WM8718SEDS/V - 24-Bit Stereo Audio DAC | Cirrus Logic
MPN： WM8718SEDS/V ✓ 啟用中WM8718SEDS/V 概覽
A DAC is a digital-to-analog converter, a signal-conversion integrated circuit that transforms sampled digital audio into an analog voltage suitable for amplification and loudspeaker output. Within the broader semiconductor hierarchy, the WM8718SEDS/V belongs to the ADC/DAC class of data-conversion ICs and ultimately to the integrated-circuit category. It provides the output-side conversion function in a digital audio signal chain, typically following a source, codec, decoder, or digital audio processor.
The manufacturer datasheet identifies the WM8718SEDS/V as a 24-bit DAC operating to 192 kHz with digital signal processing, I2S connectivity, differential stereo outputs, and volume control. These features distinguish it from basic fixed-output DACs: differential output architecture supports balanced audio routing, while integrated volume control allows output-level adjustment without relying exclusively on a separate analog attenuator. The I2S interface also provides a conventional connection to digital audio processors and application processors.
The 20-SSOP package supports compact, surface-mount PCB construction while exposing the required digital, analog, clock, and power connections. Because the converter handles both digital and analog signals, board implementation requires careful partitioning. The digital interface and clock signals should remain separated from the differential analog outputs, with the manufacturer’s recommended application circuit and pin description used as the basis for component placement and trace routing.
Typical uses include multichannel consumer-audio receivers, powered speakers, sound-bar signal paths, digital mixing consoles, portable listening equipment, and embedded audio systems that require a compact stereo DAC. The 192 kHz capability is useful when the source material and upstream signal path support that rate, although operating at the maximum rate generally requires correspondingly clean clocking, layout, and power delivery.
Designers should verify the required master clock, I2S word length, sample-rate configuration, output load, and external filtering against the manufacturer datasheet before layout release. Differential routing should be treated as a matched pair, and the analog return path should connect cleanly to the device ground reference. These controls help preserve channel balance and reduce distortion introduced by the PCB rather than by the converter itself.
This product page combines the exact manufacturer and distributor identifiers, organizes the documented conversion and interface capabilities, and adds application, comparison, replacement, and layout guidance. It is intended to help engineers narrow a DAC choice by resolution, sample rate, interface, package, output architecture, and assembly requirements before completing a production BOM.
直接替換替代品，適用於 WM8718SEDS/V — 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。
WM8718SEDS/RV
✅ 直接替換📋 參考替代品（不在目錄中）
WM8714SEDS/V
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
WM8716SEDS/V
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →WM8721SEDS/V
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
WM8722SEDS/V
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
WM8718SEDS/V 最大額定值與電氣特性
| Product Type | 24-bit differential stereo digital-to-analog converter |
| Converter Resolution | 24 bit |
| Maximum Sample Rate | 192 kHz |
| Digital Audio Interface | I2S |
| Digital Signal Processing | Supported |
| Output Architecture | Differential stereo |
| Volume Control | Integrated digital volume control |
| Number of DAC Channels | 2 channels |
| 封裝 | 20-SSOP |
| 安裝類型 | Surface mount |
| RoHS 狀態 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
WM8718SEDS/V 20-ssop 腳位配置指南
WM8718SEDS/V（20-ssop 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： WM8718SEDS/V.
請參閱 資料表 以查看完整腳位配置。
典型應用
WM8718SEDS/V 適用於 6 應用s: High-Resolution Consumer Audio Receiver, Powered Speaker and Amplifier Front End, Digital Mixing Console Signal Path, Portable Audio and Headphone Amplifier Front End, Network and Communication Audio Terminal, Digital Audio Test and Measurement Equipment.
High-Resolution Consumer Audio Receiver
The WM8718SEDS/V fits the final digital-to-analog stage of a receiver, television, or sound-bar design that accepts I2S audio. Its 24-bit conversion capability and operation up to 192 kHz provide headroom for high-resolution source material, while differential stereo outputs support a balanced connection to downstream analog circuitry. Integrated digital volume control can simplify signal-level adjustment and reduce the need for a separate control device in the audio path. The 20-SSOP package also supports compact surface-mount layouts. Designers should match the converter’s clock and interface requirements to the audio processor, preserve matched routing for each differential channel, and implement the manufacturer-recommended output filtering for stable, low-distortion analog output.
推薦
Powered Speaker and Amplifier Front End
The WM8718SEDS/V can provide the conversion stage immediately before a stereo power amplifier in a powered speaker, active bookshelf speaker, or compact monitor system. I2S input supports connection to a digital audio host, and the converter’s 24-bit resolution and 192 kHz maximum sample rate support high-resolution playback architectures. Differential outputs are useful when the downstream amplifier accepts balanced signals, helping preserve channel balance and reject coupled noise on the analog path. The device’s integrated volume control supports system-level output adjustment, although the final gain structure must prevent clipping. Confirm the master-clock mode, I2S alignment, permitted sample rates, and external reconstruction filter against the manufacturer circuit before PCB release.
