CS4216-KL - 16-Bit Stereo Audio Codec | Cirrus Logic
MPN： CS4216-KL ✗ 停產CS4216-KL 概覽
An audio codec is a mixed-signal interface IC that converts audio between analog and digital domains. Its hierarchy is audio codec, multimedia codec, analog-to-digital and digital-to-analog converter, interface IC, and semiconductor. The CS4216 combines those functions so a digital computer system can accept analog audio sources, process samples digitally, and reproduce them through analog outputs without separate converter packages.
Key capabilities include 16-bit stereo conversion, four analog inputs, two analog outputs, integrated interpolation and filtering functions, and a shared serial data interface. The CS4216 family targets computer multimedia, automotive, and portable audio equipment. Its integrated filtering and level-setting functions simplify board partitioning, while its multiplexed digital bus reduces the number of interconnects required between the codec and host or digital-audio controller.
Technically, the monolithic CMOS implementation combines two conversion channels with shared digital serialization. Interpolation filters suppress unwanted high-frequency content and reduce aliasing in the reconstruction path, while the digital interface carries both stereo channels using word rates up to 50 kHz. The 44-pin PLCC offers a surface-mount package with J-lead termination and a body size of 16.59 mm by 16.59 mm.
Typical uses include desktop and notebook multimedia audio, portable-audio equipment, automotive audio systems, and embedded systems requiring simultaneous analog capture and playback. In these applications, the four inputs can serve microphones, line-level sources, or other analog audio points, while the two outputs feed downstream amplifiers or audio routing stages. Host connectivity still requires correct timing, format, and signal-level design.
The main design consideration is package and signal planning. Because the converter is a 44-pin PLCC rather than a modern leadless package, its footprint has limited long-term layout flexibility. Board layout should preserve analog and digital return paths, provide suitable bypassing, and follow the manufacturer's pin and reference-circuit guidance rather than assuming a generic codec footprint.
This page consolidates the verified CS4216-KL identity, package, converter topology, application fit, and verified drop-in alternatives. It also distinguishes documented capabilities from parameters that still require confirmation from the manufacturer datasheet or a live distributor quotation.
直接替換替代品，適用於 CS4216-KL — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
CS4216-KQ
✅ 直接替換📋 參考替代品（不在目錄中）
CS4216
✅ 直接替換📋 參考替代品（不在目錄中）
CS4216-KLZ
✅ 直接替換📋 參考替代品（不在目錄中）
CS4216-KL 最大額定值與電氣特性
| Product Type | 16-bit stereo audio codec |
| Converter Resolution | 16 bit |
| Channel Count | 2 channels |
| Analog Inputs | 4 inputs |
| Analog Outputs | 2 outputs |
| Maximum Audio Word Rate | 50 kHz |
| Integrated Functions | A/D conversion, D/A conversion, filtering, and level setting |
| Digital Interface | Single multiplexed serial data bus |
| Process Technology | Monolithic CMOS |
| 封裝 | 44-pin PLCC |
| Package Body Size | 16.59 mm x 16.59 mm |
| 安裝類型 | Surface mount |
| Termination Type | J-lead |
| Primary Application | Computer multimedia audio |
| Additional Applications | Automotive audio and portable audio |
| Manufacturer | Cirrus Logic |
CS4216-KL 16.59 mm x 16.59 mm 腳位配置指南
CS4216-KL（16.59 mm x 16.59 mm 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： CS4216-KL.
請參閱 資料表 以查看完整腳位配置。
典型應用
CS4216-KL 適用於 7 應用s: Desktop Computer Multimedia Audio, Notebook Computer Audio, Portable Audio Equipment, Automotive Audio Interface, USB Audio Accessory, Analog Audio Mixing and Playback, Industrial Multimedia Control Panel.
Desktop Computer Multimedia Audio
The CS4216-KL fits legacy desktop and notebook audio subsystems because it combines 16-bit stereo conversion with four analog inputs, two analog outputs, filtering, and level setting in one codec. Its single multiplexed serial data bus reduces host-interface wiring compared with separate left- and right-channel paths. The verified maximum word rate of 50 kHz supports the device's stated computer-multimedia use case. Board implementation should follow the manufacturer reference circuit, including its 44-pin PLCC footprint and recommended analog bypassing.
推薦
Notebook Computer Audio
The CS4216-KL's four analog inputs and two analog outputs allow a notebook audio subsystem to combine capture and playback without separate monolithic converter packages. Its integrated filtering, level setting, and 16-bit stereo conversion are especially useful where board area is constrained, while the shared serial bus connects to a compatible host or audio controller. Designers should verify the legacy PLCC footprint, connector routing, ground partitioning, and software-driver expectations before adopting it in a new notebook platform.
