Agilent 83751A/B and 83752A/B
Synthesized Sweepers
2 to 20 GHz, 10 MHz to 20 GHz
Data Sheet
2
3
Specifications
Specifications describe warranted instrument performance over the 0 to 55 °C temperature range unless otherwise noted. Specifications apply after the peak function has been performed. Supplemental characteristics
(indicated by italics) are intended to provide information useful in applying the instrument, but are not warranted parameters.
Frequency
Range
83751A/B: 2 GHz to 20 GHz
83752A/B: 10 MHz to 20 GHz
Timebase stability
Standard 10 MHz time base: ±10 ppm
High stability time base (Option IE5):
accuracy = calibration ± aging rate
± temperature effects ± line voltage effects
Aging rate: 5 x 10
-
10
/day, 1 x 10
-
7
/year
With temperature: 1 x 10
-
10
/°C
With line voltage: 5 x 10
-
10
for 10% change
CW mode
Resolution: 1 Hz
Accuracy: same as time base
Switching time: 70 ms max
Stepped sweep mode
Resolution: settable 1 Hz, display 1 kHz
Accuracy: same as timebase
Minimum step size: same as resolution
Number of points: 2 to 1601
Switching time/point1: 7 ms + 8 ms/GHz step
Dwell time/point: 1 ms to 1 s
Ramp (analog, phase locked)
sweep mode
Resolution: 1 kHz
Accuracy (25 ±5 °C):
For 100 ms sweeps the greater of: ±.01% of span ±time
base or ±75 kHz ±time base
At other sweep speeds: [±.001% of span]/[sweep time
(s)] ±time base
Sweep time: 10 ms to 100 s; 400 MHz/ms max
Markers
10 independent continuously variable markers
Display modes: z-axis intensity
or RF amplitude pulse
Sweep functions
Start/stop, center frequency/span, marker, ramp,
stepped, manual, alternate and power sweep
Marker sweep: sweeps between markers one and two
Alternate sweep: alternates successive sweeps between
current front panel setting and stored setup
RF output
2
Maximum leveled power
3
(25 ±5 °C)
83751A, 83752A: +10 dBm
83751B, 83752B:
<2 GHz +16 dBm
>2 GHz +17 dBm
With option 1E1 (step attenuator): reduce by 1 dB
Minimum settable power
83751A, 83752A: -15 dBm
With option 1E1: -85 dBm
83751B, 83752B: -10 dBm
With option 1E1: -80 dBm
1
Up to 50 ms switching times can occur when crossing the 2 GHz band
switch point.
2
With type N connector (option 1ED), performance is typical above 18 GHZ
3
Power typically degrades <2.5 db over 0 to 55 °C
4
Resolution
Settable: 0.01 dB
Display: 0.1 dB
Accuracy and flatness
4
Power level Accuracy (25 ±5 °C) Flatness
5
83751A, 83752A
>-10 dBm ±1.0 dB ±0.7 dB
>-80 dBm ±1.5 dB ±1.2 dB
Power sweep
±25 dB/sweep
Usable from minimum to maximum leveled power,
within any one attenuator setting
Power slope
0 to ±2 dB/GHz, up to power sweep limit
External leveling
External detector:
Range: -0.2 mV to -0.5 V
Bandwidth (sweep speed and modulation mode
dependent): 10 or 100 kHz, nominal
External power meter: 1 Hz bandwidth, nominal
External mm-wave module: 83550 series compatible
with option 1EE
User flatness (level) correction
Number of points: 2 to 801 points/table
Number of tables: up to 9
Entry modes6: power meter, GPIB
Source match < 1.7:1 SWR, (internally leveled)
Spectral purity
Harmonics (at max leveled power)
83751A, 83752A:
10 MHz to 1.5 GHz: -30 dBc
1.5 to 20 GHz: -45 dBc
83751B, 83752B: -20 dBc
Subharmonics
None
Non-harmonic spurious
4,7
-50 dBc
Single-sideband phase noise
Residual FM
(0.05 to 15 kHz bandwidth)
8
1 kHz RMS in CW mode
Modulation
Pulse
On/off ratio: 60 dB
Rise/fall times:
0.5 to 2 GHz: 15 ns
2 to 20 GHz: 100 ns rise, 50 ns fall
Minimum leveled width9: 2
µ
s
Internal pulse generator:
Width range: 1 µs to 65 µs
Period range: 2
µ
s to 65 µs
Resolution: 1
µ
s
