hi,

i am trying to calculate the phase noise for a frequency divider that we have designed in cadence.
when i look for any tutorial on the web, all of them talk about phase noise of an oscillator.
i got one document on the designer's guide though - which talks about the phase noise model of a divider.
it says that one should do pss on the divider and then the pnoise analysis.
but i am confused about what values do i need to give to different parameters like beat frequency, output harmonics etc. while doing the pss analysis
my pss analysis terminates due to error saying that it doesn't converge..
all i am looking for the steps (actually the babysteps) to do the pss and pnoise analysis on the divider with information about the values to be given in different boxes
i am using cadence spectre for the project.
can anyone please help me?

thanks

Agree with the above with one more thing:
Sometimes playing with Tstab by a fraction of the cycle time can help dramatically. you don't want to be near the edges of the squared signal.