PCM1791ADBG4

ADCs/DACs - Special Purpose Overview

The PCM1791ADBG4 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 integrates two converters with an SSOP-28 package. Key electrical specifications include a signal-to-noise ratio (SNR) of 113 dB and a total harmonic distortion plus noise (THD+N) of 0.0004%. It operates on a power supply voltage ranging from 4.5 V to 5.5 V and functions within a temperature range of -25°C to +85°C. The gain error is specified at 8% FSR.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 192 kHz sampling rate capability
• High performance metrics: 113 dB SNR and 0.0004% THD+N
• Dual-channel stereo DAC architecture in SSOP-28 package

ADCs/DACs - Special Purpose Applications

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

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'BG4' against official Texas Instruments documentation to confirm RoHS compliance and lead-free status, as packaging variations may exist. Confirm the SSOP-28 package type matches design requirements. Cross-reference the part number with current datasheets to ensure no functional changes due to manufacturing updates.

ADCs/DACs - Special Purpose Selection Notes

Select this component for applications requiring high-resolution audio conversion with low distortion. Ensure the system design accommodates the 4.5 V to 5.5 V supply voltage range. Verify that the SPI interface compatibility aligns with the host controller. Consider the thermal operating limits of -25°C to +85°C for the intended environment.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM1791A series of audio DACs. It is functionally similar to the PCM1791ADB but includes the 'G4' suffix indicating specific environmental compliance attributes. It serves as a stereo DAC solution within Texas Instruments' portfolio of audio integrated circuits.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1791DB is a related variant within the same family. Verify pinout and electrical parameter compatibility before substitution. Check if the DSD1791DB offers necessary interface differences, such as SPI-only support versus I2C/SPI options found in other variants.