PCM54JP

ADCs/DACs - Special Purpose Overview

The PCM54JP is a 16-bit monolithic digital-to-analog converter (DAC) designed for high-fidelity audio applications. It features parallel input, 15-bit monotonicity, and a dynamic range of 96 dB. The device operates on dual supplies ranging from ±5V to ±12V and provides ±3V voltage or ±1mA current outputs. Packaged in a 28-pin DIP, it includes an internal zener reference and adjustable MSB error circuitry to minimize differential linearity error at bipolar zero.

ADCs/DACs - Special Purpose Feature Summary

• 16-bit resolution with 15-bit guaranteed monotonicity
• Parallel digital input interface compatible with TTL/CMOS logic
• Adjustable MSB error circuitry for optimized THD performance
• Internal stable zener voltage reference and output operational amplifier

ADCs/DACs - Special Purpose Applications

• Digital audio playback systems
• Professional audio equipment requiring low distortion
• High-end consumer audio components

ADCs/DACs - Special Purpose Procurement Notes

Verify component authenticity as the PCM54JP may be obsolete. Confirm package integrity and pin alignment for the 28-pin DIP format. Ensure power supply decoupling capacitors are placed close to the device pins to maintain specified noise rejection and stability during operation.

ADCs/DACs - Special Purpose Selection Notes

Select the PCM54JP when dual supply rails up to ±12V are available and parallel data interfaces are preferred over serial alternatives. Consider the optional external adjustment for Bipolar Zero error if minimizing crossover distortion at low signal levels is critical for the specific audio application requirements.

ADCs/DACs - Special Purpose Part Context

The PCM54JP belongs to the PCM54/PCM55 family of converters manufactured by Burr-Brown, now part of Texas Instruments. This family utilizes ultra-stable nichrome thin-film resistors to ensure long-term stability and low distortion characteristics essential for precision analog audio conversion tasks.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM54HP and PCM54KP are direct replacements within the same 28-pin DIP package. The PCM54HP offers standard specifications, while the PCM54KP provides tighter Total Harmonic Distortion limits. Verify that the replacement part meets the specific THD requirements of the design.

ADCs/DACs - Special Purpose FAQ

How does the PCM54JP handle Bipolar Zero Error?

The initial Bipolar Zero error is factory-trimmed to typically ±10mV. Additionally, Pin 1 allows for optional external adjustment of the MSB error to eliminate differential linearity error at bipolar zero.

What digital input formats are supported?

The device accepts complementary digital input codes in three binary formats: Complementary Straight Binary (CSB), Complementary Offset Binary (COB), and Complementary Two's Complement (CTC).

What is the settling time specification?

The voltage output settles to within ±0.006% of Full-Scale Range in 3μs for a 6V step, and the current output settles in 350ns for a 1mA step.