Determine the audio sampling rate fS and DFSDM clock if DFSDM clock divider value is 57, and the oversampling ratio is 64:

Question

Determine the audio sampling rate fS and DFSDM clock if DFSDM clock divider value is 57, and the oversampling ratio is 64:

Answer 1

The formula to calculate the audio sampling rate (fS) and DFSDM clock is:

fS = (DFSDM clock frequency) / (DFSDM clock divider value x oversampling ratio)

Given that the oversampling ratio is 64 and the clock divider value is 57:

fS = (DFSDM clock frequency) / (57 x 64)

We do not have enough information to solve for both the clock frequency and sampling rate. We need to know at least one of the values to calculate the other.