturer datasheet before final system design. Typical uses include legacy PC multimedia systems, desktop and portable entertainment computers, and sound cards that require an AC'97-compatible stereo codec. It is particularly relevant when maintaining or repairing an existing PC architecture rather than designing a new USB or I2S audio subsystem. Software compatibility also depends on the host controller, operating system, driver, and the exact AC'97 electrical implementation. For new designs, confirm that the legacy AC'97 architecture is required and that the host controller supports the codec's serial protocol. Preserve the manufacturer's recommended decoupling, analog layout, clocking, and grounding practices. Because this is an older PC multimedia component, lifecycle status, interface timing, and long-term availability deserve verification before committing a new production platform. This page combines the verified CS4297A-JQ product identity, package information, AC'97 feature set, ordering alternatives, selection guidance, and practical integration notes. It also distinguishes confirmed drop-in ordering notation from broader functional equivalents so engineers can assess replacement risk without assuming that every similar audio codec is electrically interchangeable.
CS4299-XQ Stereo AC'97 Audio Codec | Cirrus Logic
The Cirrus Logic CS4299-XQ is a mixed-signal stereo audio codec designed for AC'97 2.1-compatible PC multimedia systems. It combines a digital controller interface, analog audio conversion, and CrystalClear delta-sigma mixed-signal technology in a surface-mount LQFP package. The device was intended to pair with a digital controller located on the PCI bus or integrated within system core logic, making it primarily relevant to legacy desktop, portable, and entertainment PC designs. An audio codec is a mixed-signal integrated circuit that converts digital audio data into analog signals and converts analog sound into a digital format for processing by a host controller. The CS4299-XQ is an AC'97 codec, so its principal interfaces are the Audio Codec '97 serial link and analog audio connections rather than a modern USB or I2S audio interface. AC'97 was designed for PC multimedia architectures and supports synchronized audio, modem, and control functions through a defined digital bus. According to the Cirrus Logic CS4299 datasheet, the CS4299 contains AC'97-compliant control registers and additional Cirrus Logic-defined control registers. These registers configure the codec's core functions and support firmware or software control of audio behavior. The implementation uses CrystalClear delta-sigma and mixed-signal technology, a Cirrus Logic approach intended to support high-precision audio conversion in multimedia equipment. The CS4299-XQ is relevant to retrofitted desktop computers, industrial legacy systems, embedded AC'97 hosts, audio test equipment, and restoration projects involving older PCI-based sound subsystems. Its AC'97 architecture provides a direct interface to compatible host controllers, while analog input and output stages support connections to microphones, line-level sources, speakers, and external audio amplifiers. For a new design, confirm that the host controller still supports AC'97 2.1 and verify the complete pin, clock, voltage, and analog specification before layout release. The CS4299 is a legacy codec, and modern systems commonly use USB audio, I2S, or integrated HD audio controllers instead. An existing motherboard is also a critical consideration because the required driver, interrupt, bus, and codec-support capabilities may not exist on current platforms. This page combines the confirmed codec architecture and AC'97 application information with engineering guidance, comparison fields, and sourcing links for the CS4299-XQ. It also identifies which electrical and package details should be checked against the manufacturer datasheet before production use.
CS4630-CM - CrystalClear PCI Audio Accelerator | Cirrus Logic
Cirrus Logic CS4630-CM is a CrystalClear SoundFusion PCI audio accelerator offered in a 128-pin MQFP surface-mount package measuring 14 mm by 20 mm by 2.85 mm. The device is described as a high-performance upgrade to the CS4624 PCI audio accelerator and supports legacy compatibility modes that enable real-mode DOS compatibility within PCI-only audio subsystems. It also operates from multiple supply rails, including 3.3 V, 2.5 V, and 5 V conditions documented in the manufacturer datasheet. A PCI audio accelerator is an interface integrated circuit that manages audio data movement between a host computer's PCI bus and audio codecs or other audio peripherals. Its role within the broader hierarchy is an interface IC and, more specifically, an audio interface device. Legacy compatibility support distinguishes the CS4630-CM from basic modern audio controllers by allowing older operating environments to interact with PCI-based audio hardware. The verified electrical information includes operating test conditions of 0°C to 70°C, with PCIVDD and CRYVDD at 3.3 V, CVDD at 2.5 V, and VDD5REF at 5 V. The datasheet identifies PCI signal characteristics with a 3.3 V logic-high level, a 0 V logic-low level, and a 1.4 V reference level. It also documents dedicated second AC'97 data-input, bit-clock, and link-clock functions. The CS4630-CM supports a primary and secondary AC'97 audio-link arrangement, with dedicated pins for second AC'97 data input, bit clock, and serial audio traffic. This architecture is appropriate for legacy PCI multimedia adapters, industrial computers, and specialized embedded systems that retain AC'97 codec connections while requiring the CS4630's documented compatibility capabilities. Typical engineering uses include DOS-compatible PCI sound cards, industrial PCI audio subsystems, legacy embedded-computer upgrades, and audio adapters requiring a dedicated hardware accelerator. Because the part is reported as obsolete or end-of-life, procurement should emphasize authorized inventory, traceability, and functional validation rather than treating new design adoption as the default. A critical design consideration is package verification. The part is documented as a 128-MQFP, also identified as a 128-BFQFP in MS-022, rather than a modern QFN package. PCB footprints, pin numbering, and soldering process requirements must therefore be checked against the original package drawing before assembly or replacement. This product page consolidates the verified manufacturer and distributor information, observed pricing, lifecycle evidence, package data, technical operating conditions, and application guidance for engineers evaluating the obsolete CS4630-CM PCI audio accelerator.
