16 Analyzing Data
346 InfiniiVision 7000B Series Oscilloscopes User’s Guide
If you press Create Mask and it appears that no mask was created, check
the ± Y and ± X settings. They may be set so large that the mask is not
visible.
Setup Options
Run Until
The Run Until softkey lets you specify a condition on which to terminate
testing.
Forever The oscilloscope runs continuously. However, if an error occurs
the action specified using the On Error softkey will occur.
Minimum # of Tests Choose this option and then use the #ofTests softkey
to select the number of times the oscilloscope will trigger, display the
waveform(s), and compare them to the mask. The oscilloscope will stop
after the specified number of tests have been completed. The specified
minimum number of tests may be exceeded. If an error occurs the action
specified using the On Error softkey will occur. The actual number of tests
completed is displayed above the softkeys.
Minimum Time Choose this option and then use the Tes t Ti me softkey to
select how long the oscilloscope will run. When the selected time has
passed the oscilloscope will stop. The specified time may be exceeded. If
an error occurs the action specified using the On Error softkey will occur.
The actual test time is displayed above the softkeys.
Minimum Sigma Choose this option and then use the Sigma softkey to
select a minimum sigma. The mask test runs until enough waveforms are
tested to achieve a minimum test sigma. (If an error occurs the
oscilloscope will perform the action specified by the On Error softkey.) Note
that this is a test sigma (the max achievable process sigma, assuming no
defects, for a certain number of tested waveforms) as opposed to a
process sigma (which is tied to the amount of failures per test). The sigma
value may exceed the selected value when a small sigma value is chosen.
The actual sigma is displayed.
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