GaAs SPD Switch, DC - 3.0 GHz
SW-437
M/A-COM Division of AMP Incorporated
3
North America: Tel. (800) 366-2266, Fax (800) 618-8883
3
Asia/Pacific: Tel.+81 44 844 8296, Fax +81 44 844 8298
3
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
GaAs SPDT Switch
DC - 3.0 GHz
SW-437
Features
Low Cost Plastic SOT-363 Package
Low Insertion Loss <0.3dB @ 900 MHz
Low Power Consumption <15A @ +2.7V
Positive or Negative 2.5 to 8 V Control
Description
M/A-COM's SW-437 is a GaAs monolithic switch in a low cost
SOT-363 surface mount plastic package. The SW-437 is ideally
suited for applications where very low power consumption, low
insertion loss, very small size and low cost are required. Typical
application is in dual band systems where switching between
small signal components is required such as filter banks, single
band LNA's, converters etc. The SW-437 can be used in applica-
tions up to 0.25 Watts in systems such as cellular, PCS,
DCS1800, GSM, CDMA, W-CDMA and other analog/digital
wireless communications systems.
The SW-437 is fabricated using a mature 0.8 micron GaAs
MESFET process. The process features full passivation for
increased performance and reliability.
SOT-363 Plastic Package
1
Electrical Specifications T
A
= 25C
Ordering Information
Part Number
Package
SW-437 PIN
SOT-363 Plastic Package
SW-437TR
Forward Tape and Reel
1
SW-437RTR
Reverse Tape and Reel
1
SW-437SMB
Sample Board
1. Reference Application Note M513 for reel size information.
Parameter
Test Conditions
Units
Min.
Typ.
Max.
Insertion Loss
DC - 1 GHz
dB
0.3
0.4
1- 2 GHz
dB
0.4
0.5
2 - 3 GHz
dB
0.55
0.7
Isolation
DC - 1 GHz
dB
19
21
1 - 2 GHz
dB
13
15
2 - 3 GHz
dB
10
12
VSWR
DC - 3 GHz
1.2:1
1.3:1
P
1dB
(2.7V supply)
500 MHz - 3 GHz
dBm
24
P
1dB
(5V supply)
500 MHz - 3 GHz
dBm
27
Input IP
2
2-Tone 900 MHz, 5 MHz spacing (2.7 V)
dBm
81
Input IP
3
2-Tone 900 MHz, 5 MHz spacing (2.7 V)
dBm
55
T
rise
, T
fall
T
on
, T
off
Transients
10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF
In-Band
ns
ns
mV
10
20
10
Gate Leakage
V
CTL
= 2.5 V
A
4
15
1. All dimensions are JEDEC MO-203-AB Issue A and are shown
as in/mm.
.0059 (0.15) C
2X
.0079 (0.20) C
2X
.0059 (0.15) C
2X
.0039 (0.10) C
2X
.0492
1,25
.0256
0,65
.0512
1,3
.0787
2
.0827
2,1
PIN 6
-D-
.0098
.0031
0,25
0,08
.0142
.0039
0,30
0,1
.0165
0,42
REF
10
4
8
0
10
4
.0118
.0059
0,30
0,15
-A-
.0039 (0.10) M
C
A
-
B D
-
B
-
PIN 1
+.0038
-.0079
+0,10
-0,20
.0354
0,90
.0433
1,10
MAX
-C-
.0039
.0000
0,10
0,00
##X
GaAs SPD Switch, DC - 3.0 GHz
SW-437
M/A-COM Division of AMP Incorporated
3
North America: Tel. (800) 366-2266, Fax (800) 618-8883
3
Asia/Pacific: Tel.+81 44 844 8296, Fax +81 44 844 8298
3
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
Functional Schematic
Positive Control Voltage
Absolute Maximum Ratings
1
Parameter
Absolute Maximum
Max. Input Power (0.5 - 3.0 GHz)
3 V Control
5 V Control
+30 dBm
+33 dBm
Operating Voltage
+8.5 Volts
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
1. Exceeding any one or combination of these limits may cause
permanent damage.
Truth Table
Mode
(Control)
V1
V2
RFC - RF1
RFC - RF2
Positive
1
00.2V
+2.5 to +8V
+2.5 to +8V
00.2V
On
Off
Off
On
Negative
2
00.2V
-2.5V to -8V
-2.5V to -8V
00.2V
Off
On
On
Off
1. External DC blocking capacitors are required on all RF ports.
39pF capacitors used for positive control voltage.
2. If negative control is used, DC blocking capacitors are not required
on RF Ports.
PIN Configuration
PIN No.
Function
Description
1
RF1
RF in/out
2
GND
RF Ground
3
RF2
RF in/out
4
V2
V Control 2
5
RFC
RF COMMON
6
V1
V Control 1
Handling Procedures
The following precautions should be observed to avoid damage:
Static Sensitivity
Gallium Arsenide Integrated Circuits are ESD sensitive and can
be damaged by static electricity. Proper ESD techniques should
be used when handling these devices.
Functional Schematic
Negative Control Voltage
PIN 1
RF1
RF2
GND
V1
RFC
V2
PIN 1
RF1
RF2
GND
V1
RFC
V2
39pF
39pF
39pF
GaAs SPD Switch, DC - 3.0 GHz
SW-437
M/A-COM Division of AMP Incorporated
3
North America: Tel. (800) 366-2266, Fax (800) 618-8883
3
Asia/Pacific: Tel.+81 44 844 8296, Fax +81 44 844 8298
3
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
www.macom.com
AMP and Connecting at a Higher Level are trademarks.
Specifications subject to change without notice.
V2.00
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
IL (dB)
25C
-40C
+85C
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
IL (dB)
-40C
25C
+85C
1
1.05
1.1
1.15
1.2
1.25
1.3
1.35
1.4
1.45
1.5
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
VSWR
NEGATIVE CONTROL
POSITIVE CONTROL
10
15
20
25
30
35
40
0
0.5
1
1.5
2
2.5
3
FREQUENCY (GHz)
ISOLATION (dB)
Typical Performance Curves
Isolation vs. Frequency over Temperature
VSWR vs. Frequency
Insertion Loss vs. Frequency over
Temperature (Postive Control)
Insertion Loss vs. Frequency over
Temperature (Negative Control)
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