AK4456VN - 32-Bit 6-Channel 768 kHz Audio DAC | AKM
部品番号: AK4456VN ✓ 生産中AK4456VN 概要
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.
ドロップイン代替品: AK4456VN — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: AK4456VN （同一形状・フットプリント） — 相違点: Device Type, Package.
AK4456VN-L
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AK4456VN 最大定格＆電気的特性
| 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 |
| パッケージ | 48-QFN (7 x 7 mm) |
| Package Pin Count | 48 pins |
| 実装タイプ | Surface mount |
| Digital Filter Characteristics | 32-bit digital filter processing |
AK4456VN 48 pins ピン配置ガイド
AK4456VN (48 pins パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: AK4456VN.
詳細は データシート をご参照ください。
主な用途
AK4456VN の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AK4456VN — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- High-resolution multichannel conversion （vs AK4456VN-L)
- Premium low-distortion architecture （vs AK4456VN-L)
- Six-channel integration （vs ES9038Q2M)
設計ノート
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.
コンプライアンス情報
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.
