WM8985CGEFL Stereo Audio Codec | Cirrus Logic | 32-QFN
部品番号: WM8985CGEFL ✓ 生産中WM8985CGEFL 概要
A multimedia codec is an integrated audio interface IC that converts between digital audio streams and analog audio signals while providing control and signal-conditioning functions for speakers, headphones, microphones, and line-level circuitry. The WM8985CGEFL sits within the broader hierarchy of audio codec, audio interface IC, multimedia IC, and semiconductor.
The WM8985CGEFL is identified in distributor listings as a stereo audio interface supporting 24-bit I2S and PCM formats. Its 32-QFN (5x5 mm) package supports high-density PCB layouts and is suitable for portable equipment, consumer audio products, communications equipment, and embedded audio platforms. The listing also identifies Class D headphone-driver support as a key feature for applications requiring efficient headphone amplification.
The 5x5 mm QFN format can help reduce board area compared with larger leaded packages, but exposed-pad thermal management and careful PCB layout remain important. Decoupling capacitors should be placed close to the device power pins, while analog and digital ground and power connections should follow the manufacturer pin-description and layout guidance. Signal-routing decisions should also account for the 24-bit audio path and the separation of analog and digital sections.
Typical uses include USB and embedded audio accessories, portable media equipment, communications terminals, smart-device audio paths, and compact headphone interfaces. A system designer should confirm the complete electrical limits, clocking requirements, supported sample rates, analog input/output limits, and pin-level connections against the manufacturer datasheet before releasing a PCB.
This product page consolidates the exact WM8985CGEFL package and interface information into a structured component record. It also identifies the intended codec use cases and distinguishes the documented part from unsupported substitute claims.
When replacing an existing WM8985CGEFL, verify the complete 32-pin land pattern, exposed-pad connection, digital audio format, clock configuration, analog biasing, and supply sequencing rather than relying on the codec function alone. A functionally similar audio codec is not automatically a pin-to-pin drop-in replacement.
ドロップイン代替品: WM8985CGEFL — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストWM8985CGEFL 最大定格＆電気的特性
| Product Type | Stereo audio interface and multimedia codec |
| Manufacturer | Cirrus Logic |
| Digital Audio Resolution | 24 bit |
| Digital Audio Interface | I2S, PCM |
| Channel Configuration | Stereo |
| Headphone Driver | Class D headphone amplifier |
| パッケージ | 32-QFN (5x5 mm) |
| 実装タイプ | Surface mount |
| ピン数 | 32 pins |
| Manufacturer Product Category | Codecs, Multimedia CODEC |
| Digital Audio Data Format | I2S and PCM |
| Analog Audio Function | Stereo audio signal conversion |
| Output Function | Class D headphone output |
WM8985CGEFL 32-qfn (5x5 mm) ピン配置ガイド
WM8985CGEFL (32-qfn (5x5 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: WM8985CGEFL.
詳細は データシート をご参照ください。
主な用途
WM8985CGEFL の用途: 6 件s: Portable Headphone Audio, USB Audio Accessory, Communications Terminal, Embedded Audio Control Panel, Smart Device Audio Module, Digital Audio Evaluation Platform.
Portable Headphone Audio
The WM8985CGEFL fits portable headphone products that receive 24-bit I2S or PCM digital audio from a host processor. It combines a stereo audio interface with Class D headphone-driver functionality in a 32-QFN (5x5 mm) package, reducing the number of separate audio-path devices and conserving board area. The design should verify the required headphone power, load impedance, analog signal levels, and supply rails against the manufacturer electrical data before selecting passive networks and protection components.
おすすめ
USB Audio Accessory
The WM8985CGEFL is suitable for a compact USB audio accessory in which a digital audio controller streams I2S or PCM data into a stereo codec. Its documented 24-bit digital audio support and integrated headphone-driver function cover the central signal-conversion stage for headphones or line-level output. Layout must keep clock and data traces short, provide local decoupling, and maintain the separation between sensitive analog and digital sections described by the manufacturer.
おすすめ
Communications Terminal
The WM8985CGEFL can support headset-audio monitoring in a communications terminal by accepting a digital PCM or I2S stream and providing stereo conversion with Class D headphone drive. Its 32-QFN (5x5 mm) package supports compact, high-density layouts where board area is constrained. Before implementation, verify speaker or headphone loading, voice-path routing, microphone requirements, echo-cancellation needs, and regulatory limits that may require circuitry beyond the codec.
おすすめ
Embedded Audio Control Panel
The WM8985CGEFL suits an embedded control panel or industrial audio interface that receives serial digital audio from an application processor. The 24-bit I2S or PCM interface provides a clear digital-audio handoff, while the integrated stereo codec and headphone-driver capability can serve local monitoring. Engineers should confirm supported clock rates, master-versus-slave operation, control-interface timing, analog reference requirements, and the exposed-pad layout before beginning PCB implementation.
おすすめ
Smart Device Audio Module
The WM8985CGEFL is appropriate for a smart-device audio module that connects a digital-audio host to compact headphones or an onboard audio output. The 32-QFN package reduces board footprint, while 24-bit I2S and PCM formats allow integration with common embedded audio buses. The design should account for wireless-module interference, microphone and speaker coupling, headroom, pop-noise control, and thermal performance of the headphone stage under sustained maximum-output conditions.
おすすめ
Digital Audio Evaluation Platform
The WM8985CGEFL can serve as the audio codec on a digital-audio evaluation platform driven by an FPGA, MCU, or dedicated USB audio controller. Its documented I2S and PCM support enables repeatable testing of digital streams, conversion paths, and headphone output behavior. Evaluation-board users should preserve the manufacturer's recommended supply, filtering, clocking, and grounding arrangements, and compare measured audio performance against the limits stated in the official datasheet.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: WM8985CGEFL — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
設計ノート
Treat the WM8985CGEFL 32-QFN layout as a high-density mixed-signal design. Place power-decoupling capacitors at the pins specified by the manufacturer datasheet, keep analog and digital return paths disciplined, and route the 24-bit I2S or PCM clock and data lines away from sensitive headphone-output nodes. Verify the exposed-pad connection and land pattern against the official package drawing before releasing Gerber files.
Confirm the codec's supported supply rails, headphone-driver operating conditions, power-up sequence, and load impedance before selecting the headphone path. The presence of a Class D driver does not by itself establish suitability for every headset, and analog and digital supplies may have different sequencing or filtering requirements. Use the manufacturer electrical characteristics as the controlling reference for rail tolerances and decoupling values.
Do not substitute a generic stereo codec merely because both devices use a QFN package. Pin compatibility requires matching land geometry, exposed-pad behavior, power pins, control signals, clock inputs, analog functions, and headphone-output capabilities. If continuity or supply sequencing differs, the replacement requires schematic and PCB review even when its advertised resolution and interface format appear equivalent.
コンプライアンス情報
Compliance status is not stated in the component records. Confirm RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification requirements with Cirrus Logic or the current manufacturer documentation.
