ADAU7112

RECOMMENDED FOR NEW DESIGNS

Stereo PDM to I2S/TDM Converter

Analog Devices ADAU7112 Product Info

10 February 2026 8

Features

2 channels of PDM audio inputs from digital microphones
64× decimation ratio of PDM to PCM audio data
24-bit resolution to support high sound pressure level (SPL) microphones
126 dB A-weighted SNR
4 kHz to 96 kHz output sampling rate
Bit clock rates of 64×, 128×, 192×, 256×, 384×, or 512× the output sampling rate
Automatic PDM clock generation
Automatic power-down when BCLK is removed

0.36 mA DVDD operating current at 48 kHz sampling rate and 1.8 V supply
Slave I2S or TDM output interface
Up to TDM-16 supported
Configurable TDM slots
I/O supply voltage from 1.70 V to 3.63 V
DVDD core supply voltage from 1.10 V to 1.98 V
4 μA typical DVDD shutdown current
9-ball, 1.26 mm × 1.26 mm, 0.4 mm pitch WLCSP
Power-on reset

Part details & applications

The ADAU7112 converts stereo pulse density modulation (PDM) bitstreams into one pulse code modulation (PCM) output stream. The source for the PDM data can be two microphones or other PDM sources. The PCM audio data is output on a serial audio interface port in either inter-IC serial (I²S) or time domain multiplexed (TDM) format.

The ADAU7112 is specified over the commercial temperature range (−40°C to +85°C). The ADAU7112 is available in a halide-free, 9-ball, 1.26 mm × 1.26 mm, 0.4 mm pitch, wafer level chip scale package (WLCSP).

Applications

Mobile computing
Portable electronics
Consumer electronics
Professional electronics

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