PCM2705DBR

ADCs/DACs - Special Purpose Overview

The PCM2705DBR is a stereo audio digital-to-analog converter (DAC) manufactured by Texas Instruments. It integrates a USB interface to receive digital audio data and convert it into analog signals. The device features two converters with a resolution of 16 bits and supports sampling rates up to 48 kHz. Key electrical parameters include a signal-to-noise ratio (SNR) of 98 dB, a gain error of +/- 8% FSR, and an operating supply voltage range from 3 V to 5.25 V. It utilizes a serial interface for control and is housed in an SSOP-28 package suitable for surface mount technology.

ADCs/DACs - Special Purpose Feature Summary

• Integrated USB interface for direct connection to host computers
• Stereo DAC with 16-bit resolution and 98 dB SNR
• Supports 48 kHz sampling rate via serial interface
• Operates on single supply voltage from 3 V to 5.25 V

ADCs/DACs - Special Purpose Applications

• USB audio peripherals such as sound cards and external DACs
• Portable audio devices requiring low power consumption
• Computer peripheral audio output modules

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type is SSOP-28 and the suffix 'DBR' indicates reel packaging. Confirm the manufacturer is Texas Instruments and check RoHS compliance status. Ensure the operating temperature range meets the application requirements of -25 C to +85 C. Validate that the USB interface compatibility aligns with the system design.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a stereo DAC with integrated USB functionality is required. It is suitable for applications needing 16-bit audio resolution at 48 kHz. Compare SNR performance against other models if higher fidelity is needed. Consider the SSOP-28 package size constraints during PCB layout planning.

ADCs/DACs - Special Purpose Part Context

This part belongs to the PCM2705 series of audio DACs from Texas Instruments. It is designed specifically for USB audio applications, combining digital interface handling with analog conversion. The DBR suffix typically denotes tape and reel packaging for automated assembly processes.

ADCs/DACs - Special Purpose Replacement Considerations

Check for PCM2705 variants with different packages or temperature ranges. Verify pin compatibility if substituting with other USB DACs from the same family.