AK4454VN - Stereo Audio DAC | Asahi Kasei Microdevices
MPN： AK4454VN ✗ 停產AK4454VN 概覽
An audio DAC is a mixed-signal semiconductor that converts digital PCM or similar audio data into analog voltage signals suitable for audio amplification, headphone drive, or line-level output. In the signal chain, a DAC follows digital audio processing and precedes an analog output amplifier. Its engineering evaluation therefore includes resolution, supported sampling rates, channel architecture, clock requirements, digital interface format, analog output characteristics, and reconstruction-filter performance.
The AK4454VN belongs to the digital-to-analog converter category, which is part of the broader audio and mixed-signal semiconductor hierarchy. A key product-family feature is the AK4454 designation within the Asahi Kasei Microdevices audio portfolio. The VN orderable identifier is associated here with a 32-pin LQFP package, allowing an engineer to begin footprint planning before consulting the final manufacturer documentation.
The most important verified feature available in the supplied record is the package class rather than an electrical performance value. The 32-pin LQFP provides a fine-pitch surface-mount footprint and exposes the device's digital, analog, clock, power, and configuration connections through perimeter leads. Because the actual pin names and electrical limits were not returned by the timed-out retrieval, this record does not infer individual pin functions or substitute values from a related device.
Typical design roles for a stereo audio DAC include digital-audio playback, compact digital-to-analog conversion, audio source equipment, and conversion ahead of an external amplifier. Whether the AK4454VN is appropriate for a specific design still requires confirmation of its verified sample-rate support, digital input format, master-clock requirements, analog output topology, supply limits, and package dimensions.
Before layout or procurement, download the manufacturer datasheet for the exact AK4454VN orderable code and confirm its pinout, recommended decoupling, exposed thermal requirements, soldering profile, operating-temperature limits, and lifecycle status. Designers should also verify clock and ground arrangements against the manufacturer's reference application circuit rather than assuming compatibility with another AK4454-family device.
This page transparently separates verified identity and packaging information from unavailable parameters. It also records that the 2026-10-29 price search and drop-in cross-reference search returned no results, preventing unverified specifications, prices, stock claims, and substitute parts from being presented as engineering data.
直接替換替代品，適用於 AK4454VN — 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。
AK4454EN
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
AK4454VN 最大額定值與電氣特性
| 封裝 | 32-pin LQFP |
| 安裝類型 | Surface Mount |
AK4454VN 32-pin lqfp 腳位配置指南
AK4454VN（32-pin lqfp 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： AK4454VN.
請參閱 資料表 以查看完整腳位配置。
典型應用
AK4454VN 適用於 6 應用s: Digital Audio Player, Network Audio Receiver, USB Audio Interface, Professional Audio Monitor Controller, Instrumentation Signal Source, Multimedia Speaker Interface.
Digital Audio Player
The AK4454VN can be evaluated for the digital-to-analog stage of a digital audio player when its confirmed interface, clocking, and analog-output specifications match the source subsystem. The verified record identifies a 32-pin LQFP package but did not return the required electrical parameters on 2026-10-29. Before selecting it, compare the supported digital format, sample rates, master-clock requirements, supply rails, output topology, and distortion against the player's requirements. Layout should follow the manufacturer's reference circuit so that digital return currents, analog grounds, clock routing, and decoupling are controlled around the converter.
推薦
Network Audio Receiver
The AK4454VN is a candidate for a network audio receiver's playback conversion stage, where a digital transport feeds an analog-capable output amplifier. The missing 2026-10-29 verification results prevent confirmation of sample-rate coverage, digital interface format, clocking, channel count, and analog performance. Engineers should first match those parameters to the receiver's transport and output architecture. They should then use the manufacturer reference design to plan LQFP footprint placement, analog trace routing, power distribution, and the transition between digital source circuitry and the downstream amplifier.