CS61584-IQ5 - Dual T1/E1 3.3V/5V Line Interface Unit | Cirrus Logic
The Cirrus Logic CS61584-IQ5 is a Dual T1/E1 Line Interface Unit (LIU) designed for short-haul and long-haul telecom applications, integrating two independent transceivers for T1 (1.544 Mbps) and E1 (2.048 Mbps) line formats in a single 64-pin TQFP (10x10 mm) package. The part operates from a single 5 V supply (4.75 V to 5.25 V), supports 3.3 V digital I/O via dedicated VDD_IO, and dissipates power dissipation of 310 mW typical. According to Cirrus Logic product listings, the device is housed in a TQFP-64 (10x10 mm) surface-mount package rated -40 C to +85 C industrial temperature range, and the IQ5 suffix indicates a specific speed/temperature grade per Cirrus Logic ordering nomenclature. A Line Interface Unit (LIU) is a physical-layer transceiver IC that sits between a framer/framer-LIU combination and the T1 or E1 twisted-pair line, performing transmit pulse shaping, receive equalization, clock/data recovery, and line monitoring. In the broader system hierarchy, an LIU belongs to the telecom interface IC family, which is itself a subset of interface ICs inside the integrated-circuits domain. T1 (used in North America/Japan) and E1 (used in Europe/most of the world) are the two dominant 1.544 Mbps / 2.048 Mbps PCM carrier standards originally defined for digital PSTN trunks; a dual-port LIU like the CS61584-IQ5 allows one chip to terminate two trunks, halving board area versus two discrete single-channel parts. Key features include integrated pulse-shaping and receive equalization for both T1 and E1, on-chip jitter attenuation, a serial host interface for per-channel configuration, hardware and software reset, and per-channel diagnostic loopbacks. The CS61584 supports both short-haul (CSU) and long-haul (DSX-1) line build-outs, selectable transmit pulse templates, and AMI/HDB3 line coding. Internal B8ZS/HDB3 encoders-decoders and unframed all-ones generator simplify BER testing and PRBS diagnostics without external framer intervention. Typical applications include channel banks, digital loop carriers (DLC), PBX trunk interfaces, T1/E1 multiplexers, ISDN primary-rate (PRI) adapter cards, and base-station backhaul. Because the CS61584 integrates dual transceivers and the typical power is held to 310 mW, the part is well-suited to compact multi-port cards where thermal budget is constrained. Designers should provide proper 1:2 or 1:1.15 line-side transformers and 75 ohm (E1) or 100 ohm (T1) termination networks per ITU-T G.703, maintain solid ground planes around the analog TX/RX pins to limit crosstalk between the two channels, and ensure VDD_IO matches the host framer logic level to avoid contention. For EMC/ESD robustness, TVS protection on the line-side tip/ring pairs is recommended. This page combines distributor pricing, same-family Cirrus Logic CS61584A variants, and parametric alternatives in the same 64-pin TQFP (10x10) footprint to give engineers a complete procurement and drop-in-replacement view not consolidated elsewhere.
