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ADEXL measurement for temp drift of an output variable

vamshiky

Hi,

I have to measure a frequency of a circuit at  room temp, cold and hot.

and want the percentage change in frequency from room temp to cold and hot  in every process corner.(and any other global variable)

ex: ratio of  Freq_125C/Freq_25degC  is what I want in all corner  sims.

Please suggest any solution to do this within adexl, as presently I am copying data manually into an excel sheet and doing it.

Thanks,

Vamshi

Parents

  • Hi Vamshi,

    If you use IC616 ISR12 or later (IC6.1.6.500.12) then you can use a new feature of the calcVal() function which allows specifying a specific corner. To use this, I'm assuming  you have an output called "Freq" - then add a new output called (say) FreqRatio, with the expression:

    calcVal("Freq")/calcVal("Freq" ?cornerName "Nominal")

    If the cornerName is "Nominal" (with a capital N) it's referring to the "Nominal" run - i.e. using the models etc from the test. Alternatively, if you have a specific corner name to retrieve the results from (e.g.  "C0_0") you can use that too.

    Regards,

    Andrew.

Reply

  • Hi Vamshi,

    If you use IC616 ISR12 or later (IC6.1.6.500.12) then you can use a new feature of the calcVal() function which allows specifying a specific corner. To use this, I'm assuming  you have an output called "Freq" - then add a new output called (say) FreqRatio, with the expression:

    calcVal("Freq")/calcVal("Freq" ?cornerName "Nominal")

    If the cornerName is "Nominal" (with a capital N) it's referring to the "Nominal" run - i.e. using the models etc from the test. Alternatively, if you have a specific corner name to retrieve the results from (e.g.  "C0_0") you can use that too.

    Regards,

    Andrew.

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