Performance Verification and Adjustments
1
Keysight 8990B Service Guide
31
Rise and fall time verification
The rise and fall time performance of the instrument path must be quantified
accurately. This test however, is more of a system-level verification, validating the
rise and fall time with the N1923/4A using an actual RF pulse.
Required test equipment:
– 1 unit of E8257D signal generator
– 1 unit of 33334EZ diode detector
– 1 unit of oscilloscope with bandwidth
>
500 MHz
– 1 unit of U2032A trigger cable
– 1 unit of N1923/4A wideband power sensor (DUT)
System specifications:
– Rise/fall time:
≤
5.5 ns
±
% error (Refer to
)
– Overshoot: 0.5%
Figure 1-4
Measured rise time percentage error versus signal-under-test
rise time
Содержание 8990B
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