Test 2: Width
Test Specifications
Ilange 10.0 ns to 150 ms
flesolution
3 digits, best case 100 ps
Accuracy
It
 5% 
It
 500 ps
I1MS-Jitter
0.03% 
+25
 ps (0.05% 
+25
 ps for 50 ns <width 
~100
ns)
Equipment Needed
Digitizing Oscilloscope with Accessories
Counter
Cable, 50 
0,
 coaxial, BNC
Procedure
1.
 Connect HP 
8114A
 to the Scope as shown:
riF’
 
8
  I 
l4A
 
UNDER
 
TES;
Ho
 54 I 2 IT 
FRCINT-END
WFH
 
SM‘VBNC
ADAPTOR
Connecting 
FIP
 8114A to the Scope
2.
 On the HP 8114A press TRIGGER and set up page as follows:
. 
C:ijf.jTI
 
t.JfJ[ll_i::;
 
F’!ji_S&
n 
:jj.r,gj.t+:
 
p:-lj.se~:
3. On the HP 8114A press 
m
 and set up 
UJTPUT
 page as shown
in the following illustration:
Configuring the Output Page
4. Set the Digitizing Oscilloscope HP 54121T:
n 
Press 
[AUTOSCALE)
n Select the Display menu and set the Number of Averages to 32
n Select the delta V menu and turn the voltage markers On
n  Set the preset levels to 50% -50% and press (AUTO LEVEL SET]
Testing the HP 
g114A
3-7