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General characteristics
Front panel connectors
HP 8753ES test ports (without Option 011)
Connector type
7 mm, precision
Impedance
50 ohms (nominal)
HP 8753ES Option 011 test ports
Connector type
Type-N female
Impedance
50 ohms (nominal)
HP 8753ES Option 075 test ports
Connector type
Type-N female
Impedance
75 ohms (nominal)
HP 8753ET test ports
Connector type
Type-N female
Impedance
50 ohms (nominal)
Probe power
+15V ±2% 400 mA
(combined load for both
probe connections)
-12.6V ±5.5% 300 mA
(combined load for both
probe connections)
Rear-panel connectors
External reference frequency input (EXT REF INPUT)
Frequency
1, 2, 5, and 10 MHz
(±200 Hz at 10 MHz)
Level
-10 dBm to +20 dBm, (typical)
Impedance
50 ohms
Connector
BNC (f)
High-stability frequency reference output
(Option 1D5)
Frequency
10.0000 MHz
Frequency stability
±0.05 ppm
(0 ˚C to 55 ˚C)
Daily aging rate
(after 30 days)
<3x10
-9
/day
Yearly aging rate
0.5 ppm/year
Output
0 dBm minimum
Nominal output
50
Ω
Connector BNC (f)
impedance
External auxiliary input (AUX INPUT)
Input voltage limits
-10V to +10V
External AM input (EXT AM)
±1 volt into a 5 k
Ω
resistor,
1 kHz maximum, resulting in
approximately 8 dB/volt
amplitude modulation.
BNC (f) connector.
External trigger (EXT TRIGGER)
Triggers on a negative TTL
transition or contact closure
to ground. BNC (f) connector.
Test sequence output (TEST SEQ)
By default, this connector outputs a TTL end-of-sweep
signal. It can also be programmed by the user in a test
sequence to output a user-defined TTL signal. BNC (f)
connector.
Limit test output (LIMIT TEST)
This connector outputs a TTL signal of the limit test
results. Pass: TTL high. Fail: TTL low. BNC (f) connec-
tor.
Test-port bias input (BIAS CONNECT)
(HP 8753ES only)
Maximum voltage
+30 VDC
Maximum current
(no degradation in RF specs)
±200 mA
Maximum current
±1 A
Connector
BNC (f)
VGA video output (EXT MON)
This connector drives external VGA monitors.
GP-IB
This connector allows communications with compati-
ble devices including external controllers, printers,
plotters, disk drives, and power meters.
Parallel port
This 25-pin female connector is used with parallel
peripherals. It can also be used as a general purpose
I/O port.
RS-232C
This 9-pin male connector is used with serial
peripherals.
DIN keyboard
This mini-DIN connector is used for adding an
IBM PC-AT compatible keyboard.
Test set interconnect
This connector is used to connect an HP 8753ES
Option 011 to the HP 85046A/B or 85047A test set.
HP 8753ES analyzers without Option 011 can use sig-
nal levels on this connector for sequencing or general
purpose I/O applications.
Internal memory
Typical data retention time with 3V, 1.2 Ah battery:
At 25 ˚C
11904 days (32.6 years)
At 40 ˚C
1244 days (3.4 years)
At 70 ˚C
250 days (0.68 year)
Line power
48 Hz to 66 Hz
115V nominal (90V to 132V) or 230V nominal
(198V to 264V).
280 VA max.
1. Fmax is the upper frequency limit of the associated test set.
2. Degrees, specified as deviation from linear phase.