ZHCSIM2D June 2010 – August 2021 PCM9211
PRODUCTION DATA
There are up to 3x digital auxiliary (AUX) inputs and one AUX output on the PCM9211. These I/Os are multiplexed and shared with RXIN4 through RXIN7, MPIOB, and MPIOC. Each input and output supports a four-wire digital audio interface that is similar to the I2S protocol. Each I/O can support SCK (system clock), BCK (bit clock), LRCK (left/right clock, or word clock) and data transmissions. The audio format supported through the Aux I/O can be configured for I2S, 24-bit left-justified (LJ), 24-bit right-justified (RJ), and 16-bit RJ output.
The AUX inputs are designed to be driven in Clock Slave mode. The Aux Output can only operate in Master mode. The system clock can be run from 128fS, 256fS, and 512fS. However, the ADC cannot run from 128fS.