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Effects on the Phase Detector due to Variation in the Ton(or Duty Cycle) of the Programmable Divider.

Question asked by YSVenu on May 31, 2013
Latest reply on Jun 17, 2013 by rbrennan



The Duty Cycle of the N Counter output (For Int-N PLLs) is,

Duty cycle = P/N * 100 %


This will produce different Ton's (or duty cycle's) for 8/9, 10/11 and 16/17 Prescalar's. Is the Phase Detector related to the duty cycle output of the programmable divider ?

Does the duty cycle even matter to the Phase Detector ? If yes, what happens if there are minor variations/error in the duty cycle ?