AK4480EF - 32-Bit 216kHz 114dB Audio DAC | AKM
部品番号: AK4480EF ✗ 生産終了AK4480EF 概要
An audio DAC is a data converter that transforms digital audio samples into proportional analog voltages or currents. Within the signal-chain hierarchy, a DAC sits between a digital source, such as a Blu-ray Disc player, music server, or network audio streamer, and an analog amplifier or loudspeaker system. The AK4480EF uses a 32-bit digital filter within its conversion architecture, combining high sample-rate support with low-distortion output characteristics.
The device's 32-bit resolution accommodates high-resolution PCM content, while its 216 kHz DSD capability supports the highest-rate audio formats associated with modern source components. A 114 dB dynamic range provides ample headroom between low-level musical passages and full-scale program material. Its I2S interface allows digital audio data and clock signals to connect directly to an appropriate digital audio source or digital-to-analog conversion stage.
AK4480EF is supplied in a compact 30-pin VSOP package with 0.65 mm pitch. This high-density surface-mount construction supports compact digital audio products while requiring careful PCB layout, short clock and data routes, and stable grounding. The commercial-grade component is specified for operation from -10 °C to +70 °C, making it appropriate for indoor consumer and professional audio equipment operating within that environmental range.
Typical uses include Blu-ray Disc player output stages, high-resolution network streamers, USB-audio interfaces, digital mixers, surround-sound processors, and premium headphone amplifiers. It is especially relevant where a system must accept high-rate I2S audio and preserve a wide dynamic range before the signal reaches the analog power-amplifier stage. System designers should also account for the external analog reconstruction and output circuitry surrounding the converter.
For implementation, follow the manufacturer datasheet for pin assignment, analog-output configuration, digital-interface timing, power sequencing, and supported sampling modes. Keep digital input and clock traces short, provide a clean return path, decouple the supply pins near the device, and evaluate the analog output network for the intended amplifier input. These measures help preserve the converter's low-noise and low-distortion performance.
This product page combines the AK4480EF's core digital-audio specifications, package characteristics, operating limits, application guidance, design considerations, and comparison context. It also distinguishes exact-footprint replacement decisions from broader functional DAC choices, helping engineers evaluate the converter for both technical fit and board-level integration.
ドロップイン代替品: AK4480EF — 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。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストAK4480EF 最大定格＆電気的特性
| Converter Type | 32-bit audio digital-to-analog converter |
| Dynamic Range | 114 dB |
| Maximum DSD Rate | 216 kHz |
| Digital Audio Interface | I2S |
| Internal Digital Filter Resolution | 32 bit |
| 電源電圧 | 5 V |
| Package Type | 30-pin VSOP |
| Package Pitch | 0.65 mm |
| Package Width | 5.60 mm |
| Package Length | 5.60 mm |
| ピン数 | 30 pins |
| 実装タイプ | Surface mount |
| Screening Level | Commercial grade |
| Minimum Operating Temperature | -10 °C |
| Maximum Operating Temperature | +70 °C |
| Target Application | Blu-ray Disc and high-resolution audio systems |
AK4480EF 5.60 mm ピン配置ガイド
AK4480EF (5.60 mm 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: AK4480EF.
詳細は データシート をご参照ください。
主な用途
AK4480EF の用途: 6 件s: Blu-ray Disc Player Output Stage, High-Resolution Network Audio Streamer, Premium Headphone Amplifier, Digital Mixer and Studio Signal Processor, USB Audio Interface, Surround-Sound Audio Processor.
Blu-ray Disc Player Output Stage
The AK4480EF is well suited to the final digital-to-analog conversion stage of a Blu-ray Disc player because it is specifically positioned for high-performance 32-bit audio and provides a specified dynamic range of 114 dB. Its I2S interface connects to a digital audio source, while the internal 32-bit filter supports the reconstruction path. Up to 216 kHz DSD capability can serve compatible high-resolution source formats. In this design, the AK4480EF should feed a carefully selected analog reconstruction and output-amplifier network. PCB placement should keep digital clocks and data away from the analog outputs, while supply decoupling should follow the manufacturer layout guidance. Confirm the player’s supported sample rates, clock architecture, mute behavior, and output level before finalizing the board design.
おすすめ
High-Resolution Network Audio Streamer
AK4480EF can serve as the output converter in a network or USB audio streamer that accepts high-rate I2S data and prioritizes wide dynamic range. Its 32-bit conversion architecture and 114 dB dynamic range provide a strong match for source material with substantial dynamic range, while DSD operation up to 216 kHz supports compatible high-resolution streams. The digital source must supply the required clocks and data in a supported format, and the analog section should account for the converter’s output mode. For a compact implementation, the 30-pin VSOP package saves board area but requires a 0.65 mm pitch land pattern and assembly process capable of handling fine-pitch leads. Validate the complete path from network or USB decoding through I2S timing and analog output filtering.
