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SWITCHES - SMT
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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
HMC344LH5
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 12 GHz
v00.0805
General Description
Features
Functional Diagram
The HMC344LH5 is a broadband non-re ective GaAs
MESFET SP4T switch in a hermetic SMT leadless
package. Covering DC to 12 GHz, this switch offers
high isolation and low insertion loss. This switch also
includes an on board binary decoder circuit which
reduces the required logic control lines to two. The
switch operates using a negative control voltage
of 0/-5V, and requires a xed bias of -5V. Simple
external level shifting circuitry allows this switch to
be controlled with most TTL/CMOS positive logic
families. The HMC344LH5 allows the use of surface
mount manufacturing techniques and is suitable
for high reliability military, industrial and space
applications.
Broadband Performance: DC - 12 GHz
High Isolation: 42 dB@ 6 GHz
Low Insertion Loss: 1.8 dB@ 6 GHz
Integrated 2:4 TTL Decoder
Hermetic SMT Package, 25 mm2
Screening to MIL-PRF-38535 (Class B or S) Available
Electrical Speci cations, TA = +25° C, With Vee = -5V & 0/-5V Control, 50 Ohm System
Typical Applications
This switch is suitable for DC - 12.0 GHz 50-Ohm
Systems
• Telecom Infrastructure
• Military Radio, Radar & ECM
• Space Systems
• Test Instrumentation
Parameter Frequency Min. Typ. Max. Units
Insertion Loss
DC - 2.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 12.0 GHz
1.5
1.8
2.1
3.0
1.9
2.2
2.5
3.4
dB
dB
dB
dB
Isolation
DC - 2.0 GHz
DC - 4.0 GHz
DC - 6.0 GHz
DC - 8.0 GHz
DC - 12.0 GHz
48
43
37
35
30
53
48
42
40
35
dB
dB
dB
dB
dB
Return Loss “On State” DC - 10.0 GHz
DC - 12.0 GHz
17
12
dB
dB
Return Loss “Off State” DC - 8.0 GHz
DC - 12.0 GHz
16
10
dB
dB
Input Power for 1 dB Compression 0.5 - 12.0 GHz 24 27 dBm
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
0.5 - 4.0 GHz
4.0 - 8.0 GHz
8.0 - 12.0 GHz
50
47
44
dBm
dBm
dBm
Switching Characteristics
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
DC - 12.0 GHz 35
75
ns
ns
SWITCHES - SMT
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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
HMC344LH5
Input Third Order Intercept Point
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 12 GHz
Return Loss 0.1 and 1 dB Input Compression Point
Insertion Loss vs. Temperature Isolation
* Isolation is recorded above insertion loss & measured at output of switch.
v05.0505
Bias Voltage & Current
Control Voltages
State Bias Condition
Low -3V to 0 Vdc @ 40 uA Typical
High -5 to -4.2 Vdc @ 5 uA Typical
Vee Range = -5.0 Vdc ± 10%
Vee
(Vdc)
Iee (Typ.)
(mA)
Iee (Max.)
(mA)
-5.0 3.0 6.0
-4
-3
-2
-1
0
024681012
+25C
+85C
-40C
INSERTION LOSS (dB)
FREQUENCY (GHz)
15
18
21
24
27
30
024681012
1.0dB Compression Point
0.1dB Compression Point
INPUT COMPRESSION (dBm)
FREQUENCY (GHz)
35
40
45
50
55
024681012
RF1
RF2
RF3
RF4
INPUT THIRD ORDER INTERCEPT (dBm)
FREQUENCY (GHz)
-20
-15
-10
-5
0
024681012
RFC
RF1, RF2, RF3, RF4 ON
RF1, RF2, RF3, RF4 OFF
RETURN LOSS (dB)
FREQUENCY (GHz)
-90
-75
-60
-45
-30
-15
0
024681012
RF1
RF2
RF3
RF4
ISOLATION (dB)
FREQUENCY (GHz)
SWITCHES - SMT
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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
Outline Drawing
Control Input Signal Path State
A B RFC to:
High High RF1
Low High RF2
High Low RF3
Low Low RF4
Absolute Maximum Ratings
Bias Voltage Range (Vee) -7.0 Vdc
Control Voltage Range (A & B) Vee -0.5V to +1.0 Vdc
Channel Temperature 150 °C
Thermal Resistance
(Insertion Loss Path) 157 °C/W
Continuous Pdiss (T= 85 °C )
(derate 6.4 mW/°C above 85 °C) 0.42 W
Thermal Resistance
(Terminated Path) 264 °C/W
Continuous Pdiss (T= 85 °C )
(derate 3.8 mW/°C above 85 °C) 0.25 W
Storage Temperature -65 to +150 °C
Operating Temperature -40 to +85 °C
Maximum Input Power +28 dBm (0.5 - 12.0 GHz)
ESD Sensitivity (HBM) Class 1A
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
HMC344LH5
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 12 GHz
v05.0505
NOTES:
1. PACKAGE BODY MATERIAL: CERAMIC & KOVAR
2. LEAD AND GROUND PADDLE PLATING: GOLD 40 - 80 MICROINCHES.
3. DIMENSIONS ARE IN INCHES [MILLIMETERS].
4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE
5. PAD BURR LENGTH 0.15mm MAX.
PAD BURR HEIGHT 0.25mm MAX.
6. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO
PCB RF GROUND.
SWITCHES - SMT
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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
Pin Number Function Description Interface Schematic
1, 3,
7, 9, 11
RF4, RF3, RF2,
RF1, RFC
This pin is DC coupled and matched to 50 Ohm. Blocking
capacitors are required if RF line potential is not equal to 0V.
2, 8, 10, 12 GND Package base must also be connected to PCB RF ground.
4 Vee Supply Voltage -5V ± 10%
5 B See truth table and control voltage table.
6 A See truth table and control voltage table.
Pin Descriptions
HMC344LH5
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 12 GHz
v05.0505
TTL Interface Circuit
SWITCHES - SMT
10
10 - 200
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
techniques. Signal lines at the RF port should have
50 ohm impedance and the package ground leads
and package base should be connected directly to
the ground plane similar to that shown above. The
evaluation circuit board shown above is available
from Hittite Microwave Corporation upon request.
List of Materials for Evaluation PCB 110760 [1]
Item Description
J1 - J5 PCB Mount SMA RF Connector
J6 - J9 DC Pin
C1 10k pF Capacitor, 0603 Pkg.
U1 HMC344LH5 SP4T Switch
PCB [2] 110758 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
HMC344LH5
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 12 GHz
v05.0505
SWITCHES - SMT
10
10 - 201
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:
HMC344LH5
GaAs MMIC SP4T NON-REFLECTIVE
SWITCH, DC - 12 GHz
v05.0505
