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Simulators >> RF Simulators >> strobed Pnoise analysis
https://designers-guide.org/forum/YaBB.pl?num=1203125237

Message started by lianggu on Feb 15^th, 2008, 5:27pm

Title: strobed Pnoise analysis
Post by lianggu on Feb 15^th, 2008, 5:27pm

Hi,

Can anyone tell me "strobed Pnoise analysis" means "noisetype=timedomain" or "noisetype=pmjitter"? For divider phase noise simulation, which "noisetype=?" should be selected? "timedomain" or "pmjitter"?

Title: Re: strobed Pnoise analysis
Post by lonemy on Feb 26^th, 2009, 4:36am

Hi
timedomain should be choosed.
but i dont know how to fill the blank next

Title: Re: strobed Pnoise analysis
Post by Andrew Beckett on Feb 26^th, 2009, 9:58am

It depends on what you're trying to do. Both timedomain and pmjitter are "strobed" - the difference is that pmjitter allows it to do the strobing at threshold crossing(s) automatically, and it then can compute the jitter directly in the Direct Plot form.

So usually you'd use pmjitter. timedomain is useful if you want to strobe at other places to see how the noise varies elsewhere in the period (i.e. not just at threshold crossings).

Regards,

Andrew.