AK4126XQ - 6-Channel 192kHz 24-Bit SRC | Asahi Kasei
料号： AK4126XQ ✓ 量产中AK4126XQ 概述
An asynchronous sample-rate converter is an interface IC that transfers digital audio between systems whose clocks are not phase-locked. Instead of requiring both devices to share a common master clock, the converter accepts independently generated clocks and regenerates the output data clock. This capability helps isolate clock-domain differences, simplifies system integration, and supports professional audio, broadcast, consumer, and multichannel playback equipment.
The verified product information identifies six audio channels, 24-bit conversion, operation up to 192 kHz, and asynchronous sample-rate conversion. The 64-pin LQFP package provides a practical surface-mount footprint for multichannel digital-audio boards. Unlike a basic audio codec, the AK4126XQ is identified as an Audio Special Purpose component and focuses on digital sample-rate conversion rather than analog-to-digital and digital-to-analog signal conversion.
Its multichannel architecture makes one device suitable for surround-sound, home-theater, professional mixing, digital-recording, and media-transport subsystems where multiple channels must undergo consistent rate conversion. Asynchronous operation is particularly valuable when the source equipment, processing engine, and destination equipment use unrelated clocks or require independent rate adaptation.
Designers should confirm clock topology, supported input and output rates, digital-audio interface format, voltage levels, signal timing, and decoupling requirements against the manufacturer datasheet before layout release. The relatively high pin count also warrants careful review of power and ground distribution, clock jitter margins, and routing of data signals.
This product page consolidates verified distributor information, package identification, application guidance, and engineering-selection criteria. It also clearly separates documented facts from parameters that require confirmation from the complete manufacturer datasheet, helping engineers plan sourcing without confusing general audio-converter characteristics with verified AK4126XQ values.
直接替换替代料： AK4126XQ ——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AK4126XQ 规格参数
| Product Type | Asynchronous sample-rate converter |
| Number of Audio Channels | 6 channels |
| Maximum Sampling Frequency | 192 kHz |
| Bit Resolution | 24 bit |
| Clocking Mode | Asynchronous |
| 分类 | Audio Special Purpose |
| 封装 | 64-pin LQFP |
| 安装类型 | Surface mount |
| Supplier Packaging | Tray |
AK4126XQ 64-pin lqfp 引脚配置指南
AK4126XQ（64-pin lqfp 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： AK4126XQ.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AK4126XQ 适用于 6 应用s: Home-Theater Audio Rate Conversion, Professional Multichannel Audio, Digital Recording and Playback, Broadcast and Studio Monitoring, Media-Transport and Synchronization, Digital Audio Test and Measurement.
Home-Theater Audio Rate Conversion
The AK4126XQ fits a home-theater signal chain where a source device, audio processor, and amplifier do not share a common master clock. Its 6-channel, 24-bit asynchronous sample-rate conversion capability allows digital audio to cross between independent clock domains while supporting rates as high as 192 kHz. The device can sit beside the main processor and regenerate output timing for multichannel speakers, reducing clock-sharing constraints. Designers should confirm the exact surround-sound interface format, supported sample rates, and master-clock arrangement in the manufacturer datasheet before finalizing the board.
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Professional Multichannel Audio
The AK4126XQ is appropriate for professional multichannel processing when six digital-audio channels must be transferred through asynchronously related clock domains. Its 24-bit word length accommodates high-resolution studio material, and the 192 kHz maximum supports high-rate workflows where the system and source support that rate. The converter can isolate digital-audio transport from a shared system clock, reducing timing coupling between equipment blocks. Confirm the supported clock ratios, audio word-length settings, and digital electrical characteristics against the complete datasheet before high-volume deployment.
推荐
Digital Recording and Playback
The AK4126XQ can serve as the sample-rate boundary in digital recording or playback equipment where playback engines, storage paths, and converters employ different clock sources. Six channels allow parallel conversion without assigning separate SRC devices to every pair. At 24-bit resolution and up to 192 kHz, the part addresses high-resolution multichannel workflows. The key design consideration is preserving stable clocks and meeting digital-interface voltage and timing requirements; those electrical details must be obtained from the manufacturer datasheet rather than inferred from distributor classifications.