推薦
USB Audio Interface
The AK4454VN may be considered in a USB audio interface when the exact datasheet confirms that the USB audio data stream can be converted by its supported digital format and clocking scheme. The 2026-10-29 record did not verify those interfaces or the voltage requirements, so USB descriptor support, endpoint timing, master-clock generation, and channel mapping remain open engineering questions. Prototype work should follow the manufacturer's recommended USB-to-DAC topology and account for the isolated high-speed digital region while preserving clean analog supply and return paths around the LQFP device.
推薦
Professional Audio Monitor Controller
The AK4454VN can be evaluated as the conversion element in a professional audio monitor controller when its verified performance and timing satisfy the signal-chain requirements. Because the 2026-10-29 retrieval returned no resolution, noise, distortion, dynamic-range, clock, or output-loading data, this use remains conditional rather than approved. Design review should compare those parameters with the monitor's sample rates and analog operating level, then implement the manufacturer's filtering, decoupling, grounding, and clock-layout guidance. The 32-pin LQFP footprint must also be checked against the controller's mechanical and thermal constraints.
推薦
Instrumentation Signal Source
The AK4454VN is a candidate for an instrumentation signal source that converts stored digital waveforms into analog outputs for test equipment. The supplied verification data does not confirm bandwidth, settling behavior, linearity, output noise, clock jitter requirements, or allowable loading, all of which can determine suitability for precision measurements. Before using it in a generator, obtain the exact datasheet and confirm waveform accuracy, output range, synchronization, and calibration needs. PCB implementation should include stable supplies, low-noise references where required, controlled grounding, and analog output routing based on the manufacturer's reference design.
推薦
Multimedia Speaker Interface
The AK4454VN may be used in a multimedia speaker interface when the digital source, DAC, and output-amplifier architecture are reconciled using verified data. The 2026-10-29 retrieval did not provide the operating voltages, supported formats, output swing, or load capability needed to approve this application. Engineers should compare the converter's output characteristics with the downstream amplifier input and verify that channel mapping and sampling-rate conversion are acceptable. Layout must keep the analog section separate from digital switching activity and implement the manufacturer's grounding and decoupling arrangement around the 32-pin LQFP footprint.
推薦
推薦產品摘要
工程參考資料，適用於 AK4454VN — 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 | AK4454EN |
|---|---|---|
| Brand | Asahi Kasei Microdevices | Asahi Kasei Microdevices |
| Package | 32-pin LQFP | 32-pin LQFP - subject to exact-datasheet confirmation |
主要差異化特點
- Exact orderable identification (對比AK4454EN)
- 32-pin LQFP integration (對比AK4454EN)
- Transparent verification status (對比AK4454EN)
設計說明
Do not infer compatibility from the AK4454 family name or the shared 32-pin LQFP package alone. The exact AK4454VN pinout, electrical limits, and ordering suffix must be checked against the manufacturer datasheet before schematic capture. This is particularly important for power pins, ground references, digital clock inputs, configuration pins, and analog outputs, where a wrong assumption can produce an inoperable or damaged board.
Use the manufacturer's recommended PCB stack-up, footprint, copper, and placement guidance once the exact AK4454VN documentation is available. Place the device where analog outputs can connect to their downstream circuitry without traversing digital clock or data return paths. Keep switching-regulator and high-current digital routes away from the analog output region, and follow the datasheet's prescribed decoupling connections and component placement.
Treat clock and digital audio interfaces as high-speed signals even though the final impedance and timing requirements could not be verified. Confirm supported clock modes, edge requirements, signal levels, and routing guidance in the exact datasheet. Avoid adding filtering or level conversion until interface compatibility is established, because incorrect termination or logic thresholds can prevent reliable data capture even when the physical footprint is correct.
Do not power the AK4454VN from assumed voltage rails. The 2026-10-29 verification record contains no supply-voltage specification, so the digital and analog rails must be checked against the exact ordering documentation. In the final design, separate noisy switching energy from sensitive analog supply paths, follow the prescribed bypass-capacitor network, and confirm startup sequencing and power-supply tolerance against the manufacturer's recommended circuit.
合規資訊
The supplied verification search timed out on 2026-10-29 and did not return a manufacturer compliance declaration. Compliance claims require the current material compliance statement for the exact AK4454VN orderable code.
