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Advanced Functions
Example: Expected sweep time for 401 points and a measurement period of
3.06 ms
sweep time = 3.06 ms • 401 frequency points = 1.2 s
Some devices under test require a settling time when the input frequency has
been changed (e.g. phase-locked loops). The DUT delay allows setting this
waiting time.
Let's assume our DUT requires a 10 ms settling time each time the input
frequency has changed. To allow for this waiting time, enter 10 ms in the DUT
delay box.
Figure 9-16:
Setting the DUT delay
The measurement period is automatically updated. When using the same
number of measurement points as before, the sweep time is now much longer.
sweep time = 13.06 ms • 401 frequency points = 5.23 s
Hint: Set the DUT’s delay to zero after your measurement is completed to
ensure the shortest sweep time possible for next measurements.
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