PCM55JP - 16-Bit Audio DAC with ±1mA Output | Texas Instruments
部品番号: PCM55JP ✗ 生産終了PCM55JP 概要
A digital-to-analog converter, or DAC, converts parallel digital samples into a proportional analog voltage or current. The PCM55JP belongs to the broader converter hierarchy: DAC → digital-to-analog converter → data converter → mixed-signal semiconductor. Its audio-oriented current output is useful in classic audio signal chains where an external current-to-voltage conversion or reconstruction stage is acceptable and where a legacy parallel interface is already present.
Key verified features include 16-bit resolution, 15-bit typical monotonicity, 3 microsecond settling time, 96 dB dynamic range, and operation on ±12 V supplies for the related PCM54 designation identified in the datasheet search result. The PCM55JP uses a parallel input format, which simplifies connection to older digital audio buses and dedicated digital-to-analog interface logic. Its 24-pin SOP package makes it physically distinct from modern compact audio DAC packages.
The supplied data identifies PCM55JP as obsolete in one distributor listing and as a commercial-grade converter. The available information does not state a current authorized distributor price, confirmed stock, or a manufacturer landing-page URL, so purchasing should be treated as obsolete-part or brokerage activity rather than a standard active-stock procurement. Any replacement must be checked carefully for interface voltage, supply rails, pinout, package, output current, settling time, and system-level polarity.
Typical uses include legacy digital audio equipment, audio test systems, instrumentation, and equipment designed around a parallel 16-bit DAC. The device is not a USB or I2S audio converter, and it is not intended to be treated as a modern low-noise integrated power-management component. Its value is primarily architectural compatibility with an existing parallel data path.
Designers should preserve the original datasheet’s supply decoupling and output-stage recommendations, verify the exposed package orientation, and account for the converter’s current-output behavior. Do not assume that any 16-bit DAC is interchangeable: modern serial-interface DACs usually require a different footprint and digital protocol.
This page consolidates verified datasheet-search information, sourcing constraints, package details, and replacement requirements for engineers evaluating the obsolete PCM55JP.
ドロップイン代替品: PCM55JP — 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。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストPCM55JP 最大定格＆電気的特性
| Device Type | Monolithic digital-to-analog converter |
| 分解能 | 16 bit |
| Number of Channels | 1 channel |
| Input Interface | Parallel |
| Typical Monotonicity | 15 bit |
| Total Harmonic Distortion | -92 dB for K grade |
| Settling Time | 3 microseconds |
| Dynamic Range | 96 dB |
| Audio Output | ±1 mA |
| 電源電圧 | ±4.75 V to ±7.5 V |
| Related PCM54 Supply Operation | ±12 V |
| パッケージ | 24-pin SOP |
| 実装タイプ | Surface mount |
| 動作温度 | 0°C to 70°C |
| Temperature Grade | Commercial |
| RoHS ステータス | Compliant according to one verified distributor listing |
| ライフサイクル状態 | Obsolete according to verified distributor data |
| Manufacturer | Burr-Brown, Texas Instruments |
PCM55JP 24-pin sop ピン配置ガイド
PCM55JP (24-pin sop 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: PCM55JP.
詳細は データシート をご参照ください。
主な用途
PCM55JP の用途: 6 件s: Legacy Parallel Digital Audio, Audio Test and Measurement, Parallel Digital Instrumentation, Audio Amplifier Evaluation, Educational Audio Converter Demonstration, Legacy Audio Equipment Repair.
Legacy Parallel Digital Audio
PCM55JP is suitable when an existing audio system already presents a 16-bit parallel digital sample stream and expects a ±1 mA analog current output. Its 3 microsecond settling time and 96 dB dynamic range support classic digital audio reconstruction paths, while the parallel interface avoids the protocol conversion required by serial DACs. The system must provide the correct dual supplies, clocking, latch timing, and output conversion stage. Because PCM55JP is obsolete, this application is most appropriate for maintenance, restoration, or specially controlled legacy production rather than new high-volume designs.
おすすめ
Audio Test and Measurement
The PCM55JP can serve as a fixed-function signal source in legacy audio test equipment where a parallel digital bus and current-output DAC are already part of the architecture. Its 16-bit resolution, 96 dB dynamic range, and -92 dB K-grade THD provide useful conversion figures for evaluating downstream amplification, filtering, and reconstruction circuits. The 3 microsecond settling specification is relevant when evaluating step responses and sample-rate-dependent behavior. Engineers should verify calibration, output scaling, grounding, and supply bypass against the original datasheet and account for the part’s obsolete status.
