PCM55HP - 16-Bit Audio DAC | Texas Instruments
N.º de pieza: PCM55HP ✗ Fin de vidaPCM55HP Descripción general
A digital-to-analog converter, or DAC, converts digital code values into proportional voltage or current. A parallel DAC accepts several bits simultaneously, making it suitable for systems in which a processor or digital audio interface can present a complete conversion word within the converter’s acquisition interval. The PCM55HP belongs to the broader semiconductor and signal-conversion hierarchy: DAC, data converter, interface IC, and audio signal-processing component.
The PCM55HP combines a 16-bit parallel input stage, a current-switched resistor network, an internal low-noise reference, and an output amplifier on one monolithic IC. The manufacturer material identifies parallel input format, 16-bit resolution, 15-bit typical monotonicity, ±1 mA audio output, 92 dB THD for the K grade, 96 dB dynamic range, and operation from ±12 V supplies. These specifications place the device in the audio DAC category rather than in general-purpose low-power or high-speed converter families.
Typical uses include digital audio playback, audio synthesis, sound-generation instruments, test equipment, and legacy audio systems. The parallel data interface can simplify connection to a suitable digital source, while the analog output requires appropriate output-network and signal-conditioning design. Because the device is a high-voltage, multi-supply audio converter, system designers should verify signal levels, grounding, bypass capacitors, and output-load requirements against the manufacturer datasheet before production use.
A key design consideration is supply and analog-output implementation. The PCM55HP uses positive and negative power rails, so the circuit must provide adequate bypassing and maintain a clean reference ground. The output stage and external reconstruction or filtering network should be designed to preserve the converter’s intended audio bandwidth and distortion performance.
This page consolidates the verified PCM55HP identity, datasheet links, sourcing information, package data, and design-oriented guidance into one engineering reference. It also distinguishes verified manufacturer information from parameters that require confirmation for the exact grade, package variant, sourcing channel, or system configuration.
Alternativas directas para PCM55HP — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
PCM55HP/1K
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PCM55HPG6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PCM55HP/1KG6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PCM55HP/1K
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PCM55HPG6
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PCM55HP Valores máximos y características eléctricas
| Product Type | 16-bit monolithic digital-to-analog converter |
| Input Format | Parallel |
| Resolución | 16 bits |
| Typical Monotonicity | 15 bits |
| THD, K Grade | 92 dB |
| Dynamic Range | 96 dB |
| Settling Time | 3 µs |
| Tipo de salida | ±1 mA audio output |
| Tensión de alimentación | ±12 V |
| Encapsulado | 24-pin SOP |
| Package Pin Count | 24 pins |
| Tipo de montaje | Surface mount |
| Terminal Form | Gull wing |
| Temperature Grade | Commercial |
| Channel Count | 1 channel |
| Data Interface | 16-bit parallel |
Guía de configuración de pines de PCM55HP 24 pins
Configuración de pines para PCM55HP (encapsulado 24 pins). Este componente analógico presenta pines de entrada, salida y alimentación. Consulte la hoja de datos del fabricante para conocer las configuraciones de los pines de ajuste de offset, compensación y habilitación. Ideal para circuitos de acondicionamiento de señal y amplificadores.
No hay datos detallados de patillaje disponibles para PCM55HP.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
PCM55HP es adecuado para 6 aplicacións: Digital Audio Playback, Audio Signal Synthesis, Instrument and Test-Signal Generation, Sound-Card and Legacy Audio Systems, Broadcast and Audio Processing, Precision Analog Signal Conversion.
Digital Audio Playback
The PCM55HP fits legacy digital audio playback systems that can present a 16-bit parallel word to the converter. Its 16-bit resolution, 3 µs settling time, and ±1 mA audio output provide a defined conversion path from digital source data to an analog audio signal. The design must include compatible parallel data timing, ±12 V supplies, output loading, and reconstruction filtering. Because the verified information describes a bipolar analog output, the external signal path should be designed around current-mode operation rather than assuming an ordinary voltage-output DAC.
