AK5554VN - 32-Bit 768 kHz 4-Channel Audio ADC | AKM
料号： AK5554VN ✓ 量产中AK5554VN 概述
An audio ADC is a specialized data-converter IC that converts analog left- and right-channel audio signals into digital PCM or DSD data. It belongs to the ADC and DAC category within interface and signal-conversion ICs, where precision, noise performance, channel count, sampling rate, clocking, and digital-output compatibility determine suitability for recording, mixing, and playback equipment.
The AK5554VN supports up to 768 kHz sampling and four differential input channels. Its four-channel architecture suits multichannel recording systems, mixers, and digital recording consoles. Four selectable digital filters allow the conversion characteristics to be matched to different sound-quality priorities. The device also supports TDM audio formats for connection to a digital signal processor.
DSD output support extends to 11.2 MHz, providing a direct path for high-resolution digital audio workflows. Combined with the 32-bit conversion capability, 115 dB dynamic range, and 106 dB S/(N+D), the converter preserves fine amplitude and signal-to-noise information during capture. Its multi-channel and filter architecture reduces the need for parallel single-channel converters when designing professional audio equipment.
Typical applications include digital mixers, multichannel recorders, professional audio interfaces, broadcast equipment, and high-resolution studio capture systems. The AK5554VN is particularly relevant when a design requires both PCM operation and DSD output, or when differential analog inputs must feed a DSP through a TDM-compatible digital interface.
Designers should verify the external clock, analog input scaling, filtering, power-supply sequencing, and digital-interface voltage requirements against the manufacturer datasheet before layout. Differential routing, grounding, exposed-pad thermal management, and connector isolation are critical to preserving the advertised dynamic-range and S/(N+D) performance.
This page consolidates the verified manufacturer and distributor information for the AK5554VN, adds application-specific engineering guidance, identifies data that still requires datasheet confirmation, and avoids presenting unverified substitute parts as drop-in replacements.
直接替换替代料： AK5554VN ——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： AK5554VN （相同外形与封装尺寸） ——差异在于 Dynamic Range, Number of Channels, Package, Resolution.
该产品暂无直接替换替代料。
请求替代料AK5554VN 最大额定值与电气特性
| ADC Type | Delta-sigma audio A/D converter |
| 分辨率 | 32 bit |
| Maximum Sampling Rate | 768 kHz |
| Number of Channels | 4 channels |
| Input Configuration | Differential |
| Dynamic Range | 115 dB |
| Signal-to-Noise plus Distortion | 106 dB S/(N+D) |
| Digital Output Formats | PCM and DSD |
| Maximum DSD Output Frequency | 11.2 MHz |
| Digital Filter Options | 4 selectable filters |
| Digital Audio Interface | TDM-compatible |
| 封装 | 48-pin QFN, 7 mm × 7 mm |
| 安装类型 | Surface mount |
AK5554VN 48-pin qfn, 7 mm × 7 mm 引脚配置指南
AK5554VN（48-pin qfn, 7 mm × 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： AK5554VN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
AK5554VN 适用于 6 应用s: Digital Mixing Console, Multichannel Professional Recorder, High-Resolution Audio Interface, DSD Recording System, Broadcast and Studio Acquisition, DSP-Connected Audio Front End.
Digital Mixing Console
The AK5554VN fits a digital mixing console because four differential analog inputs can be converted at up to 768 kHz with 32-bit resolution, 115 dB dynamic range, and 106 dB S/(N+D). Its four selectable digital filters support different operating priorities, while TDM output provides a practical path to a digital signal processor. In a console architecture, multiple converter channels can feed one DSP, reducing parallel device count and simplifying synchronized clock distribution. The implementation must verify TDM slot allocation, supported master-clock ratios, logic levels, grounding, and whether the selected filter mode meets the console's latency and bandwidth requirements.
推荐
Multichannel Professional Recorder
The AK5554VN is appropriate for a multichannel recorder requiring four differential capture channels and high-resolution conversion. Its maximum sampling rate of 768 kHz supports high-speed recording workflows, while 32-bit conversion and a 115 dB dynamic range provide substantial headroom for professional source material. Four selectable filters allow the recorder to trade bandwidth, attenuation, noise, and latency according to the capture mode. In a multichannel chassis, the ADC can feed a DSP or digital routing engine over TDM, but channel synchronization, master-clock distribution, input references, and storage-format conversion must be engineered as one coherent clock tree.
