PCM54HP - 16-Bit Audio DAC | Texas Instruments
部品番号: PCM54HP ✗ 生産終了PCM54HP 概要
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.
ドロップイン代替品: PCM54HP — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PCM54HP （同一形状・フットプリント） — 相違点: Converter Type, Output Type, Settling Time.
PCM54HP-J
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PCM54HP-K
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PCM54HP 最大定格＆電気的特性
| Converter Type | Monolithic digital-to-analog converter |
| 分解能 | 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 |
| パッケージ | 28-pin DIP, 0.600 inch, 15.24 mm |
| 実装タイプ | Through-hole |
| Temperature Grade | Commercial |
| 出力タイプ | Audio current output |
| AEC-Q100 Qualification | Not applicable or not stated |
| ピン数 | 28 pins |
PCM54HP 28-pin dip, 0.600 inch, 15.24 mm ピン配置ガイド
PCM54HP (28-pin dip, 0.600 inch, 15.24 mm パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: PCM54HP.
詳細は データシート をご参照ください。
主な用途
PCM54HP の用途: 6 件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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PCM54HP — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Legacy parallel audio DAC architecture （vs PCM5102APWR)
- Through-hole 28-pin DIP integration （vs PCM54HP-J)
- Documented K-grade distortion reference （vs PCM54HP-J)
設計ノート
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.
コンプライアンス情報
The verified data does not provide explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements for PCM54HP.
