Bluetooth Audio Module
Ehong Technology Co., Ltd
Figure 6 : Apple Co-processor 2.0B
6.9. Digital Audio Interfaces
The audio interface circuit consists of:
■ Stereo/Dual-mono audio codec
■ Dual audio inputs and outputs
■ 6 digital MEMS microphone inputs
■ A configurable PCM, I²S or SPDIF interface
Figure 2 outlines the functional blocks of the interface. The codec supports stereo playback and
recording of audio signals at multiple sample rates with a resolution of 16-bit. The ADC and
the DAC of the codec each contain 2 independent channels. Any ADC or DAC channel can be
run at its own independent sample rate.
