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