Determine the audio sampling rate fS if DFSDM clock is 80 MHz, DFSDM clock divider value is 57, and the oversampling ratio is 64:
The formula for determining the audio sampling rate fS in a DFSDM system is:
fS = (DFSDM clock frequency) / (DFSDM clock divider value x oversampling ratio)
Plugging in the given values:
fS = (80 MHz) / (57 x 64)
fS = 22.675 kHz
Therefore, the audio sampling rate fS is 22.675 kHz.