WM8740SEDS/V - 24-Bit 192 kHz Stereo DAC | Cirrus Logic
部品番号: WM8740SEDS/V ✓ 生産中WM8740SEDS/V 概要
An audio DAC is a data-converter IC that transforms digital audio samples into analog voltages suitable for headphone, line-level, or power-amplifier inputs. Within the broader semiconductor hierarchy, it belongs to the ADC/DAC class of data converters and ultimately to the wider signal-chain and audio-processing ecosystem. The WM8740SEDS/V combines high-resolution conversion, stereo output, serial digital control, and separate analog and digital supply domains in one integrated device.
The principal specifications are 24-bit resolution, a maximum sampling rate of 192 kHz, two audio channels, an SPI interface, and a 3.3 V to 5 V supply range. Its operating-temperature range extends from -40°C to +85°C, allowing deployment in consumer, industrial, and professional audio products. The 28-SSOP package supports conventional surface-mount assembly and is available in the WM8740SEDS/V ordering configuration.
The converter architecture is optimized for high-performance stereo playback rather than general-purpose signal conversion. Digital audio data enters through the serial interface and is converted into left- and right-channel analog outputs. Supporting the full 192 kHz sampling rate makes the device relevant to studio-quality playback, network audio, digital preamplifiers, and compact hi-fi systems where a conventional lower-rate converter would restrict source compatibility.
Typical applications include high-end CD and network-audio players, professional digital mixers, headphone amplifier boards, powered speakers, and digital audio preamplifiers. In each case, the dual-channel architecture provides simultaneous left and right conversion, while the 192 kHz capability supports high-resolution source material. The SPI control interface also allows a host processor or audio interface controller to configure operating modes and retrieve device status.
Circuit implementation requires careful treatment of the analog and digital supply rails. Place required decoupling capacitors close to their associated pins, maintain a low-impedance ground return for the analog outputs, and route digital control signals away from sensitive analog output nodes. The output network, amplifier coupling capacitors, and grounding topology should follow the reference circuit and layout guidance in the manufacturer datasheet.
This page organizes the WM8740SEDS/V specifications, sourcing information, qualified drop-in candidate, comparison fields, and application guidance into a design-focused reference. It also highlights which compatibility details must be checked against the manufacturer datasheet before a board revision or production substitution is approved.
ドロップイン代替品: WM8740SEDS/V — 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。
WM8741SEDS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
WM8740SEDS/V 最大定格＆電気的特性
| Device Type | Stereo audio digital-to-analog converter |
| 分解能 | 24 bit |
| Number of Channels | 2 channels |
| Maximum Sampling Rate | 192 kHz |
| Data Interface | SPI |
| Analog Supply Voltage | 3.3 V to 5 V |
| Digital Supply Voltage | 3.3 V to 5 V |
| 動作温度 | -40°C to +85°C |
| パッケージ | 28-pin SSOP |
| Package Width | 5.30 mm |
| Package Length | 0.209 inch |
| 実装タイプ | Surface mount |
| Part Status | Active |
WM8740SEDS/V 0.209 inch ピン配置ガイド
WM8740SEDS/V (0.209 inch パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: WM8740SEDS/V.
詳細は データシート をご参照ください。
主な用途
WM8740SEDS/V の用途: 6 件s: High-End Digital Audio Player, Professional Headphone Amplifier, Digital Audio Preamplifier, Network Audio Player, Studio Monitor Controller, Powered Speaker USB Audio Interface.
High-End Digital Audio Player
The WM8740SEDS/V fits a high-end digital audio player because its 24-bit resolution and 192 kHz maximum sampling rate preserve high-resolution source data through the digital-to-analog conversion stage. Its two-channel architecture produces simultaneous left and right analog outputs for the following analog volume, line-output, or headphone-amplifier section. The 3.3 V to 5 V operating range also permits integration with common digital-audio supply rails. Use the manufacturer reference circuit for the output network, clocking arrangement, and analog and digital decoupling so the converter operates within its intended performance envelope.
おすすめ
Professional Headphone Amplifier
The WM8740SEDS/V can serve as the digital front end of a professional headphone amplifier when the source delivers PCM audio through its SPI interface. Two 24-bit channels at up to 192 kHz support high-resolution stereo material, while the separate analog and digital supply domains help organize the converter and downstream amplifier sections. The analog outputs should feed a low-noise voltage-amplifier or balanced driver stage. Follow the manufacturer output configuration and layout guidance to minimize distortion, channel imbalance, and interference from digital control signals.
