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How to use pss-pnoise output noise spectrum in pll excess phase model

Hello

I ran PSS+Pnoise on LC VCO. Now i have output noise profile in sqr(v)/Hz vs offset frequency. Now i want to use this spectrum in PLL excess phase model(created in virtuoso) to check how PLL will filter this noise.

Please can you help me how to do this. Because i am not getting any source in virtuoso which can read spectrum csv file.

With Regards

Munish

Andrew Beckett over 6 years ago

I'm not sure there's a way of doing that, other than reading the file in VerilogA and consuming it in your model.

There is the ability to specify a single-sideband phase noise file as a noise source on a vsource, but I don't think that will help you here.

Andrew.
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Munish86 over 6 years ago in reply to Andrew Beckett

Thanks Andrew.

Specifying single sideband output noise in sqr(v)/Hz format as noise file in vsource and running noise analysis worked for me.

Thanks
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