ieok
Newbie level 4
I am working on OC192 clock and data recovery (CDR) part. As i know there is 3 jitter specification. They are jitter generation, jitter tolerance and jitter trasnfer.
This is what I interpret the spec:
Jitter generation: put a clean data with PRBS12 and measure the data and clock jitter at the output of CDR. However what is the max value?
JItter tolerance: there is a jitter tolerance mask need to be complied.
Jitter transfer: As I notice from some journals, if jitter tolerance is fulfilled, jitter transfer spec is be complied too. but need to make sure the jitter amplitude is <0.1db. How about the bandwidth or fc of the jitter transfer? Does the fc related to jitter tolerance?
Hope someone can correct me if I interpret the spec worngly.
Many thanks!
This is what I interpret the spec:
Jitter generation: put a clean data with PRBS12 and measure the data and clock jitter at the output of CDR. However what is the max value?
JItter tolerance: there is a jitter tolerance mask need to be complied.
Jitter transfer: As I notice from some journals, if jitter tolerance is fulfilled, jitter transfer spec is be complied too. but need to make sure the jitter amplitude is <0.1db. How about the bandwidth or fc of the jitter transfer? Does the fc related to jitter tolerance?
Hope someone can correct me if I interpret the spec worngly.
Many thanks!