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Low Voltage Operation 2.5V
Low Harmonics > 65 dBc at +34 dBm & 1 GHz
Low Insertion Loss 0.5 dB at 1 GHz
High Isolation 18.5 dB at 2 GHz
Miniature FQFP 12-lead 3x3mm Package
0.5 micron GaAs pHEMT Process
Functional Schematic
GND
ANT
100 pF
PIN 12
PIN 1
V3
RF3
100 pF
GND
V1
RF1
100 pF
Description
M/A-COM鈥檚 SW-489 is a GaAs PHEMT MMIC single
pole three throw (SP3T) high power switch in a low cost
miniature FQFP 12-lead 3x3mm thin profile package.
The SW-489 is ideally suited for applications where high
power, low control voltage, low insertion loss, high isola-
tion, small size and low cost are required. Typical appli-
cations are for GSM and DCS handset systems that con-
nect separate transmit and receive functions to a com-
mon antenna, as well as other handset and related appli-
cations. This part can be used in all systems operating
up to 2.5 GHz requiring high power at low control volt-
age.
The SW-489 is fabricated using a 0.5 micron gate length
GaAs PHEMT process. The process features full pas-
sivation for performance and reliability.
GND
GND
GND
RF2
100 pF
Pin Configuration
PIN
No.
1
2
PIN Name
V3
RF3
GND
GND
RF2
V2
GND
RF1
V1
GND
ANT
GND
GND (paddle)
Description
Control 3
RF Port 3
RF Ground
RF Ground
RF Port 2
Control 2
RF Ground
RF Port 1
Control 1
RF Ground
Antenna Port
RF Ground
RF Ground
Absolute Maximum Ratings
Parameter
Max Input Power (0.5 - 2.5 GHz,
2.5V Control)
Operating Voltage
Operating Temperature
Storage Temperature
1
3
4
5
6
7
Absolute
Maximum
+38 dBm
+8.5 volts
-40 C to +85 C
-65
o
C to +150
o
C
o
o
8
9
10
11
1. Exceeding any one or combination of these limits may
cause permanent damage.
12
13
V2
1
2
3
4
5
