SWITCHES - SMT
10
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
HMC347C8
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8 GHz
v01.0404
General Description
Features
Functional Diagram
The HMC347C8 is a broadband high isolation non-
re ective GaAs MESFET SPDT switch in a non-
hermetic surface mount ceramic package. Covering
DC to 8 GHz, the switch features >50 dB isolation
up to 2 GHz and >35 dB isolation up to 8 GHz. The
switch operates using complementary negative
control voltage logic lines of -5/0V and requires no
bias supply. This SPDT is an excellent replacement
for the HMC132C8 SPDT.
Isolation: 50 dB @ 2.5 GHz
36 dB @ 8 GHz
Insertion Loss: 2 dB Typical
Non-Re ective Design
Surface Mount Ceramic Package
Electrical Speci cations, TA = +25° C, With 0/-5V Control, 50 Ohm System
Typical Applications
The HMC347C8 is ideal for:
• Telecom Infrastructure
• Microwave Radio & VSAT
• Military Radios, Radar & ECM
• Test Instrumentation
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
1.7
2.0
2.4
2.0
2.4
2.8
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
49
35
32
54
40
36
dB
dB
dB
Return Loss “On State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
10
7
6
13
10
9
dB
dB
dB
Return Loss RF1, RF2 “Off State”
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
9
6
6
dB
dB
dB
Input Power for 1 dB Compression 0.5 - 8.0 GHz 19 23 dBm
Input Third Order Intercept
(Two-Tone Input Power= +7 dBm Each Tone, 1 MHz Tone Separation) 0.5 - 8.0 GHz 38 43 dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 8.0 GHz 3
6
ns
ns
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SMT
10
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Input Third Order Intercept Point
Return Loss 0.1 and 1 dB Input Compression Point
Insertion Loss Isolation
HMC347C8
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8 GHz
v01.0404
-5
-4
-3
-2
-1
0
012345678
+ 25C
+ 85C
- 40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
30
35
40
45
50
012345678
+25C
+85C
-40C
INPUT IP3 (dBm)
FREQUENCY (GHz)
10
15
20
25
30
012345678
1 dB Compression Point
0.1 dB Compression Point
INPUT P1dB (dBm)
FREQUENCY (GHz)
-20
-15
-10
-5
0
012345678
RFC
RF1, RF2 ON
RF1, RF2 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
-70
-60
-50
-40
-30
-20
-10
0
012345678
RF1
RF2
ISOLATION (dB)
FREQUENCY (GHz)
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SMT
10
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For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Truth Table
Control Voltages
Outline Drawing
Control Input Signal Path State
A B RFC to RF1 RFC to RF2
High Low On Off
Low High Off On
State Bias Condition
Low 0 to -0.2V @ 10 uA Max.
High -5V @ 10 uA Typ. to -7V @ 40 uA Typ. (± 0.5 Vdc)
NOTES:
1. PACKAGE BODY MATERIAL: WHITE ALUMINA 92%
2. LEAD, PACKAGE BOTTOM MATERIAL: COPPER
3. PLATING: ELECTROLYTIC GOLD 100-200 MICROINCHES, OVER
ELECTROLYTIC NICKEL 100-250 MICROINCHES.
4. DIMENSIONS ARE IN INCHES [MILLIMETERS].
5. PACKAGE LENGTH AND WIDTH DIMENSIONS DO NOT INCLUDE LID
SEAL PROTRUSION .005 PER SIDE.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED
TO PCB RF GROUND.
Caution: Do not “Hot Switch” power levels greater than +13
dBm (Vctl = 0/-5 Vdc).
Absolute Maximum Ratings
RF Input Power (Vctl = -5V) +27 dBm
Control Voltage Range (A & B) +0.5V to -7.5 Vdc
Channel Temperature 150 °C
Thermal Resistance
(Insertion Loss Path) 440 °C/W
Thermal Resistance
(Terminated Path) 540 °C/W
Storage Temperature -65 to +150 °C
Operating Temperature -55 to +85 °C
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC347C8
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8 GHz
v01.0404
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SMT
10
10 - 217
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Pin Descriptions
Suggested Driver Circuit
Pin Number Function Description Interface Schematic
1, 4, 7 RFC, RF1, RF2 This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if RF line potential is not equal to 0V.
2, 3, 8 GND Package bottom must also
be connected to PCB RF ground.
5 CTLA See truth table and control voltage table.
6 CTLB See truth table and control voltage table.
HMC347C8
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8 GHz
v01.0404
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SMT
10
10 - 218
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Evaluation PCB
The circuit board used in the nal application should
be generated with proper RF circuit design tech-
niques. Signal lines at the RF port should have 50
ohm impedance and the package ground leads and
package bottom should be connected directly to the
ground plane similar to that shown above. The eval-
uation circuit board shown above is available from
Hittite Microwave Corporation upon request.
List of Materials for Evaluation PCB 107261 [1]
Item Description
J1 - J3 PCB Mount SMA RF Connector
J4 - J6 DC Pin
U1 HMC347C8 SPDT Switch
PCB [2] 102088 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC347C8
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8 GHz
v01.0404
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
SWITCHES - SMT
10
10 - 219
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Notes:
HMC347C8
GaAs MMIC SMT HIGH ISOLATION
SPDT SWITCH, DC - 8 GHz
v01.0404
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
