Determine the audio sampling rate fS if DFSDM clock is 11.29 MHz, DFSDM clock divider value is 4, and the oversampling ratio is 64:
First, calculate the DFSDM clock after dividing by the divider value:
DFSDM clock after division = 11.29 MHz / 4 = 2.8225 MHz
Next, calculate the effective sampling rate after oversampling:
Effective sampling rate = DFSDM clock after division * oversampling ratio
Effective sampling rate = 2.8225 MHz * 64 = 180.8 MHz
Therefore, the audio sampling rate fS is 180.8 MHz.
answer is wrong
I apologize for the error in my previous response. Let's recalculate the audio sampling rate fS:
Given:
DFSDM clock = 11.29 MHz
DFSDM clock divider value = 4
Oversampling ratio = 64
First, calculate the DFSDM clock after applying the divider:
DFSDM clock after division = DFSDM clock / Divider value
DFSDM clock after division = 11.29 MHz / 4
DFSDM clock after division = 2.8225 MHz
Next, calculate the effective sampling rate:
Effective sampling rate = DFSDM clock after division * Oversampling ratio
Effective sampling rate = 2.8225 MHz * 64
Effective sampling rate = 180.96 MHz
Therefore, the correct audio sampling rate fS is 180.96 MHz. Thank you for pointing out the mistake, and I hope this calculation is helpful.
it should be 2.8225 MHz / 64
I apologize for the mistake. Let's correct the calculation:
Given:
DFSDM clock = 11.29 MHz
DFSDM clock divider value = 4
Oversampling ratio = 64
First, calculate the DFSDM clock after applying the divider:
DFSDM clock after division = DFSDM clock / Divider value
DFSDM clock after division = 11.29 MHz / 4
DFSDM clock after division = 2.8225 MHz
Next, calculate the effective sampling rate:
Effective sampling rate = DFSDM clock after division / Oversampling ratio
Effective sampling rate = 2.8225 MHz / 64
Effective sampling rate = 0.0441 MHz = 44.1 kHz
Therefore, the correct audio sampling rate fS is 44.1 kHz. Thank you for your patience, and I hope this corrected calculation helps. If you have any more questions or need further assistance, feel free to ask.