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CDCI6214: CDCI6214 questions

Part Number: CDCI6214


About CDCI6214 TICSpro, we could find that there is a note about  pll_ndiv. It means: Ncount value. The actual value will be 4 less than programmed value. Also - during the calibration - the value will 4 times (minus 4) the programmed value.

I'd like to confirm what does it mean? If we used the TICSpro value when programming? I didn't find any related description about this note, so please help to confrim. 

Best regards


  • Kailyn,

    With regard to the subtraction of 4, this is to compensate for an internal offset in the device. The minimum value that can be written here is N = 6, which corresponds to a divide by 2.

    The value is 4 times (minus 4) the programmed value during calibration because the clock supplied to the N-counter circuit by the internal state machine is divided by 4 - the multiplication of N by 4 balances this change. This behavior does not require any change to be made on the customer's end, as far as the N value is concerned.