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Question for Peaks on the PNoise Result's Curves (Read 4978 times)

tumeda

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Posts: 37

Question for Peaks on the PNoise Result's Curves
Oct 14^th, 2005, 3:08am

Hi

I would like to know where these peaks on the curves of PNoise simulation come �from ? As the description on the paper "jitter&Noise", after the -20dbc/Hz, the curve should be a flat line.
Hier are the schematic of VCO and PNosie response. If you can not see the pictures, pls use right mouse to show the pictures.
I am very appreciate your help.

« Last Edit: Oct 15^th, 2005, 1:19pm by tumeda »

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tumeda Community Member Offline Posts: 37	Re: Question for Peaks on the PNoise Result's Curv Reply #1 - Oct 15^th, 2005, 1:20pm Pictures are updated! http://img140.photo.163.com/zoujunjx/17445359/441491786.jpg http://img140.photo.163.com/zoujunjx/17445359/441519850.jpg
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Ken Kundert Global Moderator Offline Posts: 2384 Silicon Valley	Re: Question for Peaks on the PNoise Result's Curv Reply #2 - Oct 15^th, 2005, 5:31pm Is the oscillation frequency approx 200MHz? If so, the bumps are the harmonics of the oscillation. -Ken
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