AK4358VQ 8-Channel 24-Bit 192kHz DAC | Asahi Kasei
料号： AK4358VQ ✓ 量产中AK4358VQ 概述
An audio DAC is a signal-conversion IC that transforms digital PCM or DSD audio samples into continuous analog voltage signals for downstream amplifiers, headphones, line outputs, or powered speakers. Within the broader semiconductor hierarchy, the AK4358VQ is an ADC/DAC converter, an interface IC, and a signal-processing device. Its eight-channel architecture allows one converter to serve multichannel audio systems without requiring eight separate stereo output stages.
The AK4358VQ provides 24-bit resolution and operation up to 192 kHz, making it suitable for CD-quality playback, high-resolution audio equipment, multichannel digital mixers, and systems requiring DSD input. Its eight-channel organization reduces system-level routing complexity when a design must support several simultaneous analog outputs. The 48-LQFP package also provides ample perimeter pins for multi-channel analog, digital, clock, and power connections.
AKM's advanced multibit modulator architecture is central to the converter's audio performance. A multibit delta-sigma implementation shapes quantization noise outside the audible signal band and supports high linearity when paired with an appropriate analog output stage. The AK4358 is also identified as an eight-channel 112 dB DAC for PCM and DSD applications, making its specifications relevant to demanding digital-to-analog conversion designs.
Typical uses include professional audio equipment, multichannel home-theater processors, digital mixing consoles, USB and network audio systems, and multichannel consumer electronics. In each case, the device can receive digital audio through its I2S interface and produce eight balanced or unbalanced analog channels, depending on the external application circuit and output architecture.
A careful design should use the manufacturer's pin-description and application-circuit tables when assigning traces, grounding analog and digital return paths, and selecting bypass components. Clock routing, MCLK/LRCK/SCK synchronization, and analog-output filtering are equally important because correct digital timing does not by itself guarantee low-distortion analog performance.
This page consolidates the verified AK4358VQ identity, package, resolution, channel count, sampling-rate, interface, and DSD characteristics with practical design guidance. It also distinguishes verified drop-in substitutes from parts that are only functionally similar, helping engineers avoid assuming that an audio converter with similar output counts is pin-compatible.
直接替换替代料： AK4358VQ ——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AK4358VQ 最大额定值与电气特性
| Product Type | Audio digital-to-analog converter (DAC) |
| Number of Output Channels | 8 channels |
| 分辨率 | 24 bit |
| Maximum Sampling Frequency | 192 kHz |
| Supported Digital Audio Format | PCM and DSD |
| Digital Audio Interface | I2S |
| Dynamic Range | 112 dB |
| Converter Architecture | Advanced multibit delta-sigma modulator |
| Package Type | 48-LQFP |
| Package Dimensions | 7 mm x 7 mm |
| Total Pin Count | 48 pins |
| 安装类型 | Surface mount |
AK4358VQ 7 mm x 7 mm 引脚配置指南
AK4358VQ（7 mm x 7 mm 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： AK4358VQ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AK4358VQ 适用于 6 应用s: Multichannel Home-Theater DAC, Professional Digital Mixing Console, High-Resolution Network Audio Player, Professional Audio Interface, Digital Lounge and Hospitality Audio, Car Audio Digital Amplifier Front End.
Multichannel Home-Theater DAC
The AK4358VQ fits a home-theater processor or multichannel DAC because it combines eight analog output channels with 24-bit resolution and operation up to 192 kHz. Its I2S interface can receive multichannel PCM streams from an audio processor, while DSD support broadens compatibility with high-resolution sources. Eight channels reduce the need for multiple converter packages in a surround-sound design. The implementation must still map LRCK and data timing correctly, preserve channel alignment, and use the manufacturer-recommended reconstruction filters. Analog output topology, grounding, and output-stage loading determine the final signal integrity.
推荐
Professional Digital Mixing Console
The AK4358VQ is suitable for line-output stages in a professional digital mixing console because eight channels allow several mixer buses to be converted in one device. Operation up to 192 kHz supports high-resolution projects, and the 24-bit conversion format aligns with common digital audio workflows. The I2S input must support the console's channel framing, while the clock and data traces require careful routing to preserve word alignment. Low-level analog outputs also make grounding, return paths, filtering, and output-driver loading important. The manufacturer's application circuit should guide the choice of external resistors, capacitors, and output-stage components.