CS82C37A - 5V 8MHz CMOS DMA Controller | Renesas
The Renesas Electronics CS82C37A is a 5 V CMOS programmable direct memory access controller with an 8 MHz operating frequency in a 44-pin PLCC package. It is an enhanced implementation of the industry-standard 8237A DMA controller, adding functionality and performance while retaining pin compatibility with NMOS designs. The device uses a 2-micron CMOS process and includes a fully static architecture that supports gated operation. A direct memory access controller is an interface IC that transfers blocks of data between memory and peripherals without requiring continuous processor intervention. The DMA controller therefore fits within the broader hierarchy of interface controllers, bus-interface devices, semiconductors, and programmable system support logic. It is particularly useful in legacy embedded systems where a processor must service multiple high-throughput data paths while retaining deterministic memory access. The CS82C37A operates from a 5 V supply and supports an 8 MHz clock. Its principal functions include programmable transfer modes, address generation, byte and word transfers, terminal counts, request generation, and status reporting. These capabilities allow it to move data among system memory and peripheral devices with less CPU overhead than software-driven block transfers. The 44-PLCC package provides a through-hole-compatible surface-mount footprint with 0.64 mm pitch and a 16.58 mm by 16.58 mm body. The package is relatively large compared with modern fine-pitch controllers, but it remains practical for legacy computer, industrial-control, test-equipment, and embedded-system boards that were designed around the 8237A interface. Typical applications include IBM PC-compatible DMA subsystems, data-acquisition equipment, communication adapters, memory-to-memory transfers, and industrial peripherals requiring autonomous block movement. The CS82C37A is most appropriate when preserving an established 8237A bus architecture is more important than adopting a newer DMA controller with a different electrical or programming interface. Before replacing an original 8237A, verify the system clock, control-signal timing, address multiplexing, interrupt behavior, and package pin arrangement against the manufacturer datasheet. The enhanced CS82C37A is designed to reduce power consumption relative to the original NMOS implementation, but the surrounding processor, peripheral devices, memory timing, and bus timing still determine the achievable system throughput.
CS82C52 - Programmable UART and BRG | Intersil
The Intersil CS82C52 is a programmable Universal Asynchronous Receiver/Transmitter (UART) with an integrated Baud Rate Generator (BRG) in a 28-pin PLCC package. It is designed for serial-controller and UART interface applications where programmable baud-rate timing and asynchronous data transfer are required. The verified distributor listing identifies the device as a one-channel RS232 UART IC in a 28-PLCC package measuring 11.51 mm by 11.51 mm. A UART is a serial communication interface that converts parallel data from a controller into a framed serial stream and converts received serial data back into parallel data. The CS82C52 combines this UART function with a programmable baud-rate generator, placing transmit timing, receive timing, and serial-channel control in one CMOS interface IC. This integration reduces the number of external timing components compared with a UART implemented from separate logic. The verified material describes the CS82C52 as a high-performance programmable UART and BRG on a single chip. Its programmable architecture makes it suitable for systems in which the communication rate must be selected by the host controller or fixed through configuration logic. The RS232 classification identifies the electrical-interface class used by the associated UART function, while the actual board-level signal levels still depend on the transceiver and system design. Typical uses include embedded serial controllers, legacy industrial control equipment, peripheral interfaces, and communications systems that require a dedicated UART channel. The 28-pin PLCC package provides a defined leaded surface-mount footprint, allowing the part to be used where a compact, inspectable package is preferable to a fine-pitch package. The available data does not provide complete electrical timing tables, supply-voltage limits, or all pin-level details, so those specifications require confirmation from the manufacturer datasheet. For replacement work, engineers should verify the exact package, pin assignments, electrical limits, timing, temperature grade, and software-visible register behavior before approving a substitute. The device is an older CMOS interface component, so lifecycle status and sourcing should be confirmed at the time of procurement. Pricing and inventory are also time-sensitive and should be checked against current distributor records.
CS82C52Z - 5V 16MHz UART with Baud Rate Generator | Renesas
The Renesas Electronics CS82C52Z is a 5 V CMOS UART and baud-rate generator combining one programmable asynchronous serial channel and one baud-rate clock source in a 28-pin PLCC package. It operates from a 5 V supply, supports a 16 MHz input clock, and is specified for RS232 interface applications. A universal asynchronous receiver/transmitter, or UART, is an interface controller that converts parallel processor data into serial characters and converts received serial characters back into parallel data. The CS82C52Z belongs to the UART and serial-interface IC hierarchy, where it sits below microprocessors and above the physical RS232 transceiver stage. Its integrated baud-rate generator reduces the external clock circuitry required to support programmable communication rates. Key device attributes include a 28-pin PLCC package measuring 11.51 mm by 11.51 mm, a single UART channel, RS232 interface capability, and operation from 5 V. The original Intersil implementation used an advanced 2 µm CMOS process. Distributor records also identify the component as a peripheral UART and baud-rate generator with a 16 MHz maximum clock indication and a Pb-free assembly designation. The architecture supports programmable asynchronous serial communication in systems where a dedicated general-purpose UART is preferable to implementing the bit-timing state machine in application firmware. Because the baud-rate generator and serial interface share the same IC, designers can reduce component count while retaining clock generation, receive, and transmit functions in one device. RS232 signal levels still require an external line driver or receiver when the board must connect to a physical RS232 port. Typical uses include industrial control equipment, data acquisition systems, legacy peripheral interfaces, embedded test equipment, and RS232 communication links between a controller and a peripheral module. The CS82C52Z is also suitable for designs that retain older Intersil or Renesas interfaces but need a second source. Any replacement should be checked for identical pin functions, register behavior, interrupt structure, baud-rate generation, and signal-level compatibility rather than package outline alone. When designing around the CS82C52Z, connect it to a 5 V rail with normal high-speed decoupling and confirm that the external RS232 transceiver operates from the same supply. The PLCC package is not a leaded-through-hole format and requires a suitable surface-mount land pattern and assembly process. Use the manufacturer pin-description table to assign board nets because the package drawing alone does not establish signal direction or handshake functions. This page combines device specifications, sourcing guidance, drop-in cross-reference findings, application-level design advice, and a parameter-by-parameter comparison to support both legacy maintenance and new design decisions involving the CS82C52Z.
