HP 54753A User Manual page 172

Figure 8-17
1
2
3
4
5
Differential TDR Measurements
Making Differential TDT Measurements
Press the SETUP Channel 3
Press the Display softkey to turn on the channel 3 display.
Press the
SETUP Channel 4
Press the Display softkey to turn on the channel 4 display.
Change the demo board switch position to on.
This places a 10 pF capacitive load on one of the differential lines. Note that
the response waveform is no longer flat and the transmitted steps on channels
3 and 4 no longer overlay each other (Figure 8-18). This is due to the fact that
the differential lines are unbalanced.
8-24
key of the electrical plug-in module.
key of the electrical plug-in module.