PCM2705DBRG4

ADCs/DACs - Special Purpose Overview

The PCM2705DBRG4 is a stereo digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for USB 2.0 Full Speed audio applications. It integrates a USB interface and supports bus-powered or self-powered operation with software control. The device features a signal-to-noise ratio of 98 dB and operates within a supply voltage range of 3 V to 5.25 V. It provides line-out and S/PDIF outputs, supporting a sampling rate of 48 kHz with 16-bit resolution. The component is housed in a 28-pin SSOP package and functions across an operating temperature range of -25°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• Integrated USB 2.0 Full Speed interface for direct connection to host systems
• Stereo DAC with 98 dB SNR and 16-bit resolution at 48 kHz sampling rate
• Dual output capability including analog line-out and digital S/PDIF
• Supports both bus-powered and self-powered configurations

ADCs/DACs - Special Purpose Applications

• USB audio peripherals such as external sound cards
• Desktop and portable multimedia systems requiring high-fidelity audio
• Embedded audio solutions with S/PDIF digital output requirements

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's current documentation to confirm compliance status and pinout compatibility. Ensure the selected variant matches the required power configuration (bus vs. self-powered) and interface specifications for the target design.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a combined USB controller and stereo DAC is required in a single package. Compare performance metrics such as SNR and THD against discrete solutions if higher fidelity is needed. Confirm that the 28-SSOP package size fits the available PCB real estate and thermal constraints.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM2705 family of audio DACs from Texas Instruments. It serves as an integrated solution for converting digital audio data received via USB into analog signals. The device simplifies system design by eliminating the need for separate USB controllers and DACs.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM2705DBR is a related variant within the same product family. Verify functional equivalence and packaging differences before substitution. No other public substitute part numbers are confirmed.