PCM1796DBR

ADCs/DACs - Special Purpose Overview

The PCM1796DBR is a stereo audio digital-to-analog converter 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 with delta-sigma modulation. Key electrical specifications include a signal-to-noise ratio (SNR) of 123 dB and a total harmonic distortion plus noise (THD+N) of 0.0005%. It operates on a single analog and digital power supply ranging from 4.75 V to 5.25 V, with a typical operating current of 20 mA. The component is housed in a 28-pin SSOP package.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 192 kHz maximum sampling rate
• 123 dB SNR and 0.0005% THD+N performance
• I2C and SPI serial interface support for software control
• Single-supply operation (4.75 V to 5.25 V)

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific revision level and manufacturing date code against the latest Texas Instruments datasheet. Confirm that the SSOP-28 package dimensions match the target PCB footprint. Ensure compliance with RoHS directives if required by the end application. Cross-reference the part number suffix 'DBR' to confirm it denotes the reel packaging format as specified in official documentation.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high dynamic range and low distortion are critical for stereo audio reproduction. The I2C/SPI interface allows for flexible system integration without additional parallel data lines. Compare the 123 dB SNR against lower-tier models like the PCM1792 if cost sensitivity permits reduced performance. Verify power supply requirements align with the 4.75 V to 5.25 V operational range.

ADCs/DACs - Special Purpose Part Context

The PCM1796DBR belongs to the PCM179x series of advanced segment audio DACs from Texas Instruments. This series includes variants such as the PCM1792, PCM1794A, and PCM1795, which share similar architectural principles but differ in performance metrics and interface options. The DBR suffix indicates a tape-and-reel packaging configuration suitable for automated surface-mount assembly processes.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1792DBR offers similar functionality but may have different performance characteristics. Verify pin compatibility and software register maps before substitution. No other direct public substitutes are confirmed in the provided data.