HP 8753D User Manual

10.
10
MHZ
PRECISION
REFERENCE
OUTPUT
.
(Option
1D5)
11.
EXTERNAL
REFERENCE
INPUT
connector
.
This
allows
for
a frequency
reference signal
input
that
can
phase
lock
the
analyzer
to
an
external frequency
standard for
increased
frequency
accuracy
.
The
analyzer
automatically
enables
the
external
frequency
reference feature
when a
signal
is
connected
to
this
input.
When
the
signal
is removed,
the analyzer
automatically
switches
back
to
its
internal
frequency
reference
.
12.
A
UXILIARY
INPUT
connector
.
This
allows
for
a
dc
or ac
voltage input
from an
external
signal
source
,
such
as
a
detector
or
function
generator
,
which you
can then
measure,
using
the
S-parameter
menu.
(Y
ou
can
also
use this
connector as
an analog
output
in
service
routines
,
as
described
in
the
service
manual.)
13.
EXTERNAL
AM
connector
.
This
allows
for an
external analog
signal input
that is
applied
to
the
ALC
circuitry
of
the
analyzer's source
. This
input analog
signal amplitude
modulates
the
RF
output
signal.
14.
EXTERNAL
TRIGGER
connector
.
This allows
connection of
an
external
negative-going
TTL-compatible
signal
that
will
trigger
a
measurement
sweep
.
The
trigger
can be
set
to
external
through
softkey
functions
.
15.
TEST SEQUENCE.
This outputs
aTTL
signal
that
can
be
programmed
in
a
test
sequence
to
be
high
or
low
,
or
pulse
(10

seconds)
high
or
low
at
the
end
of
a sweep
for robotic
part
handler
interface
.
16.
LIMIT
TEST
.
This
outputs
a
TTL
signal
of
the
limit
test
results
as
follows:
P
ass:
TTL
high
F
ail:
TTL
low
17.
BIAS
INPUTS
AND
FUSES
.
These
connectors
bias
devices
connected
to
port
1
and
port
2.
The
fuses
(1
A,
125
V)
protect
the
port
1
and
port
2
bias
lines.
18.
TEST
SET
INTERCONNECT
.
This
allows
you
to
connect
an
HP
8753D
Option
011
analyzer
to
an
HP
85046A/B
or
85047A
S-parameter
test
set
using
the
interconnect
cable
supplied
with
the
test
set.
The
S-parameter
test set
is then
fully
controlled
by
the
analyzer
.
19.
F
an.
This
fan
provides
forced-air
cooling
for the
analyzer.
HP 8753D Description and Options 1-11

HP 8753D Specifications

General

Brand	HP
Model	8753D
Category	Measuring Instruments
Language	English