おすすめ
Premium Headphone Amplifier
The AK4480EF is appropriate for a premium headphone-amplifier architecture that requires a high-resolution conversion stage before analog gain and output drive. The 114 dB dynamic range can preserve quiet musical passages and transients, while the 32-bit input capability supports high-resolution PCM and the listed 216 kHz DSD mode supports compatible sources. The converter should feed a low-noise analog voltage-gain stage whose input range matches the AK4480EF output configuration. Decoupling, grounding, and output-filter choices can materially affect perceived channel balance and distortion. Evaluate the complete headphone signal path rather than selecting the converter in isolation, including channel matching, mute sequencing, and the gain required for the target headphone impedance and sensitivity.
おすすめ
Digital Mixer and Studio Signal Processor
AK4480EF can support digital mixing or studio signal-processing equipment that needs a dedicated high-resolution analog output from an I2S-compatible processing engine. The 32-bit DAC architecture, 114 dB dynamic range, and support for DSD up to 216 kHz provide useful headroom for professional and enthusiast monitoring paths. In a multichannel mixer, each converter requires stable clocks, synchronized digital routing, and carefully planned analog output networks. The fine-pitch 30-pin VSOP package also requires an assembly process and board layout capable of maintaining reliable solder joints. Confirm whether the processor supplies master clocks directly or relies on asynchronous clock recovery, and verify all supported audio modes against the complete system clock tree before releasing the PCB for production.
おすすめ
USB Audio Interface
AK4480EF is suitable for a high-resolution USB audio interface when the USB audio processor can deliver the required I2S data and clocking arrangement. The converter’s 32-bit resolution supports high-resolution PCM streams, while its stated DSD capability up to 216 kHz can support compatible asynchronous USB-to-I2S architectures. The interface design must isolate USB-related switching noise from the analog conversion section and provide a low-noise, decoupled supply path for the DAC. Because the AK4480EF uses a fine-pitch 30-pin VSOP package, the analog and digital sections require strict placement discipline. Validate the supported operating modes, master-clock frequency, audio word length, mute timing, and output level against the USB controller before finalizing component and layout choices.
おすすめ
Surround-Sound Audio Processor
AK4480EF can be used in a surround-sound processor when the system requires high-resolution conversion on multiple analog output channels. The 114 dB dynamic range and 32-bit digital filter support a low-noise reconstruction stage for cinema, music, or gaming content, while I2S provides a conventional digital-audio connection from a surround processor. Each channel requires identical clocking and layout treatment to preserve inter-channel timing and amplitude consistency. The 30-pin VSOP footprint also requires repeating a careful decoupling pattern for every converter. Validate supported channel rates, word lengths, clock sources, mute timing, and output-routing behavior against the host processor. For legacy equipment revisions, verify the complete pin list and analog topology rather than assuming that a similarly named DAC has equivalent connections.
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: AK4480EF — 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 | AK4482VT | AK4482VT-E2 |
|---|---|---|---|
| Brand | Asahi Kasei Microdevices | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
| Drop-In Status | Target device | Not established as a drop-in replacement | Not established as a drop-in replacement |
設計ノート
Route I2S data, bit clock, and master clock as compact, continuous signals with short return paths. Keep switching nodes and digital return currents away from the AK4480EF analog output network. Place the device according to the manufacturer's reference layout and preserve continuous ground planes beneath and around the converter. Because the package uses a 0.65 mm pitch, confirm that the PCB design rules, solder mask, land pattern, and assembly process support reliable fine-pitch soldering.
Use the datasheet-specified 5 V supply arrangement and place the required bypass capacitors close to their associated supply and ground pins. Keep the digital and analog return-current paths controlled so that converter current does not share high-impedance analog return paths. Check the analog output quiescent-current and operating-mode requirements before finalizing power-supply capacity. The converter's 5 V operating requirement is confirmed, but component values and capacitor tolerances must be taken from the manufacturer guidance.
Treat the master clock as a high-quality timing reference and verify every supported sample rate against the digital-source clock tree. Prevent clock edges from coupling into the analog output by avoiding long clock routes beneath analog traces and by maintaining a quiet ground reference. Validate data and bit-clock alignment at the converter pins using the interface timing described in the manufacturer documentation. Audio performance depends on the complete digital-to-analog path, not only on nominal converter resolution.
Do not interpret the AK4480, AK4482VT, and AK4482VT-E2 family names as proof of pin compatibility. A replacement is only drop-in when the package dimensions, pin numbering, supply connections, digital timing, clock requirements, analog outputs, and mute behavior all match the original PCB. For an existing design, compare the original AK4480EF schematic and pin descriptions directly with the candidate datasheet before changing a component designation or releasing replacement production parts.
コンプライアンス情報
The AK4480EF is identified as a commercial-grade component. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations are not stated in the product records.
