PDM to PCM converter for mobile computing and professional electronics

Analog Devices ADAU7112 Stereo PDM to PCM Converter gives up to two channels of decimation from a 1-bit out source to a 24-bit PCM audio output. The downsampling ratio is 64 x fS, with fS being the PCM output sampling rate. All channels decimate at the same ratio. The 24-bit downsampled PCM audio data is output via standard Inter-IC Serial or Time Domain Multiplexed format.

The input sources for the converter can be any device that has a slave PDM output, such as a digital microphone. The output pins of these microphones can connect directly to the input pins of the device.

The converter is offered in a halide-free, nine-ball, Wafer Level Chip Scale Package, and is specified over a commercial temperature range of -40C to +85C.

Typical applications include mobile computing, portable electronics, consumer electronics, and professional electronics.