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Simulators >> RF Simulators >> phase noise simulation in driven circuit
https://designers-guide.org/forum/YaBB.pl?num=1261590949

Message started by yc on Dec 23^rd, 2009, 9:55am

Title: phase noise simulation in driven circuit
Post by yc on Dec 23^rd, 2009, 9:55am

Dear All,

Anybody has an idea using Spectre to simulate phase noise for driven circuits (CMOS logic circuit or differential buffers)? PNoise(source type) is applicable for automomous circuits I think. Anyone has other procedure for those driven circuit? Thanks a lot.

Title: Re: phase noise simulation in driven circuit
Post by pancho_hideboo on Dec 24^th, 2009, 1:26am

Any vendor's small signal noise analysis subjected to master large signal steady state analysis is applicable for both driven and autonomous circuits without any confusion.

Of course, you can adopt pnoise analysis of Cadence Spectre for driven circuit with almost same setting for autonomous circuits.

See the followings.
http://www.designers-guide.org/Forum/YaBB.pl?num=1207830622
http://www.designers-guide.org/Forum/YaBB.pl?num=1208866022
http://www.designers-guide.org/Forum/YaBB.pl?num=1215056515
http://www.designers-guide.org/Forum/YaBB.pl?num=1239205157

Title: Re: phase noise simulation in driven circuit
Post by yc on Dec 25^th, 2009, 12:24am

thanks a lot!

Title: Re: phase noise simulation in driven circuit
Post by Mayank on Dec 25^th, 2009, 7:11am

Hi,
Pnoise - time domain is pnoise analysis for driven circuits. Also refer to Ken's paper on Pnoise+Jitter. There he explains it beautifully.

--
Mayank.

Title: Re: phase noise simulation in driven circuit
Post by Andrew Beckett on Jan 3^rd, 2010, 12:39pm

Mayank,

You don't have to use the timedomain option for pnoise if the circuit is driven. It entirely depends on what you're trying to measure!

Regards,

Andrew.