PCM1791ADBR

ADCs/DACs - Special Purpose Overview

The PCM1791ADBR 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. The device utilizes an advanced segment architecture to achieve high performance metrics, including a signal-to-noise ratio of 113 dB and a total harmonic distortion plus noise of 0.0004%. It operates on a single power supply ranging from 4.5 V to 5.5 V and includes two DAC channels with corresponding analog outputs. Communication is managed via I2C and SPI serial interfaces.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 192 kHz maximum sampling rate
• Advanced segment architecture for high fidelity audio
• Integrated I2C and SPI control interfaces
• Low THD+N of 0.0004% and SNR of 113 dB

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'A' and 'DBR' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the SSOP-28 package dimensions match the target PCB footprint. Confirm RoHS compliance status through official documentation before integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a 24-bit stereo DAC with integrated digital filtering and low jitter is required. Compare the 113 dB SNR against higher-end models like the PCM1792 if dynamic range is critical. Verify that the 4.5 V to 5.5 V operating voltage aligns with the system power design.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM1791A series of audio DACs. It shares architectural similarities with the PCM1792 but offers slightly different performance characteristics. The 'DBR' suffix indicates the SSOP-28 surface-mount package and reel packaging format.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1792ADB is a related model with higher SNR (127 dB). Verify pin compatibility and software register differences before substitution. Other family members may require different power supplies or interface configurations.