AK4456VN - 32-Bit 6-Channel 768 kHz Audio DAC | AKM
料号： AK4456VN ✓ 量产中AK4456VN 概述
An audio digital-to-analog converter, or audio DAC, converts digital PCM or DSD data into analog voltage signals suitable for amplification and loudspeaker reproduction. Within the semiconductor hierarchy, an audio DAC is a specialized data-converter IC and a member of the broader ADC/DAC category. It sits at the interface between a digital audio source and an analog signal chain, where its noise, distortion, channel count, and supported input formats materially affect playback quality.
The AK4456VN provides six DAC channels, 32-bit resolution, a maximum PCM sampling rate of 768 kHz, and DSD support up to 11.2 MHz. Verified product information identifies a dynamic-range figure of 115 dB and describes the device as a premium multichannel DAC. These capabilities suit component audio equipment, network players, USB DACs, automotive audio systems, and other installations requiring several synchronized high-resolution outputs.
Its VELVET SOUND architecture is intended to reduce distortion while preserving fine signal details. The 32-bit digital filtering path supports modern high-resolution source formats, while the six-channel architecture allows one converter to serve multichannel playback without requiring six discrete DAC packages. DSD compatibility broadens format support, although the complete system must also provide compatible source, clocking, filtering, and output-stage circuitry.
Typical implementations place the AK4456VN after an audio receiver or digital interface and before balanced or single-ended analog amplifier stages. Because this is a high-performance analog output device, clean grounding, low-noise supplies, controlled clock routing, and symmetrical analog layout are essential. Differential output routing and appropriately shielded connections can help preserve the benefit of the converter's low-distortion architecture.
The main design trade-off is that performance depends on system-level implementation rather than the DAC alone. Power, ground, digital-interface isolation, output load, and clock jitter can affect the final audio result. Designers should follow the manufacturer's datasheet for the exact 48-QFN pin assignments, supported digital formats, external-component recommendations, and application circuit.
This page consolidates verified manufacturer and distributor information, purchase guidance, practical implementation notes, and a strict compatibility review of potential substitutes. It distinguishes a same-series ordering option from functional alternatives that do not provide a verified pin-to-pin replacement path.
直接替换替代料： AK4456VN ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： AK4456VN （相同外形与封装尺寸） ——差异在于 Device Type, Package.
AK4456VN-L
✅ 直接替换📋 参考替代料（不在目录中）
AK4456VN 最大额定值与电气特性
| Device Type | 32-bit 6-channel premium audio digital-to-analog converter |
| Number of DAC Channels | 6 channels |
| Bit Resolution | 32 bit |
| Maximum PCM Input Rate | 768 kHz |
| Maximum DSD Input Rate | 11.2 MHz |
| Dynamic Range | 115 dB |
| Digital Input Interface | I2S |
| Conversion Architecture | VELVET SOUND architecture |
| 封装 | 48-QFN (7 x 7 mm) |
| Package Pin Count | 48 pins |
| 安装类型 | Surface mount |
| Digital Filter Characteristics | 32-bit digital filter processing |
AK4456VN 48 pins 引脚配置指南
AK4456VN（48 pins 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： AK4456VN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AK4456VN 适用于 6 应用s: High-Resolution Network Audio Player, Premium USB Audio DAC, Multichannel Home Theater DAC, Automotive Audio System, Studio Monitoring Converter, Digital Audio Recording and Playback System.
High-Resolution Network Audio Player
The AK4456VN fits a network-audio player that accepts high-resolution digital streams because it supports I2S input up to 768 kHz PCM and 11.2 MHz DSD while providing six conversion channels. The verified 115 dB dynamic range gives the converter substantial headroom for high-fidelity playback. It can sit between the receiver or network-audio processing section and the analog output stage. Because the device is not merely a format converter, clocking, ground separation, supply cleanliness, and the analog output architecture must also be designed carefully to preserve the benefit of its VELVET SOUND architecture.
推荐
Premium USB Audio DAC
The AK4456VN is suitable for a premium USB DAC when the USB interface delivers PCM or DSD data in a format the receiver can convert to I2S. Its six-channel output allows multichannel monitoring or multiple analog zones, while 768 kHz PCM and 11.2 MHz DSD support accommodates high-resolution source formats. The verified 32-bit resolution and 115 dB dynamic range support low-distortion conversion. Practical implementation still requires a compatible USB-audio controller, stable clocking, a ground-separated digital-to-analog boundary, and a quiet analog output stage connected according to the manufacturer application circuit.