推薦
Portable Audio Equipment
The CS4216-KL is identified by the manufacturer for portable-audio systems and integrates conversion, filtering, and level setting into one 16-bit stereo codec. Its four inputs and two outputs support compact analog-audio routing, while the multiplexed serial bus limits digital interconnect count. For battery-powered equipment, however, engineers must confirm supply voltage, standby consumption, analog performance, and thermal behavior from the full datasheet because those numerical values were not present in the verified excerpts.
推薦
Automotive Audio Interface
The CS4216 family supports automotive audio applications by providing a consolidated 16-bit stereo codec with four analog inputs, two analog outputs, filtering, and level setting. This can simplify an automotive head-unit or interface design that must manage several analog sources and playback channels. Before adopting the CS4216-KL, verify its ordering-code temperature grade, automotive qualification, supply range, and noise performance; AEC-Q100 status is not established by the supplied web excerpts and cannot be assumed.
推薦
USB Audio Accessory
A USB audio accessory can use the CS4216-KL for analog-to-digital and digital-to-analog conversion while a USB controller manages the host link. The codec's four inputs can accommodate line-level or microphone-oriented sources, and the two outputs can feed an analog output stage; the manufacturer's integrated filtering and level setting reduce external support circuitry. The 44-pin PLCC package requires careful analog isolation from USB and digital clock paths, and a new design may favor smaller modern codecs.
推薦
Analog Audio Mixing and Playback
The CS4216-KL's four analog inputs and two outputs are useful in compact source-selection and playback designs where several analog sources must be captured or routed. Integrated level setting and filtering support a cleaner analog architecture than separate loose converter blocks, while 16-bit stereo conversion preserves the device's intended multimedia role. Engineers should follow the datasheet mixer and gain-control implementation because the supplied excerpts do not provide individual channel-gain ranges, input impedance, or output-headroom values.
推薦
Industrial Multimedia Control Panel
An industrial multimedia panel can use the CS4216-KL to handle announcement, microphone, or line-level audio while retaining two stereo playback outputs. The device's 16-bit resolution and integrated filtering are suitable for legacy multimedia-control architectures, and its shared serial data bus simplifies the connection to an embedded controller. Industrial suitability must be checked against the exact temperature grade, supply requirements, EMC constraints, and long-term availability, none of which are fully documented in the supplied excerpts.
推薦
推薦產品摘要
工程參考資料，適用於 CS4216-KL — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | CS4216-KQ | CS4216 | CS4216-KLZ | CS4216-KL |
|---|---|---|---|---|---|
| Brand | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic |
| Package | 44-pin PLCC | 44-pin PLCC | 44-pin PLCC | 44-pin PLCC | 44-pin PLCC |
| Product Type | 16-bit stereo audio codec | CS4216-family audio codec | 16-bit stereo audio codec | CS4216-family audio codec | 16-bit stereo audio codec |
主要差異化特點
- Four inputs and two outputs are integrated into one stereo codec (對比CS4216)
- Single multiplexed serial bus simplifies digital interconnection (對比CS4216-KQ)
- The family targets both multimedia and automotive audio use cases (對比CS4216-KLZ)
設計說明
Design the PCB around the verified 44-pin PLCC footprint, including its J-lead body and land pattern. Do not substitute a generic QFP or LQFP library symbol. Because the CS4216-KL is a legacy PLCC device, validate the land pattern, solder paste volume, component clearance, and hand-soldering plan before release. The supplied excerpts establish the 16.59 mm by 16.59 mm body size but do not reproduce the manufacturer land-pattern drawing.
Separate analog inputs, analog outputs, and codec ground-current paths from noisy digital and clock-return paths. Place the manufacturer's recommended input, output, reference, and bypass capacitors directly at the associated pins, and keep the multiplexed serial bus away from sensitive analog nodes. The verified excerpts confirm that analog and digital functions share one device, making intentional return-path management essential.
Do not treat CS4216, CS4216-KL, CS4216-KQ, and CS4216-KLZ as automatically interchangeable. Ordering suffixes can encode grade, temperature, or packaging information that is not visible in the supplied snippets. Before substituting a suffix, compare the manufacturer ordering table, pin functions, electrical limits, timing, and qualification. Also verify the host clock and serial-data format because the codec multiplexes left and right channels on one bus.
合規資訊
The verified excerpts do not provide definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. The automotive application is stated, but qualification of the exact ordering suffix must be confirmed from manufacturer documentation.
