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Metastability error probability of a cascade of latches (Read 1340 times)
Alok_ky
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Metastability error probability of a cascade of latches
Sep 03rd, 2016, 12:55pm
 
I want to analyze the probability of error at the output of a cascade of latches. I'm a bit confused about the equation (17) in the "comparator metastability analysis" article in this forum. It says that if Pe1 and Pe2 are the metastabilility probability errors of two latches in cascade, then the total prob of error is :

Pe = Pe1*Pe1;

But what I think, it should be Pe1 +Pe2;

Is it correct ?
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wandola
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Re: Metastability error probability of a cascade of latches
Reply #1 - Apr 5th, 2017, 6:30pm
 
dude, when you cascading two latches, the probability of both latches are in metastability state is pe1*Pe2.

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