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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?
In reply to Andrew Beckett:
Thank you for your prompt answer!
Please find attached to this post:
the input.scs file, the verilogA model of noise, and the simulations results: transient, noise, PSS, Pnoise and noise summary for phase noise.
The Phase noise and its associated noise summary show that there is only Flicker noise contribution to phase noise but there is still 0 slope phase noise and 1/f2 slope phase noise whereas there should be only 1/f slope and 1/f3 slope phase noise !
I hope you have enough informations..
In reply to lraf:
still no answer....... snifff.....