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How to measure eye diagram

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noisepic

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I want to measure eye diagram of Clock, address, data of DDR3. Do you know some how to measure?
 

My oscilloscope is not high end as in the vieo. It is analog oscilloscope only
 

If your oscilloscope is slow on re-triggering it would be impossible to get a clear eye diagram of a a high speed interface such as DDR3.
 

Hi,

I doubt that an analog scope can do this, because an eye diagram is the result of a high number of measurement runs.
Every of the runs should be made with different input parameters (different address, different data....)

An eye diagram is used to show the extremes in timing variation and voltage variation.

Klaus
 

But how to setting? Is there anyone had experience with that?
 

If its DDR memory look around some of the memory chip companies sites, such as micron.
 

I want to measure eye diagram of Clock, address, data of DDR3. Do you know some how to measure?
An analog scope can do it if trigger holdoff time is fast enough (faster than the phosphor persist time). And, of course, provided the scope has high enough bandwidth.
 

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