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Topic: What is Jitter and how do I measure it?
Total Replies: 4 Reply To This Topic

What is Jitter and how do I measure it?
lkon on 2/28/2010 3:24:00 PM

re:What is Jitter and how do I measure it?Best Answer!
Jitter is unwanted variations in pulse interval, phase, pulse width, or even amplitude. It’s usually caused by noise, crosstalk from other signals, and electromagnetic interference. The effect of too much jitter is an increase in the bit error rate (BER).
precision on 3/2/2010 10:49:00 AM

re:What is Jitter and how do I measure it?Best Answer!
First you have to figure out which type of jitter you want to measure. There are several types of jitter, like random jitter (Rj) and deterministic jitter (Dj), together become total jitter (Tj). Each comes from different sources and is measured in a different way. A good way to see it is to display the data pulses in an eye diagram. The fuzzier the waveform, the greater the jitter.
precision on 3/2/2010 5:32:00 PM

re:What is Jitter and how do I measure it? 
You have to know the standard you must comply with, and be sure that any scope you buy has jitter analysis software and eye-diagram display capability.The Agilent DSA90404A comes with Jitter analysis and Serial Data Analysis/Mask Testing Software standard. If you already own a scope and want to add the software the model numbers are N5400A and E2688A.
kiloman on 3/4/2010 3:39:00 PM

re:What is Jitter and how do I measure it? 
There is also this advance software made by a compnay called Amherst Systems who makes this really nice Jitter and complaince software called M1-OT. Amherst engineers helped develop some of the software for Agilent and now has its own software that works accoss all scope MFG's so it is very versitile. check it out if you get a chance. www.amherst-systems.com
ExR on 3/4/2010 9:42:00 PM


Total Replies: 4 Reply To This Topic

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