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phase noise simulation in driven circuit (Read 4123 times)
yc
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phase noise simulation in driven circuit
Dec 23rd, 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.
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pancho_hideboo
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Re: phase noise simulation in driven circuit
Reply #1 - Dec 24th, 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
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yc
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Re: phase noise simulation in driven circuit
Reply #2 - Dec 25th, 2009, 12:24am
 
thanks a lot!
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Mayank
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Re: phase noise simulation in driven circuit
Reply #3 - Dec 25th, 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.

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Mayank.
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Andrew Beckett
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Re: phase noise simulation in driven circuit
Reply #4 - Jan 3rd, 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.
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