AK4384ET - 24-Bit 192kHz Stereo DAC | Asahi Kasei
MPN： AK4384ET ✗ 停產AK4384ET 概覽
An audio DAC is a signal-conversion integrated circuit in the ADC/DAC category. Its function is to transform digital audio samples into an analog voltage suitable for a downstream headphone amplifier, line amplifier, mixer, or speaker system. Within the broader semiconductor hierarchy, an AK4384ET DAC belongs to the ADC/DAC class of data-conversion ICs, where resolution, dynamic range, linearity, clocking, and output filtering determine how faithfully digital audio is reproduced.
The AK4384ET provides a 24-bit conversion resolution, 106 dB dynamic range, and support for sampling rates through 192 kHz. Its two-channel architecture allows simultaneous stereo playback while reducing the number of external conversion devices required. The manufacturer describes the device as a cost-and-performance solution for audio systems and uses a multibit modulator architecture to preserve linearity and improve THD+N performance.
The AK4384ET uses AKM's multibit DAC architecture rather than being characterized as a basic one-bit converter. This architecture is designed to balance wide dynamic range with improved linearity. Digital audio enters through I2S-compatible logic, while the analog output stage requires appropriate filtering and signal-chain design to achieve the intended channel separation, distortion, and noise performance in the finished equipment.
Typical applications include compact digital audio players, consumer audio equipment, digital mixing consoles, computer-audio accessories, and other stereo playback products. The 16-pin TSSOP package supports conventional surface-mount assembly, while the 192 kHz capability accommodates applications that require high-resolution PCM source material. Integration into a complete product also requires correct clocking, grounding, output filtering, and analog-output implementation.
During PCB design, place the device close to its digital-audio source and analog output circuitry to minimize sensitive-signal routing lengths. Follow the manufacturer pin-description table for power, ground, clock, data, and analog-output connections. Decoupling and analog-filter component values should be taken directly from the manufacturer reference circuit rather than inferred from generic audio-DAC layouts.
This page consolidates the exact AK4384ET identity, package information, resolution, channel count, sampling-rate capability, and documented conversion characteristics into an engineering-focused selection guide. It also separates confirmed attributes from parameters that require confirmation from the manufacturer datasheet, helping designers assess fit before beginning a layout, prototype, or production qualification.
直接替換替代品，適用於 AK4384ET — 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。
此產品無可直接替換的替代品。
申請替代品AK4384ET 最大額定值與電氣特性
| Product Type | Stereo audio digital-to-analog converter |
| Manufacturer | Asahi Kasei Microdevices |
| Number of Channels | 2 channels |
| 解析度 | 24 bit |
| Maximum Sampling Rate | 192 kHz |
| Dynamic Range | 106 dB |
| Digital Audio Interface | I2S |
| DAC Architecture | Multibit architecture |
| 封裝 | 16-pin TSSOP |
| Package Pitch | 0.65 mm |
| 工作溫度 | -20°C to +85°C |
| 安裝類型 | Surface mount |
AK4384ET 0.65 mm 腳位配置指南
AK4384ET（0.65 mm 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： AK4384ET.
請參閱 資料表 以查看完整腳位配置。
典型應用
AK4384ET 適用於 6 應用s: Compact Digital Audio Player, Computer Audio Accessory, Digital Mixing Console Output, High-Resolution Audio Interface, Digital Audio Recorder Playback Monitor, Consumer Stereo Amplifier System.
Compact Digital Audio Player
The AK4384ET fits a compact digital audio player because it combines 24-bit resolution, two-channel playback, and operation up to 192 kHz in a 16-pin TSSOP. Its I2S interface accepts digital samples from an audio decoder or USB audio interface, while the multibit DAC architecture targets a balance of dynamic range and THD+N performance. Place the converter close to the analog output network to keep the dual-channel signal path compact, and design the reconstruction filter, clock source, supply decoupling, and line-output amplifier around the manufacturer reference circuit.
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Computer Audio Accessory
The AK4384ET is suitable for a computer-audio accessory requiring a dedicated high-resolution stereo output stage. Its I2S interface supports digital audio commonly used by audio engines and USB-to-I2S conversion paths, while 24-bit resolution and a maximum 192 kHz sampling rate support high-resolution source material. The 106 dB dynamic-range figure gives the design target needed to preserve low-level musical detail. Keep clocks and data routing controlled, use a short ground return, and follow the manufacturer output-filter recommendations to prevent digital switching energy from reaching the analog stage.