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Broadcast and Studio Monitoring
The AK4126XQ is suitable for broadcast and studio monitoring paths where program sources may arrive at a different sample rate from the monitoring engine. Asynchronous conversion across 6 channels can support surround or multichannel monitoring while allowing independent source and destination clocks. Its 192 kHz ceiling supports high-rate monitoring formats when both sides operate at a compatible rate. Designers should verify supported sampling-rate combinations, clock-jitter requirements, and digital audio formats directly from the AK4126 datasheet before integrating the converter into a broadcast path.
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Media-Transport and Synchronization
The AK4126XQ can act as a clock-domain bridge in a media-transport system where a player, network receiver, or local decoder does not share timing with the downstream audio processor. The 6-channel asynchronous SRC architecture allows audio data and clocking to be re-established at the destination, while 24-bit operation and a maximum rate of 192 kHz provide useful format headroom. Implementation should include stable reference-clock planning and verification of supported digital-audio serial or parallel modes. The exact mode availability and initialization procedure require confirmation from the manufacturer documentation.
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Digital Audio Test and Measurement
The AK4126XQ can be used in digital-audio test equipment to translate asynchronous streams between sources with unrelated clocks. Its six-channel capability allows several test channels to share one converter, while 24-bit data and rates up to 192 kHz are useful for validating high-resolution digital chains. In an instrument, the converter can isolate the device under test from the timing architecture of the source generator or analyzer. Engineers must confirm supported rate pairs, latency behavior, clock jitter limits, and digital interface timing in the datasheet before finalizing a test-bench fixture.
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推荐产品汇总
工程参考数据： AK4126XQ ——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 |
|---|---|
| Package | 64-pin LQFP |
| Brand | Asahi Kasei Microdevices |
| Product Type | Asynchronous sample-rate converter |
| Audio Channels | 6 channels |
| Maximum Sampling Frequency | 192 kHz |
| Bit Resolution | 24 bit |
| Clocking Mode | Asynchronous |
| Supplier Packaging | Tray |
关键差异点
- Dedicated asynchronous conversion function （对比 AK4127VF)
- Multichannel throughput in one package （对比 AK4125VF)
- Verified high-resolution operating target （对比 AK4116VF)
设计说明
Assign the AK4126XQ clock, data, and power connections from the complete manufacturer pinout before PCB routing begins. Because the supplied data verifies a 64-pin LQFP but does not identify individual pin functions, do not infer signals from neighboring AKM devices. Keep each digital-audio group associated with its intended clock domain, maintain the datasheet-recommended trace lengths, and provide continuous return paths beneath high-speed digital signals.
Follow the manufacturer guidance for analog, digital, and clock-supply decoupling rather than adopting a generic capacitor arrangement. Place the required bypass capacitors at their designated supply pins with short ground connections, and separate noisy switching supplies from converter and clock domains where the datasheet permits. The verified data does not state the supply voltage or decoupling values, so these details must be taken directly from the AK4126 documentation before schematic release.
Do not treat the 192 kHz headline specification as permission to use every digital-audio format or sampling-rate combination. Asynchronous conversion requires compatible input and output clocking, and the supported rate matrix, clock ratios, latency, and initialization sequence must be verified in the datasheet. Using an unsupported mode can produce unreliable audio even when the source and destination nominally share the same nominal sample rate.
Clock quality is central to a multichannel asynchronous SRC design. Use low-jitter reference sources, keep clock traces short and isolated from data and return-current paths, and observe any impedance, length, and grounding requirements stated by the manufacturer. Confirm whether the six channels share clocks or provide independent clock inputs, because that topology determines fanout, isolation, and synchronization requirements across the board.
合规信息
The supplied verified product results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the manufacturer name or general distributor listings.
