Article ID: 000076319 Content Type: Troubleshooting Last Reviewed: 09/11/2012

What does the mUI unit stand for and what is the formula used to calculate jitter?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

mUI stands for milli unit interval where a unit interval (UI) is one clock period.

Here is an example on how to use the formula:

If you have a 100MHz clk, that equals a UI of 10ns.
If according to the datasheet, the jitter spec is 60mUI, which equates to:
60 x 10^-3 x 10ns  = 600ps of jitter

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