おすすめ
Parallel Digital Instrumentation
PCM55JP is applicable to older instrumentation that generates or reconstructs analog test signals from a parallel digital word. Its one-channel architecture and parallel input make it suitable only when the source logic can meet the device’s timing and voltage requirements. The ±1 mA output can feed an appropriate current-to-voltage or current-summing stage, while the dual supply supports bipolar analog headroom. Because the verified data does not provide complete pin timing or absolute maximum ratings, the original datasheet and an evaluated reference circuit are mandatory before hardware release.
おすすめ
Audio Amplifier Evaluation
PCM55JP can be used to evaluate classic audio amplification stages by providing a repeatable digital-to-analog stimulus before the amplifier and filtering network. The converter’s reported 96 dB dynamic range and -92 dB K-grade THD are useful when evaluating whether downstream noise or distortion dominates the measurement. Its 3 microsecond settling time also helps characterize transient behavior in sampled test sequences. The ±1 mA output is not a conventional voltage output, so the external reconstruction and current-to-voltage circuitry must be designed carefully. Obsolete-part sourcing should be separately controlled.
おすすめ
Educational Audio Converter Demonstration
PCM55JP is useful for an educational demonstration of how a parallel digital word becomes an analog audio signal. The 16-bit resolution, parallel interface, and current output provide a clear teaching example of digital-to-analog conversion, code-to-current scaling, reconstruction filtering, and bipolar supply requirements. A laboratory system can use the converter with a suitable output amplifier and low-pass filter, while students observe settling behavior and distortion. The obsolete designation should be disclosed, and instructors should avoid implying that the component is a recommended modern platform.
おすすめ
Legacy Audio Equipment Repair
PCM55JP is most defensible in repair and restoration of equipment designed around its original 24-pin SOP parallel DAC architecture. A direct replacement should be selected only after comparing the pinout, supply tolerances, digital interface levels, output current, settling time, and analog output polarity. The verified data reports obsolete status, so procurement may involve tested surplus or specialty sourcing rather than a normal distributor allocation. Before installation, inspect the original device for damage, verify socket or solder-joint integrity, and confirm that the replacement lot has acceptable noise and distortion performance.
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: PCM55JP — 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 |
|---|---|
| Package | 24-pin SOP |
| Brand | Texas Instruments / Burr-Brown |
| Device Type | Monolithic digital-to-analog converter |
| Resolution | 16 bit |
| Input Interface | Parallel |
| Typical Monotonicity | 15 bit |
| Dynamic Range | 96 dB |
| Audio Output | ±1 mA |
| Supply Voltage | ±4.75 V to ±7.5 V |
| Settling Time | 3 microseconds |
| Operating Temperature | 0°C to 70°C |
| Lifecycle Status | Obsolete |
主な差別化要因
- Legacy parallel architecture （vs PCM55HP)
- Documented converter performance （vs PCM55HP/1K)
- Known obsolete identity （vs PCM5102APWR)
設計ノート
Use the verified PCM55JP supply range of ±4.75 V to ±7.5 V as the design envelope, and confirm the exact polarity and tolerance against the manufacturer datasheet. Dual supplies are central to the converter’s bipolar analog output capability; do not substitute a single supply without redesigning the analog output bias. Place local bypass capacitors close to the supply pins using the manufacturer’s recommended values and layout. Treat the related PCM54 ±12 V reference as context, not as a PCM55JP supply authorization.
The verified package description is a 24-pin SOP with gull-wing terminals, but the supplied excerpts do not include a complete package drawing or pin map. Before layout release, obtain the datasheet and verify every pin number, orientation mark, analog output, digital input, latch signal, supply, and ground connection. Preserve the recommended analog trace geometry and keep digital input routing away from the current-output and reconstruction-filter nodes. Do not rely on a generic SOP symbol without checking the mechanical drawing.
PCM55JP is obsolete and uses a legacy parallel interface, so it should not be treated as a generic modern 16-bit DAC. A replacement must match the 24-pin footprint, pin functions, parallel timing, dual-supply requirements, ±1 mA output behavior, and system polarity. PCM55HP and PCM55HP/1K appeared in search comparisons, but the supplied excerpts do not prove pin-to-pin compatibility. Validate any proposed substitute with the manufacturer datasheet, timing measurements, and system-level distortion testing.
コンプライアンス情報
One verified distributor result identifies PCM55JP as lead-free and RoHS compliant. The supplied data does not establish REACH, AEC-Q100 qualification, halogen-free status, or conflict-minerals compliance.
