CS4222-DS - 20-Bit Stereo Audio Codec | Cirrus Logic
부품 번호: CS4222-DS ✓ 활성CS4222-DS 개요
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.
드롭인 대체품: CS4222-DS — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 제품에는 사용 가능한 드롭인 대체품이 없습니다.
대체품 요청CS4222-DS 최대 정격 & 전기적 특성
| Converter Resolution | 20 bit |
| Audio Channel Configuration | Stereo |
| Analog Input Channels | 2 channels |
| Analog Output Channels | 4 differential outputs: 2 stereo channels |
| Volume Control Channels | 4 channels |
| Conversion Architecture | Delta-sigma conversion |
| 공급 전압 | +5 V |
| Output Buffering | On-chip differential buffer amplifier |
| Differential Output Load Capability | 10 kW |
| Nominal Single-Ended Output | 2.83 Vpp (1 Vrms) per output at full-scale digital input |
| Nominal Differential Output | 5.66 Vpp (2 Vrms) per channel |
| Output Common-Mode Voltage | 2.3 V |
| 패키지 | 28-pin SSOP |
| 실장 유형 | Surface mount |
| Product Type | Stereo audio codec with integrated volume control |
| Manufacturer | Cirrus Logic |
| RoHS 상태 | Compliant |
CS4222-DS 28-pin ssop 핀 구성 가이드
CS4222-DS(28-pin ssop 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: CS4222-DS.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
CS4222-DS 적합 용도: 6 애플리케이션s: Stereo USB Audio Interface, Digital-Audio Mixer, Powered Speaker Interface, Home Audio Preamp, Industrial Audio Monitoring, Multimedia Recording Card.
Stereo USB Audio Interface
The CS4222-DS is appropriate for a stereo USB audio interface when the design needs an analog recording and playback path around a +5 V supply. Its 20-bit stereo ADC and DAC provide the conversion functions, while four-channel volume control supports system-level level management. The manufacturer datasheet specifies differential outputs at 2.83 Vpp per side, 2 Vrms differentially, with a 2.3 V common-mode voltage. In implementation, the analog input network feeds the stereo converters, and the differential outputs connect to the line-output stage. The main engineering trade-off is that the 28-pin SSOP requires careful mixed-signal routing: digital interface traces should remain away from converter inputs, and grounding should prevent codec current from disturbing the low-level analog path.
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Digital-Audio Mixer
A digital mixer can use the CS4222-DS when a stereo, line-level path requires both conversion and integrated attenuation. The codec's 20-bit resolution, delta-sigma ADC and DAC sections, and four-channel volume control reduce the number of separate conversion and level-control blocks. According to the Cirrus Logic datasheet, the differential output stage provides a nominal 2 Vrms signal and can drive 10 kW loads. Designers can route the digital source into the DAC section, apply programmed volume control, and send the differential outputs to mixer routing or amplification circuitry. Layout remains the principal concern: maintain short analog traces, use the recommended output network, and keep switching-node and clock routing away from the stereo input and output paths.
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Powered Speaker Interface
The CS4222-DS can serve as the analog conversion and volume-management front end of a powered-speaker system operating from +5 V. Its stereo DAC produces differential outputs, and the 20-bit converter specification supports a conventional digital-audio source chain. The nominal 2 Vrms differential output and 2.3 V common-mode voltage provide a defined starting point for the downstream amplifier, while the on-chip buffer removes the need for an additional output buffer in some designs. Because the verified material does not state the CS4222 output-load suitability for every amplifier topology, the actual speaker amplifier input impedance must be checked against the manufacturer data. A clean analog ground and separated power path are important for preventing power-amplifier return current from modulating the codec output.
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Home Audio Preamp
The CS4222-DS fits a compact home-audio preamplifier that accepts digital sources and provides controlled line-level analog outputs. Integrated stereo ADC and DAC functions support bidirectional digital-audio routing, and the four-channel volume control can serve as the principal attenuation path. The 20-bit conversion format and nominal 2 Vrms differential output align with conventional consumer line-level signaling. Designers should preserve the recommended external filtering and output network from the manufacturer datasheet, while providing stable +5 V decoupling close to the device. The SSOP footprint also makes the codec practical for dense boards, but its fine pitch requires assembly-process control. Any additional microphone or balanced input stage should be evaluated separately because its input range is not documented in the supplied sources.
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Industrial Audio Monitoring
The CS4222-DS can be used in an industrial audio-monitoring subsystem when a +5 V stereo acquisition and playback path is required. Its 20-bit delta-sigma converters, differential outputs, and integrated volume control suit equipment that records analog sound and reproduces it through a monitoring channel. The confirmed 2 Vrms nominal differential output provides a defined interface to downstream amplification, while the 28-pin SSOP reduces board area relative to larger legacy packages. Deployment near motors, relays, or switching supplies requires especially careful grounding and filtering because the supplied data does not define an industrial noise-immunity level. Engineers should verify clocking, control firmware, analog input range, and board-level EMC performance before using the codec in a safety-critical or high-interference environment.
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Multimedia Recording Card
A multimedia recording card can use the CS4222-DS for analog stereo capture and digital-audio playback around a host interface. The device combines 20-bit ADC and DAC conversion, delta-sigma conversion techniques, four-channel volume control, and a single +5 V supply in one 28-pin SSOP. Its differential outputs are listed at a nominal 2 Vrms, which is suitable for many line-level input stages. In a practical board, host-interface logic should be placed away from the analog converter area, with local supply bypassing and controlled return paths. The codec should be paired with a host audio controller that supports its digital interface and control protocol; those protocol details are not present in the supplied verified snippets and must be obtained from the full manufacturer datasheet.
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추천 제품 요약
엔지니어링 참조 데이터: CS4222-DS — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 |
|---|---|
| Product Type | 20-bit stereo audio codec with volume control |
| Brand | Cirrus Logic |
| Package | 28-pin SSOP |
| Supply Voltage | +5 V |
| Converter Resolution | 20 bit |
| Conversion Architecture | Delta-sigma conversion |
| Nominal Differential Output | 5.66 Vpp (2 Vrms) |
| Output Common-Mode Voltage | 2.3 V |
| Differential Output Load Capability | 10 kW |
| Verified Unit Price | $3.9742 as of 2026-10-28 |
주요 차별점
- Integrated conversion and volume management (vs CS4216-KL)
- Differential analog output architecture (vs CS4297-JQ)
- Confirmed 28-pin SSOP implementation (vs AK4116VF)
설계 노트
Separate the analog converter area from digital interface and clock routing on the PCB. Place the recommended bypass capacitors close to the +5 V supply pins and use the manufacturer application diagram for external input and output components. Keep codec and digital-interface return currents out of the analog output reference path so switching activity does not appear as differential output noise.
Preserve the differential output arrangement for AOUTL+, AOUTL-, AOUTR+, and AOUTR-. The manufacturer datasheet identifies a nominal 2.83 Vpp per output side and 2.3 V common-mode voltage. Match pair routing where practical, avoid long unprotected analog traces, and follow the recommended off-chip network rather than adding arbitrary capacitance that could alter stability or output bandwidth.
Do not treat another stereo codec as a drop-in replacement solely because its resolution or function resembles the CS4222. A valid substitution requires the same 28-pin SSOP footprint, matching pin assignments, compatible +5 V operation, equivalent digital control, and acceptable analog timing. The verified search results did not establish a confirmed drop-in alternative, so use the original MPN unless a candidate passes all of those checks.
규정 준수 정보
The verified Lisleapex product listing describes the CS4222-DS as RoHS compliant. No verified REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statement was supplied.
