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strobed Pnoise analysis (Read 3003 times)
lianggu
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strobed Pnoise analysis
Feb 15th, 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"?
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lonemy
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hefei anhui china
Re: strobed Pnoise analysis
Reply #1 - Feb 26th, 2009, 4:36am
 
Hi
timedomain should be choosed.
but i dont know how to fill the blank next
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Andrew Beckett
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Re: strobed Pnoise analysis
Reply #2 - Feb 26th, 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.
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