Hello,
Long time ago I was successfully able to disable Flicker noise using "noiseoff_type=[flicker]". This was shown in the last postings of
community.cadence.com/.../referencing-a-model-not-a-model-instance
and made me very happy.
To my knowledge I made zero changes to my setup since then (there may be changes I do not remember/aware of) and suddenly this parameter is ignored again!
This shows relevant sections of the log file:
Spectre (R) Circuit Simulator
Version 17.1.0.160.isr2 64bit -- 26 Jan 2018
Copyright (C) 1989-2017 Cadence Design Systems, Inc. All rights reserved worldwide. Cadence and Spectre are registered trademarks of Cadence Design Systems, Inc. All others are the property of their respective holders.
[...]
Global user options:
vabstol = 1e-12
iabstol = 1e-12
temp = 27
gmin = 1e-12
gmin_check = all
rforce = 1
maxnotes = 5
maxwarns = 5
digits = 5
cols = 80
pivrel = 0.001
sensfile = ../psf/sens.output
checklimitdest = psf
noiseoff_type = 1
save = allpub
subcktprobelvl = 2
reltol = 1e-08
tnom = 25
scalem = 1
scale = 1
[...]
Now going into Results -> Print -> Noise Summary I get this:
This is clearly NOT noisetype_off=[flicker]!
According to the linked post I fixed the problem by moving from MMSIM15.1 ISR10 to SPECTRE16.
Now above you can see I use SPECTRE17 here but I went and used SPECTRE16 and also but it still does not work any more.
What else could be wrong here?