PCM54HP - 16-Bit Audio DAC | Texas Instruments
料号： PCM54HP ✗ 停产PCM54HP 概述
A DAC is an integrated circuit that converts digital data into a proportional analog voltage or current. PCM54HP belongs to the ADC/DAC and data-converter hierarchy, specifically the audio DAC category. Its parallel interface accepts multi-bit digital words directly from a digital audio system, while its current-output stage provides an analog signal for downstream amplification, filtering, or speaker-driving circuitry. This architecture is characteristic of high-end CD-player and digital-audio designs from the period when PCM54-family converters were widely used.
The verified data highlights 15-bit monotonicity, −92 dB total harmonic distortion for the K grade, 96 dB dynamic range, and a 3 µs voltage-output settling time. These figures describe performance relevant to audio fidelity and signal settling, although the exact test conditions should be taken from the manufacturer datasheet. The PCM54HP designation distinguishes the HP variant, while comparison pages also identify PCM54HP-J and PCM54HP-K variants; those grade-specific alternatives must not be treated as interchangeable without checking the datasheet and application requirements.
Typical uses include digital audio conversion in legacy CD players, high-fidelity CD-player signal paths, external DAC projects, and restoration or repair of older audio equipment. The parallel bus requires careful board routing and grounding because timing, data-bit order, and control signals must match the surrounding digital system. The 28-DIP package is through-hole and rectangular, making it practical for legacy boards but unsuitable for modern compact surface-mount layouts without an adapter or redesign.
The main engineering consideration is that PCM54HP is a precision analog data converter whose usefulness depends on clean power, stable clocks or latch timing, correct digital code alignment, and an appropriate analog output network. Use the manufacturer datasheet for the complete pin map, supply recommendations, analog output connection, and timing limits. This page synthesizes verified distributor and datasheet links, package information, application context, and replacement guidance; it does not infer unverified electrical values.
直接替换替代料： PCM54HP ——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： PCM54HP （相同外形与封装尺寸） ——差异在于 Converter Type, Output Type, Settling Time.
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）
PCM54HP 最大额定值与电气特性
| Converter Type | Monolithic digital-to-analog converter |
| 分辨率 | 16 bit |
| Input Interface | Parallel input |
| Audio Output | ±1 mA |
| Power Supply | ±12 V for PCM54 |
| Monotonicity | 15 bit typical |
| Total Harmonic Distortion | −92 dB for K grade |
| Dynamic Range | 96 dB |
| Settling Time | 3 µs |
| 封装 | 28-pin DIP, 0.600 inch, 15.24 mm |
| 安装类型 | Through-hole |
| Temperature Grade | Commercial |
| 输出类型 | Audio current output |
| AEC-Q100 Qualification | Not applicable or not stated |
| 引脚数量 | 28 pins |
PCM54HP 28-pin dip, 0.600 inch, 15.24 mm 引脚配置指南
PCM54HP（28-pin dip, 0.600 inch, 15.24 mm 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： PCM54HP.
请参阅 数据手册 以查看完整引脚配置。
典型应用
PCM54HP 适用于 6 应用s: Legacy CD-Player Digital Audio Conversion, High-Fidelity External DAC, CD-Player Restoration and Repair, Parallel Digital Audio Interface, Analog Audio Signal Conditioning, Vintage Digital Audio Instrumentation.
Legacy CD-Player Digital Audio Conversion
The PCM54HP fits legacy CD-player signal paths that present a 16-bit parallel digital word and expect a ±1 mA analog audio output. Its verified 3 µs settling time and 96 dB dynamic range support high-fidelity audio reconstruction, while the 28-pin DIP footprint matches through-hole vintage boards. The key design task is preserving the original bus timing, code alignment, and analog output network. Because the supplied data does not include the complete timing table or pin map, verify the exact manufacturer application circuit before modifying a player.
推荐
High-Fidelity External DAC
PCM54HP can serve as the converter in an external DAC built around an existing parallel digital interface. Its 16-bit resolution, 15-bit typical monotonicity, −92 dB K-grade THD figure, and 96 dB dynamic range make it relevant to audio-quality-oriented designs. The ±1 mA output requires a suitable current-to-voltage or audio-output stage, and the ±12 V PCM54 supply arrangement must be reproduced carefully. A modern DAC may be simpler when I2S or USB input is preferred.
推荐
CD-Player Restoration and Repair
PCM54HP is directly relevant to restoring or repairing older CD players that used Burr-Brown or Texas Instruments PCM54-family conversion. Its 28-pin through-hole DIP package and commercial temperature grade are consistent with the verified distributor classification. A restoration should preserve the original analog board topology where possible, verify supply rails and clocking, and compare the replacement suffix with the failed device. The supplied data does not confirm current lifecycle status or guaranteed replacement inventory.
推荐
Parallel Digital Audio Interface
PCM54HP is suitable for systems that already generate a 16-bit parallel bus rather than I2S, USB, or SPI. The verified product listing explicitly identifies a 16-bit parallel input format. Using the converter in a custom interface requires correct bit order, latch or timing relationships, settling allowance, grounding, and decoupling. Since the supplied data omits a complete pinout and timing table, the exact manufacturer datasheet is mandatory before routing a new board.
推荐
Analog Audio Signal Conditioning
The PCM54HP output can feed an analog signal-conditioning chain when its ±1 mA current output is paired with the correct load and filtering network. The verified dynamic-range figure of 96 dB gives designers a concrete performance reference, while the 3 µs settling time helps characterize transient behavior. The exact output topology is not supplied in the verified snippets, so engineers must use the manufacturer application diagram rather than selecting arbitrary resistor or capacitor values.
推荐
Vintage Digital Audio Instrumentation
PCM54HP can be used in specialized vintage digital-audio instrumentation when a parallel-input, current-output DAC is required. Its 16-bit format and through-hole package make it useful for laboratory or archival signal paths, but they also limit integration density and require careful analog layout. The verified data does not state operating-temperature limits, recommended PCB area, or complete decoupling requirements. Those values must be obtained from the exact PCM54HP datasheet before laboratory deployment.
推荐
推荐产品汇总
工程参考数据： PCM54HP ——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-J | PCM54HP-K |
|---|---|---|---|
| Package | 28-pin DIP, 0.600 inch, 15.24 mm | 28-pin DIP | 28-pin DIP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
关键差异点
- Legacy parallel audio DAC architecture （对比 PCM5102APWR)
- Through-hole 28-pin DIP integration （对比 PCM54HP-J)
- Documented K-grade distortion reference （对比 PCM54HP-J)
设计说明
Use the original PCM54HP board layout whenever possible. The verified data confirms a 28-pin DIP format but does not provide the individual pin assignments, so preserve track lengths, pin orientation, analog and digital ground partitioning, and the manufacturer-recommended output network. Do not use PCM54HP-J or PCM54HP-K in a new board until the suffix-specific pinout and electrical limits have been checked.
The verified feature summary identifies ±12 V supplies for the PCM54 family. Confirm the exact positive and negative rail tolerances, sequencing, bypass-capacitor values, and grounding arrangement in the manufacturer datasheet before energizing a repair board. Supply noise or incorrect grounding can directly affect the 96 dB dynamic-range target and the ±1 mA audio output.
Treat the 16-bit parallel bus as a timing-sensitive digital interface. Maintain the recommended bus topology, avoid unnecessary long branches, match data and latch timing to the converter specification, and keep the analog return path away from switching-clock and digital-current paths. The supplied data does not include rise/fall-time or setup/hold limits, so those values must be taken from the exact PCM54HP datasheet.
合规信息
The verified data does not provide explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements for PCM54HP.
