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Pnoise analysis

Jithin

Hi,

I have been doing a pnoise analysis for a PLL . Looking into the Pnoise simulation profile I have found a tab

regarding thevalue for " Reference sideband" .What is the value that I should put while my "Maximum number of sidebands =7".

With Regards,

Jithin K 

Parents
  • Jithin
    Hi,

    I have been done the Pnoise analysis setting noise type as "sorces". Unfortunately I was unable to plot the phase noise response.
    My design was  "Pnoise analysis" and the 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 20 MHz. In Pnoise tab I have put output node as VCO output ie 500MHz node and Input source kept as none.
    Even though the PSS analysis had been converged and done the Pnoise analysis, I haven't got any Phase noise Plot.
    Please guide me to overcome this problem.


    Thanking you .

    With regards,
    Jithin
Reply
  • Jithin
    Hi,

    I have been done the Pnoise analysis setting noise type as "sorces". Unfortunately I was unable to plot the phase noise response.
    My design was  "Pnoise analysis" and the 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 20 MHz. In Pnoise tab I have put output node as VCO output ie 500MHz node and Input source kept as none.
    Even though the PSS analysis had been converged and done the Pnoise analysis, I haven't got any Phase noise Plot.
    Please guide me to overcome this problem.


    Thanking you .

    With regards,
    Jithin
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