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Eye diagram

nevinalex1234

 hi

I have been trying to plot eye diagrams in cadence. The command eyediagram(signal,start,stop,period) is the format. But i am not able to control the no of eyes in my diagram. Say i run my simulation from 0 to 10u and my input clk is 5Ghz, typically to get a SINGLE EYE, i should give 200p as period rite ? I have added a 25p, 25p rise time fall time for it. But the thing seems going crazy.

Any ideas whats bugging ?

Parents

  • Yes, 200p should give a single period of the waveform - ie. one rise and one fall. Maybe some pictures would help explain your problem (also please state which version of the tools you're using - Help->About will tell you this).  I don't really understand what the rise and fall time you're talking about is related to either.

    Andrew

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  • Yes, 200p should give a single period of the waveform - ie. one rise and one fall. Maybe some pictures would help explain your problem (also please state which version of the tools you're using - Help->About will tell you this).  I don't really understand what the rise and fall time you're talking about is related to either.

    Andrew

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