推荐
Multichannel Home Theater DAC
The AK4456VN provides six conversion channels for a multichannel home-theater audio path without requiring six separate DAC packages. Its I2S input, 32-bit processing, and support for PCM rates through 768 kHz suit high-resolution multichannel sources, while the verified 115 dB dynamic range provides ample signal headroom. The converter should follow the digital receiver or processor and precede balanced or single-ended amplifiers. Layout quality is critical because the digital section, clock lines, analog outputs, ground return, and power supply must remain separated to avoid allowing switching or digital coupling to dominate the final output noise.
推荐
Automotive Audio System
The manufacturer identifies car-audio systems as an application for the AK4456VN, and its six-channel architecture can support several vehicle audio zones from one converter. High-resolution PCM and DSD input support can be valuable in premium infotainment designs, provided the source and interface generate compatible streams. The verified data does not confirm the temperature range, AEC-Q100 qualification, load-drive capability, or automotive supply requirements, so those points must be resolved before release. Production designs should also verify transient, vibration, and temperature requirements against the complete manufacturer documentation.
推荐
Studio Monitoring Converter
The AK4456VN can serve in a professional monitoring converter when low-distortion playback and support for high-resolution digital sources are priorities. Its six channels allow front, rear, and additional monitoring outputs, while the verified 115 dB dynamic range provides useful headroom over the program material. The I2S interface can receive audio from a digital workstation or converter after appropriate clock and format handling. For studio use, designers should preserve signal-chain symmetry, use a clean low-noise supply, minimize ground-potential differences, and confirm output loading and termination values from the manufacturer datasheet before finalizing the analog stage.
推荐
Digital Audio Recording and Playback System
The AK4456VN is applicable to a recording and playback system that needs six high-quality analog outputs while retaining a digital processing path. The verified 32-bit resolution accommodates high-resolution PCM sources, and the 768 kHz PCM and 11.2 MHz DSD limits support modern digital formats. It can be paired with an AKM digital interface for signal ingestion or clock-oriented system functions, followed by low-noise amplification. Timing integrity remains essential: the converter should receive clean clocks, and its digital and analog sections should use controlled grounding and decoupling in accordance with the manufacturer's recommended layout.
推荐
推荐产品汇总
工程参考数据： AK4456VN ——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 | AK4456VN-L |
|---|---|---|
| Manufacturer | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
| Package | 48-QFN (7 x 7 mm) | 48-QFN (7 x 7 mm) - compatibility requires manufacturer pin-table confirmation |
关键差异点
- High-resolution multichannel conversion （对比 AK4456VN-L)
- Premium low-distortion architecture （对比 AK4456VN-L)
- Six-channel integration （对比 ES9038Q2M)
设计说明
Separate the digital input and clock routing from the six analog outputs, and use the manufacturer application circuit as the reference for component placement. Keep analog traces away from high-current switching nodes, maintain continuous ground-return paths, and use symmetrical routing where possible. The supplied search results do not expose the complete pin table, so the physical layout must be based on the official 48-QFN drawing rather than inferred from package dimensions.
Use a quiet, low-impedance supply for the converter and decouple each supply domain as directed in the manufacturer datasheet. The verified source confirms the 48-QFN package and high-resolution conversion performance but does not provide the required capacitor values or voltage rails. Do not substitute generic values without checking the official recommended circuit, especially around a high-performance DAC where supply noise can affect the analog output.
Treat the I2S data, word-select, and master-clock lines as high-speed digital signals even when their frequency is below 768 kHz, because the product also supports DSD input up to 11.2 MHz. Maintain short, continuous traces, provide a suitable return path, avoid unnecessary stubs, and confirm clock timing and levels against the manufacturer specifications. Digital activity beneath the analog output region should be avoided.
Do not treat ES9038Q2M, PCM1794A, or WM8740 as drop-in substitutions merely because they perform digital-to-analog conversion. The verified cross-reference source describes them as functional equivalents, but the AK4456VN has six channels and a 48-QFN package. A redesign must compare channel count, footprint, pin functions, digital format, clock architecture, output type, control interface, and software configuration rather than relying on DAC functionality alone.
合规信息
The supplied verified data does not contain explicit compliance statements for the AK4456VN. Automotive applications are mentioned by the manufacturer, but AEC-Q100 qualification was not provided and must not be inferred.
