Features and description
• High isolation
• Exceptional reliability, long life
(5 million cycles)
• Excellent repeatability (± .03 dB)
• Unterminated
The Agilent Technologies 8765 family
of switches is designed for microwave
instrumentation and ATE systems
and features excellent electrical and
mechanical performance.
The 8765A and 8765B are equipped
with SMA connectors and operate
from dc to 4 and 20 GHz respectively.
The higher performance 8765C and
D switches operate from dc to 26.5
GHz with 3.5 mm connectors, and
40 GHz with 2.4 mm connectors.
For applications that call for 2.92 mm
connectors, Option 292 can be ordered
with the 8765D. All the switches are
available with voltage options covering any drive voltage between 4.5 volts
and 32 volts dc. Where performance
data is required, Option UK6 includes
a print out of test results.
This family of switches was designed
from the ground up for maximum
dependability and performance. The
switches are all designed to operate
within their specifications for more
than 10,000,000 cycles. In precision
measurement and monitoring applications where insertion loss repeatability
is critical, all the 8765s will operate
in excess of 5,000,000 cycles with
better than 0.03 dB of insertion loss
repeatability at 25 °C.
Driving the Agilent 8765A/B/C/D
The 8765 switch family is available
with two methods for connecting to
the dc control circuitry. The standard
switch comes with a ribbon cable terminated with a single in-line five
position male connector with one pin
removed. The user has the option of
ordering solder terminals (Option 3xx)
where they are required (Figure 3).
The 8765 Switches have both sides of
the switching solenoids available to
the user. Typically, as is the case with
the 8762 switches, the switching solenoids will have a common positive
terminal or a common ground. By
making both sides of each coil available, users can select the dc drive
method that best suits their needs.
The suggested methods are:
1. Common negative drive
2. Common positive drive
3. Polarity reversal drive
Regardless of which method is chosen
for switching, two conditions will
always apply:
• the switch is positive latching, and
• since there are no dc current
interrupts, the supply may be continuous or may be switched off
after the 15 ms switching time.
Agilent 8765A/B/C/D
Microwave SPDT Switches
DC to 4, 20, 26.5 and 40 GHz
Product Overview
Common negative drive
With the common negative drive
method, the two outside pins on the
ribbon cable or the two outside terminals on the solder block are connected
together to form a common negative
or ground. Switching is then accomplished by applying the appropriate
positive voltage to either of the inner
pins or terminals (figure la).
Common positive drive
To drive the switch with a common
positive arrangement, the two inner
pins or terminals are tied together
and then to a positive voltage. To
effect switching, one of the two outer
pins or terminals is brought to
ground (figure la).
Polarity reversal drive
To drive the switch using a polarity
reversal scheme, the two inner pins
or terminals are tied together. The
switch will complete a circuit
between the two RF contacts on the
side of the switch to which the negative or ground potential has been connected (figure 1a).
Interfacing the Agilent 8765
The 8765 family of switches is a
vailable with two dc control connection options. The standard switch is
connected to the dc drive circuitry
via a ribbon cable. Option 3xx allows
soldering wires between the control
circuitry and the switch.
Ribbon cable
The kapton flex circuit ribbon cable
on the standard switch is terminated
to a single in-line male polarized connector with four 0.64 mm (0.025 in.)
square pin posts on 2.54 mm (0.100 in.)
centers. Position number 2 has been
removed to facilitate polarization of
the plug and receptacle (figure 1a).
To assist you in connecting your drive
circuit to the switch's ribbon cable
connector, a six foot long four wire
cable is included with every standard
switch. The cable is terminated on
one end with a 0.64 mm (0.025 in.)
square pin receptacle. The five position receptacle is polarized to mate
with the switch’s ribbon cable connector. The opposite end of the cable
is left unterminated for connecting to
your control circuits.
Figure 1a. DC control circuit configurations
2
Figure 1b. Suggested receptacle dimensions
3
The six foot cable provides a quick
and convenient way of connecting the
switch to your control circuits for
evaluation and low volume production. For high volume production a
more convenient or more permanent
connection may be suggested.
