Oct 10, 2007 #1 V vijaykarnam Junior Member level 1 Joined Jul 26, 2007 Messages 16 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,361 Hi all, I am designing a pll. in that, as u all know, in feedback loop divide by N counter is required. For that 50% duty cycle is important or not? and why? thanks Vijay
Hi all, I am designing a pll. in that, as u all know, in feedback loop divide by N counter is required. For that 50% duty cycle is important or not? and why? thanks Vijay
Oct 13, 2007 #2 W wwwww12345 Member level 1 Joined Sep 6, 2007 Messages 34 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,486 Re: Regarding Pll I think it is not important, for PFD only compares the phase of the input ,so the duty cycle is not of concern.
Re: Regarding Pll I think it is not important, for PFD only compares the phase of the input ,so the duty cycle is not of concern.
Dec 5, 2007 #3 D dinesh agarwal Full Member level 3 Joined Oct 20, 2007 Messages 151 Helped 4 Reputation 8 Reaction score 1 Trophy points 1,298 Location Hyderabad India Activity points 2,074 Regarding Pll the comparision is on the basis of leading edges of the reference fre and the feedbach(Div ) fre hence duty cycle readlly does not matter the slope or the transient time is important instead of duty cycle hope got it
Regarding Pll the comparision is on the basis of leading edges of the reference fre and the feedbach(Div ) fre hence duty cycle readlly does not matter the slope or the transient time is important instead of duty cycle hope got it
Dec 5, 2007 #4 khouly Advanced Member level 5 Joined Oct 20, 2003 Messages 2,350 Helped 461 Reputation 916 Reaction score 102 Trophy points 1,343 Location EGYPT Activity points 13,242 Regarding Pll yeah the PFD is sensitive to the phase of the inputs khouly
Dec 6, 2007 #5 R rajanarender_suram Full Member level 4 Joined Jan 20, 2006 Messages 214 Helped 22 Reputation 44 Reaction score 10 Trophy points 1,298 Activity points 2,375 Regarding Pll Pfd compares wrt to the rising edges of the inputs so the duty cycle is not important
Dec 21, 2007 #6 D dinesh agarwal Full Member level 3 Joined Oct 20, 2007 Messages 151 Helped 4 Reputation 8 Reaction score 1 Trophy points 1,298 Location Hyderabad India Activity points 2,074 Regarding Pll comparision is on rising or falling edges can someone clarify