Internal square wave:
1.0 kHz and 27.8 kHz (scalar mode)
AM
Sensitivity: 1 dB/V
Bandwidth (3 dB): >100 kHz, usable to 1 MHz
Depth for 8375XA: 20 dB; (+10 dBm to -10 dBm)
Depth for 8375XB: 22 dB; (+17 dBm to –5 dBm)
Input impedance: 3.5 kohms
FM
AC/Locked mode:
Rates: 50 kHz to 10 MHz
Maximum deviation: same as unlocked mode up to
25 x rate
DC/Unlocked mode:
Rates: DC to 10 MHz
Maximum deviation:
DC to 100 Hz rates: ± 75 MHz
100 Hz to 1 MHz rates: ±7 MHz
1 MHz to 2 MHz rates: ±5 MHz
2 MHz to 10 MHz rates: ±1 MHz
Sensitivity: -6 or -20 MHz/V
Input impedance: 1 kohm
7
Specifications apply for frequencies >500 kHz from carrier, and at
levels <+5 dBm below 2 GHz
8
Residual FM is typically <10 kHz in unlocked FM mode
9
For frequencies >500 MHz in CW mode, or >2 GHz in swept mode
4
Specifications apply for coupled attenuator mode and ALC level
>-10 dBm (83751A/83752A), >-5 dBm (83751B/83752B)
5
Below 50 MHz, flatness is specified over 25 ±5 °C range
6
Compatible with Agilent 437B, 438A, and 70100 power meters
83751B, 83752
>-75 dBm ±1.5 dB ±1.3 dB
5
General
Compatibility
83751/83752 sweepers are compatible with
8757A/C/D/E scalar analyzers, and 8970B noise figure
meters.
Programming
83751/83752 sweepers are fully compatible with the
Standard Commands for Programmable Instruments
(SCPI) language. SCPI complies with IEEE 488.2-1987.
Agilent 8350 mnemonics have also been implemented
to provide compatibility with ATE systems that include
an 8350B sweeper.
Two-tone (master/slave)
measurements
Two 83751/83752 sweepers can synchronously track
each other over swept or stepped frequencies at any
fixed or swept frequency offset. To implement, the 10
MHz reference oscillators and sweep interface connectors need to be attached.
Environmental
Operating temperature range: 0 to 55 °C
EMC: Conducted and radiated interference comply with:
EN55011 class A/CISPR-11 Class A
EN50082-1-1991
IEC 801-2/1991 4 kV CD, 8 kV AD
IEC 801-3/1984 3 V/m (26-500 MHz)
IEC 801-4/1988 500 V
Warm-up time
Operation: Requires 30 minutes warm-up time from
cold start at 0 to 55 °C. Internal temperature equilibrium reached after 2 hour warm-up at stable ambient
temperatures.
Frequency reference (option 1E5 only): Reference time
base is kept at operating temperature with the instrument connected to AC power. Instruments disconnected from AC power for more than 24 hours require 30
days to achieve time base aging specification.
Instruments disconnected from AC power less than 24
hours require 24 hours to achieve time base aging specification.
Power requirements
90-132 VAC (50-60 or 400 Hz), or 198-264 VAC
(50-60 Hz); 400 VA maximum. Optimum voltage range
automatically selected.
Dimensions
133H x 425W x 483D mm (5.25 x 16.75 x 19 inches);
excluding front and rear panel protrusions
Weight
Net: 16 kg (35 lb)
Shipping: 23 kg (49 lb)
Inputs and outputs
RF output
Nominal output impedance 50 ohms. (Precision 3.5 mm
male connector on front panel; optional type N or rear
panel connectors are available).
External ALC input
Used for external leveling with negative detector or
power meter. Nominal input impedance 100 kohms,
damage level ±15 volts. (BNC female, front panel)
Sweep output
Supplies a voltage proportional to the sweep ranging
from 0 volts at start of sweep to +10 volts at end of
sweep, regardless of sweep width. Nominal output
impedance 100 ohms. Typical accuracy: ±0.05%, ±5 mV
into high impedance load. When used with 8757D
scalar analyzer in ramp-sweep mode, the rear-panel
output is a 0 to 10 volt pulse similar to trigger output.
