Andrew Beckett
Senior Fellow
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Life, don't talk to me about Life...
Posts: 1742
Bracknell, UK
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Essentially the tdnoise feature (the strobed noise analysis) of pnoise allows you to strobe the noise at each timestep that was performed in the PSS analysis. In practice you don't want all of them, so Noise Skip Count allows you to strobe every nth timepoint, and Number of Noise Points allows you to distribute n points evenly over the timepoints in the PSS.
For measuring jitter however, you're mainly interested in the noise at the transitions - so you want to specify the timepoint for the transition point.
Better still, if using a recent version (there were some problems in IC5033 when this was introduced, but should be OK in IC5141), you can use the "jitter" mode of pnoise, which allows you to specify the threshold value - then it will automatically do the strobing at the threshold, and also capture the slope of the PSS time domain results at that point.
Best Regards,
Andrew.
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