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GCF in the PSS settings

Clidre over 9 years ago

Hello,

I'm setting a PSS simulation for my DDS.

The produced frequency is fCK/(2^N)*step, where step is a parameter that I control from the ADE, and N=10.

I would like to set the beat frequency of the PSS as a function of my parameter. In particular, I would like the beat frequency to be

fCK/(2^N)*GCF(2^N,step)

where I called GCF the greatest common factor between 2^N and step.

Is there a GCF function? I didn't find anything similar in the Virtuoso Visualization and Analysis XL User Guide. I really need a GCF function to keep my PSS settings correct for every value I assign to my parameter.

I hope you can help me.

Thanks a lot!

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Frank Wiedmann over 9 years ago

I did not find any documented GCF (or GCD) function although it has to exist internally in Virtuoso for the "Auto Calculate" option of the "Beat Frequency" in the pss setup form.

You could define the function trGCD (and the functions it uses) from http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:TechPubDocs;src=pubs;releaseName=;DocumentType=manuals;q=/sklanguser/sklanguserIC6.1.7/chap17.html#1008369 in your environment. If you are using ADEXL, you should also take a look at http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;DocumentType=tbshtng;solutionNumber=11821730.
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Frank Wiedmann over 9 years ago

I did not find any documented GCF (or GCD) function although it has to exist internally in Virtuoso for the "Auto Calculate" option of the "Beat Frequency" in the pss setup form.

You could define the function trGCD (and the functions it uses) from http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:TechPubDocs;src=pubs;releaseName=;DocumentType=manuals;q=/sklanguser/sklanguserIC6.1.7/chap17.html#1008369 in your environment. If you are using ADEXL, you should also take a look at http://support.cadence.com/wps/mypoc/cos?uri=deeplinkmin:ViewSolution;DocumentType=tbshtng;solutionNumber=11821730.
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