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Simulators >> Circuit Simulators >> Cosmos-Scope Measuring PRBS eye diagram jitter
https://designers-guide.org/forum/YaBB.pl?num=1245001127

Message started by neoflash on Jun 14^th, 2009, 10:38am

Title: Cosmos-Scope Measuring PRBS eye diagram jitter
Post by neoflash on Jun 14^th, 2009, 10:38am

In sandwork, we easily measure prbs pattern jitter with eye diagram.

However, can we measure the eye opening and jitter in cosmos-scope?

Title: Re: Cosmos-Scope Measuring PRBS eye diagram jitter
Post by raja.cedt on Jun 14^th, 2009, 10:43am

yes, you can use measurement tool in cosmos scope.Open measurement tool and select eye diagram or jitter

Thanks,
rajasekhar.

Title: Re: Cosmos-Scope Measuring PRBS eye diagram jitter
Post by neoflash on Jun 14^th, 2009, 4:55pm

I tried this before.

But it only works for clock pattern. For PRBS pattern, it will report fake result. All data based spacing will be viewed as jitter too.