推荐
High-Resolution Audio Interface
The AK5554VN can serve in a high-resolution audio interface where differential inputs, 768 kHz sampling, and DSD support are valuable. The 115 dB dynamic range and 106 dB S/(N+D) specifications indicate a converter designed for low-noise capture rather than general-purpose instrumentation. Its PCM and DSD output modes allow one converter to serve conventional PCM products and higher-resolution DSD-capable products. Interface-board designers must still establish input gain, common-mode margins, anti-alias filtering, channel isolation, and clock-source quality. Because the verified snippets do not provide the complete recommended circuit, its values and topology should be copied from the manufacturer application guidance.
推荐
DSD Recording System
The AK5554VN is specifically relevant to a DSD recording system because the verified datasheet result states DSD output support up to 11.2 MHz. Its four differential input channels permit simultaneous capture, while four selectable digital filters can be matched to different DSD operating modes and sound-quality objectives. The converter can feed a DSD-capable DSP or digital transport through its serial interface, subject to the required data, clock, and control formats. System validation must examine supported DSD rates, filter selection, latency, clock generation, and processor support because these implementation details are not fully included in the verified distributor summaries.
推荐
Broadcast and Studio Acquisition
The AK5554VN suits broadcast and studio acquisition systems that need high-resolution, multichannel conversion with flexible filtering. Four differential channels support balanced professional audio connections, while 768 kHz operation, 32-bit conversion, and 106 dB S/(N+D) provide useful headroom for demanding source capture. The selectable filters enable system designers to select among four conversion characteristics rather than accepting one fixed response. In studio equipment, low-noise analog layout, isolated clocking, balanced input routing, clean references, and careful exposed-pad thermal management are essential. These conditions preserve the converter's specified performance more effectively than digital processing can recover after an impaired analog capture stage.
推荐
DSP-Connected Audio Front End
The AK5554VN works well as a DSP-connected analog front end when the downstream processor requires high-resolution PCM or DSD data. TDM support provides a defined route for carrying multiple channels over a serial digital interface, reducing the number of separate data connections compared with independent parallel buses. The four differential inputs preserve channel separation at the converter stage, and 768 kHz sampling addresses high-speed acquisition requirements. DSP engineers must confirm supported word lengths, TDM slot widths, data alignment, frame timing, clock ratios, and audio-word latency. Firmware and hardware should be tested together because an apparently compatible ADC may still require different framing or filter-control behavior.
推荐
推荐产品汇总
工程参考数据： AK5554VN ——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 | Asahi Kasei Microdevices |
| Package | 48-pin QFN (7 mm × 7 mm) |
| Resolution | 32 bit |
| Maximum Sampling Rate | 768 kHz |
| Channel Count | 4 channels |
| Input Configuration | Differential |
| Dynamic Range | 115 dB |
| Signal-to-Noise plus Distortion | 106 dB S/(N+D) |
| Digital Output Formats | PCM and DSD |
| Maximum DSD Output Frequency | 11.2 MHz |
| Digital Filter Options | 4 selectable filters |
| Digital Audio Interface | TDM-compatible |
关键差异点
- Combines four-channel conversion with high-resolution DSD output （对比 Generic 32-bit four-channel PCM ADC)
- Supports four selectable digital filters （对比 Single-response generic audio ADC)
- Targets high-speed professional audio capture （对比 Standard-rate multichannel ADC)
设计说明
Route the four differential input pairs as controlled-impedance, closely matched traces with continuous ground reference and minimal asymmetry. Keep the analog input network close to the corresponding QFN pins, and separate the four channels until their common reference point to minimize crosstalk and sensitivity to external interference. The verified snippets do not provide complete recommended PCB artwork or component values, so grounding, trace geometry, and input termination must follow the current manufacturer datasheet and evaluation layout rather than being inferred from the package outline.
Treat the exposed pad of the 48-pin QFN as both an electrical connection and a thermal path, using the manufacturer-prescribed pad connection and copper arrangement. Place thermal vias near the pad where the recommended footprint permits them, while observing any restrictions around sensitive analog nodes. A verified junction-to-ambient resistance, maximum power dissipation, and junction-temperature limit were not provided, so thermal performance must be calculated from the final supply voltage, load, ambient temperature, and the datasheet limits obtained before release.
Do not interpret the 768 kHz PCM specification and the 11.2 MHz DSD figure as interchangeable sampling-rate claims. They describe different output modes with distinct clock, filter, and data-path requirements. Similarly, the presence of four filters does not establish that every mode supports every sample rate. Before schematic sign-off, verify the supported master-clock ratios, output formats, word length, TDM framing, DSD rates, and filter constraints in the manufacturer datasheet, then exercise each intended mode in hardware.
合规信息
The supplied verified data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals compliance. AEC-Q100 is treated as not applicable because this is an audio converter IC rather than an automotive-qualified device, but no automotive qualification is stated.
