The Designer's Guide Community
Forum
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Jul 28th, 2024, 1:31pm
Pages: 1
Send Topic Print
sampling clock jitter stand for? (Read 1780 times)
880321
New Member
*
Offline



Posts: 6

sampling clock jitter stand for?
Dec 18th, 2012, 12:26am
 
Hi,

I am desig a PLL for an ADC, and the ADC has spec of clk jitter;

from PLL design I can get the PLL out phase noise L(f)

int(L(f))------>can get phase jitter, namely edge-to-edge jitter;

does this phase jitter is the sampling clk jitter i need to meet?

from ADI app note MT-008, the clk time jitter is the phase jitter ;

but
http://www.designers-guide.org/Forum/YaBB.pl?num=1260769814

give different idea

anybody know the exact answer?

Back to top
 
 
View Profile   IP Logged
Virvasav
New Member
*
Offline



Posts: 9
Kolkata, India
Re: sampling clock jitter stand for?
Reply #1 - Jan 2nd, 2013, 11:05pm
 
Hi,

PLL has two types of jitter random and deterministic. The jitter you got from phase noise is random. For the spec of ADC, it includes random as well as deterministic both. For deterministic jitter you have to measure, period jitter or cycle to cycle jitter.
Back to top
 
 
View Profile   IP Logged
Pages: 1
Send Topic Print
Copyright 2002-2024 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.