ADAU7002ACBZ-R7

Overview

The ADAU7002ACBZ-R7 is a stereo audio sample rate converter that performs 64× decimation of a pulse density modulation (PDM) bit stream to 20-bit pulse code modulation (PCM) data. It operates with an I/O supply voltage range of 1.62 V to 3.6 V and supports output sample rates from 4 kHz to 96 kHz. The device features a dynamic range of 110 dB and consumes 0.67 mA at 48 kHz with a 1.8 V supply. It utilizes an 8-ball WLCSP package measuring 1.56 mm × 0.76 mm.

Feature Summary

• Stereo PDM-to-I2S/TDM conversion with fixed 64× decimation ratio
• Automatic BCLK ratio detection supporting 64× to 512× multiples
• Configurable TDM slot placement via CONFIG pin
• Automatic power down upon BCLK removal

Applications

• Mobile computing
• Portable electronics
• Consumer electronics

Procurement Notes

Verify the specific ordering suffix for tape and reel dimensions, as the datasheet lists both 7-inch and 13-inch options. Confirm RoHS compliance status through official manufacturer documentation. Ensure compatibility with the required operating temperature range of -40°C to +85°C for the intended application environment.

Selection Notes

Select this component when interfacing directly with digital microphones or other PDM sources requiring downsampling to PCM. The fixed 64× decimation ratio limits flexibility compared to programmable converters. Ensure the host processor supports the required I2S or TDM serial interface timing parameters specified in the datasheet.

Part Context

This part belongs to the ADAU7002 series of audio ICs. It is specifically designed for low-power applications where direct connection to PDM sensors is required without intermediate processing. The WLCSP package allows for compact design integration in space-constrained portable devices.

Replacement Considerations

The ADAU7002ACBZ-RL is a compatible alternative offering the same functionality but packaged in a 13-inch tape and reel format instead of the standard 7-inch reel.