(BNC female, front and rear panel)
Trigger output
Outputs a 1 µs wide negative-going TTL pulse at 1601
points evenly spaced across an analog sweep, or at
each point in step sweep mode. When used with 8757D
scalar analyzers, the number of pulses per sweep (in
analog sweep mode) is determined by the number of
8757 trace points. (BNC female, rear panel)
Trigger input
Activated on TTL rising edge. Used to externally initiate an analog sweep or to advance to the next point in
step sweep mode. Damage level +10, -4 volts.
(BNCfemale, rear panel)
Pulse input/output
TTL low turns RF off. When using internal pulse generator, the modulating signal is available at this connector. Nominal input 1 kohm pull-up to +5 volts. Damage
level +10, -5 volts. (BNC female, rear panel)
6
AM input
Nominal input impedance 3.5 kohms. See modulation
specifications. Damage level ±15 volts. (BNC female,
rear panel)
FM input
Nominal input impedance 1 kohm. See modulation
specifications. Damage level ±15 volts. (BNC female,
rear panel)
10 MHz reference output
Nominal signal level 0 dBm, and output impedance 50
ohms. Accuracy determined by time base used. (BNC
female, rear panel)
10 MHz reference input
Accepts a -5 to 10 dBm signal from an external time
base reference which is within ±10 ppm of 10 MHz or
any sub-multiple down to 1 MHz. Nominal input impedance 50 ohms. (BNC female, rear panel)
Stop-sweep in/out
Sweep will stop when grounded externally. TTL high
while sweeping, TTL low when source stops sweeping.
Damage level +10, -4 volts. (BNC female, rear panel)
Z-axis blanking
Supplies positive rectangular pulse (approximately +5
volts into 2 kohms) during the retrace and band switch
points of the RF output. Also supplies a negative pulse
(-5 volts) when the RF is at a marker frequency (BNC
female, rear panel).
Volts/GHz output
Supplies a voltage proportional to output frequency,
which can be configured to any desired sensitivity and
offset within ±12 volts. Default setting is 0.5 volts/GHz.
Minimum load impedance 2 kohms. Typical accuracy
±0.1% ±10 mV. (BNC female, rear panel)
Source module interface
Provides bias, flatness correction, and leveling connections to the 83550 series mm-wave source modules.
(Option 1EE; rear panel connector)
Auxiliary interface
Provides special control signals. (25-pin D subminiature receptacle, rear panel)
Interface bus (GPIB)
GPIB operates in accordance to IEEE-488.1-1987 and
IEEE-488.2-1987 interface standards. Rear panel
switch allows setting of the default GPIB address and
programming language, which can be modified from
the front panel.
7
Models Frequency range
83751A 2 to 20 GHz
83751B 2 to 20 GHz (high power)
83752A 10 MHz to 20 GHz
83752B 10 MHz to 20 GHz (high power)
To add options to a model, use the following ordering scheme:
Example
Model # 83752B
Model #-option # 83752B-1E1
Model #-option # 83752B-1E4
Options
Model #–1E1 Step attenuator
Model #–1E4 Rear panel RF output
Model #–1E5 High stability time base
Model #–1EE mm-wave module source interface
Inputs/Outputs
Model #–1ED Type-N RF output connector
Model #–1EF 3.5mm RF output connector
Documentation
Model #-UK6 Commercial calibration certificate
with test data
Model #-0B1 Manual set
Model #-AB0 Chinese localization - Taiwan
Model #-AB1 Korean localization
Model #-AB2 Chinese localization - China
Model #-ABD German localization
Model #-ABF French localization
Model #-ABJ Japanese localization
Model #-0B0 Delete manuals
Accessories
Model #–1CH Front handle kit
Model #–1CM Rack mount flange kit
Model #–1CP Rack mount flange kit with handles
Model #–1CR Rack slide kit
Warranty and Service
Standard warranty is 12 months.
For warranty and service of 5 years, specify 60 months (quantity =
60)
R51B Return to Agilent warranty and service plan (months)
Calibration
For 3 years, specify 36 months of the appropriate calibration plan.
For 5 years, specify 60 months.
R-50C-001 Standard calibration plan (months)
R-50C-002 Standards compliant calibration plan
(months)
Ordering Information
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Product specifications and descriptions in this document
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© Agilent Technologies, Inc. 2002
Printed in USA, March 20, 2002
5091-5908E
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