CS82C55A - 24-Bit CMOS Programmable I/O Interface
Renesas Electronics CS82C55A is a CMOS programmable peripheral interface that provides 24 individually programmable input/output lines, an 8-bit data bus, and three principal operating modes for microprocessor-controlled I/O expansion. The device operates from a single 5 V supply in its standard configuration, supports an 8 MHz interface clock, and is offered in a 44-pin PLCC package according to the product listings. Its architecture follows the industry-standard 8255A configuration and is compatible with 80C86, 80C88, and other microprocessor bus arrangements. A programmable peripheral interface is an interface IC used to extend a limited microprocessor bus with general-purpose digital I/O. It belongs to the parallel interface and interface-controller hierarchy, where a system CPU handles configuration while the CS82C55A manages data transfer, handshaking, and port direction control. The CS82C55A divides its 24 lines into two independently controlled groups of 12, allowing each group to operate as an 8-bit port with four control lines, as two 4-bit ports, or as individual bit-oriented channels. The device's three main operating modes provide design flexibility. Mode 0 supports strobed input or output operation, Mode 1 provides programmed interrupt and handshake signaling for peripheral data transfer, and Mode 2 supports bidirectional bus operation on one port. Each of the 24 lines can be configured as input or output, and the two 4-bit port-control signals can operate in either strobed or interrupt-driven form. This makes the part useful when a processor needs more parallel lines than are available on its native bus. Manufactured using a self-aligned silicon-gate CMOS process identified as Scaled SAJI IV, the CS82C55A provides static CMOS operation with low operating power. Its 5 V supply arrangement and 8 MHz clock capability allow it to interface with the timing envelope of the microprocessor families cited in the manufacturer documentation. The PLCC-44 package also supports leaded-board assembly, although board layout must preserve the device's exact pin arrangement and supply requirements. Typical uses include industrial control panels, printer and peripheral interfaces, general-purpose data acquisition, legacy industrial equipment, and embedded systems that retain an 8255A-compatible interface. The part is especially useful where configurable input, output, and handshake behavior is preferable to a fixed-purpose I/O expander. Firmware must configure the control word before each operating-mode change because the mode registers are write-only and do not retain their contents after reset. A key design consideration is verifying the original board's signal direction, reset state, and timing assumptions rather than assuming that every 8255A implementation is electrically identical. Confirm the supply voltage, clock source, control-word sequence, and processor handshake signals against the manufacturer datasheet. If replacing an older device, check whether its board uses an 8255-compatible clock and whether any external logic depends on a particular mode-change transition. This page consolidates the manufacturer's functional description, package and interface specifications, qualified drop-in references, and practical implementation guidance to support component identification, PCB reuse, and replacement planning.
