PCM1771PWR

ADCs/DACs - Special Purpose Overview

The PCM1771PWR is a stereo audio digital-to-analog converter (DAC) manufactured by Texas Instruments, housed in a 16-pin TSSOP package. It features a 24-bit resolution and supports sampling rates up to 50 kHz. The device 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 integrates two DAC channels with an internal headphone amplifier, designed for low-power portable audio applications.

ADCs/DACs - Special Purpose Feature Summary

• 24-bit resolution with 98 dB SNR and 0.007% THD+N performance
• Integrated stereo headphone amplifier for direct drive capability
• Single-supply operation from 1.6 V to 3.6 V
• Supports I2S, left-justified, and right-justified data formats

ADCs/DACs - Special Purpose Applications

• Portable audio players
• Cellular phones
• Personal Digital Assistants (PDAs)

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific revision level and manufacturing date code upon receipt, as component markings may vary across production batches. Confirm that the received units match the 16-TSSOP physical dimensions and pinout configuration specified in the official datasheet to ensure compatibility with existing PCB layouts.

ADCs/DACs - Special Purpose Selection Notes

Select the PCM1771PWR when a compact 16-pin surface-mount solution is required for stereo audio conversion. This model utilizes a serial interface for control, distinguishing it from hardware-controlled variants like the PCM1770. Ensure the system design accommodates the 1.6 V to 3.6 V voltage range and provides adequate thermal dissipation for the TSSOP-16 package.

ADCs/DACs - Special Purpose Part Context

The PCM1771PWR belongs to the PCM177x series of low-power audio DACs from Texas Instruments. It shares architectural similarities with the PCM1770 but differs in its control interface mechanism. The 'PWR' suffix denotes the TSSOP-16 package type with tape-and-reel packaging, suitable for automated surface-mount assembly processes.

ADCs/DACs - Special Purpose Replacement Considerations

Direct pin-compatible replacements within the same family include the PCM1771PW (tube packaging). For updated designs, consider the PCM1774 or PCM1780 series, which offer enhanced specifications or different interface options, though pinouts and control registers may require schematic adjustments.