Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
1
Specifications subject to change without notice. 5/99A
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
5
Rise, Fall (10/90% or 90/10% RF)
60
ns
On, Off (50% CTL to 90/10% RF)
100
ns
Video Feedthru
50
mV
Input Power for 1 dB Compression
0.9 GHz
+33
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +10 dBm
0.9 GHz
+48
dBm
Control Voltages
V
Low
= -10.0 V
V
Low
0 V, 500 A, Max.
V
High
= 0 V
V
High
+10.0 V, 500 A, Max.
Differential = 5.0 V
(V
High
V
Low
) < 10.0 V
GaAs IC 2 Watt High Linearity
SPDT Switch DC2 GHz
Features
High Linearity (48 dBm IP3 @ 0.9 GHz)
Low Insertion Loss (0.35 dB @ 0.9 GHz)
Antenna Changeover and T/R Cellular
Switch
Ultra Miniature SOT-6 Lead Package
SOT-6
AS128-73
Description
The AS128-73 is a FET IC high power SPDT switch in a
SOT-6 plastic package. This switch is designed for use
where extremely high linearity, low insertion loss and
ultraminiature package size are required. It can be
controlled with positive, negative or a combination of both
voltages. Some standard implementations include
antenna changeover, T/R and diversity switching over
2 W. The AS128-73 switch can be used in many analog
and digital wireless communication systems including
cellular applications.
Parameter
1
Frequency
2
Min.
Typ.
Max.
Unit
Insertion Loss
3
DC0.5 GHz
0.3
0.4
dB
DC1.0 GHz
0.4
0.6
dB
DC2.0 GHz
1.0
1.2
dB
Isolation
DC0.5 GHz
20
23
dB
DC1.0 GHz
15
17
dB
DC2.0 GHz
8
10
dB
VSWR
4
DC1.0 GHz
1.4:1
1.5:1
DC2.0 GHz
1.8:1
2.0:1
Electrical Specifications at 25C (0, -5 V)
0.074
(1.90 mm REF.)
0.071 (1.80 mm)
0.052 (1.30 mm)
0.037 (0.95 mm) REF.
0.122 (3.10 mm)
0.106 (2.70 mm)
0.006
(0.15 mm)
0.000
(0.00 mm)
0.057 (1.45 mm)
0.035 (0.90 mm)
0.020 (0.51 mm)
0.014 (0.350 mm)
0.126 (3.20 mm)
0.087 (2.20 mm)
PIN 6
PIN 1
PIN 1
INDICATOR
0.022 (0.61 mm)
0.004 (0.10 mm)
0.014
(0.26 mm)
0.004
(0.10 mm)
0.012
(0.30 mm)
TYP.
5.0 1
5.0 1
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. Insertion loss state.
5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
GaAs IC 2 Watt High Linearity SPDT Switch DC2 GHz
AS128-73
2
Skyworks Solutions, Inc. [978] 241-7000
Fax [978] 241-7906 Email sales@skyworksinc.com www.skyworksinc.com
Specifications subject to change without notice. 5/99A
1.0
0.8
0.6
0.4
1.0
2.0
0
Frequency (GHz)
Insertion Loss vs. Frequency
dB
DC
0.2
2.0
1.8
1.6
1.4
1.2
1.0
1.0
2.0
Frequency (GHz)
VSWR vs. Frequency
DC
DC
60
50
40
30
1.0
2.0
10
Frequency (GHz)
Isolation vs. Frequency
dB
20
Typical Performance Data (0, -5 V)
C
BL
C
BL
V
1
J
1
V
2
J
2
GND
J
3
C
BL
12
3
65
4
Characteristic
Value
RF Input Power
6 W Max. > 900 MHz,
0/-5 V Control
Control Voltage
+0.2 V, -10 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
25C/W
Absolute Maximum Ratings
Pin Out
V
S
10 k
C
BL
C
BL
V
1
J
1
V
2
J
2
GND
J
3
C
BL
12
3
65
4
Positive Operation
DC block components must be supplied externally.
C
BL
= 100 pF for operation >500 MHz.
V
1
V
2
J
1
J
2
J
1
J
3
V
Low
V
High
Isolation
Insertion Loss
V
High
V
Low
Insertion Loss
Isolation
Truth Table
Negative or Differential Voltage Operation
1
Positive Voltage Operation
V
1
V
2
J
1
J
2
J
1
J
3
0
V
High
Isolation
Insertion Loss
V
High
0
Insertion Loss
Isolation
1. Where supply voltage is limited and for improved high power linearity a
larger differential voltage can be obtained by using a positive voltage for
V
High
along with a negative voltage for V
Low
. Refer to application notes for
further information.
V
High
= +5 to +10 V (V
S
= V
High
0.2 V).
Negative and Differential Voltages
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