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External
Auxilhry
Input (AUX INPUT)
Inputvoltagelimits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
-1OVto
+lOV
External AM Input
(EXT
AM)
fl
volt into a 5
kQ
resistor, 1
kHz
maximum, resulting in approzimately 8
dB/volt
amplitude
modulation.
External Trigger
(EXT
TRIGGER)
Triggers on a positive or negative
‘ITL
transition or contact closure to ground.
-TO
SWEEP
TRIGGER
CIRCUITRY
pg6145d
EXT
TRIGGER
Figure 7-1. External Trigger Circuit
Test Sequence Output (TEST SEQ)
This connector outputs a
TI’L
signal which can be programmed by the user in a test sequence
to be high or low. By default, this output provides an end-of-sweep
TI’L
signal. (For use with
part handlers.)
Limit
lkst
output (LIMIT TEST)
This connector outputs a
TTL
signal of the limit test results
Pass:
lTL
high; fail:
TTL
low.
Test
Port Bias Input (BIAS
CONNECIJ)
Maximum voltage
.......................................................................
+ 30
Vdc
Maximum current (no degradation in RF specifications)
...............................
f200
mA
Maximum current
...........................................................................
fl
A
Video Output (VGA OUT)
The.VGA
OUT connector drives VGA compatible monitors with these characteristics:
q
640 (horizontal) x 480 (vertical) resolution
q
59.83 Hz vertical refresh rate
cl
16.716
mS
vertical time
q
31.41
kHz
horizontal refresh rate
q
31.840
PS
horizontal time
q
75 ohm video input impedance
q
video analog amplitude 0.7 Vp-p
q
negative true
TlL
logic for vertical and horizontal synchronization
7-18
Specifications and Measurement Uncertainties