CS82C59A - CMOS Priority Interrupt Controller | Renesas
Renesas Electronics CS82C59A is a CMOS priority interrupt controller manufactured using a 2 µm CMOS process, with eight interrupt inputs and a 28-pin PLCC package. It accepts eight interrupt requests, prioritizes simultaneous requests through the cascaded interrupt architecture, and supports microprocessor interrupt systems requiring deterministic service ordering. The device is designed for direct use with processors including the 80C286, 80286, 80C86/88, 8086/88, 8080/85 and NSC800. A programmable interrupt controller is an interface IC that manages multiple peripheral interrupt requests on behalf of a central processing unit. Instead of polling every peripheral, the processor receives one interrupt request from the controller and reads a priority register to identify the source. In the broader semiconductor hierarchy, the CS82C59A belongs to the interface-controller family and reduces processor overhead in embedded and industrial control systems. The controller provides eight interrupt inputs, allowing eight interrupt sources to share a processor interrupt line. Cascaded operation supports expansion beyond the base interrupt count, while the industry-standard configuration accommodates common 8-bit and 16-bit processor interrupt architectures. The CMOS implementation combines low-power operation with the operating characteristics expected from the original 82C59A family. The CS82C59A was manufactured on an advanced 2 µm CMOS process. Its interrupt logic is intended to provide high performance in multilevel priority systems by removing the need for continuous software polling. Exact clock, propagation-delay, supply-voltage and current limits require confirmation against the manufacturer datasheet before a new high-speed or low-power design is released. Typical applications include industrial controller cards, embedded processor platforms, data-acquisition systems, peripheral-interface boards and legacy-compatible industrial equipment. A suitable design connects interrupt sources to the controller inputs, programs the required priority and mask configuration, and connects the controller output to the processor interrupt mechanism. System firmware must preserve the established interrupt-acknowledge sequence. The principal design consideration is architectural rather than thermal: the CS82C59A is a legacy peripheral built around an established interrupt convention. Before placing it in a new design, verify processor timing, acknowledge protocol, voltage compatibility and package availability against the intended processor and peripheral environment. This page organizes the controller's role, package, documented processor compatibility, application guidance and verified substitute information. It also identifies where timing, electrical limits and lifecycle details must be checked directly in the manufacturer documentation before schematic release.
CS8406-DSZ - 192 kHz Digital Audio Interface Transmitter | Cirrus Logic
Cirrus Logic CS8406-DSZ is a 192 kHz digital audio interface transmitter (DIT) that encodes and transmits two-channel PCM audio data onto a single differential cable in accordance with the AES3, IEC60958, S/PDIF or EIAJ CP1201 standards. The device is offered in a 28-lead SOIC package and operates from a 3.3 V or 5.0 V supply. A digital audio interface transmitter, or DIT, is the bridge between a digital audio source and a physical digital audio link. A source such as a DAC, a digital mixer or an audio codec produces parallel PCM samples and a clock; the DIT multiplexes those samples, adds framing and parity information, and converts the result into a serial differential stream. In the signal-chain hierarchy it sits below the audio codec and DAC, above the physical cable, and therefore at the boundary of the digital audio interface IC family. Key features include full 192 kHz sample-rate support, hardware control pins that configure the output format and master-clock behavior without host intervention, and a 3-wire serial control interface for register-based configuration. The transmitter accepts serial audio with an ILRCK-derived or external word clock, provides an SDIN data input and an ISCLK system clock input, and can either pass through or generate the master clock through the OMCK output. Architecturally the CS8406 is a monolithic CMOS device that multiplexes the incoming audio data, applies the digital audio framing and biphase encoding, and drives the TXP and TXN differential outputs through an integrated line driver. Serial audio source, clock, source and control are separated into dedicated pins so that both hardware-strapped and software-configured operating modes are supported, which allows a design to be configured at assembly time and fine-tuned later through the serial control port. Typical applications include AV and DVD receivers, CD recorders, digital mixing consoles, professional audio equipment, set-top boxes, and any product that must deliver a S/PDIF or AES3 output from a digital audio engine. The dual-rail-capable supply lets the same part fit both 3.3 V and 5.0 V system architectures. When designing with the CS8406, note that the differential outputs must be AC-coupled to the receiving device and that the output format, master-clock mode and parity setting must be matched to the receiver; a mismatch in framing mode is the most common cause of intermittent audio lock. Use the pin-description and typical-application tables in the manufacturer datasheet when assigning PCB tracks and selecting capacitors. This page consolidates the manufacturer interface description, drop-in sourcing options, pin-level design notes and application guidance into a single engineering reference for the CS8406-DSZ.