Soldering the ribbon cable connector
into a circuit board provides a reliable and rugged connection. Mating
the ribbon cable connector to a PC
board connector provides a quick to
install and remove connection. The
suggestions below are intended to
provide minimum connection requirements. These suggestions are not
endorsements or recommendations of
one method over another. It is the
responsibility of the user to determine the suitability for use of any
interconnect method for a particular
application.
PC board connectors
PC board connectors are available in
surface mount and solder pin styles
and in horizontal and vertical orientations. This type of connector makes
connection to and disconnection from
the dc circuit quick and convenient.
The connectors should be a minimum
of five positions wide, and depending
upon the number of switches to be
connected can be any multiple of five
positions (ie. 10, 15, 25, etc.). Single
row or double row configurations can
also be used to increase connector
density. The contacts should accept
0.64 mm (0.025 in.) square pins set
on 2.54 mm (0.100 in.) centers and up
to 5.84 mm (0.230 in.) long. Use of a
polarizing plug in the second position
of each switch connection is recommended to help ensure proper orientation.
The PC board hole pattern should
have the center lines of the through
holes along a single axis separated
by 2.54 mm ± 0.08mm (0.100 in.
± 0.003 in.). The suggested hole
diameter for a 0.64 mm (0.025 in.)
pin is 1.00 mm ± 0.076 mm (0.040 in.
± 0.003 in.).
Figure lb shows a suggested receptacle dimension.
Soldered connections
The ends of the switch ribbon cable
can also be soldered directly to a PC
board. This method provides a semipermanent connection that can withstand higher vibration environments
than can the PC board connectors.
Omission of position 2 in the PC hole
pattern is suggested to help prevent
soldering the connector in the wrong
orientation.
Optional ribbon connector
extension cables
Optional extension cables for the
switch ribbon cable connector are
available as Option 108 for an 8 inch
extension and Option 116 for a 16 inch
extension. The cables have male and
female ends configured as indicated
in figure la “Ribbon Cable Connector”
and figure 1b “Minimum Receptacle
Requirements.” These ribbon cables
can be connected to the dc control
circuitry with the same methods suggested above.
Optional solder terminals
Solder terminals in place of the ribbon cable for connecting to the dc
control circuitry are available as
Option 3xx. The four solder terminals
provide access to both sides of each
of the solenoids.
Easy GPIB programmability
The Agilent 8765 switch family
can be easily used in ATE systems
with GPIB control using the 11713A
Attenuator/Switch Driver. The 11713A
provides manual and programmable
control of up to 10 24 V switches or
solenoids. Connecting between the
11713A and four 8765A/B/C/D
Option 024 switches is made easy
via the 11761A cable/adapter. The
11713A provides 24 Vdc and 0.65A
continuously or 1.3A peak (up to
1 second). The non-interrupting 8765
Option 024 draws 120 mA continuously, allowing the 11713A to drive
up to five of these switches at a time.
Five more dc circuit interrupting
8762/3/4s or up to five sections of
step attenuators or multiport switches can be driven simultaneously.
