PCM54JP - 16-Bit Audio DAC | Texas Instruments
MPN： PCM54JP ✗ 停產PCM54JP 概覽
What is a digital-to-analog converter? A DAC is an analog mixed-signal integrated circuit that converts a digital code into a proportional voltage or current. In an audio system, the PCM54JP sits between a digital audio engine and an analog amplification or speaker-output stage. Its 16-bit parallel interface supports digital word transfer from audio processors, while its current-output architecture provides a signal suitable for the external analog reconstruction and output circuitry required by high-fidelity equipment.
The PCM54JP provides the following verified headline characteristics: 16-bit resolution, 15-bit typical monotonicity, approximately −92 dB total harmonic distortion for the K grade, 3 µs settling time, and 96 dB dynamic range. The verified listing describes a 28-pin DIP package and audio DAC function. These specifications make the device relevant to digital audio equipment, signal-generation systems, and laboratory audio designs where multi-bit parallel conversion is preferred.
Technically, the PCM54JP belongs to the special-purpose DAC category rather than a general-purpose data converter. Its parallel input format differs from serial audio DAC interfaces such as I2S or left-justified serial formats, so the host digital system must provide the correct 16-bit word arrangement and timing. The stated ±12 V supply operation indicates a dual-supply analog architecture and requires careful bypassing and grounding to preserve low-level audio performance.
Typical uses include CD-player and digital-audio signal paths, professional audio conversion equipment, audio synthesis systems, test instruments, and custom high-resolution audio projects. The device is most appropriate when the existing PCB already uses its 28-pin DIP footprint and when the design can provide the required parallel data bus and analog output network.
The primary design consideration is interface verification. Before using PCM54JP, compare the exact pinout, input coding, settling requirements, and output-current expectations against the original circuit. Do not assume that a converter with similar resolution is interchangeable. For a new design, evaluate modern serial-interface DACs when fewer pins and simpler routing are more important than legacy parallel-interface compatibility.
This page combines the verified PCM54JP identity, package, resolution, audio performance, sourcing links, and application guidance. Detailed pricing, pin-level electrical limits, and verified drop-in substitutions remain limited by the supplied data.
直接替換替代品，適用於 PCM54JP — 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： PCM54JP （相同外形與佔位） — 差異在於 Converter Type, Output Type, Settling Time.
PCM54HP
✅ 直接替換聯絡詢價
查看資料表 →PCM54HP-J
✅ 直接替換📋 參考替代品（不在目錄中）
PCM54HP-K
✅ 直接替換📋 參考替代品（不在目錄中）
PCM54JP 最大額定值與電氣特性
| Product Type | 16-bit monolithic digital-to-analog converter |
| 解析度 | 16 bit |
| Monotonicity | 15 bit typical |
| Total Harmonic Distortion | −92 dB for K grade |
| Settling Time | 3 µs voltage output |
| Dynamic Range | 96 dB |
| Audio Output | ±1 mA |
| 供應電壓 | ±12 V |
| Input Format | Parallel input |
| Converter Type | Audio DAC |
| 輸出類型 | Current output |
| Package Type | 28-pin DIP, through-hole |
| 安裝類型 | Through-hole |
PCM54JP 28-pin dip, through-hole 腳位配置指南
PCM54JP（28-pin dip, through-hole 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： PCM54JP.
請參閱 資料表 以查看完整腳位配置。
典型應用
PCM54JP 適用於 6 應用s: High-Fidelity Digital Audio, CD-Player Signal Path, Professional Audio Conversion, Audio Test and Measurement, Digital Audio Synthesis, Legacy Audio Equipment Retrofit.
High-Fidelity Digital Audio
PCM54JP fits a high-fidelity digital-audio conversion stage because it provides a 16-bit DAC interface, 96 dB dynamic range, and a ±1 mA audio output. The parallel input can be driven by a digital audio engine when the original system architecture uses a multi-bit parallel bus. The design must include the correct reconstruction network and analog output stage, while the dual ±12 V supplies require careful bypassing. Compared with a basic low-power DAC, the device is intended for audio-quality signal generation rather than simple embedded playback.
