How do we usually measure the clock jitter?

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DZC

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The frequency is 10~300Mhz,and the jitter is expect to be within 1ps.
Thanks a lot.
 

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    DZC

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Grig said:
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Click to expand...

Normally, I would agree with the o-scope method.
Today, ultralow jitter measurements are more acuarately measured using a spec analyzer. Close in phase noise contributes the most jitter.
 

First thing you should do is determine what type of jitter you want to measure... (Cycle-to-cycle, edge-to-edge, etc...) Setup for measuring is different for each type. Also, do you know if your 1ps jitter spec, is rms or peak-to-peak?

Read this:
https://www.designers-guide.org/Analysis/PLLjitter.pdf
Good intro on definition of different types of jitter.

This is a good overview of what you are measuring.
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