GaAs SPDT Terminated Switch
DC - 2.5 GHz
SW-337, SW-338, SW-339
V2.00
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
s
Asia/Pacific: Tel. +81 (03) 3226-1671
s
Europe: Tel. +44 (1344) 869 595
Fax (800) 618-8883
Fax +81 (03) 3226-1451
Fax +44 (1344) 300 020
1
Specifications Subject to Change Without Notice.
Electrical Specifications,
T
A
= 25C
Features
Very Low Power Consumption: 75 W
Low Insertion Loss: 0.5 dB
High Isolation: 33 dB up to 2 GHz (SW-337, SW-338)
28 dB up to 2 GHz (SW-339)
Very High Intercept Point: 46 dBm IP
3
Nanosecond Switching Speed
Temperature Range: -40C to +85C
Low Cost SOIC8 Plastic Package
Tape and Reel Packaging Available
1
Description
M/A-COM's SW-337, SW-338 and SW-339 are GaAs MMIC
SPDT terminated switches in a low cost SOIC 8-lead
surface mount plastic package. They are ideally suited for
use where very low power consumption is required.
Typical applications include transmit/receive switching,
switch matrices, and filter banks in systems such as: radio
and cellular equipment, PCM, GPS, fiber optic modules,
and other battery powered radio equipment. The difference
between the switches is in the pin configuration.
The SW-337, SW-338 and SW-339 are fabricated with
monolithic GaAs MMICs using a mature 1-micron process.
The process features full chip passivation for increased
performance and reliability.
SO-8
0-8
.0075-0.0098
(0.19-0.25)
.1890-.1968
(4.80-5.00)
.0099-0.0196
x 45 Chamfer
(0.25-0.50)
.2284-.2440
(5.80-6.20)
PIN 8
Orientation
mark
PIN 1
.1497-.1574
(3.80-4.00)
- B -
- A -
.050(1.27) BSC.
.013-.020 TYP.
(0.33-0.51)
.0040-.0098
(0.10-0.25)
- C -
.0532-.0688
(1.35-1.75)
.016-.050
(0.40-1.27)
.010(0.25) M B M
.010(0.25) M C A M B S
.004 (0.10)
Part Number
Package
SW-337 PIN
SOIC 8 Lead
SW-337 TR
Forward Tape & Reel
SW-337 RTR
Reverse Tape & Reel
SW-338 PIN
SOIC 8 Lead
SW-338 TR
Forward Tape & Reel
SW-338 RTR
Reverse Tape & Reel
SW-339 PIN
SOIC 8 Lead
SW-339 TR
Forward Tape & Reel
SW-339 RTR
Reverse Tape & Reel
Ordering Information
SW-337, SW-338
SW-339
Parameter
Test Conditions
2
Unit
Min.
Typ.
Max
Min.
Typ.
Max.
Insertion Loss
DC 0.1 GHz
dB
0.4
0.6
0.4
0.6
DC 0.5 GHz
dB
0.5
0.7
0.5
0.7
DC 1.0 GHz
dB
0.5
0.7
0.5
0.7
DC 2.0 GHz
dB
0.7
0.9
0.7
0.9
Isolation
DC 0.1 GHz
dB
50
53
50
53
DC 0.5 GHz
dB
43
46
43
46
DC 1.0 GHz
dB
36
39
35
38
DC 2.0 GHz
dB
30
33
25
28
VSWR
On
DC 2.0 GHz
1.2:1
1.2:1
Off
DC 2.0 GHz
1.2:1
1.2:1
Trise, Tfall
10% to 90% RF, 90% to 10% RF
nS
7
7
Ton, Toff
50% Control to 90% RF, 50% Control to 10% RF
nS
10
10
Transients
In Band
mV
25
25
One dB
Input Power
0.05 GHz
dBm
25
25
Compression Point
Input Power
0.5 2.0 GHz
dBm
30
30
2nd Order
Measured Relative
0.05 GHz
dBm
60
60
Intercept
to Input Power
0.5 2.0 GHz
dBm
65
65
(for two-tone input power up to +5 dBm)
3rd Order
Measured Relative
0.05 GHz
dBm
40
40
Intercept
to Input Power
0.5 2.0 GHz
dBm
46
46
(for two-tone input power up to +5 dBm)
1. Refer to "Tape and Reel Packaging" Section, or contact factory.
2. All measurements with 0, -5 control voltages at 1 GHz in a 50
system, unless otherwise specified.
q
q
q
q
q
q
q
q
8-Lead SOP outline dimensions
Narrow body .150
(All dimensions per JEDEC No. MS-012-AA, Issue C)
Dimensions in ( ) are in mm.
Unless otherwise noted: .xxx = 0.010 (.xx = 0.25)
.xx = 0.02 (.x = 0.5)
GaAs SPDT Terminated Switch
SW-337, SW-338, SW-339
V2.00
M/A-COM, Inc.
North America:
Tel. (800) 366-2266
s
Asia/Pacific: Tel. +81 (03) 3226-1671
s
Europe: Tel. +44 (1344) 869 595
Fax (800) 618-8883
Fax +81 (03) 3226-1451
Fax +44 (1344) 300 020
2
Specifications Subject to Change Without Notice.
Parameter
Absolute Maximum
1
Max. Input Power
0.05 GHz
+27 dBm
0.5 2.0 GHz
+34 dBm
Control Voltage
+5V, -8.5V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
Absolute Maximum Ratings
Pin Configuration
SW-337
SW-338
SW-339
Truth Table
Typical Performance
@ +25C
1. Operation of this device above any one of these parameters may
cause permanent damage.
8
7
6
5
1
4
3
2
RF1
GND
GND
RFC
GND
RF2
B
A
8
7
6
5
1
4
3
2
RF1
GND
GND
RFC
GND
RF2
A
B
5
4
A
B
6
3
RF1
RF2
7
2
GND
GND
RFC
GND
8
1
RF1
RF COM
Q1
Q2
Q3
Q4
RF2
A
B
Q6
Q5
Q8
Q7
T1
G1
G2
T2
FREQUENCY (GHz)
2.0
1.5
1.0
0.5
0
0
0.5
1.0
1.5
2.0
2.5
LOSS (dB)
ISOLATION vs FREQUENCY
VSWR vs FREQUENCY
INSERTION LOSS vs FREQUENCY
SW-337, SW-338
SW-339
FREQUENCY (GHz)
2.0
1.8
1.6
1.4
1.2
1.0
0
0.5
1.0
1.5
2.0
2.5
VSWR
RCF, RF1, RF2 On
RF1, RF2 Off
80
70
60
50
40
30
20
10
0
0
0.5
1.0
1.5
2.0
2.5
FREQUENCY (MHz)
ISOLATION (dB)
Pin Pin Pin
No. Description
No. Description
No. Description
1
A
1
B
1
RF Common
2
RF Common
2
RF Common
2
GND
3
B
3
A
3
RF1
4
GND
4
GND
4
A
5
RF1
5
RF1
5
B
6
GND
6
GND
6
RF2
7
GND
7
GND
7
GND
8
RF2
8
RF2
8
GND
Condition of Switch
Control Inputs
RF Common to Each RF Port
A
B
RF1
RF2
1
0
ON
OFF
0
1
OFF
ON
"0" 0 -0.2V @ 20 A max.
"1" -5V @ 30 A Typ to -8V @ 720 A max.
SW-337, SW-338
SW-339
Functional Schematics
Electrical Schematic
SW-339
SW-337
SW-338
PDF 
ZIP