Agilent Technologies 93000 SOC Series Training Manual page 482

Measuring Pin Margins 17-2 Pin Margin Setup
How the delta percentage window is defined is shown in Figure 291.
Valid values for a Delta Percentage of 50%
50% Delta (-) 50% Delta (+)
max
min
0.5*(actual value - min)
0.5*(max - actual value)
actual
value
Figure 291 The Delta Percentage Filter
Step Mode The step mode option lets you specify how many steps you want
between your positive and negative limits. Another feature is that when
it comes to a transition, no more points are tested. This can be useful as
fast check of your pin margin.
1 Select Settings
in the pulldown menu.
Step Mode
2 Activate the
Only Test to First Transition check box.
3 Key in the number of steps required, and click on
done when
finished.
Selecting and Changing Primary Sets
You can change the timing, level, waveform and DPS primary sets by
changing either the set number or the set name. See Figure 292.
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Agilent 93000 SOC Series User Training Part 1, October 2004