推荐
High-Resolution Network Audio Player
The AK4358VQ can serve as the conversion element in a network or USB audio player designed for high-resolution PCM and DSD playback. Its I2S interface provides a conventional digital-audio connection from a receiver or USB audio controller, while 192 kHz operation supports high-rate source formats. For a stereo-focused product, only part of the eight-channel DAC may be needed, but using the complete converter can support additional zones or balanced outputs. The design should prioritize a low-jitter clock path, correct master-clock derivation, and an analog filter matched to the target sample rate.
推荐
Professional Audio Interface
The AK4358VQ is appropriate for a professional audio interface requiring multiple digital-to-analog outputs rather than only two stereo channels. Eight outputs can support monitor, headphone-amplifier, auxiliary, or surround-monitor feeds within one converter package, depending on the signal architecture. The 24-bit, 192 kHz capability is useful for studio monitoring and high-resolution production workflows. The interface must synchronize MCLK, LRCK, and serial data accurately, isolate noisy digital return currents from sensitive analog outputs, and provide suitable output drive. Filter and gain choices should follow the manufacturer's recommended application circuit.
推荐
Digital Lounge and Hospitality Audio
The AK4358VQ can support digital lounge, hospitality, or premium-room audio systems that distribute several synchronized audio channels from a central processor. Its eight-channel architecture reduces the number of converter packages needed for zone and auxiliary outputs, and I2S provides a standard interface for digital audio routing. PCM and DSD support can accommodate different source paths when the upstream system performs the required format conversion. In real installations, long interconnects and multiple output loads make grounding, channel isolation, and output filtering important. Thermal and power planning should also account for continuous multichannel operation.
推荐
Car Audio Digital Amplifier Front End
The AK4358VQ can serve as the digital-to-analog front end of a multichannel car-audio amplifier when the vehicle electronics architecture accepts I2S audio and the required operating conditions are met. Eight channels suit surround, crossover, and multi-zone amplifier boards, while PCM and DSD support offers source-format flexibility. Vehicle environments require careful attention to ground-loop prevention, supply noise, temperature behavior, and connector reliability. The manufacturer's application circuit and electrical limits should be reviewed against the vehicle's voltage and environmental requirements. Any use in an automotive safety-related system also requires the appropriate qualification assessment.
推荐
工程参考数据： AK4358VQ ——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 |
|---|---|
| Product Type | 8-channel audio DAC |
| Brand | Asahi Kasei Microdevices |
| Package | 48-LQFP, 7 mm x 7 mm |
| Resolution | 24 bit |
| Maximum Sampling Frequency | 192 kHz |
| Number of Channels | 8 channels |
| Digital Audio Interface | I2S |
| Supported Input Formats | PCM and DSD |
| Dynamic Range | 112 dB |
| Converter Architecture | Advanced multibit modulator |
关键差异点
- Eight-channel conversion in one device （对比 AK4452)
- Higher channel count than a stereo converter （对比 AK4458)
- Broad PCM and DSD input support （对比 AK4534)
设计说明
Route MCLK, LRCK, SCK, and I2S data as short, continuous traces away from the analog outputs and external clock sources. Maintain a common ground reference between the converter and its digital interface, and place decoupling capacitors close to the relevant power pins. Because the AK4358VQ combines eight analog channels with a high-speed digital interface, a split analog and digital grounding strategy should be based on the manufacturer's application layout rather than improvised on the PCB.
Use the manufacturer's recommended external components for analog output reconstruction and filtering, and keep sensitive output nodes compact. Verify that MCLK, LRCK, and serial-bit timing satisfy the AK4358 datasheet requirements across every supported sample rate. Clock jitter, incorrect bit-clock ratios, and channel misalignment can create audible artifacts even when all digital data words are correct, so validate timing with the intended source and routing.
Do not treat AK4452, AK4458, AK4534, or another audio DAC as a drop-in replacement merely because its output count is similar. Confirm the package drawing, pin-by-pin assignments, supply rails, clock requirements, I2S format, analog output topology, and external filter values before substitution. Also distinguish the AK4358 family name from the exact AK4358VQ orderable code so that the selected package and pin configuration match the PCB.
Design the analog and digital supplies so converter startup, full-scale multichannel output, and downstream amplifier loading do not pull supply rails outside their specified limits. Place bulk and local bypass capacitance according to the manufacturer reference circuit and account for supply-noise coupling into the eight output channels. If the same board hosts switching regulators, keep their high-current paths and inductors away from the analog return and output-filter components.
合规信息
The available component information does not state the applicable RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Obtain current environmental and product compliance documents from the manufacturer before using the device in a regulated production design.
