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PSS Analysis in Corner Simulation

YingC

Dear,

I wanted to run PSS analysis during corner simulation of an oscillator. However, the beat frequency of the oscillator is a changing value  subjected to corner variations. This means that I cannot set the same beat frequency value for each PSS run.

I assume that I need to perform 2 analysis in sequence during each run:

1. Transient simulation: to calculate the beat frequency

2. PSS analysis using the beat frequency value obtained from step 1. 

How can I set these up in the ADE XL environment? Specifically, can I set the PSS beat frequency  as a variable which comes from the result of the Transient simulation? And how?

Best regards, 

Parents

  • However,  in general PSS does not need the estimated frequency to be that accurate so I'm not sure why you need to do this. Tom's advice is of course good, but I'd be surprised if it is necessary. What sort of range is the frequency varying over? I'm assuming you do actually have the "oscillator" checkbox turned on for the PSS analysis?

    Regards,

    Andrew 

Reply

  • However,  in general PSS does not need the estimated frequency to be that accurate so I'm not sure why you need to do this. Tom's advice is of course good, but I'd be surprised if it is necessary. What sort of range is the frequency varying over? I'm assuming you do actually have the "oscillator" checkbox turned on for the PSS analysis?

    Regards,

    Andrew 

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