PCM54JP - 16-Bit Audio DAC | Texas Instruments
料号： PCM54JP ✗ 停产PCM54JP 概述
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.
直接替换替代料： PCM54JP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PCM54JP （相同外形与封装尺寸） ——差异在于 Converter Type, Output Type, Settling Time.
PCM54HP
✅ 直接替换联系询价
查看数据手册 →PCM54HP-J
✅ 直接替换📋 参考替代料（不在目录中）
PCM54HP-K
✅ 直接替换📋 参考替代料（不在目录中）
PCM54JP 最大额定值与电气特性
| Product Type | 16-bit monolithic digital-to-analog converter |
| 分辨率 | 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 |
| 电源电压 | ±12 V |
| Input Format | Parallel input |
| Converter Type | Audio DAC |
| 输出类型 | Current output |
| Package Type | 28-pin DIP, through-hole |
| 安装类型 | Through-hole |
PCM54JP 28-pin dip, through-hole 引脚配置指南
PCM54JP（28-pin dip, through-hole 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： PCM54JP.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PCM54JP 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： PCM54JP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Parallel 16-bit audio conversion interface （对比 PCM54HP)
- Verified audio performance figures （对比 PCM54HP-J)
- 28-pin DIP retrofit compatibility （对比 PCM54HP-K)
设计说明
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.
合规信息
The supplied search results do not provide compliance declarations for PCM54JP. Obtain current manufacturer or authorized-distributor documentation for the exact ordering code.
