Features
Very Low Power Consumption: 100 W
Low Insertion Loss: 0.5 dB
High Isolation: 25 dB up to 2 GHz
Very High Intercept Point: 48 dBm IP3
Nanosecond Switching Speed
Temperature Range: -40C to +85C
Low Cost SOIC14 Plastic Package
Tape and Reel Packaging Available
1
Description
M/A-COM's SW-289 is a GaAs MMIC DPDT switch in a low cost
SOIC 14-lead surface mount plastic package. The SW-289 is ideally
suited for use where very low power consumption is re q u i re d .
Typical applications include transmit/receive switching, switch
matrices, digital step attenuators, and filter banks in systems such as:
radio and cellular equipment, PCM, GPS, fiber optic modules, and
other battery powered radio equipment.
The SW-289 is fabricated with a monolithic GaAs MMIC using a
m a t u re 1-micron process. The process features full chip passivation
for increased perf o rmance and re l i a b i l i t y .
GaAs DPDT Switch
DC - 2 GHz
S W-289
S O - 1 4
Parameter
Test Conditions
2
Unit
Min.
Typ.
Max
Insertion Loss
DC 0.1 GHz
dB
0.35
0.5
DC 0.5 GHz
dB
0.35
0.5
DC 1.0 GHz
dB
0.4
0.6
DC 2.0 GHz
dB
0.6
0.8
Isolation
DC 0.1 GHz
dB
50
56
DC 0.1 GHz
dB
40
43
DC 1.0 GHz
dB
32
35
DC 2.0 GHz
dB
20
23
VSWR
DC 2.0 GHz
1.3:1
Trise, Tfall
10% to 90% RF, 90% to 10% RF
nS
3
Ton, Toff
50% Control to 90% RF, 50% Control to 10% RF
nS
6
Transients
In Band
mV
15
One dB
Input Power
0.05 GHz
dBm
22
Compression
Input Power
0.5 2.0 GHz
dBm
27
Measured Relative
0.05 GHz
dBm
54
IP2
to Input Power
0.5 2.0 GHz
dBm
66
(for two-tone input power up to +5 dBm)
Measured Relative
0.05 GHz
dBm
45
IP3
to Input Power
0.5 2.0 GHz
dBm
48
(for two-tone input power up to +5 dBm)
Electrical Specifications, TA = +25C
1. Refer to "Tape and Reel Packaging" section, or contact factory.
2. All measurements with 0, -5 V control voltages at 1 GHz in a 50
system, unless otherwise specified.
Ordering Information
Part Number
Package
SW-289 PIN
SOIC 14-Lead Plastic Package
SW-289TR
Forward Tape & Reel
SW-289RTR
Reverse Tape & Reel
q
q
q
q
q
q
q
q
V 2.00
V 2.00
GaAs DPDT Switch
S W- 2 8 9
Functional Sch e m a t i c
Truth Ta bl e
Electrical Schematic
Control Input
Condition of Switch
A
B
RF1 TO
RF6 TO
RF2
RF3
RF4
RF 5
1
0
On
Off
On
Off
0
1
Off
On
Off
On
Absolute Maximum Ratings
1
1.Operation of this device above any one of these parameters may cause per-
manent damage.
Parameter
Absolute Maximum
Max. Input Power
0.05 GHz
+27 dBm
0.5 2.0 GHz
+34 dBm
Control Voltage
+5 V, -8.5 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
Pin Configuration
Pin No.
Description
1
RF3
2
GND
3
RFI
4
GND
5
RF2
6
GND
7
A
Pin No.
Description
8
B
9
GND
10
RF4
11
GND
12
RF6
13
GND
14
RF5
Typical Pe r fo r m a n c e
"0" 0 -0.2V @ 20 A max.
"1" -5V @ 40 A Typ to -8V @ 900 A max.
GND
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