PCM1771RGAR

ADCs/DACs - Special Purpose Overview

The PCM1771RGAR 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 48 kHz. The device integrates a headphone amplifier and operates on a single power supply ranging from 1.6 V to 3.6 V. Key electrical specifications include a signal-to-noise ratio (SNR) of 98 dB and a total harmonic distortion plus noise (THD+N) of 0.007%. It consumes 2.5 mA of operating current and utilizes a serial 3-wire interface for control. The component is housed in a 20-pin VQFNP package.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 2-channel stereo output
• Integrated headphone amplifier
• Low power consumption of 2.5 mA
• Serial 3-wire interface

ADCs/DACs - Special Purpose Applications

• Portable audio players
• Mobile devices
• Digital voice recorders

ADCs/DACs - Special Purpose Procurement Notes

Verify the 'RGA' suffix indicates the specific VQFNP-20 package variant. Confirm the 'R' suffix denotes tape-and-reel packaging, distinct from tray packaging. Ensure compatibility with the required 1.6 V to 3.6 V single-supply voltage range for the target application design.

ADCs/DACs - Special Purpose Selection Notes

Select this component when a low-power, high-resolution DAC with an integrated headphone amp is required. The 24-bit resolution and 98 dB SNR support high-fidelity audio reproduction. The serial interface simplifies connection to microcontrollers or DSPs. Verify that the 48 kHz maximum sampling rate meets the system's audio bandwidth requirements.

ADCs/DACs - Special Purpose Part Context

The PCM1771 belongs to the PCM177x series of low-power stereo DACs. It shares functional similarities with the PCM1770 but differs in package type and specific pinout configuration. The RGAR variant specifically refers to the reel-packaged version of the VQFNP-20 form factor.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1770PWRG4 is a related device within the same product family, offering similar 24-bit stereo DAC functionality with an integrated headphone amplifier. Verify pin compatibility and package differences before substitution.