推薦
Digital Mixing Console Signal Path
The WM8718SEDS/V is suitable for a digital mixer or studio monitoring path that uses an I2S source and requires a compact stereo DAC stage. The 24-bit conversion format and operation to 192 kHz align with high-resolution multichannel audio workflows, while differential outputs can feed balanced monitoring or line-level circuitry. Digital volume control offers a convenient level-control point downstream of digital processing. Because studio systems are sensitive to clock jitter, grounding, and channel matching, the implementation should follow the manufacturer’s layout guidance and use matched output routing. External filtering and output loading must also conform to the datasheet reference circuit. The converter should be positioned so clock and digital traces remain isolated from the sensitive differential analog outputs.
推薦
Portable Audio and Headphone Amplifier Front End
The WM8718SEDS/V can serve as the digital conversion stage in a portable audio product, wireless speaker, or headphone-amplifier front end that receives I2S data from a host processor. The compact 20-SSOP package supports space-constrained assemblies, and the 24-bit, 192 kHz-capable converter allows the same architecture to support high-resolution source formats. Differential outputs can feed a balanced headphone driver or line stage, while integrated digital volume control supports system-level adjustment. The primary design concern is power integrity because digital switching and analog output circuitry share a small board area. Keep the I2S and clock traces away from the differential outputs, provide local supply bypassing as specified, and confirm output swing, load, and filtering requirements for the selected headphone or line driver.
推薦
Network and Communication Audio Terminal
The WM8718SEDS/V fits communication terminals and networked audio products that receive digital audio over an I2S link and need a high-resolution analog stereo output. The interface supports connection to digital signal processors, communication processors, or application processors, while the 192 kHz maximum sample rate provides support for high-rate audio streams. Differential stereo outputs can feed line receivers or amplifiers, and integrated volume control simplifies output attenuation. In a network product, clock integrity and electromagnetic interference control remain important because high-speed digital activity can couple into the analog output stage. Route the I2S and clock nets as compact, controlled-impedance paths, keep analog traces away from digital activity, and use the manufacturer’s grounding and filtering arrangement. Confirm that the host supplies the exact clock and data format required by the converter.
推薦
Digital Audio Test and Measurement Equipment
The WM8718SEDS/V can be used in audio test equipment, signal generators, and digital audio analyzers that convert stored or synthesized I2S data into analog waveforms. Its 24-bit resolution and operation up to 192 kHz are useful for precision signal-generation and measurement tasks, while the differential output can improve rejection of ground noise in a sensitive test fixture. Integrated volume control provides an additional output-variable control for calibration setups. Instrumentation designs must still assess noise, distortion, linearity, and clock performance against the manufacturer limits before claiming measurement accuracy. Use a clean analog reference, follow the recommended output-filter network, and treat the differential pair as a matched signal path. This configuration is most appropriate when the test system already supplies compatible digital audio clocks and data.
推薦
推薦產品摘要
工程參考資料，適用於 WM8718SEDS/V — 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 | WM8718SEDS/RV | WM8714SEDS/V | WM8716SEDS/V | WM8721SEDS/V | WM8722SEDS/V |
|---|---|---|---|---|---|---|
| Package | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP | 20-SSOP |
| Brand | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic |
主要差異化特點
- Exact same-family ordering option with the closest procurement path (對比WM8718SEDS/RV)
- Differential stereo output with integrated level adjustment (對比WM8714SEDS/V)
- High-resolution I2S conversion with digital signal processing (對比WM8716SEDS/V)
設計說明
Partition the PCB so the I2S data, clock, and control traces remain on the digital side of the converter while each differential analog output remains on the analog side. Route the positive and negative conductor of each channel as a matched pair, avoid crossing digital activity beneath the analog outputs, and minimize loop area around the output-filter network. Use the manufacturer application circuit and pin-description table as the authoritative basis for separating analog and digital return paths.
Follow the manufacturer’s recommended analog and digital supply connections and place local bypass capacitors next to the associated device pins. Keep switching-regulator and high-current return paths away from the DAC’s sensitive analog-output region. Because the listed specifications establish 24-bit conversion up to 192 kHz but do not state the complete supply specification, verify voltage rails, tolerances, startup behavior, and decoupling values directly from the manufacturer datasheet before schematic and layout approval.
Do not treat any stereo DAC with an I2S interface as a drop-in replacement merely because its resolution appears similar. Confirm the master-clock frequency and mode, sample-rate support, I2S data alignment, word length, logic levels, supply rails, pin assignments, output topology, and external filter requirements. For WM8718SEDS/V replacement, compare every net against the 20-SSOP pin table and confirm the differential output polarity before energizing a revised board.
Treat each differential analog channel as a matched, continuous signal path from the converter pins through filtering to the destination amplifier. Use symmetrical component placement where practical, keep stub lengths short, and avoid routing one output conductor near unrelated digital or switching nets. If the operating sample rate reaches 192 kHz, verify clock jitter, analog noise, distortion, and output-load performance against the manufacturer limits with the intended external filter and downstream circuit.
合規資訊
No explicit environmental or automotive qualification statements were included in the manufacturer and distributor product records reviewed for this part. Current Cirrus Logic material-declaration documentation should be requested for the exact ordering code before production release.
