Application Examples
2-6
TDS3000B Serie s User Manual
Customizing Your Measurements
In this example you want to verify that t h e i ncoming signal to a
piece of di gital equipment meets its spec ifications. Spec ifically, the
transition time from a low logic level (0.8 V) to a high logic level
(2.0 V) must be 10 ns or less.
2.0 V
≤ 10 ns
0.8 V
To select the rise time measurement, do these steps:
1. Push the MEASURE button to see the measurement menu.
2. Push the CH 1 button and then the Select Measurement for Ch1
screen button.
3. Select the Rise Time measurement.
Rise time is typically measured between the 10% and 90% amplitude
levels of a signal; these are the default reference levels the
oscilloscope uses for rise time measurements. However, in this
example you need to measure the time the signal takes to pass
between the 0.8 V and 2.0 V levels.
You can customize the rise time measurement to measure the signal
transition time between any two reference levels. You can set each of
those reference l eve ls to a specific perc ent of the signal amplitude or
to a specific level in vertical units (such as volts or amperes).
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