Jitter Performance - HP 8133A Service Manual

Jitter Performance

3-24
Testing the HP Pulse Generator
87. Set up the HP 8133A Pulse Generator as follows:
88. On the oscilloscope:
a. Press
Select the display menu and set Average mode with Number
b.
Averages 64.
of
c. Set the Elandwidth to 20 GHz.
d. Select the Trigger menu and switch HF Sens on.
e. Select the Delta V
Set the Preset Levels to 50-50% and press Auto Level Set.
f.
g. Select the Delta t menu and switch on the T Markers.
h. Set STAFCT ON POS EDGE 1 and STOP ON NEG EDGE 2.
Press Precise Edge Find:
i.
Select the Timebase menu and set the TIME/DIV to 20 ps/div.
j .
Adjust the Delay until the 2nd negative edge is centered
k.
(approximately 60
Select the Channels menu and set the Channel
1.
20 mV/div.
m. Set the OFFSET to 0
n. Select More and then the Histogram menu.
Select Time Histogram.
p. Select Source is Chan 4.
Set the Window Marker 1 to
q.
SQUARE
HIGH i l . 5 V HIGH + 1 . 5 V HIGH + 1 . 5 V HIGH + 1 . 5 V
LOW LOW LOW - 1 .5 V
menu and switch on the
ns).
V.
+
15 mV.
PULSE
LOW
V Markers.
4