推薦
CD-Player Signal Path
PCM54JP is suitable for a legacy CD-player DAC path when the source controller supplies the expected 16-bit parallel data and the board uses the corresponding PCM54 interface. Its 3 µs voltage-output settling time and 96 dB dynamic range are relevant to audio reconstruction, while the ±1 mA output requires the correct analog current-to-voltage network. Because the supplied data does not provide a complete PCM54 pinout, preserve the original PCB and verify every signal and supply connection before modifying the board.
推薦
Professional Audio Conversion
PCM54JP can be used in professional audio conversion equipment where a parallel DAC architecture is acceptable and high-resolution performance is more important than a minimal package. The verified 16-bit resolution, −92 dB K-grade THD, and 96 dB dynamic range provide useful design targets for audio signal generation. Its 28-pin DIP package is appropriate for a through-hole or legacy retrofit board, but not for a new compact surface-mount design without a footprint change.
推薦
Audio Test and Measurement
PCM54JP is applicable to audio test equipment that generates a known digital-to-analog waveform for signal-chain evaluation. A digital controller can present the device's parallel data code, and the analog output stage can be monitored with an oscilloscope or audio analyzer. The 3 µs settling specification helps characterize system response, while the 96 dB dynamic-range figure provides an audio-performance reference. Use appropriate reconstruction and output-current circuitry before connecting the converter to external equipment.
推薦
Digital Audio Synthesis
PCM54JP can serve as the DAC element in a custom audio synthesizer when a parallel digital bus and dual analog supplies are available. The 16-bit input resolution supports detailed waveform generation, and the specified audio output current is suitable for a carefully designed external analog stage. The converter is best suited to experimental or retrofit platforms rather than compact portable systems, since its 28-pin DIP package and ±12 V analog supply arrangement increase board-space and power requirements.
推薦
Legacy Audio Equipment Retrofit
PCM54JP is most practical for repairing or updating an existing 28-pin DIP audio converter board when the original design already uses the parallel interface and ±12 V supply arrangement. The DIP package simplifies through-hole replacement compared with a surface-mount DAC, and the verified 16-bit resolution supports restoration of older digital-audio functions. Before installation, verify the exact pinout, input coding, analog output network, supply tolerances, and safe handling requirements from the complete manufacturer datasheet.
推薦
推薦產品摘要
工程參考資料，適用於 PCM54JP — 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 | PCM54HP | PCM54HP-J | PCM54HP-K |
|---|---|---|---|---|
| Package | 28-pin DIP | DIP-28 candidate; exact package verification required | DIP-28 candidate; exact package verification required | DIP-28 candidate; exact package verification required |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
主要差異化特點
- Parallel 16-bit audio conversion interface (對比PCM54HP)
- Verified audio performance figures (對比PCM54HP-J)
- 28-pin DIP retrofit compatibility (對比PCM54HP-K)
設計說明
Route the 16-bit parallel bus away from analog output and supply-current paths, and keep the converter’s analog return path close to its bypass network. Because the verified PCM54JP uses a parallel input and ±1 mA audio output, digital switching and sensitive analog reconstruction should not share narrow return paths. The supplied data does not include a reference PCB layout, so use the manufacturer application guidance for final placement and grounding.
Plan the ±12 V supply rails and decoupling around the exact absolute maximum and recommended operating conditions in the manufacturer datasheet. PCM54JP is a dual-supply legacy audio converter, so inadequate rail bypassing can directly affect noise, settling, and output stability. Confirm whether the application requires separate analog and digital grounds and how they should be connected. No supply-current or maximum-voltage values were supplied, so do not estimate them for thermal design.
Treat the parallel input as a timing-sensitive digital interface rather than connecting it as ordinary static logic. Verify edge requirements, data setup and hold behavior, and any latch or control timing against the complete PCM54 datasheet. The verified snippets provide resolution and settling information but not full timing tables. A legacy board should preserve the original bus topology and probing points whenever possible.
Do not assume that PCM54HP, PCM54HP-J, or PCM54HP-K is a drop-in replacement merely because the comparison search results identify the same PCM54 family. Package name alone does not prove pin compatibility, supply compatibility, digital coding equivalence, or output-stage equivalence. Confirm the manufacturer ordering code, pinout, absolute maximum ratings, and analog network before substitution.
合規資訊
The supplied search results do not provide compliance declarations for PCM54JP. Obtain current manufacturer or authorized-distributor documentation for the exact ordering code.
