HITTITE HMC349MS8G

HMC349MS8G / 349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Typical Applications
Features
The HMC349MS8G / HMC349MS8GE is ideal for:
• Basestation Infrastructure
High Isolation: 70 dB @ 1 GHz
57 dB @ 2 GHz
• MMDS & 3.5 GHz WLL
Single Positive Control: 0/+5V
• CATV/CMTS
+52 dBm Input IP3
• Test Instrumentation
Non-Reflective Design
All Off State
Ultra Small MS8G SMT Package: 14.8 mm2
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.
SWITCHES - SMT
9
Included in the HMC-DK005 Designer’s Kit
Electrical Specifications, TA = +25° C, Vctl = 0/+5 Vdc, Vdd = +5 Vdc, 50 Ohm System
Parameter
Insertion Loss
Isolation (RFC to RF1/RF2)
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
Min.
60
54
45
42
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
Return Loss (On State)
Return Loss (Off State)
Input Power for 1 dB Compression
0.25 - 4.0 GHz
Input Third Order Intercept
(Two-Tone Input Power = +7 dBm Each Tone)
0.25 - 1.0 GHz
1.0 - 2.0 GHz
2.0 - 3.0 GHz
3.0 - 4.0 GHz
Switching Speed
DC - 4.0 GHz
tRISE, tFALL (10/90% RF)
tON, tOFF (50% CTL to 10/90% RF)
9 - 238
Frequency
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 4.0 GHz
27
Typ.
Max.
Units
0.8
0.9
1.2
1.8
1.1
1.2
1.5
2.1
dB
dB
dB
dB
70
57
50
47
dB
dB
dB
dB
23
18
13
8
20
17
14
dB
dB
dB
dB
dB
dB
dB
31
dBm
53
50
49
47
dBm
dBm
dBm
dBm
40
120
ns
ns
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 - 4.0 GHz
Insertion Loss
Return Loss
0
-5
-1
RETURN LOSS (dB)
-2
-3
+25C
+85C
-40C
-4
RFC
RF1, RF2 ON
RF1, RF2 OFF
-10
-15
-20
-25
-5
-30
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0
0.5
1
1.5
FREQUENCY (GHz)
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
Note: RFC is reflective in “all off” state.
Isolation Between
Ports RFC and RF1 / RF2
Isolation Between Ports RF1 and RF2
0
0
-10
ISOLATION (dB)
ISOLATION (dB)
-10
RF1
RF2
ALL OFF
-20
-30
-40
-50
-60
-20
-30
-40
-50
-60
-70
-80
-70
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
0
5
0.5
1
1.5
FREQUENCY (GHz)
2
2.5
3
3.5
4
4.5
5
FREQUENCY (GHz)
0.1 and 1 dB Input Compression Point
Input Third Order Intercept Point
34
60
58
32
+25C
+85C
-40C
56
30
54
IIP3 (dBm)
INPUT COMPRESSION (dBm)
9
SWITCHES - SMT
INSERTION LOSS (dB)
0
28
26
0.1 dB Compression Point
1 dB Compression Point
24
52
50
48
46
44
22
42
20
40
0
1
2
FREQUENCY (GHz)
3
4
0
1
2
3
4
FREQUENCY (GHz)
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
9 - 239
HMC349MS8G / 349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Absolute Maximum Ratings
SWITCHES - SMT
9
9 - 240
RF Input Power (Vctl = 0V/+5V)
(0.25 - 4 GHz)
+30 dBm (T = +85 °C)
Supply Voltage Range (Vdd)
+7 Vdc
Control Voltage Range (Vctl)
-1V to Vdd +1V
Hot Switch Power Level
(Vdd = +5V)
+30 dBm
Channel Temperature
150 °C
Continuous Pdiss (T = 85 °C)
(derate 12 mW/°C above 85 °C)
0.75 W
Thermal Resistance
87 °C/W
Storage Temperature
-65 to +150 °C
Operating Temperature
-40 to +85 °C
ESD Sensitivity (HBM)
Class 1A
Bias Voltage & Current
Vdd Range = +5.0 Vdc ± 10%
Vdd
(Vdc)
Idd (Typ.)
(mA)
Idd (Max.)
(mA)
+5.0
2.3
5.0
TTL/CMOS Control Voltages
State
Bias Condition
Low
0 to +0.8 Vdc @ <1 μA Typical
High
+2.0 to +5.0 Vdc @ 30 μA Typical
Truth Table
Control Input
Note: DC blocking capacitors are required at ports RFC,
RF1 and RF2. Their value will determine the lowest transmission frequency.
ELECTROSTATIC SENSITIVE DEVICE
OBSERVE HANDLING PRECAUTIONS
Signal Path State
Vctl
EN
RFC - RF1
Low
Low
OFF
ON
High
Low
ON
OFF
Low
High
OFF
OFF
High
High
OFF
OFF
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
RFC - RF2
HMC349MS8G / 349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Outline Drawing
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
Package Body Material
Lead Finish
MSL Rating
HMC349MS8G
Low Stress Injection Molded Plastic
Sn/Pb Solder
MSL1
HMC349MS8GE
RoHS-compliant Low Stress Injection Molded Plastic
100% matte Sn
MSL1
SWITCHES - SMT
9
Package Marking [3]
[1]
H349
XXXX
[2]
H349
XXXX
[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
9 - 241
HMC349MS8G / 349MS8GE
v02.0607
HIGH ISOLATION SPDT
NON-REFLECTIVE SWITCH, DC - 4.0 GHz
Pin Descriptions
Pin Number
Function
Description
1
Vdd
Supply Voltage.
2
Vctl
Control input. See truth and control voltage tables.
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.
Interface Schematic
SWITCHES - SMT
9
9 - 242
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 - 4.0 GHz
Evaluation PCB
SWITCHES - SMT
9
List of Materials for Evaluation PCB 107662 [1]
Item
Description
J1 - J3
PCB Mount SMA RF Connector
J4 - J8
DC Pin
C1 - C3
100 pF Capacitor, 0402 Pkg.
U1
HMC349MS8G / HMC349MS8GE
SPDT Switch
PCB [2]
107660 Evaluation PCB
[1] Reference this number when ordering complete evaluation PCB
[2] Circuit Board Material: Rogers 4350
The circuit board used in the final 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 backside ground slug 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.
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
9 - 243