Recomendado
Audio Signal Synthesis
The PCM55HP can serve as the final conversion stage in an audio synthesizer or digital sound-generation instrument. Its 16-bit parallel interface allows the system controller to update the converter word directly, while the 3 µs settling time helps define the allowable update interval. The key engineering concern is maintaining a clean analog path around the ±1 mA output and ±12 V rails. External filtering, grounding, and output-stage design should be validated for the required bandwidth and distortion target.
Recomendado
Instrument and Test-Signal Generation
The PCM55HP is relevant to test and measurement equipment that generates controlled audio waveforms from parallel digital data. Its 16-bit resolution provides a defined code width, and its manufacturer-listed 96 dB dynamic range can support precise low-level signal generation when the complete external circuit is designed consistently. The bipolar supply arrangement and current output require careful reference grounding and filtering. Before using it in an instrument, verify settling behavior, output linearity, load impedance, and calibration requirements with the exact grade datasheet.
Recomendado
Sound-Card and Legacy Audio Systems
The PCM55HP is suited to older sound-card, digital-audio interface, and laboratory audio designs that expose a parallel digital bus. Its 24-pin SOP package and parallel input architecture align with systems designed around older converter families rather than compact serial-audio DACs. The design advantage is straightforward parallel connection; the trade-off is the need for dual high-voltage supplies and a carefully designed analog output network. Confirm pinout, timing, and package land pattern from the manufacturer documentation before replacing an existing converter.
Recomendado
Broadcast and Audio Processing
The PCM55HP may be used in specialized broadcast or audio-processing equipment where a parallel converter interface and analog current output are acceptable. Its 92 dB THD specification for the K grade and 96 dB dynamic range provide useful design targets, but actual system performance depends on the output stage, reconstruction network, clocking, and power-supply implementation. The device is not a modern digital audio interface solution, so it is most appropriate where the existing architecture already supports parallel data and bipolar analog circuitry.
Recomendado
Precision Analog Signal Conversion
The PCM55HP can be considered for precision analog signal conversion when the application accepts its 16-bit parallel architecture and bipolar output stage. The verified specifications include 15-bit typical monotonicity and 3 µs settling time, which help define conversion resolution and timing. The circuit should minimize digital-to-analog crosstalk by keeping clock and data routing controlled, while preserving the converter’s reference and output networks. Exact monotonicity, linearity, reference accuracy, and temperature limits must be confirmed from the complete manufacturer datasheet for the selected grade.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PCM55HP — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Diferenciadores clave
- Parallel input architecture (frente a PCM55HP/1K)
- Specified audio performance (frente a PCM55HPG6)
- Same-package sourcing variants (frente a PCM55HP/1KG6)
Notas de diseño
Design the supply rails and bypass network for the PCM55HP’s ±12 V bipolar operating requirement. Place low-inductance bypass capacitors close to the supply pins and provide a quiet return path for the analog output. Because the verified material does not include exact decoupling values, derive them from the complete manufacturer datasheet rather than using generic values. Check startup, rail sequencing, and ground offsets before enabling the converter.
Route the 16-bit parallel data bus away from sensitive analog output and supply-return paths. Use a consistent source timing budget based on the verified 3 µs settling time, and keep data lines sufficiently short to avoid introducing excessive skew between bits. The PCM55HP is a legacy parallel-interface device, so processor fanout and connector routing can materially affect data integrity and converter noise.
Do not treat PCM55HP, PCM55HP/1K, PCM55HPG6, or PCM55JP as interchangeable solely because the family names are similar. Confirm the complete ordering code, package, pinout, supply requirements, output circuit, temperature grade, and timing before substitution. The verified data supports same-family 24-SO variants but does not provide enough information to certify every listed candidate as a universal drop-in replacement.
Información de cumplimiento
The supplied verified data does not provide current RoHS, REACH, lead-free, halogen-free, or conflict-minerals statements for PCM55HP. The product is listed as commercial-grade by a distributor result, but this does not establish AEC-Q100 qualification.