CS8406-IS - 192kHz Digital Audio Transmitter | Cirrus Logic
Cirrus Logic CS8406-IS is a monolithic CMOS digital audio interface transmitter supporting up to 192 kHz, one-channel transmission, and configurable three-wire audio input in a 28-lead TSSOP-class package. The device accepts audio and digital data, multiplexes and encodes the signal, and drives the result onto a cable using AES3, IEC60958, S/PDIF, or EIAJ CP1201 formats. A digital audio interface transmitter is a signal-conditioning device within the broader digital audio IC hierarchy. It converts a parallel or serial source stream into a standardized digital-audio signal for transmission between consumer, professional, automotive, and industrial audio equipment. The CS8406 occupies the interface level between an audio codec, DAC, or digital audio source and a physical S/PDIF output. Its monolithic CMOS implementation combines the configurable input interface, channel-status handling, multiplexing, encoding, and output stage in one device. The primary verified features of the CS8406 include operation up to 192 kHz, support for one transmitted channel, AES3, IEC60958, S/PDIF, and EIAJ CP1201 standards, and a configurable three-wire input port. The transmitter architecture allows digital audio and related data to be multiplexed, encoded, and placed onto the output cable. This integration reduces the number of separate interface components required in equipment that must exchange digital audio over a standardized digital connection. The CS8406 family is designed for digital-audio source equipment requiring an industry-compatible transmitter output. Its configurable input port supports systems in which the source device presents audio through a three-wire interface rather than requiring a fixed external signal arrangement. The device separates the digital-audio transmission function from the source conversion function, allowing an existing ADC, DAC, audio codec, or digital audio engine to drive the transmitter. Typical applications include professional audio equipment, consumer audio receivers, recording-system clock and data paths, digital mixers, home-theater components, and industrial audio interfaces. The 192 kHz capability is relevant to high-resolution audio architectures, while the S/PDIF-compatible output provides a conventional link to compatible receivers and processors. System designers must still verify the source format, channel-status handling, electrical output implementation, and intended operating grade against the manufacturer datasheet. When laying out a CS8406-IS design, place the device close to the digital-audio source and minimize routing around the input and output pins. The manufacturer documentation recommends mounting decoupling capacitors on the same side of the board as the CS8406 and placing them close to the device to minimize inductance effects. Check output-interface implementation, grounding, cable termination, and any external filtering against the exact package variant before release to production. This page consolidates the verified manufacturer and distributor information for the CS8406-IS with package caveats, drop-in-family comparisons, procurement guidance, and practical layout guidance. It distinguishes confirmed CS8406 capabilities from electrical details that still require confirmation from the exact ordering code and its datasheet.
CS8411-CP Digital Audio Receiver | 256x Fs | Cirrus Logic
Cirrus Logic CS8411-CP is a monolithic CMOS digital audio interface receiver with on-chip clock recovery and a 256x Fs output clock, supplied in a 28-pin PDIP package. It receives and decodes professional and consumer digital-audio transmission formats identified in the manufacturer documentation as AES/EBU, IEC 958, S/PDIF, and EIAJ CP-340. A digital audio interface receiver is an interface IC that reconstructs timing and synchronization from a serial digital-audio stream. In the signal-chain hierarchy, a receiver belongs to the digital-audio interface family, connects a physical digital transmission to a clocked audio system, and forms part of the broader interface-IC and semiconductor categories. Its principal function is to recover the transmitted clock and provide synchronized timing for downstream audio-processing circuitry. The CS8411 family combines a monolithic CMOS implementation, low-jitter on-chip clock recovery, and a 256x Fs output-clock capability. These features make the device suitable for digital-audio equipment that needs a stable recovered or divided clock rather than merely decoded audio data. The -CP ordering code identifies the listed 28-pin PDIP package, allowing the part to be used in designs that support a through-hole digital-audio receiver footprint. The receiver architecture is intended for serial digital-audio links using AES/EBU, IEC 958, S/PDIF, or EIAJ CP-340 signaling. Clock recovery is particularly important when the source and receiving circuitry do not share a common low-jitter reference clock. The 256x Fs output clock provides a higher-frequency timing reference derived from the received stream, which can support downstream clocking, conversion, or synchronization functions. Typical applications include professional digital-audio equipment, consumer S/PDIF receivers, digital mixers, audio converters, recording-system clocking, and equipment interfaces that accept a digital-audio transmission. In these systems, the CS8411-CP can receive the serial stream, recover timing, and expose a predictable clock relationship to the surrounding audio architecture. Designers should verify the complete electrical limits, pin assignment, and application circuit against the Cirrus Logic datasheet before layout. PCB placement should minimize digital-clock and serial-data trace exposure to analog or high-current power paths. Decoupling and input-termination requirements must follow the manufacturer recommendations for the selected source impedance and digital-audio topology. This page consolidates the confirmed interface standards, 256x Fs clock output, CMOS implementation, package information, sourcing path, and engineering guidance for CS8411-CP. It also distinguishes verified device attributes from electrical details that require confirmation in the original manufacturer documentation.
