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Question on  PD (phase detector) (Read 46 times)
tulip
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Question on  PD (phase detector)
Dec 03rd, 2018, 7:21pm
 
In PLL, PFD( phase frequency detector) are mostly used. PD are usually used in DLL. I have some questions on the usage of PD, which I could not find answers in books and papers.

what is the locking range of a PD PLL, for example, a mixer used as PD. I tried to analyze the locking range of PD PLL, but failed.
what is the advantage and disadvange of using PD instead of PFD? For example, we generally use PD in a DLL, why do not use PFD in a DLL?

Thanks.
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