Filter
Top Products
Characteristic
Speclfication
-
494Al4g4Ap
Service,
Vol.
1
Table
2-3
(Continued)
INPUT
SIGNAL
CHARACTERISTICS
Supplemental
Inf ormation
Internal
Control.
High (default)
selects
internal
control.
lnstrument
bus lines
are
output
at
the
J104 ACCESSORy
connector.
Low
selects
External
control.
lnstru-
ment
bus lines
at
the
J104
AccES-
SORY
connector
accept
input
from
an
external
controller.
Chassis
Ground
Instrument
Bus Address
lines
7-0a
Instrument
Bus
Data
Valid
signala
Instrument
Bus
Service
Request
sig-
nal
Instrument
Bus Poll
signala
Data
Bus
Enable
input
signal
for
external
controller.
High
(unasserted)
disables
external
data
bus.
Low
enables
external
data
bus.
Instrument
Bus
Data
lines
0-7
Active
when
external
Data
Bus
Enable
(pin
17) is
low.
J1 04
ACCESSORy
(Continued)
Pin 4
Pin
5
Pins
6-13a
Pin14a
Pin
15
Pin
16a
Pin 17
Pins
18-25
soutput
when
internally
controlled
{pin
4 high)
and
input
when
externally
controled (pin
4 low).
Table
2-4
OUTPUT
SIGNAL
CHARACTERISTICS
Characteristic
Perf
ormance
Requirement
Supplemental
Inlormation
ualrbrator
(cAL
ouT)
-20
dBm
*0.3
dB
at
100
MHz
100
MHz
comb
of markers
provide
amplitude
calibration
at-1
00 MHz
Phaselocked
to reference
oscillator
1st
LO and
2nd
LO
OUTpUTs
Provide
access
to the output
of
the
respective
local
oscillators
THESE
PORTS
MUST
BE TER-
MINATED
IN
50
O AT
ALL TIMES.
1st LO
OUTPUT
power
+7.5
dBm
to
+15
dBm
2nd
LO
OUTPUT
power
-12
dBm.*5
dB
aover
lhe
operating
temperature
range
this
is +15
ppM.
2-13