Phase frequency Detector
			 
			 
			
		
		
		
			
			Hi! 
I need help understanding a conventional phase/frequency detector.I 
consists of 6 two input NAND gates and 3 three input NAND gates.It 
compares the phase and generates UP and DOWN signals.I was wondering 
why the dead zone is high specially when there is a large reset delay 
path. 
Deepthi 
		 
		
		
		
		
		
		
		
		
	
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