Performance Verification
14
013-0278-00 Video Display Clamp
50
Ω
terminator
Video display clamp
Coaxial Cable
Pulse
Generator
2.5X attenuator
Dual-input
coupler
Figure 11: Crosstalk test setup
3.
Set the pulse generator as follows:
H
Set the compliment to --
H
Adjust the period to 15 kHz
H
Adjust the pulse duration to 5
s
H
Set the high level to 0 V
H
Set the low level to --300 mV
4.
Set the Video Display Clamp as follows:
H
Polarity
to
--
(negative)
H
Filter
to
Off
5.
Set the test oscilloscope to display channel 1 (channel 2 off).
6.
Verify that any interference on the high level of the pulse is <10 mV
p-p
(see
Figure 12).