Equipment
•
Counter (HP 5335A
)
•
Cable Assembly BNC
•
50
n
Feedthrough Termination
(
Required if counter input impedance
i=
50
n).
Test Setup
Counter
(H P 5 33 5A)
H P 8112A
0
0
Figure
8·
7. Duty Cycle Performance Test
Procedure
1. Connect the equipment as shown in the setup figure. Use a
Note
50 n
feedthrough termination if you cannot select 50
n
input
impedance on the counter.
2. Set up the HP 81 12A as follows:
Input Mode
NORM
Control Mode
Off
Transition
PER
DEL
HIL
101
Fixed
lOOµs
65 ns
1.00
v
- 1 .00
v
3. Set the counter to DTY CY A.
4 .
Set the HP 81 12A DTY to the following values and read the
actual output from the counter. Record your results on a copy of
the Test Record, specified limits are given here and on the Test
Record.
HP 8112A
Cowiter reading
setting
DTY
Low Limit High Limit
1 .0%
0.9%
1 . 1%
10%
9%
1 1%
50%
45%
55%
90%
81%
99%
*993
89. 1%
-
*
Using the
key adjust the duty cycle in steps until the
counter displays 993.
Testing Performance
8· 1 1
Summary of Contents for 8112A
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Page 144: ...8 32 Testing Performance ...
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Page 194: ...10 2 4 Servicing the Power Supply ...
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Page 240: ...10 4 16 Servicing the Shaper and Output Amplifier ...
Page 242: ...A R l BD RY MR I N 1 2 7 I I IJt 51 CR1 B e i 1 _ _ _ _ 20 ...
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Page 262: ...A B A2 ED RY CONTROL ...
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Page 290: ...R B c R3 BD RY M I CROPROCESSOR 1 2 3 FIGURE 1 0 7 8 ...
Page 294: ... 8 X2l 2 X2 Figure A 1 Mechanical Parts 1 A 2 Replaceable Parts ...
Page 295: ...MP MP3 MP MP2 MP4 MPS MP 1 2 MPS MP MP I B ElElElEl Replaceable Parts A 3 ...
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Page 378: ...Figure B 14 Mechanical Parts 1 B 44 Backdating ...
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