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about a logic of PFD

Question asked by Soichi Yamamoto on May 9, 2014
Latest reply on May 23, 2014 by Karina Valencia Aguilar

Hi,

 

My customer have question about the logic of the divider circuit of PFD.

 

A circuit of PFD is not a simple divider circuit from the following expression.

  PFDn Output Frequency = PLLx Output Frequency * (18/PFDn_FRAC) 

 

Q1)Please tell me about a logic of PFD in detail.

Best Regards,

soichi

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