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Design >> RF Design >> Jitter and phase noise conversion?
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Message started by liletian on May 9^th, 2009, 7:27pm

Title: Jitter and phase noise conversion?
Post by liletian on May 9^th, 2009, 7:27pm

Hi guys
I found a jitter and phase noise conversion equation from Page 146, book "The Design of Low Noise Oscillators", Jitter=sqrt(1/f).(delta_omega/Omega_center).10^(L(delta)omega)/20).
So for a center frequency of 2GHz, phase noise is 100dBc/Hz at 1MHz, the jitter will be sqrt(1/2e9)*(1e6/2e9)*10^(100/20)=0.11ps jitter, am I right?
Or there has some other ways to do this conversion. Thank you for your help.

Title: Re: Jitter and phase noise conversion?
Post by rfmems on May 10^th, 2009, 2:54am

Hi liletian,

that is only true if your osc has only white noise and the pahse noise is exactly -20db/dec.