Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 10/99A
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF)
8
ns
On, Off (50% CTL to 90/10% RF)
30
ns
Video Feedthru
25
mV
Input Power For 1 dB Compression
0.502.5 GHz
+28
dBm
0.05 GHz
+23
dBm
Intermodulation Intercept Point
For Two-tone Input Power +5 dBm
0.502.5 GHz
+46
dBm
0.05 GHz
+40
dBm
Control Voltages
V
Low
= 0 to 0.2 V @ 20 A Max.
V
High
= -5 V @ 50 A to -8 V @ 200 A Max.
GaAs IC SPDT Switch
Non-Reflective DC2.5 GHz
Features
Low DC Power Consumption
High Isolation (40 dB @ 0.9 GHz)
Non-Reflective
AS338-12
Description
The AS338-12 is a low cost IC FET SPDT non-reflective
switch in a plastic SOIC-8 package for commercial
applications. The switch operates with -5, 0 V or 0, +5 V
when "floated" as shown on the following page. This
general purpose SPDT switch is used in various tele-
communications applications.
Parameter
1
Frequency
2
Min.
Typ.
Max.
Unit
Insertion Loss
3
DC0.5 GHz
0.5
0.7
dB
DC1.0 GHz
0.6
0.8
dB
DC2.0 GHz
0.7
0.9
dB
DC2.5 GHz
1.2
1.4
dB
Isolation
DC0.5 GHz
43
46
dB
DC1.0 GHz
36
39
dB
DC2.0 GHz
27
30
dB
DC2.5 GHz
23
26
dB
VSWR
4
DC0.5 GHz
1.2:1
1.3:1
DC1.0 GHz
1.2:1
1.4:1
DC2.5 GHz
1.3:1
1.5:1
Electrical Specifications at 25C (0, -5 V)
0.049
(1.24 mm)
0.016
(0.41 mm)
0.016 MAX.
(0.41 mm) x
45 CHAMFER
PIN 1
0.197 (5.00 mm)
0.189 (4.80 mm)
0.068
(1.73 mm) MAX.
0.010 (0.25 mm)
0.004 (0.10 mm)
0.010 (0.25 mm)
0.007 (0.17 mm)
0.158 (4.00 mm)
0.150 (3.80 mm)
8
MAX.
0.020 (0.51 mm) MAX.
0.244 (6.20 mm)
0.228 (5.80 mm)
0.050 (1.27 mm) BSC
PIN 8
PIN 1
INDICATOR
Operating Characteristics at 25C (0, -5 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. DC = 300 kHz.
3. Insertion loss changes by 0.003 dB/C.
4. Input/output.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
SOIC-8
GaAs IC SPDT Switch Non-Reflective DC2.5 GHz
AS338-12
2
Skyworks Solutions, Inc. [781] 376-3000
Fax [781] 376-3100 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 10/99A
2.5
2.0
2.0
1.5
1.5
1.0
1.0
0.5
0.5
0
0
Frequency (GHz)
Insertion Loss vs. Frequency
Insertion Loss (dB)
2.00
2.0
2.5
1.75
1.50
1.5
1.25
1.00
1.0
0.5
0
Frequency (GHz)
VSWR vs. Frequency
VSWR
Frequency (GHz)
Isolation vs. Frequency
60
50
40
30
20
0
1
2
3
4
5
J
1
J
3
J
1
J
2
Isolation (dB)
Typical Performance Data (0, -5 V)
12
3
4
87
6
5
V
S
10 k
J
1
V
1
V
2
GND
J
3
C
BL
50
C
BP
J
2
C
BL
C
BP
GND
50
C
BL
Characteristic
Value
RF Input Power
2 W > 500 MHz 0/-8 V
0.5 W @ 50 MHz 0/-8 V
Control Voltage
+0.2 V, -8 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
25C/W
Absolute Maximum Ratings
Note: Exceeding these parameters may cause irreversible damage.
Pin Out
V
1
V
2
J
1
J
2
J
1
J
3
0
-5
Insertion Loss
Isolation
-5
0
Isolation
Insertion Loss
Truth Table
Negative Operation
Positive Operation
1
V
1
V
2
J
1
J
2
J
1
J
3
V
High
0
Insertion Loss
Isolation
0
V
High
Isolation
Insertion Loss
V
High
= +5 to +8 V (V
S
= V
High
0.2 V).
1. Refer to Application Notes for further information.
External components shown are for positive voltage operation only.
C
BL
= 100 pF, C
BP
= 1000 pF for operation >500 MHz.
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