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Model 5344S
Operation and Programming
3-130.
Throughout this manual, the 8350A Sweep Oscillator and an 83592A (.01 to 20.0 GHz)
plug-in are used for examples and discussion. Since an 8620 series Sweep Oscillator may also be
used,
Table 3-9
cross references the connectors (input/output) of the sweeper mainframe. Refer
to
Table 3-7
for compatibility of the 8620 series mainframes with the 5344S.
Table 3-9. 8350A/8620 Series Connector Cross Reference
8350A
8620A/B/C
Function
SWEEP OUT/IN
(Front/rear panel)
SWEEP OUT
(Front panel)
0 to +10V ramp concurrent with sweep.
Used to detect end of sweep.
EXT TRIGGER
(pin 9 of the
Programming
Connector)
SWEEP OUT/IN
(Front-rear panel)
EXT TRIGGER
(Rear panel)
Initiates a sweep.
CNTR TRG
(Rear panel)
None
Output to externally trigger 5343A Counter.
STOP SWEEP
(Rear panel)
None
Input to stop progress of a forward sweep.
For use with a 5343A Counter.
FM INPUT*
(Rear panel)
None*
(Located at rear
of plug-in)
Frequency Modulation input
♦Note: The FM input for 83500 series plug-ins is located on the rear panel of the 8350A mainframe. If an 86000 series
plug-in is used with the 11869A RF Plug-in Adapter in the 8350A, the 86000 series FM input is routed to the 8350A rear
pane! FM INPUT. The 86200 series FM INPUT is not available at the rear of the plug-in.
3-131.
Using the 5344S With an 8640A/B Signal Generator
3-132.
The 8640A/B Signal Generator cannot safely handle the -10 Volt signal that the 5344S can
apply to its FM input port. The circuit shown in
Figure 3-7
installed between the 5344S FM OUT
and the 8640 FM INPUT will protect the 8640 from excessive voltage and does not degrade
specified performance.
Zener Diode
2.87V, 5%
400 mW power dissipation
HP Part Number 1902-3024
or equivalent
Figure 3-7. 5344A/8640A/B Interface Circuit
3-29
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