PCM1820IRTER

ADCs/DACs - Special Purpose Overview

The PCM1820IRTER is a stereo-channel, 32-bit audio analog-to-digital converter (ADC) from Texas Instruments. It supports sampling rates from 8 kHz to 192 kHz and operates on a single 3.3 V supply. The device features an integrated high-performance audio PLL, programmable gain amplifiers, and selectable linear-phase or low-latency digital filters. Power consumption is specified at 19.6 mW per channel at 16 kHz and 21.3 mW per channel at 48 kHz. It utilizes a WQFN-20 package and provides flexible serial data interfaces including I2S and TDM.

ADCs/DACs - Special Purpose Feature Summary

• Stereo input with 32-bit resolution and 192 kHz maximum sampling rate
• Integrated audio PLL and programmable gain amplifiers for microphone/line-in applications
• Selectable linear-phase or low-latency digital filters
• Flexible serial interface supporting master/slave modes in I2S and 32-bit TDM formats

ADCs/DACs - Special Purpose Applications

• Smart speakers
• DVD recorders and players
• AV receivers
• Video conference systems

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix 'IRTER' against the manufacturer's current datasheet to confirm the exact tape-and-reel quantity and moisture sensitivity level. Ensure the design accounts for the WQFN-20 thermal pad requirements and the 3.3 V single-supply constraint during procurement planning.

ADCs/DACs - Special Purpose Selection Notes

Select this component for stereo audio digitization requiring high resolution and low power. Compare SNR and THD+N specifications against the PCM1822 if higher dynamic range is required. Confirm that the host processor supports the selected serial interface format (I2S or TDM) and clocking configurations before finalizing the design.

ADCs/DACs - Special Purpose Part Context

The PCM1820 belongs to the Burr-Brown PCM182x family of stereo audio ADCs. It shares architectural similarities with the PCM1821 and PCM1822, differing primarily in pinout compatibility and specific performance metrics such as dynamic range. The IRTER suffix indicates a specific reel packaging option within the standard industrial temperature grade series.

ADCs/DACs - Special Purpose Replacement Considerations

The PCM1821 serves as a direct pin-compatible alternative within the same family. For designs requiring higher dynamic range, the PCM1822 offers improved SNR but may require schematic adjustments due to different feature sets.