hi all,

i have a oscillator followed by frequency multiplier, i wanted to know the phase noise chaterstics at output of frequency multiplier.

i use cadence for simulation of my circuit,

problem is chosing the oscillator i am getting diffrent Phase noise charaterstic when i choose 1)oscillator as oscillator
2)frequency multiplier output as oscillator
can u tell me what is the write output(oscillator) to choose

Thanks stefen
I am measuring phase noise at output of frequency multplier
problem is when in PSS analysis i have to chose oscillator node,
so my Question is what oscillator nodes i have to choose in pss analysis,is it oscillator output or frequency multiplier output(for both i am getting diffrent phase noise results what is the correct one)
and why