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Trigger Output Test; External Trigger Mode (Slow) Test; Trigger Output Test Setup; External Trigger Mode (Slow) Test Setup - HP 8081A Operating And Service Manual

300mhz rate generator module
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4-8
TRIGGER OUTPUT TEST
3.
Measure Ampl itude, Baseline and Duty Cycle.
SPECIFICATION
Trigger Output Pulse
,-.6V
±
50mV
to OV ± 50mV
Duty Cycle
50 % ± 10 %
I-t
on
J-t
Off-J
Baseline
DESCRIPTION
The trigger output pu Ise parameters are tested.
Amplitude should be . ,
6V
±
50mV
Baseline should be
OV ± 50mV
Duty Cycle shou Id be
50 %
~
10 %
ton
x 100%
period
4-9
EXTERNAL TRIGGER MODE
(SLOW) TEST
Duty cycle
=
o
SAMPUNG
OSCI LlOSCOPE
D
01
8080A MAINFRAME
80S1A
Figure 4-2. Trigger Output Test Setup
SPECI FICATION
EQUIPMENT
The repetition rate output is controlled externally. The
trigger and internal outputs are pulse-shaped versions of
the trigger input.
Sampling oscilloscope
HP 182C Mainframe
with 1810A plug-in
DESCRIPTION
PROCEDURE
1.
Set up the equipment as shown in figure 4-2 and
set the controls as follows:
The function of the Model 8081 A is tested in external
trigger mode using an external sinewave generator to
apply a trigger signal of 10KHz.
so
OHM
TERL4lNATlON
,
REI>,L TIME
OSCILI,OSCOP~
RATE range
300MHz-100MHz
Rate V ERN I ER
, .. ,
,
CW
Operating Mode switch
NORM
NEG-POS-MAN switch
POS
8081A:
Oscilloscope
50QHM
T£~
2.
Sensitivity .. ,
200mV/div
Trigger
internal
Timebase mode
expanded
Timebase - direct
20ns/div
Timebase - expanded
2ns/div
Set Frequency to 100MHz on screen using Rate
VERNIER.
Figure 4-3. External Trigger Mode (Slow) Test Setup
EQUIPMENT
Oscillator
,
HP 651 B
Real Time Oscilloscope
HP 182C Mainframe
with 1804A and 1821 A plug-ins
50 Ohm Feedthru Termination
HP 10100C
/

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