GaAs SPDT Terminated Switch,
DC - 2.5 GHz
SW
-338
SO-8
V 4.00
Electrical Specifications
1
: T
A
= 25C
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Insertion Loss
--
DC - 0.1 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
dB
--
--
--
--
0.4
0.5
0.5
0.7
0.6
0.7
0.7
0.9
Isolation
--
DC - 0.1 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
dB
50
43
36
30
53
46
39
33
--
--
--
--
VSWR
On/Off
DC - 2.0 GHz
Ratio
--
1.2:1
--
Trise, Tfall
10% to 90% RF, 90% to 10 % RF
--
nS
--
30
--
Ton, Toff
50% Control to 90% RF,
50% Control to 10% RF
--
nS
--
10
--
Transients
In-Band
--
mV
--
25
--
1 dB Compression
Point
Input Power
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
--
--
25
30
--
--
2nd Order Intercept
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
--
--
60
65
--
--
3rd Order Intercept
Measured Relative to Input Power
(for two-tone input power up to +5 dBm)
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
--
--
40
46
--
--
Features
< Very Low Power Comsumption: 17 mW
< Low Insertion Loss: 0.5 dB
< High Isolation: 33 dB up to 2 GHz
< 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
Description
M/A-COM's SW-338 is a GaAs MMIC SPDT terminated
switche in a low cost SOIC 8-lead surface mount plastic
package. The SW-338 is 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 equip-
ment, PCM, GPS, fiber optic modules, and other battery
powered radio equipment.
The SW-338 is fabricated with monolithic GaAs MMICs
using a mature 1-micron process. The process features full
chip passivation for increased performance and reliability.
1. All measurements with 0, -5 control voltages at 1 GHz in a 50 Ohm system, unless otherwise specified.
GaAs SPDT Terminated Switch, DC - 2.5 GHz
SW-338
V 4.00
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s)
or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
2
Pin Configuration
Pin No.
Function
Pin No.
Function
1
B
5
RF1
2
RF Common
6
GND
3
A
7
GND
4
GND
8
RF2
Absolute Maximum Ratings
2
2. Operation of this device above any one of these
parameters may cause permanent damage.
Parameter
Absolute Maximum
Max Input Power
0.05 GHz
0.5 - 2.0 GHz
+27 dBm
+34 dBm
Control Voltage
+5V, -8.5V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
Functional Schematic
Truth Table
Control Inputs
A
B
RF1
RF2
1
0
ON
OFF
0
1
OFF
ON
Condition of Switch
RF Common to Each RF Port
Electrical Schematic
4
3
2
1
5
6
7
8
RF1
Q1
Q5
T1
Q6
Q2
G1
A
B
RF COM
Q3
Q4
Q7
G2
Q8
RF2
T2
GaAs SPDT Terminated Switch, DC - 2.5 GHz
SW-338
V 4.00
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s)
or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
n
North America: Tel. (800) 366-2266
n
Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n
Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
3
Typical Performance Curves @ +25C
Isolation vs. Frequency
Insertion Loss vs. Frequency
VSWR vs. Frequency
SO-8
Ordering Information
Part Number
Package
SW-338 PIN
SOIC 8 Lead
SW-338TR
Forward Tape and Reel
SW-338RTR
Reverse Tape and Reel
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
2.5
Frequency (MHz)
Inser
tion Loss (dB
)
1.0
1.2
1.4
1.6
1.8
2.0
0.0
0.5
1.0
1.5
2.0
2.5
Frequency (MHz)
VSWR
RFC, RF1, RF2 On
RF1, RF2 Off
0
10
20
30
40
50
60
70
80
0.0
0.5
1.0
1.5
2.0
2.5
Frequency (MHz)
I
s
ol
ati
on (dB
)
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