Preliminary
Preliminary
Preliminary
Product Description
Stanford Microdevices’ SSW-408 is a high performance Gal-
lium Arsenide Field Effect Transistor MMIC switch housed in a
low-cost surface mountable small outline plastic package.
SSW-408
DC-4 GHz High Power GaAs MMIC
SPDT Switch
This single-pole, double-throw reflective switch consumes less
than 50uA and can operate with positive or negative 3V to 8V
supply voltages, making it suitable for use in both infrastruc-
ture and subscriber equipment. This switch can be used in all
analog and digital wireless communication systems including
(but not limited to) AMPS, PCS, DECT, IS-95, IS-136, 802.11,
CDPD and GSM.
Product Features
At +5V or –5V bias, typical output power at 1dB compression
is 3 watts. 1dB output power over 4 watts and IP3 over +55dBm
may be achieved with higher control voltages.
• High Compression Point : up to 4 Watts
• HIgh Linearity : TOIP +55dBm @2GHz
• Low DC Power Consumption
• Low Insertion Loss : 1.2dB at 2GHz
• Operates from Positive or Negative 3V to 8V
Supplies
Isolation vs. Frequency
VControl = -5 V
-10
• Low Cost Small Outline Plastic Package
-20
dB
Applications
-30
• Analog/Digital Wireless Communications
• Spread Spectrum
-40
DC
1
2
3
4
• AMPS, PCS, DECT, IS-95, IS-136, 802.11,
CDPD and GSM.
GHz
Electrical Specifications at Ta = 25C
Parameters & Test
Symbol
Units
Min.
Typ.
Max.
Conditions: Zo = 50 ohms v = +5 or -5V
Insertion Loss
f = 0.05 - 1.0 GHz
f = 1.00 - 2.0 GHz
f = 2.00 - 4.00 GHz
dB
dB
dB
0.9
1.2
1.5
1.3
1.5
Ins
Isolation
f = 0.05 - 1.0 GHz
f = 1.00 - 2.0 GHz
f = 2.00 - 4.00 GHz
dB
dB
dB
24
18
28
22
18
Isol
Input & Output VSWR
(on port)
f = 0.05 - 2.0 GHz
f = 2.00 - 4.0 GHz
1.2
1.5
VSWR on
VSWR off
Input & Output VSWR
(off port)
f = 0.05 - 2.0 GHz
f = 2.00 - 4.0 GHz
1.2
1.5
Output Power @ 2.0 GHz
at 1 dB Compression
V = +8V or -8V
V = +5V or -5V
V = +3V or -3V
dB
dB
dB
+36
+34
+31
P1dB
Third Order Intercept
Device Current
V = +8V or -8V
V = +5V or -5V
V = +3V or -3V
dB
dB
dB
+55
+53
+50
TO IP
uA
40
10
Id
Switching Speed
10% to 90% or 90% to 10%
nsec
Isw
The information provided herein is believed to be reliable at press time. Stanford Microdevices assumes no responsibility for inaccuracies or omissions.
Stanford Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Stanford Microdevices does not authorize or warrant any Stanford
Microdevices product for use in life-support devices and/or systems.
Copyright 2000 Stanford Microdevices, Inc. All worldwide rights reserved.
522 Almanor Ave., Sunnyvale, CA 94086
Phone: (800) SMI-MMIC
http://www.stanfordmicro.com
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