CS8416-DNZ - 8-Channel 192kHz Audio Receiver | Cirrus Logic
Cirrus Logic CS8416-DNZ is a monolithic CMOS digital audio interface receiver with eight stereo input channels, a maximum sampling rate of 192 kHz, and a 28-pin QFN package measuring 5 mm by 5 mm. It receives and decodes digital audio according to the IEC60958, S/PDIF, EIAJ CP1201, and AES3 interface standards. Its integrated 8:2 input multiplexer allows eight stereo digital-audio streams to be selected into one serial output path. A digital audio receiver is an interface IC that accepts encoded audio data, identifies the supported transport format, and converts that data into a serial digital-audio stream suitable for a DAC, audio processor, or digital mixing system. Within the broader semiconductor hierarchy, the CS8416 belongs to the digital-audio receiver class, then to interface ICs and signal-chain semiconductors. It is designed for systems requiring multiple digital inputs, channel-status handling, and flexible configuration rather than analog audio amplification. The CS8416 supports sample rates through 192 kHz and can operate in software-controlled or hardware-controlled configuration. The software mode uses a selectable control port, while hardware mode uses dedicated configuration pins. This flexibility allows the same receiver architecture to serve professional equipment, consumer audio products, and multi-input monitoring systems. The eight-input multiplexer also helps reduce the number of separate receiver devices required in a rack or board with several S/PDIF or AES/EBU sources. The monolithic CMOS implementation integrates receiver and decoding functions in one device. According to the Cirrus Logic CS8416 datasheet DS578F4, the device receives one of eight stereo pairs of digital-audio data and supports the IEC60958, S/PDIF, EIAJ CP1201, and AES3 standards. The output architecture provides a serial digital-audio port, while control and channel-status functions support practical system implementation. Typical applications include professional digital mixers, multichannel recording equipment, broadcast consoles, surround-sound processors, digital audio routers, computer-audio interfaces, and consumer receivers with multiple coaxial or optical inputs. The 192 kHz capability also makes the part relevant to high-resolution audio paths, provided that the upstream source, transport wiring, clocking arrangement, and downstream converter support the selected rate. PCB design should preserve short, controlled-impedance routes from each digital-audio input to the receiver and keep the serial output path away from noisy switching nodes. Grounding and decoupling should follow the layout guidance in the manufacturer datasheet. Verify input levels, supported sampling rates, master-clock requirements, and software configuration before finalizing a multichannel board because those details determine whether a single CS8416 is sufficient. This page combines the CS8416 interface architecture, protocol support, package information, application guidance, and verified sourcing information. It also distinguishes documented functions from unresolved replacement questions, helping engineers plan receiver selection, board integration, and multi-channel audio routing without treating nonverified equivalents as drop-in devices.
CS8420-CSZ Stereo Audio Sample-Rate Converter | Cirrus Logic
The Cirrus Logic CS8420-CSZ is a two-channel digital audio sample-rate converter with AES3-type and serial digital audio inputs, AES3-type and serial digital audio outputs, and a 4-wire microcontroller control interface. The converter is packaged in a 28-pin SOIC and operates from a 4.75 V to 5.25 V supply. It is designed for systems that must convert digital audio streams between sampling rates while supporting S/PDIF, AES3, and related serial audio formats. A digital audio sample-rate converter is a specialized interface IC that receives digital audio data at one sampling rate and reconstructs a corresponding output stream at another sampling rate. This capability sits between digital audio interfaces and the broader signal-chain hierarchy of digital audio processing, interface conversion, and semiconductor signal conditioning. Unlike a linear voltage regulator, the CS8420 does not regulate power; it processes and reconstructs digital audio data using clocking, filtering, and serialization circuitry. The CS8420 supports AES3-type and serial digital audio inputs together with AES3-type and serial digital audio outputs. Its serial digital audio ports use a three-wire interface, while configuration is handled through a four-wire microcontroller port. These functions make the device applicable in professional audio equipment, digital mixers, consumer audio systems, and other products requiring asynchronous sample-rate conversion. Familiarity with the AES3 and IEC60958 specifications is assumed for system-level design. The CS8420-CSZ is identified as a consumer-circuit device and is offered in a 28-pin SOIC with a 0.300 inch lead pitch. Its rectangular gull-wing surface-mount package supports conventional PCB assembly and routing. The manufacturer documentation describes the main functional blocks and supply connections, providing the basis for evaluating clock sources, digital-audio routing, control firmware, and power-supply implementation before schematic capture. Typical uses include conversion between asynchronous digital-audio domains, S/PDIF-compatible equipment, digital mixers, and multi-format audio interfaces. In these systems, the converter can bridge incoming AES3 or serial audio with an output domain operating at a different sampling rate. The microcontroller interface allows the host processor to select operating modes and monitor converter behavior, although the complete control register set must be implemented from the manufacturer datasheet. When laying out a CS8420-CSZ board, treat the digital-audio traces as potentially high-speed signals and follow the connection and layout guidance in the manufacturer datasheet. Keep the supply and external connections close to their intended circuit roles, provide the required bypassing, route clocks away from sensitive audio paths, and confirm that connector, transformer, and receiver choices support the selected AES3 or IEC60958 interface. This page organizes the available CS8420-CSZ technical information with package details, verified drop-in alternatives, comparison criteria, and practical design guidance. It is intended to help engineers identify interface requirements, plan PCB implementation, and source an exact MPN without overlooking the distinction between digital audio conversion, clocking, and general-purpose signal processing.