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Digital Mixing Console Output
The AK4384ET can serve as a high-resolution stereo monitoring or auxiliary output in a digital mixing console. Two-channel operation supports conventional left and right routing, while 24-bit conversion and operation through 192 kHz suit modern high-resolution mixing workflows. The 16-pin TSSOP package allows placement on a compact mixed-signal board, although careful partitioning between digital control, clock distribution, and analog outputs remains essential. Validate output level, filtering, grounding, and clock topology against the manufacturer reference design before production use.
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High-Resolution Audio Interface
The AK4384ET is appropriate for the stereo playback side of a high-resolution audio interface. The I2S input, 24-bit resolution, 192 kHz maximum sampling rate, and 106 dB dynamic range align with interfaces designed to preserve high-resolution PCM content. It is especially useful where the system needs a DAC separate from a mixed-signal audio codec. The designer must still establish clock, supply, and analog-output filtering requirements from the manufacturer datasheet, and should verify that the host controller can provide the required data and clock signals.
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Digital Audio Recorder Playback Monitor
The AK4384ET can provide a dedicated stereo monitoring output in a digital recording product or playback-monitor system. Its two-channel architecture supports left and right monitoring, while the 24-bit format and 192 kHz capability allow the playback section to support high-resolution recordings. The multibit architecture is intended to maintain linearity and improve THD+N, which is valuable when the monitor output is used for critical listening. Keep the converter and analog output network isolated from motors, relays, display circuitry, and switching-power stages to minimize noise injection.
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Consumer Stereo Amplifier System
The AK4384ET fits a consumer stereo amplifier system that receives digital audio and requires a separate high-resolution conversion stage. Its I2S interface, 24-bit resolution, two-channel output, and 192 kHz support provide a clear conversion target for CD, network, USB, or other digital sources. The DAC output should feed the amplifier's line or gain stage through the filtering network specified by the manufacturer. Maintain short analog traces, use a quiet power supply, and provide clean clocking so switching noise does not degrade the documented 106 dB dynamic range.
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推薦產品摘要
工程參考資料，適用於 AK4384ET — 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 |
|---|---|
| Brand | Asahi Kasei Microdevices |
| Package | 16-pin TSSOP, 0.65 mm pitch |
| Product Type | Stereo audio DAC |
| Resolution | 24 bit |
| Number of Channels | 2 channels |
| Maximum Sampling Rate | 192 kHz |
| Dynamic Range | 106 dB |
| Digital Audio Interface | I2S |
| DAC Architecture | Multibit architecture |
| Operating Temperature | -20°C to +85°C |
主要差異化特點
- High-resolution stereo conversion (對比Generic 16-bit stereo DAC)
- Supports high-rate digital audio (對比A 48 kHz or 96 kHz DAC)
- Multibit conversion architecture (對比Basic one-bit DAC architecture)
設計說明
Place the AK4384ET close to the I2S source, clock circuitry, and analog output network. Route digital audio and clock signals away from both analog outputs and their reconstruction filters, and keep the ground return beneath the device continuous. Because the package uses a 0.65 mm lead pitch, confirm the land pattern against the package drawing, evaluate solder bridging during prototyping, and maintain assembly-line capability for the fine-pitch TSSOP footprint.
Separate the quiet analog supply path from digital loads, switching regulators, clock circuitry, and display or relay currents. Place local decoupling at the device's supply pins with short ground connections and use the capacitor types and values shown in the manufacturer reference circuit. Do not select a supply voltage or regulator from generic audio-DAC assumptions; verify the permitted range, sequencing, and current consumption in the electrical-characteristics tables before committing to the power architecture.
Implement the manufacturer's recommended analog reconstruction or low-pass filtering for the selected sampling mode, and confirm the clock-to-data timing relationship with the system controller. Keep I2S data, word-select, and clock traces away from sensitive analog nodes. Use a continuous reference plane and carefully control return paths so clock or switching energy is not injected into the stereo outputs, where it can degrade channel separation and THD+N even when the DAC itself operates within specification.
合規資訊
The manufacturer datasheet states that product specifications and availability are subject to change and recommends confirming current status with AKM or its sales office. No specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was established in the available records.