WM8520H9GED - Stereo 2Vrms Audio DAC | Cirrus Logic
料号： WM8520H9GED ✗ 停产WM8520H9GED 概述
An audio DAC is a mixed-signal semiconductor that accepts digital audio data and reconstructs a continuous analog voltage waveform. In a complete audio chain, it follows the digital source and signal-processing stages and precedes an analog output amplifier, speaker driver, or line-level input. The WM8520H9GED’s stereo architecture supports dual-channel signal generation, while its specified 2 Vrms output provides a useful reference for designing the output-network and downstream amplification requirements.
The principal documented feature is 2 Vrms stereo output. This makes the converter applicable to consumer audio equipment, digital audio sources, compact stereo systems, and test setups that require balanced left and right signal paths. The SOIC package supports conventional surface-mount PCB assembly and is appropriate for designs that do not require the smaller dimensions of a compact chip-scale package. Board layout must preserve clean analog routing around the converter output circuitry.
WM8520H9GED is identified as an audio D/A converter IC and is listed under the Cirrus Logic product name. The “WM” family designation and full suffix identify the specific orderable device and its package-related ordering code. Designers should use the manufacturer datasheet pin description table, electrical characteristics, and recommended application circuit when assigning signals, selecting external components, and confirming interface compatibility with the surrounding digital audio system.
Typical uses include digital music players, powered stereo speakers, multimedia equipment, compact home-audio systems, and audio test and measurement products. In each case, the converter can generate separate left and right analog outputs for an amplifier stage. The 2 Vrms specification should be matched to the intended load, output coupling method, gain structure, and protection requirements rather than treated as a universal output-current rating.
The primary design consideration is separating sensitive analog output routing from digital interface and clock signals. Keep output traces short, use a stable reference and qualified decoupling network, and follow the manufacturer’s reference layout to minimize conversion-related distortion or crosstalk. Confirm that the surrounding amplifier can accept the converter’s analog output range and signal level.
This product page combines the confirmed stereo DAC classification, 2 Vrms output capability, SOIC package information, sourcing guidance, application context, and drop-in replacement research. It also distinguishes a genuine pin-compatible replacement from parts that are merely functionally similar, helping engineers make a safer PCB-level sourcing decision.
直接替换替代料： WM8520H9GED ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料WM8520H9GED 最大额定值与电气特性
| Device Type | Stereo audio digital-to-analog converter IC |
| Number of Channels | 2 channels |
| Output Level | 2 Vrms |
| Package Type | SOIC |
| 安装类型 | Surface-mount |
| Manufacturer | Cirrus Logic |
| Product Family | WM8520 |
| Converter Category | Audio D/A converter |
| Signal Class | Mixed-signal audio IC |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
WM8520H9GED soic 引脚配置指南
WM8520H9GED（soic 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： WM8520H9GED.
请参阅 数据手册 以查看完整引脚配置。
典型应用
WM8520H9GED 适用于 6 应用s: Powered Stereo Speaker, Digital Music Player, Multimedia Audio System, Compact Home Audio System, Audio Test and Measurement Equipment, Digital Audio Source and Interface.
Powered Stereo Speaker
The WM8520H9GED can serve as the digital-to-analog stage ahead of a stereo power amplifier in a powered speaker or compact audio system. Its documented stereo configuration provides separate left and right conversion paths, while the 2 Vrms output characteristic defines a useful reference for the subsequent analog gain stage. The implementation should use the manufacturer’s recommended digital interface, reference, decoupling, and output-filter arrangements. Designers should also verify the amplifier’s input range so the nominal 2 Vrms converter output does not clip the next stage. Short analog traces, a quiet ground implementation, and controlled digital clock routing are important in a feedback-capable speaker design.
推荐
Digital Music Player
A digital music player can use the WM8520H9GED to reconstruct two-channel audio after a digital source has been decoded. The stereo DAC architecture supports separate left and right outputs, and the 2 Vrms rating provides a defined basis for selecting the output-coupling and gain stages. The digital source must supply a compatible interface, sample rate, and clocking arrangement, while the analog section must preserve signal symmetry. For portable equipment, verify supply-voltage range, power consumption, and package footprint in the manufacturer documentation before committing the board layout. Headphone-drive suitability depends on the required output impedance and current, neither of which is established by the product index.