CS8427-CS - 96 kHz Stereo Digital Audio Transceiver | Cirrus Logic
The Cirrus Logic CS8427-CS is a 96 kHz stereo digital audio interface transceiver with AES3 and serial digital audio inputs, AES3 and serial digital audio outputs, and comprehensive control through a 4-wire microcontroller port. It is identified in distributor data as a one-channel audio transceiver in a 28-pin SOIC package, making it suitable for digital audio routing, format conversion, and embedded audio systems. A digital audio transceiver is an interface IC that accepts digital audio signals, manages the associated clock and control information, and provides corresponding digital outputs. In the broader signal-chain hierarchy, the CS8427-CS belongs to the digital audio interface family within audio and communications ICs, rather than to analog amplifiers or conventional power-management devices. The verified manufacturer information identifies AES3 inputs and outputs, serial digital audio input and output paths, and a 4-wire microcontroller control interface. The control port supports communication with an external controller, while the digital audio paths provide the core conversion and routing function. The CS8427 family is documented in 28-pin SOIC and TSSOP packages, with commercial and automotive temperature-grade variants listed in the manufacturer datasheet listing. The CS8427-CS is particularly relevant to professional audio, consumer audio, and digital-audio equipment designs that require transparent handling of digital audio streams. Its 96 kHz designation identifies the intended digital audio operating class, while the combination of AES3 and serial audio connections allows the device to sit between source and destination interfaces. The 4-wire control port also supports configuration and status monitoring by a host microcontroller. When designing a board around the CS8427-CS, verify the exact pin function, supply requirements, clock topology, and control-port implementation against the manufacturer datasheet before layout release. The verified distributor result confirms the 28-SOIC package, but the supplied snippets do not expose a complete pin table, so individual pin assignments should be taken directly from the CS8427 datasheet rather than inferred from the package designation. This page combines verified distributor and manufacturer-datasheet references, same-family replacement data, package information, and practical selection guidance. It is intended to help engineers identify the correct CS8427-CS ordering code and assess whether a same-family CS8427 variant is appropriate for a production redesign.
CS8427-CSR - 96 kHz Stereo Digital Audio Transceiver | Cirrus Logic (Tape & Reel)
The Cirrus Logic CS8427-CSR is a 96 kHz stereo digital audio interface transceiver with AES3 and serial digital audio inputs, AES3 and serial digital audio outputs, and comprehensive control through a 4-wire microcontroller port. It is identified in distributor data as a one-channel audio transceiver in a 28-pin SOIC package, making it suitable for digital audio routing, format conversion, and embedded audio systems. A digital audio transceiver is an interface IC that accepts digital audio signals, manages the associated clock and control information, and provides corresponding digital outputs. In the broader signal-chain hierarchy, the CS8427-CSR belongs to the digital audio interface family within audio and communications ICs, rather than to analog amplifiers or conventional power-management devices. The verified manufacturer information identifies AES3 inputs and outputs, serial digital audio input and output paths, and a 4-wire microcontroller control interface. The control port supports communication with an external controller, while the digital audio paths provide the core conversion and routing function. The CS8427 family is documented in 28-pin SOIC and TSSOP packages, with commercial and automotive temperature-grade variants listed in the manufacturer datasheet listing. The CS8427-CSR is particularly relevant to professional audio, consumer audio, and digital-audio equipment designs that require transparent handling of digital audio streams. Its 96 kHz designation identifies the intended digital audio operating class, while the combination of AES3 and serial audio connections allows the device to sit between source and destination interfaces. The 4-wire control port also supports configuration and status monitoring by a host microcontroller. When designing a board around the CS8427-CSR, verify the exact pin function, supply requirements, clock topology, and control-port implementation against the manufacturer datasheet before layout release. The verified distributor result confirms the 28-SOIC package, but the supplied snippets do not expose a complete pin table, so individual pin assignments should be taken directly from the CS8427 datasheet rather than inferred from the package designation. This page combines verified distributor and manufacturer-datasheet references, same-family replacement data, package information, and practical selection guidance. It is intended to help engineers identify the correct CS8427-CSR ordering code and assess whether a same-family CS8427 variant is appropriate for a production redesign.