PCM1780DBQ

ADCs/DACs - Special Purpose Overview

The PCM1780DBQ is a stereo audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It features a 24-bit resolution and supports sampling rates up to 192 kHz using an enhanced multilevel delta-sigma architecture. The device operates on a single 5 V supply and utilizes a serial SPI interface for control. It provides dual bipolar analog outputs with a typical signal-to-noise ratio of 106 dB and a full-scale gain error of ±6%. Packaged in a 16-pin SSOP, it functions within a temperature range of -25 °C to +85 °C.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 192 kHz maximum sampling rate
• Enhanced multilevel delta-sigma modulation architecture
• Single 5 V power supply operation
• SPI serial control interface

ADCs/DACs - Special Purpose Applications

• High-fidelity audio playback systems
• Professional audio equipment
• Home theater receivers

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific package variant against the datasheet, as the DBQ suffix denotes a 16-pin SSOP tube packaging. Confirm that the system design accommodates the specified 5 V single-supply requirement and the operating temperature range of -25 °C to +85 °C. Ensure compatibility with the SPI digital interface protocol before integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-resolution stereo audio conversion without the need for multiple channels. Compare performance metrics such as SNR and THD+N against other members of the PCM1780 family if different pin counts or channel configurations are required. Verify that the SSOP-16 footprint fits the target PCB layout constraints.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM1780 series of audio DACs from Texas Instruments. The series includes variants like the PCM1780DBQR (reel version) and related models such as the PCM1754 and PCM1795, which offer different resolutions or interface options. The PCM1780DBQ specifically represents the standard tube-packaged version of the stereo 24-bit DAC.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1780DBQR is a direct functional substitute with identical electrical characteristics but differs in packaging format (cut tape/reel vs. tube). Other PCM1780 family members may require pinout verification.