おすすめ
Digital Audio Preamplifier
A digital preamplifier can use the WM8740SEDS/V to convert incoming digital audio into a pair of analog signals for downstream volume control and power amplification. Its 24-bit stereo format and 192 kHz sampling capability accommodate high-resolution music streams, disc-derived content, and broadcast sources when the host source provides a compatible clock and data stream. The SPI interface permits controlled integration with a digital audio processor. Validate supported sample rates, master-clock requirements, and digital-filter modes against the manufacturer datasheet before finalizing the transport architecture.
おすすめ
Network Audio Player
The WM8740SEDS/V is suitable for the conversion stage of a network audio player that accepts digital audio from a network receiver, computer, or streamer. Its 192 kHz maximum rate allows compatible high-resolution files to reach the analog output section without relying on a lower-rate converter. The two-channel structure matches conventional stereo playback, while the serial interface offers a straightforward path to a digital audio controller. Keep the converter’s digital section physically separated from the analog output routing, and implement the manufacturer-specified clocking and supply decoupling.
おすすめ
Studio Monitor Controller
The WM8740SEDS/V can form the digital-to-analog conversion section of a studio monitor controller that accepts digital sources and supplies analog signals to monitor amplifiers. Its 24-bit stereo conversion and 192 kHz capability support professional source formats, while the controlled SPI interface simplifies mode configuration from the system controller. Decoupling and grounding are particularly important in a monitor controller containing switching regulators and multiple digital domains. Route analog outputs away from noisy processors and use the manufacturer reference layout to preserve signal integrity from converter to output stage.
おすすめ
Powered Speaker USB Audio Interface
A USB-capable powered speaker can use the WM8740SEDS/V when its digital audio subsystem delivers compatible stereo PCM data over SPI. The converter supports 24-bit content at rates up to 192 kHz, enabling high-resolution playback while providing separate left and right analog outputs for the speaker amplifier. Its 3.3 V to 5 V operating range supports integration into multiple portable and desktop audio architectures. Confirm USB clock isolation, sample-rate conversion, channel assignment, and startup behavior in the complete digital subsystem before using the converter as the final output stage.
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: WM8740SEDS/V — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | WM8741SEDS |
|---|---|---|
| Brand | Cirrus Logic | Cirrus Logic |
| Package | 28-SSOP | 28-SSOP |
| Device Type | Stereo audio DAC | Stereo audio DAC |
主な差別化要因
- Established high-resolution stereo conversion performance （vs WM8741SEDS)
- Single integrated dual-channel converter （vs WM8741SEDS)
- Clear path for existing 28-SSOP designs （vs WM8741SEDS)
設計ノート
Place the analog and digital decoupling capacitors directly at their associated WM8740SEDS/V supply pins, using the capacitance and voltage ratings specified by the manufacturer. Keep each capacitor’s ground connection short and place it on the same board side as the IC when practical. Separate analog and digital return currents so switching-node energy does not flow through the reference ground used by the stereo outputs.
Route SPI clock, data, and control traces away from the analog output section, and keep the analog output traces short from the device to their passive networks and receiving amplifier. A solid analog ground plane should support the converter and output stage without digital routing beneath sensitive nodes. Preserve the manufacturer’s recommended component placement and keep test points and debug connectors away from the high-impedance analog output region.
Treat clock quality and digital-interface timing as part of the analog design because timing errors can produce modulation, glitches, or incorrect sample interpretation. Follow the manufacturer requirements for clock source, trace length, grounding, and supported operating modes. If the source device and converter sit on different boards, include a defined interface boundary, suitable termination, and an isolation strategy that prevents ground-potential differences from disturbing the converter.
Do not substitute the WM8741SEDS candidate solely because the family and package appear similar. Before changing an existing design, compare all 28 pin assignments, supported sampling rates, master-clock requirements, filter modes, de-emphasis behavior, register map, power-up sequence, output impedance, and analog output topology. A family-level pin-compatible statement does not establish register-for-register or electrically identical behavior, so board validation remains mandatory.
コンプライアンス情報
The manufacturer datasheet and product-page information available for this part do not provide definitive RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Confirm each status with the manufacturer before using the component in a regulated application.