GaAs SPDT Switch
DC-4 GHz
Features
q
q
SW-226/227/228
V 2.01
CR-2
q
q
Miniature Ceramic Package
Terminated (SE-226), High Isolation (SW-227),
Low Loss (SW-228)
Fast Switching Speed, 6 ns Typical
Ultra Low DC Power Consumption
Guaranteed Specifications *
(From -55擄C to +85擄C)
Frequency Range
DC-4 GHz
Model Number
SW-226 SW-227 SW-228
Insertion Loss
DC-4 GHz
1.5
1.4
1.0
dB Max
DC-2 GHz
1.2
1.1
0.8
dB Max
DC-1 GHz
1.0
1.0
0.7
dB Max
DC-0.5 GHz
0.9
0.9
0.7
dB Max
VSWR
DC-4 GHz
2.3:1
2.0:1
1.9:1
Max
DC-2 GHz
1.6:1
1.6:1
1.3:1
Max
DC-1 GHz
1.4:1
1.4:1
1.2:1
Max
DC-0.5 GHz
1.2:1
1.2:1
1.2:1
Max
Isolation
DC-4 GHz
25
35
22
dB Min
DC-2 GHz
40
40
32
dB Min
DC-2 GHz
48
50
42
dB Min
DC-0.5 GHz
53
55
50
dB Min
Bottom of Case is AC Ground.
Dimensions in ( ) are in mm.
Unless Otherwise Noted:.xxx = 鹵0.010 (.xx = 鹵0.25)
.xx = 鹵0.02 (.x = 鹵0.5)
Ordering Information
Model No.
SW-226 PIN
SW-227 PIN
SW-228 PIN
Package
Ceramic
Ceramic
Ceramic
Operating Characteristics
Impedance
50 Ohms Nominal
Switching Characteristics鈥?/div>
Trise, Tfall
3 ns Typ
Ton, Toff (50% CTL to 90/10% RF)
6 ns Typ
Transients (In-Band) SW-226/227
30 mV Typ
Transients (In-Band) SW-228
10 mV Typ
Input Power for 1 dB Compression
Control Voltages (Vdc)
0/-5
0/-8
0.5-4 GHz
+27
+33
dBm Typ
0.05 GHz
+21
+26
dBm Typ
Intermodulation Intercept Point
(for two-tone input power up to + 13 dBm)
Intercept Points
IP2
IP3
0.5 - 4 GHz
+68
+46
dBm Typ
0.05 GHz
+62
+40
dBm Typ
Control Voltages (Complementary Logic)
VIN Low (SW-226/227/228)
0 to -0.2V @ 20 碌A(chǔ) Max
VIN Hi (SW-226/227) -5V @ 110 碌A(chǔ) Typ to -8V @ 600 碌A(chǔ) Max
VIN Hi (228)
-5V @ 50 碌A(chǔ) Typ to -8V @ 300 碌A(chǔ) Max
Environmental
See Appendix for MIL-STD-883 screening option.
*
鈥?/div>
**
All specifications apply with 50 ohm impedance connected to all RF por ts
with 0 and -5 VDC control voltages.
Faster switching speed can be achieved with enhaned driver waveform.
For the SW-227 and SW-228 only, when an RF output is 鈥極FF鈥?it is
shorted to case ground.
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