I originally posted this msg under rf simulator, but I think this fits better here.
Thanks!
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I attached a very very simplified version of the ckt here. The DC source is to bias the transistor (represents the control voltage). I need to be able to see the effect of the noise of the resistor on the output with pss - pnoise simulation. What I observe right now is that the DC suppresses the resistor noise. Is there any way to do this?
Thanks!
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Hello,
I need to simulate pll open loop phase noise in spectreRF (pss-pnoise).
My circuit hasa CP - LPF -V2I - I2I - RO. I need to see what the effect of each component is to the phase noise.
The problem that I am facing now, is that I need to set the control voltage to some value, but I am concerned that if I put a DC voltage source there, then it may suppress the effect of noise because the node is helt at a constant voltage.
So, it would be great if someone can answer this,
After PSS analyze the steady state of the circuit with all bias conditions, does pnoise calcultes the noise on top of the dc bias? or will the dc bias have effect on pnoise as well?
Thanks!