HP 8753D Option 011 User Manual

A16
Rear P
anel
The A16
rear panel
includes the
following
interfaces:
TEST
SET I/O
INTERCONNECT.
This
allo
ws
y
ou
to
connect
an
HP
8753D
Option
011
analyzer
to
an
HP
85046A/B
or
85047A
S-parameter test
set using
the in
terconnect cable
supplied
with
the test
set. The
S-parameter test
set is
then
fully
con
trolled
b
y
the
analyzer.
This
interface
also pro
vides con
trol signals
and
p
o
w
er
to
op
erate
duplexer
test
adapters.
EXT
REF.
This
allo
ws
for
a
frequency
reference
signal
input
that
can
phase
lo
c
k
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
remo
v
ed,
the
analyzer
automatically
switc
hes
bac
k
to
its
in
ternal
frequency
reference.
10
MHZ
PRECISION
REFERENCE. (Option
1D5) This
output is
connected
to
the
EXT
REF
(describ
ed
ab
o
v
e)
to
impro
v
e
the
frequency
accuracy
of
the
analyzer.
A
UX
INPUT.
This
allo
ws
for
a
dc
or
ac
v
oltage
input
from
an
external
signal source,
suc
h
as
a
detector
or
function
generator,
whic
h
y
ou
can
then
measure,
using
the
S-parameter
men
u.
(You
can also
use this
connector as
an
analog
output
in
service
routines.)
EXT
AM.
This
allo
ws
for
an
external
analog
signal
input
that is
applied to
the
ALC
circuitry
of
the
analyzer's
source.
This
input
analog
signal
amplitude
mo
dulates
the
RF
output signal.
EXT
TRIG.
This
allo
ws
connection
of
an
external
negative
TTL-compatible
signal
that
will
trigger
a
measuremen
t
sw
eep.
The
trigger
can
b
e
set
to
external
through
softk
ey
functions.
TEST
SEQ.
This
outputs
a
TTL
signal
that
can
b
e
programmed
in
a
test
sequence
to
b
e
high
or
lo
w,
or
pulse
(10
seconds)
high
or
lo
w
at
the
end
of
a
sw
eep
for
a
rob
otic part
handler
in
terface.
LIMIT
TEST.
This
outputs
a
TTL
signal
of
the
limit
test
results
as
follows:
P
ass:
TTL
high
F
ail:
TTL lo
w
Source Theory Ov
erview
The source pro duces a highly stable and accurate RF output signal b
y phase
lo c
king a YIG
oscillator to a harmonic
of the syn
thesized VCO (v
oltage con
trolled oscillator). The source
output pro duces a CW or sw
ept signal b et
ween 300 kHz and 3 GHz (or
30 kHz and 6 GHz for
Option 006). The source has a maximum lev
eled po
wer of +20 dBm (or +18 dBm for Option
006) and a minim
um p o
wer of
0 5dBm.
The full frequency range of the source is pro duced in 14 subsw
eeps, one in super lo
w band,
twoinlow band and eleven in high band. The high band frequencies (16 MHz to 3 GHz)
or (16 MHz to 6 GHz for Option 006) are achieved by harmonic mixing, with a dierent
harmonic number for eachsubsweep. The low band frequencies (300 kHz to 16 MHz) are
down-converted by fundamental mixing. The super low band frequencies (10 kHz to 300 kHz)
are sent directly from the A12 reference b oard to the output of the A3 source assembly.This
DRAFT
3/21/106 15:14
Theory of Operation 12-9
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HP 8753D Option 011 Specifications

General

Brand	HP
Model	8753D Option 011
Category	Measuring Instruments
Language	English