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Simulators >> Circuit Simulators >> Spectre parasitic reduction
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Message started by Rapid on Dec 7^th, 2010, 1:24am

Title: Spectre parasitic reduction
Post by Rapid on Dec 7^th, 2010, 1:24am

Hi all,
In the Analog Design Environment/Setup/"Spectre turbo/parasitic reduction", I've enabled Parasitic Reduction and Options, Fmax=5GHz. What does this Fmax parameter actually do? What does Default and RF do? Where can I find more information about it?

Thanks!

Title: Re: Spectre parasitic reduction
Post by Frank Wiedmann on Dec 7^th, 2010, 1:54am

You can find this in the section "Parasitic Reduction" right at the beginning of the "Virtuoso Spectre Circuit Simulator User Guide". Default is 1 GHz, RF is 30 GHz. The idea is probably that the circuit behavior remains essentially unchanged by the parasitic reduction up to the specified frequency.

Title: Re: Spectre parasitic reduction
Post by Rapid on Dec 7^th, 2010, 2:04am

Oh, thanks! Our version of the manual is from June 2008 so it seems like that information has been added later. Are you having a newer manual?

Title: Re: Spectre parasitic reduction
Post by Frank Wiedmann on Dec 7^th, 2010, 4:00am

The information is available in the manual for version 7.2 (May 2010).