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PCM5102-Q1: supported sample rate

Part Number: PCM5102-Q1
Other Parts Discussed in Thread: PCM1753-Q1, PCM1789-Q1

Dear all,

one of my AA, would use the sample rate fs=20.5KHz, but this is not allowed in neither 3-wire and 4-wire mode.

Is there any other Automotive Audio DAC which supports this sample rate ?

Moreover in paragraph it is written that the device support a tolerance of 4% on the clock rate. Is it true for both 3-wire and 4-wire configurations ?



  • Hi Domenico,

    The PCM1753-Q1 and PCM1789-Q1 both support this sample rate in a 4-wire configuration.

    In regards to the clock tolerances, yes that is in both configurations. As the PCM510xA is a HW controlled device, it must auto-detect the input clocks in order to configure its various clock trees for the charge-pump, DSP, and DAC Clock. The 4% tolerance is really the auto detect limitations.