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Multimedia Audio System
The WM8520H9GED is applicable to multimedia equipment requiring a dedicated stereo digital-to-analog conversion path for headphones, powered speakers, or line-level amplification. Its dual-channel capability simplifies left and right routing, while the documented 2 Vrms output allows the analog gain plan to be evaluated against downstream amplifier limits. The converter should be placed close to the audio output filtering and connector circuitry, with digital interfaces routed away from sensitive output nodes. Confirm whether the host processor can provide the required data, clock, and synchronization signals. Firmware must also support the converter’s native format and sample-rate behavior, which should be taken from the exact manufacturer documentation rather than inferred from generic audio-controller requirements.
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Compact Home Audio System
A compact home-audio system can use the WM8520H9GED as the bridge between digital audio content and an analog stereo amplifier. The 2 Vrms stereo output is useful when designing around line-level signal paths, although the final headroom depends on the selected coupling network and amplifier gain. The digital source, DAC, and amplifier should share a carefully planned ground structure to avoid channel imbalance or audible contamination. Place analog output components close to the converter, maintain symmetry between left and right channels, and keep switching-regulator and display signals away from the output nodes. Before production, verify the supported sampling rates, master-clock arrangement, supply rails, and startup sequence against the exact device datasheet.
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Audio Test and Measurement Equipment
The WM8520H9GED can serve as a stereo digital-to-analog converter in audio test equipment that generates left and right analog waveforms from a digital source. Its documented 2 Vrms output provides a clear target when setting input range, attenuation, and measurement limits of downstream instrumentation. For precision work, the complete signal chain must be characterized for noise, distortion, channel matching, and clock-related artifacts using the manufacturer’s electrical characteristics. The converter should receive stable reference and decoupling components, and the analog output filter should be designed according to the supported interface bandwidth. Use the Request a Quote form to confirm exact configuration and supply timing for production instrumentation builds.
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Digital Audio Source and Interface
The WM8520H9GED can form the analog-output section of a digital audio source that accepts compressed or linear digital audio and feeds an external amplifier. The stereo DAC provides two nominal 2 Vrms outputs, allowing left and right channels to remain separate through the analog stage. Integration depends on matching the digital interface, sample-rate support, clock source, and reset behavior to the host processor. Board partitioning should place the converter and its analog filters near the output connectors, while clock and data traces should be routed away from high-impedance analog nodes. Mechanical planning must follow the confirmed SOIC land pattern and verify pin orientation against the actual assembly drawing before fabrication.
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推荐产品汇总
工程参考数据： WM8520H9GED ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 |
|---|---|
| Brand | Cirrus Logic |
| Package | SOIC |
| Device Type | Stereo audio D/A converter IC |
| Channel Count | 2 channels |
| Output Level | 2 Vrms |
| Mounting Type | Surface-mount |
关键差异点
- Documented 2 Vrms stereo output capability （对比 PCM1725DR)
- Purpose-built stereo audio converter format （对比 PCM1808PW)
- Exact original orderable configuration （对比 WM8520H9GED/R)
设计说明
Place the WM8520H9GED close to the analog output network and separate its digital interface routing from left and right output traces. Keep the two analog channels geometrically similar to reduce timing and routing-induced imbalance. Confirm the exact SOIC footprint and pin numbering against the manufacturer package drawing before releasing Gerber files; the product index does not establish the SOIC pin count or individual signal assignments.
Do not assume that every stereo DAC with a similar package is a drop-in replacement. A valid substitution must match the digital interface, sample-rate range, clock architecture, supply rails, pinout, output topology, and analog component values. Compare the WM8520H9GED pin-description table and typical application circuit directly with the candidate. A matching package outline alone is insufficient to establish PCB-level compatibility.
Use the manufacturer’s recommended reference, decoupling, and filtering arrangements because the interaction among the digital interface, clock signals, and analog outputs can affect channel matching and distortion. Place input and output capacitors at their designated pins, provide a low-impedance return path, and keep switching-power and high-current amplifier routes away from sensitive audio nodes. Evaluate the completed board with left and right channel tests across the intended operating frequency range.
合规信息
The available product index identifies the WM8520H9GED as a Cirrus Logic stereo 2 Vrms audio D/A converter in an SOIC package but does not provide specific RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations.
