Features
Low Insertion Loss, 1.0 dB Typical
Fast Switching Speed, 20 ns Typical
Ultra Low DC Power Consumption, 0.3 mA Typical
Integral TTL DRIVER
Guaranteed Specifications*
(From -55C to +85C)
Frequency Range
5-2000 MHz
Insertion Loss
5-2000 MHz
2.1 dB Max
5-1000 MHz
1.6 dB Max
5-500 MHz
1.4 dB Max
VSWR
5-2000 MHz
2.3:1 Max
5-1000 MHz
1.8:1 Max
5-500 MHz
1.3:1 Max
Isolation
5-2000 MHz
35 dB Min
5-1000 MHz
36 dB Min
5-500 MHz
42 dB Min
Operating Characteristics
Impedance
50 Ohms Nominal
Switching Characteristics
(TTL)
Trise, Tfall
7 ns
Ton, Toff (50% CTL to 90/10% RF)
20 ns
Transients (In-Band)
80 mV
Input Power for 1 dB Compression
500-2000 MHz
+27 dBm Typ
50 MHz
+21 dBm Typ
Intermodulation Intercept Point
(for two-tone input power up to +13 dBm)
Intercept Points
IP2
500-2000 MHz
+68
dBm Typ
50 MHz
+60
dBm Typ
Bias Power
+5 VDC @ 0.30 mA Typ, 1 mA Max
Environmental
MIL-STD-883 screening available.
* All specifications apply when operated with bias voltage of +5 VDC
and 50 ohm impedance at all RF ports.
DI-5
q
q
q
q
SW-255
Schematic
RF 4
GND
GND
RF COMMON
GND
GND
GND
RF 1
RF 3
CTL 4
CTL 3
CTL 2
CTL 1
+VDC
NC
RF 2
Truth Table
Control Input
Condition of Switch
"1" = Logic High
RF Common To Each RF Port
TTL(SW-255)
CTL1 CTL2 CTL3
CTL4
RF1
RF2
RF3
RF4
1
0
0
0
ON
OFF
OFF
OFF
0
1
0
0
OFF
ON
OFF
OFF
0
0
1
0
OFF
OFF
ON
OFF
0
0
0
1
OFF
OFF
OFF
ON
Ordering Information
Model No.
Package
SW-255 PIN
Dual Inline
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.
V3.00
GaAs SP4T Switch
5 - 2000 MHz
Dimensions in ( ) are in mm.
Unless Otherwise Noted: .xxx = 0.010 (.xx = 0.25)
.xx = 0.02 (.x = 0.5)
WEIGHT (APPROX.): 0.26 OUNCES 73 GRAMS
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.
GaAs SP4T Switch
SW-255
0.005
0.5
1.0
1.5
2.0
Typical Performance
2.0
1.5
1.0
0.5
0
LOSS (dB)
80
70
60
50
40
30
20
0.005
0.5
1.0
1.5
2.0
ISOLATION (dB)
2.0
1.8
1.6
1.4
1.2
1.0
0.005
0.5
1.0
1.5
2.0
VSWR
INSERTION LOSS
ISOLATION
VSWR
+85C
-55C
+25C
FREQUENCY GHz
0.005
0.5
1.0
1.5
2.0
Typical Performance
2.0
1.5
1.0
0.5
0
LOSS (dB)
80
70
60
50
40
30
20
0.005
0.5
1.0
1.5
2.0
ISOLATION (dB)
2.0
1.8
1.6
1.4
1.2
1.0
0.005
0.5
1.0
1.5
2.0
VSWR
INSERTION LOSS
ISOLATION
VSWR
+85C
-55C
+25C
FREQUENCY GHz
V3.00
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