How do we usually measure the clock jitter?

[DZC]

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

 

[Grig]

Hi
Visit Jitter Master Forum
**broken link removed**

 

[gevy]

For example, use oscilloscope.

 

[sawfilter]

Hi
Visit Jitter Master Forum
**broken link removed**

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.

 

[rowokii]

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.
**broken link removed**

 

[oermens]

eye diagram in time domain
phase noise in freq domain