AK4393VM - 24-Bit 108kHz Stereo DAC | Asahi Kasei
MPN： AK4393VM ✓ 啟用中AK4393VM 概覽
An audio DAC is a signal-conversion integrated circuit that reconstructs continuous analog voltages from digital audio samples. Within the signal-chain hierarchy, the AK4393VM belongs to the ADC/DAC class of data-converter ICs and supports digital audio systems, home theater, digital recording equipment, and high-fidelity playback. Its 2-channel architecture converts left and right digital streams into balanced or unbalanced analog outputs through the application circuit.
Key features include 24-bit resolution, operation up to 108 kHz, stereo output, an I2S interface, an integrated 24-bit digital filter, and the advanced multi-bit delta-sigma architecture. The multi-bit approach is significant because it spreads quantization error across multiple internal bits, supporting improved dynamic-range performance without abandoning the fundamental advantages of delta-sigma conversion. The 28-SSOP package supports conventional surface-mount PCB assembly.
The AK4393VM is intended for digital audio paths requiring separate left and right conversion channels and a standard serial digital interface. Its architecture is particularly relevant to source equipment operating at ordinary CD, DVD, DAT, and related high-resolution audio rates. Because the converter includes a digital filter, system designers should review the manufacturer’s timing and filter recommendations when configuring clocking, filtering, and digital signal routing.
Typical applications include professional DAT equipment, DVD-audio and home-theater systems, digital mixing consoles, multichannel audio processors, sampling workstations, and high-fidelity consumer playback equipment. For designs with digital-domain processing, the AK4393VM can serve as the final stereo conversion stage after decoding, mixing, or sample-rate-conversion functions.
The most important design consideration is preserving the converter’s recommended analog and digital layout. Keep the I2S clock and data routing short, use clean grounding between digital and analog sections, and follow the manufacturer’s output-filter and reference-component recommendations. Analog output impedance, load capacitance, and clock jitter can affect measured channel performance even when the digital data is valid.
This product page consolidates the AK4393VM architecture, interface information, package details, application guidance, and compatible replacement information into an engineering-focused reference for audio-product designers, procurement teams, and PCB layout engineers.
直接替換替代品，適用於 AK4393VM — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： AK4393VM （相同外形與佔位） — 差異在於 Digital Filter, Maximum Sampling Rate, Package, Product Type.
AK4393VF
✅ 直接替換聯絡詢價
查看資料表 →AK4396VF
✅ 直接替換聯絡詢價
查看資料表 →PCM1795DBR
✅ 直接替換📋 參考替代品（不在目錄中）
PCM1791ADB
✅ 直接替換📋 參考替代品（不在目錄中）
AK4393VM 最大額定值與電氣特性
| Product Type | Stereo audio digital-to-analog converter (DAC) |
| 解析度 | 24 bit |
| Maximum Sampling Rate | 108 kHz |
| Channel Count | 2 channels |
| Digital Interface | I2S |
| Converter Architecture | Advanced multi-bit delta-sigma modulator |
| Digital Filter | 24 bit |
| 封裝 | 28-pin SSOP |
| 安裝類型 | Surface mount |
| RoHS Compliance | RoHS3 compliant |
| Standard Sampling Applications | DAT and DVD audio systems |
AK4393VM 28-pin ssop 腳位配置指南
AK4393VM（28-pin ssop 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： AK4393VM.
請參閱 資料表 以查看完整腳位配置。
典型應用
AK4393VM 適用於 6 應用s: Professional DAT Audio Equipment, DVD and Home-Theater Audio, Digital Mixing Console, High-Fidelity Network Audio Player, Multichannel Audio Processor, Digital Recording and Sampling System.
Professional DAT Audio Equipment
The AK4393VM fits a stereo DAT playback or recording path that requires 24-bit digital audio conversion at rates up to 108 kHz. Its 2-channel I2S interface accepts digital samples from a decoder or DSP, while the advanced multi-bit delta-sigma architecture provides the wider dynamic range emphasized in the manufacturer documentation. The 28-SSOP package also suits compact professional audio boards where a conventional surface-mount audio DAC is preferred. Designers should follow the recommended master-clock arrangement, digital-filter configuration, analog reconstruction network, and grounding layout. Because clock jitter and output loading can influence measured performance, evaluate the complete converter and analog path rather than relying only on digital sample accuracy.
推薦
DVD and Home-Theater Audio
The AK4393VM is appropriate for the stereo analog-output stage of DVD, home-theater, and source equipment that receives 24-bit digital audio through I2S. A typical signal chain routes decoded or processed left and right channels into the converter, then uses the manufacturer-recommended analog filters and output network to drive amplifier inputs. Its 108 kHz maximum sampling rate supports high-rate source formats, while the integrated 24-bit digital filter defines part of the conversion behavior. The key layout objective is to isolate I2S clock and data routing from the analog outputs while maintaining a low-impedance ground return. Validate output level, channel balance, and filter response in the finished enclosure and amplifier configuration.