4
General operating data
Maximum power rating:
2 Watt average for switching with power
applied
100 Watt peak, non-switching
Life: 10,000,000 cycles
Switching speed: 15 ms maximum
Specifications
Model: 8765A 8765B 8765C 8765D
Frequency range: dc to 4 GHz dc to 20 GHz dc to 26.5 GHz dc to 40 GHz
Insertion loss (dB): 0.2 + 0.025f 0.2 + 0.025f 0.25 + 0.027f 0.2 + 0.023f (dc to 26.5 GHz)
(f is frequency in GHz) 0.75 + 0.023f (26.5 to 40 GHz)
*Typical insertion loss: 0.2 @ 4 GHz 0.2 @ 4 GHz 0.2 @ 4 GHz 0.2 @ 4 GHz
0.5 @ 20 GHz 0.5 @ 20 GHz 0.5 @ 20 GHz
0.7 @ 26.5 GHz 0.7 @ 26.5 GHz
1.0 @ 40 GHz
Isolation (dB): 110-2.25f 110-2.25f 110-2.25f 110-2.25f (dc to 26.5 GHz)
(f is frequency in GHz) 50 dB (26.5 to 40 GHz)
*Typical isolation: 120 @ 4 GHz 120 @ 4 GHz 120 @ 4 GHz 120 @ 4 GHz
90 @ 20 GHz 90 @ 20 GHz 90 @ 20 GHz
60 @ 26.5 GHz 60 @ 26.5 GHz
50 @ 40 GHz
SWR: <1.2 dc to 4 GHz <1.2 dc to 4 GHz <1.25 dc to 4 GHz <1.10 dc to 4 GHz
<1.35 4 to 12.4 GHz <1.45 4 to 18 GHz <1.30 4 to 26.5 GHz
<1.45 12.4 to 18 GHz <1.7 18 to 26.5 GHz <1.50 26.5 to 40 GHz
<1.7 18 to 20 GHz
*Typical SWR: <1.15 dc to 4 GHz <1.15 dc to 4 GHz <1.15 dc to 4 GHz <1.05 dc to 4 GHz
<1.3 4 to 12.4 GHz <1.3 4 to 12.4 GHz <1.24 to 26.5 GHz
<1.4 12.4 to 20 GHz <1.4 12.4 to 26.5 GHz <1.3 26.5 to 40 GHz
Connectors: standard SMA (f) SMA (f) 3.5 mm (f) 2.4 mm (f) (Option 241)
Options 2.92 mm (f) (Option 292)
Repeatability:
(Up to 5,000,000 Cycles
measured at 25 °C) <0.03 dB <0.03 dB <0.03 dB <0.03 dB
*
Specifications describe the instrument's warranted performance. Supplemental and typical characteristics are intended to provide information
Solenoid electrical specifications and switching voltage options
Option Voltage Current Impedance
005, 305 5 (4.5 to 7) Vdc 385 mA @ 5 Vdc 13 Ω, 8 mH
010, 310 10 (7 to 12 ) Vdc 300 mA @ 10 Vdc 33 Ω, 25 mH
015, 315 15 (12 to 20) Vdc 200 mA @ 15 Vdc 75 Ω, 55 mH
024, 324 24 (20 to 30) Vdc 120 mA @ 24 Vdc 200 Ω, 135 mH
5
Environmental
Operating temperature: –25 °C to 75 °C
Storage temperature: –55 °C to 85 °C
Temperature cycling: –55 °C to 85 °C, 10 cycles
per MIL-STD 202F, Method 107D,
Condition A (Modified)
Vibration:
Operating: 7g’s: 5 to 2000 Hz @ 0.25” p-p
Survival: 20 g’s; 20 to 2000 Hz @ 0.06” p-p,
4 min/cycle, 4 cycles/axis
Random: survival: 2.41 g(rms) 10 min/axis
Shock:
Half sine: 500 g’s @ 0.5ms, 3 drops/
direction, 18 total
Operating: 50 g’s @ 6 ms, 6 directions
Moisture resistance: 65 °C, 95% RH, 10 days per
MIL-STD-202F, Method 106E
Altitude storage: 50,000 ft (15,240 meters) per
MIL-STD-202F, Method 105C, Condition B
RFI: Per MIL-STD-461C, RE02, Part 4
Electrostatic discharge: 25 kV maximum
Abuse: 2W, CW, 1 kw peak pulse (10 uS),
2 minute duration.
Operating life: To meet 0.03 dB IL repeatability:
5 million cycles. To meet specifications:
10 million cycles.
Figure 2. Standard unit part dimensions in
millimeters and (inches)
Figure 3. Option 3xx with solder terminals
part dimensions in millimeters and (inches)
This drawing is not to scale.
Ordering information
All switches must be ordered with a
voltage option to be valid. Standard
switches are equipped with ribbon
cables terminated to a single in-line
connector (see information inside
data sheet for application information). All standard switches come
with a six foot cable with mating connector on one end to facilitate connection to the user’s control circuitry.
Connectors
The Agilent 8765D may be ordered
with optional 2.92 mm connectors
in place of the 2.4 mm connectors.
2.92 mm connectors can mate with
3.5 mm connectors.
Calibration data
Option UK6 includes a print out of
the SWR (reflection) and insertion
loss data for the switch as measured
on the automatic network analyzer.
