User`s guide

Creating a rise time testing mask
Mask template testing can be used to test the rise time of a signal, including
specifying an upper limit for rise time. For example, you can specify that the
rise time must be 15 ns or faster to pass the test.
1 Determine the top and base of the signal.
Use the automatic measurement V top and V base of the oscilloscope to
determine these values.
2 Calculate the 10% and 90% points.
3 Determine the upper limit for the rise time.
4 Draw the mask template using the mask editor.
The mask should look similar to the one in figure 15. Use the voltage and
time read outs of the mask editor to ensure the correct settings. In the figure
15, T1 and T2 are the critical points for determining the maximum rise time
limit (Rise time limit = T2 - T1).
Rise time testing mask
Figure 15
Solutions
Creating a rise time testing mask
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