推薦
Digital Mixing Console
A digital mixing console can use the AK4393VM as a stereo monitoring or line-output DAC when it requires independent left and right conversion at 24-bit resolution. Position the device after the console’s digital mixing or routing stage, then implement the recommended analog filtering, decoupling, and output drive for balanced or unbalanced monitoring connections. The I2S interface supports integration with digital signal-processing paths, while the multi-bit delta-sigma architecture targets high dynamic range and low distortion. Because audio consoles may route multiple channels through a common backplane, keep clocks and data controlled and keep analog grounds physically separated from switching supplies and digital processors. Confirm channel alignment and full-scale output behavior with the console’s gain structure.
推薦
High-Fidelity Network Audio Player
The AK4393VM can form the final conversion stage of a high-fidelity network or computer audio player that accepts I2S data from a USB, network, or digital-audio processor. Its 24-bit conversion capability and operation up to 108 kHz make it suitable for players targeting CD-quality and higher-rate sources. Place the converter close to the analog output stage, maintain short data and clock routes, and use the manufacturer’s recommended grounding and output network. The architecture’s wider-dynamic-range objective supports low-noise playback, although actual signal-to-noise and distortion results depend on supply quality, clock jitter, layout, and the following amplifier. Confirm polarity, output level, and channel balance with the selected digital transport and analog output stage.
推薦
Multichannel Audio Processor
The AK4393VM is useful in a multichannel processor as a stereo monitoring, synchronization, or auxiliary output converter. The 2-channel architecture allows left and right I2S streams to be converted into analog signals for comparison, metering, or auxiliary monitoring. Its 108 kHz capability can accommodate high-rate processing pipelines, and the integrated 24-bit digital filter provides a defined digital filtering stage. Designers should confirm whether the processor’s clock tree can provide the required master clock and whether the selected I2S mode aligns with the AK4393 timing requirements. Use isolated analog routing where the surrounding system includes switching regulators or high-current outputs, and verify that the final analog reference remains stable during large output-level transitions.
推薦
Digital Recording and Sampling System
The AK4393VM can be incorporated into a digital recording or sampling system as a high-quality stereo DAC for monitoring, synchronization, or auxiliary playback. Its 24-bit resolution, 108 kHz maximum rate, and I2S interface support digital audio paths operating from CD through high-rate studio modes. Place the converter downstream of the digital recording or playback engine, then apply the recommended analog reconstruction and output stages. A stable master clock and controlled digital routing are essential for minimizing conversion-related errors. Analog decoupling should be placed directly at the device supply pins, while output traces should remain short and appropriately terminated. Validate the design for full-scale signals, low-level passages, and simultaneous digital activity to identify any audible or measurable interference.
推薦
推薦產品摘要
工程參考資料，適用於 AK4393VM — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | AK4393VF | AK4396VF | PCM1795DBR | PCM1791ADB |
|---|---|---|---|---|---|
| Brand | Asahi Kasei | Asahi Kasei | Asahi Kasei | Texas Instruments | Texas Instruments |
| Package | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP | 28-SSOP |
| Product Type | Stereo audio DAC | Stereo audio DAC | Stereo audio DAC | Stereo audio DAC | Stereo audio DAC |
| Resolution | 24 bit | 24 bit | 24 bit | 24 bit | 24 bit |
| Channel Count | 2 channels | 2 channels | 2 channels | 2 channels | 2 channels |
主要差異化特點
- High-resolution stereo conversion (對比PCM1795DBR)
- Advanced multi-bit delta-sigma implementation (對比AK4393VF)
- I2S integration for digital audio designs (對比AK4396VF)
設計說明
Separate the digital input section from the analog output section. Route I2S data, bit clock, and master clock on the digital side of the board, and place the analog output network close to the converter pins. Keep switching-regulator components and high-current digital returns away from the analog output ground path. This separation reduces the chance that clock transitions or ground current changes appear as audible noise and channel imbalance.
Use the manufacturer application circuit to determine the analog and digital supply topology and decoupling values. Place each decoupling capacitor directly beside the corresponding AK4393VM supply pin, with a short return to the appropriate ground plane. Verify ripple, startup behavior, and the permitted supply range during power-up because digital and analog rails may have separate sequencing or filtering requirements.
Treat the digital interface as a clocked synchronous signal path. Confirm I2S format, polarity, data alignment, and master-clock relationships against the manufacturer timing diagrams. Keep the clock source and data traces short, avoid unnecessary stubs, and use a continuous reference plane. If the source is a long cable or an external FPGA, add an appropriate interface buffer rather than relying on long board-level traces.
Do not assume that sharing the 28-SSOP package makes another stereo DAC electrically interchangeable. Before substituting AK4393VF, AK4396VF, PCM1795DBR, or PCM1791ADB, compare supply voltages, master-clock requirements, I2S timing, analog-output topology, reset or mode pins, and external filter values. Check all package dimensions and pin numbering against the actual ordering code, then validate gain, polarity, bandwidth, and distortion in hardware.
合規資訊
The AK4393VM listing identifies the device as RoHS3 compliant. Other compliance declarations require confirmation from the manufacturer.