The network analyzer’s measurement
uncertainties have been minimized
and all measurements are directly
traceable to NIST standards (not
available for Option 292).
Accessories
The Agilent 11761A Cable/Adapter is
available for directly connecting the
ribbon cables of up to four 8765
switches to the 11713A Attenuator/
Switch Driver. This cable is 5 feet long.
The Agilent 11713A Attenuator/Switch
driver is designed to provide manual
and GPIB control of switches and
atten-uators. The 11713A can drive
up to five 8765 series switches and
five self-interrupting switches, such
as the 8762, 3 or 4, or step attenuator
sections. Option 024 switches (24V)
must be ordered for use with the
11713A.
Agilent 8765A/B/C/D options and
accessories
Microwave SPDT switches
8765A DC to 4 GHz
8765B DC to 20 GHz
8765C DC to 26.5 GHz
8765D DC to 40 GHz
Options
To add options to a product, use the following scheme:
Model: 8765x (x = A, B, C, D)
Model options: 8765x-opt #1
8765x-opt #2
Supply voltage (must choose one)
8765x-005 5V dc supply voltage with 3 inch
ribbon cable terminated with a
single in-line
8765x-010 10V dc supply voltage with 3 inch
ribbon cable terminated with a
single in-line
8765x-015 15V dc supply voltage with 3 inch
ribbon cable terminated with a
single in-line
8765x-024 24V dc supply voltage with 3 inch
ribbon cable terminated with a
single in-line
8765x-305 5V dc supply voltage with solder
terminals
8765x-310 10V dc supply voltage with solder
terminals
8765x-315 15V dc supply voltage with solder
terminals
8765x-324 24V dc supply voltage with solder
terminals
Calibration documentation
8765x-UK6 Commercial calibration certificate
with test data
Accessories
8765x-108 8 inch (20.3 cm) dc cable extension
8765x-116 16 inch (40.6 cm) dc cable extension
RF connectors
8765D-241 2.4 mm female
8765D-292 2.92 mm female
www.agilent.com
Agilent Technologies’ Test and Measurement Support,
Services, and Assistance
Agilent Technologies aims to maximize the value you
receive, while minimizing your risk and problems. We
strive to ensure that you get the test and measurement
capabilities you paid for and obtain the support you need.
Our extensive support resources and services can help
you choose the right Agilent products for your applications and apply them successfully. Every instrument and
system we sell has a global warranty. Two concepts
underlie Agilent’s overall support policy: “Our Promise”
and “Your Advantage.”
Our Promise
Our Promise means your Agilent test and measurement
equipment will meet its advertised performance
and functionality. When you are choosing new equipment, we will help you with product information, including realistic performance specifications and practical
recommendations from experienced test engineers.
When you receive your new Agilent equipment, we can
help verify that it works properly and help with initial
product operation.
Your Advantage
Your Advantage means that Agilent offers a wide range
of additional expert test and measurement services,
which you can purchase according to your unique technical and business needs. Solve problems efficiently and
gain a competitive edge by contracting with us for calibration, extra-cost upgrades, out-of-warranty repairs,
and onsite education and training, as well as design,
system integration, project management, and other professional engineering services. Experienced Agilent
engineers and technicians worldwide can help you maximize your productivity, optimize the return on investment
of your Agilent instruments and systems, and obtain
dependable measurement accuracy for the life of those
products.
www.agilent.com/find/open
Agilent Open simplifies the process of connecting and
programming test systems to help engineers design,
validate and manufacture electronic products. Agilent
offers open connectivity for a broad range of systemready instruments, open industry software, PC-standard
I/O and global support, which are combined to more
easily integrate test system development.
For more information on Agilent Technologies’ products,
applications or services, please contact your local
Agilent office. The complete list is available at:
www.agilent.com/find/contactus
www.agilent.com/find/emailupdates
Get the latest information on the
products and applications you select.
Product specifications and descriptions in this document
subject to change without notice.
© Agilent Technologies, Inc. 1995, 2000, 2006
Printed in U.S.A. August 1, 2006
5952-2231E
Agilent
Open
Loading...