I have been doing a Pnoise analysis . Unfortunately I was unable to plot the phase noise response.
My design was setup was described below.
My apparatus was a PLL with a fixed divider ratio of 20 and output frequency of 500Mz
In PSS analysis I have set the beat frequency as reference frequency ie 25 MHz and given tstab as 5u which is far enough.
In Pnoise tab I have put "output node as VCO output" ie 500MHz node and "Input source kept as none".
And also I have given "noise type as Sources"
Even though the PSS analysis had been converged and done the Pnoise analysis, I haven't got any Phase noise Plot.
Is there any problem in my setup for Pnoisw analysis.Please guide me to overcome this problem.
Thanking you in advance .