HMC349MS8G
/
349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4 GHz
Features
High Isolation: 70 dB @ 1 GHz
57 dB @ 2 GHz
Single Positive Control: 0/+5V
+52 dBm Input IP3
Non-Reflective Design
All Off State
Ultra Small MS8G SMT Package: 14.8 mm
2
Included in the HMC-DK005 Designer’s Kit
Typical Applications
The HMC349MS8G / HMC349MS8GE is ideal for:
• Basestation Infrastructure
• MMDS & 3.5 GHz WLL
• CATV/CMTS
• Test Instrumentation
Functional Diagram
General Description
The HMC349MS8G & HMC349MS8GE are high
isolation non-reflective DC to 4 GHz GaAs MESFET
SPDT switches in low cost 8 lead MSOP8G surface
mount packages with exposed ground paddles.
The switch is ideal for cellular/PCS/3G basestation
applications yielding 50 to 60 dB isolation, low
0.8 dB insertion loss and +52 dBm input IP3. Power
handling is excellent up through the 3.5 GHz WLL
band with the switch offering a P1dB compression
point of +31 dBm. On-chip circuitry allows a single
positive voltage control of 0/+5 Volts at very low DC
currents. An enable input (EN) set to logic high will
put the switch in an “all off” state.
10
SWITCHES - SMT
Electrical Specifi cations,
T
A
= +25° C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc, 50 Ohm System
Parameter
Frequency
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
0.5 - 2.0 GHz
0.5 - 3.0 GHz
0.5 - 4.0 GHz
0.25 - 4.0 GHz
0.25 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
DC - 4.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
40
120
ns
ns
27
60
54
45
42
Min.
Typ.
0.8
0.9
1.2
1.8
70
57
50
47
23
18
13
8
20
17
14
31
53
50
49
47
Max.
1.1
1.2
1.5
2.1
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
Insertion Loss
Isolation (RFC to RF1/RF2)
Return Loss (On State)
Return Loss (Off State)
Input Power for 1 dB Compression
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
Switching Speed
10 - 244
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
HMC349MS8G
/
349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4 GHz
Insertion Loss
0
Return Loss
0
-5
RETURN LOSS (dB)
-10
-15
-20
-25
-30
INSERTION LOSS (dB)
-1
RFC
RF1, RF2 ON
RF1, RF2 OFF
-2
+25C
+85C
-40C
-3
-4
-5
0
1
2
3
4
5
FREQUENCY (GHz)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
Note: RFC is refl ective in “all off” state.
10
SWITCHES - SMT
10 - 245
Isolation Between
Ports RFC and RF1 / RF2
0
Isolation Between Ports RF1 and RF2
0
-10
-20
ISOLATION (dB)
ISOLATION (dB)
4
5
RF1
RF2
ALL OFF
-20
-30
-40
-50
-60
-40
-60
-80
0
1
2
3
FREQUENCY (GHz)
-70
0
1
2
3
4
5
FREQUENCY (GHz)
0.1 and 1 dB Input Compression Point
34
INPUT COMPRESSION (dBm)
32
Input Third Order Intercept Point
60
+25C
+85C
-40C
56
30
IP3 (dBm)
0.1 dB Compression Point
1 dB Compression Point
28
26
24
22
20
0
1
2
FREQUENCY (GHz)
3
4
52
48
44
40
0
1
2
FREQUENCY (GHz)
3
4
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
HMC349MS8G
/
349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4 GHz
Absolute Maximum Ratings
RF Input Power (Vctl = 0V/+5V)
(0.25 - 4 GHz)
Supply Voltage Range (Vdd)
Control Voltage Range (Vctl)
Hot Switch Power Level
(Vdd = +5V)
Channel Temperature
Continuous Pdiss (T = 85 °C)
(derate 12 mW/°C above 85 °C)
Thermal Resistance
Storage Temperature
+30 dBm (T = +85 °C)
+7 Vdc
-1V to Vdd +1V
+30 dBm
150 °C
0.75 W
87 °C/W
-65 to +150 °C
-40 to +85 °C
Class 1A
Bias Voltage & Current
Vdd Range = +5.0 Vdc ± 10%
Vdd
(Vdc)
+5.0
Idd (Typ.)
(mA)
2.3
Idd (Max.)
(mA)
5.0
TTL/CMOS Control Voltages
State
Low
High
Bias Condition
0 to +0.8 Vdc @ <1 μA Typical
+2.0 to +5.0 Vdc @ 30 μA Typical
10
SWITCHES - SMT
Operating Temperature
ESD Sensitivity (HBM)
Truth Table
Control Input
Signal Path State
EN
Low
Low
High
High
RFC - RF1
OFF
ON
OFF
OFF
RFC - RF2
ON
OFF
OFF
OFF
Vctl
Low
High
Low
Note: DC blocking capacitors are required at ports RFC,
RF1 and RF2. Their value will determine the lowest trans-
mission frequency.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
High
10 - 246
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
HMC349MS8G
/
349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4 GHz
Outline Drawing
10
NOTES:
1. LEADFRAME MATERIAL: COPPER ALLOY
2. DIMENSIONS ARE IN INCHES [MILLIMETERS]
3. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.15mm PER SIDE.
4. DIMENSION DOES NOT INCLUDE MOLDFLASH OF 0.25mm PER SIDE.
5. ALL GROUND LEADS AND GROUND PADDLE MUST BE SOLDERED TO
PCB RF GROUND.
Package Information
Part Number
HMC349MS8G
HMC349MS8GE
Package Body Material
Low Stress Injection Molded Plastic
RoHS-compliant Low Stress Injection Molded Plastic
Lead Finish
Sn/Pb Solder
100% matte Sn
MSL Rating
MSL1
MSL1
[1]
Package Marking
[3]
H349
XXXX
H349
XXXX
[2]
[1] Max peak reflow temperature of 235 °C
[2] Max peak reflow temperature of 260 °C
[3] 4-Digit lot number XXXX
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
10 - 247
SWITCHES - SMT
HMC349MS8G
/
349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4 GHz
Pin Descriptions
Pin Number
1
Function
Vdd
Description
Supply Voltage.
Interface Schematic
2
Vctl
Control input. See truth and control voltage tables.
10
SWITCHES - SMT
3, 5, 8
RFC, RF1, RF2
These pins are DC coupled and matched to
50 Ohms. Blocking capacitors are required.
4
EN
Enable. See truth and control voltage tables.
6, 7
GND
Package bottom must also be
connected to PCB RF ground.
10 - 248
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
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