I have a problem with Flicker phase noise of a quartz crystal oscillator (RLC equivalent cirucit + opamp current amplifier + opamp inverter) simulated with PSS + Pnoise of CADENCE:
Indeed I simulate the phase noise of a quartz crystal oscillator and I include only Flicker noise (verilogA) in the feedback opamp inverter. The simulated phase noise shows white phase noise, f-2 phase noise and f-3 phase noise near the carrier, instead of only f-1 phase noise and f-3 phase noise!
Can you please help me solve this problem?
Best regards
Raphael