layes
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Hi everyone > I am an eng. of PLL. > I have read you paper "predicting the phase noise and jitter in PLL" > Now I am interesting in the jitter of the Pll output . I mean the one > after the vco buffer for other block using. > So I measure the Pll output periods after it is stable and > generate the 'periods.m' > > I did not include FD in the vco. > and the parameters I used are: Fout = 480MHz Fin=12MHz N=40 and M=1 > > my question are: > 1.in your matlab code how to choose 'nfft' > 2.Is that Sphi=L in the matlab generate graph. > 3.In the curve that matlab generate ,why we choose 100kHz as the delta(f)? > how should we choose it? > 4.What is the resolution bandwidth affect our performance? > > Hoping for your reply > Thank your very much > Qiancheng
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