[SI-LIST] Re: Phase jitter vs. period jitter

  • From: Jai Shanker <jswarrier@xxxxxxxxx>
  • To: si-list@xxxxxxxxxxxxx
  • Date: Thu, 24 Aug 2006 08:30:46 -0700 (PDT)

Hello,

I am evaluating 2 clock drivers for a project from
different manufacturers and found that one specified
phase jitter in ps, (RMS) and the other period jitter
in ps, RMS. 

The spec for phase jitter was not phase noise or in
dBc/Hz. It helpfully adds that the cycle-cycle jitter
on its input will equal the output, the part wont add
jitter.

I searched SI-list and couldnt find much info. Could
somebody help provide some tips on how they compare/
correlate.

I did get some complex discussion involving
convolution and integrals. If it can only be
understood at that level (rather beyond me :-)) pls
let me know. 

I am now studying a Corning apnote on VCXO phase
jitter  that is reasonably OK, but would appreciate
any tips.

Thanks & regards,
Jai Shanker W.
ACI Pvt Ltd


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