The Designer's Guide Community Forum

The Designer's Guide Community Forum
https://designers-guide.org/forum/YaBB.pl
Simulators >> Circuit Simulators >> pnoise analysis statement in Artist vs. Ocean
https://designers-guide.org/forum/YaBB.pl?num=1186867459

Message started by alanlcit on Aug 11^th, 2007, 2:24pm

Title: pnoise analysis statement in Artist vs. Ocean
Post by alanlcit on Aug 11^th, 2007, 2:24pm

I am attempting to script some jitter analysis, and I'm running into difficulties. In Artist, I set up the jitter analysis as follows in the pnoise form:

Sweeptype relative, relative harmonic 0
start 400 stop 400k
sweep type logarithmic points per decade 3
maximum sideband 50
positive output node /noise_check
negative output node /gnd!
noise type: jitter (FM jitter for autonomous circuit)

If I dump the Artist environment to an oceanScript using Session->Save Script, it spits out the following for the pnoise analysis statement:
analysis('pnoise ?relharmnum "0" ?start "400" ?stop 400k"
?dec "3" ?maxsideband "50" ?p "/noise_check" ?n "/gnd!"
?oprobe "" ?iprobe "" ?refsideband "" ?noisetypeUI "jitter"
?thresholdvalue "" ?crossingdirection "all")

So I cut and paste this into my ocean script, which I run from the OCEAN command line interface.
When the noise simulates in OCEAN, it does not do the same analysis as it does from the Artist Environment.
In the artist environment, two sweeps are done: jitter 1 from 400->400k, and jitter2 from -400->-400k

In the OCEAN environment, the tool sweeps from 400->400k, over and over and over again...the pnoise analysis doesn't ever seem to stop.

Why? What is the correct OCEAN/analysis statement to use to get the results I want?