Designer’s Guide Community

lokesh gandhi New Member Offline Posts: 4	Phase noise Feb 05^th, 2012, 11:27pm Hi all, Can some body help me out understand what is phase noise and peaking in pll...? Thanks, Loks
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raja.cedt Senior Fellow Offline Posts: 1516 Germany	Re: Phase noise Reply #1 - Feb 6^th, 2012, 12:46am http://www.chic.caltech.edu/Publications/phase_tutor.pdf basically phase noise is single side band noise to carrier ratio. It's difficult to explain entire theory, in fact you can refer the above pap and ask Questions. Thanks, Raj.
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lokesh gandhi New Member Offline Posts: 4	Re: Phase noise Reply #2 - Feb 6^th, 2012, 8:50am Thanks raj.
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Kevin Aylward

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Posts: 52

Re: Phase noise
Reply #3 - Jul 6^th, 2013, 2:07am

I would not really refer to that referenced paper as a tutorial on phase noise, especially for assumed beginners. That paper is a tutorial on the HL-LTV method of analyzing phase noise specifically in oscillators, and is rather technically advanced. It is also wrong, having been superseded by techniques that actually do correctly predict up-converted phase noise. e.g. SpectreRF. I would suggest my own tutorial for the basics of what phase noise is
http://www.kevinaylward.co.uk/ee/phasenoise/PhaseNoiseTutorial.xht, �:) and http://www.kevinaylward.co.uk/ee/phasenoise/LTV.xht for what is wrong in the HL-LTV approach.

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Kevin Aylward

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aaron_do

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Re: Phase noise
Reply #4 - Jul 7^th, 2013, 5:57pm

Hi Kevin,

the articles on your website are interesting. However, the equations are difficult to read as there doesn't seem to be any formatting on them...for example,

Φ(t)= ω 0 R C 0 (1+ k v1 v n + k v2 v n 2 )− ω 0 3 R 3 C 0 3 3 (1+ k v1 v n + k v2 v n 2 ) 3

Is that by design, or is there some other way to read the page so that I can see the equations in the proper formatting?

thanks,
Aaron

EDIT:

seems like I need to either install firefox, or mathplayer for IE, but my work computer won't allow me to...guess I'll view the docs at home.

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