Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
1
Specifications subject to change without notice. 3/99A
Parameter
1
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
+38
dBm
Intermodulation Intercept Point (IP3)
For Two-tone Input Power +10 dBm
0.9 GHz
+55
dBm
Control Voltages
V
Low
= 0 to 0.2 V @ 20 A Max.
V
High
= +3 V @100 A Max. to +5 V @ 200 A Max.
V
S
= V
High
0.2 V
GaAs IC High Linearity Positive Control
SPDT Switch DC2 GHz
Features
s
High Linearity (55 dBm IP3 @ 0.9 GHz)
s
Low Insertion Loss (0.35 dB @ 0.9 GHz)
s
Low DC Power Consumption
s
+3 V to +5 V Operation
s
Ultra Miniature SOT-6 Package
SOT-6
AS139-73
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
Description
The AS139-73 is a GaAs FET IC high linearity SPDT
switch in a SOT-6 plastic package. This switch has been
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 AS139-73 switch can be
used in many analog and digital wireless communication
systems including cellular, GSM and DECT 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
1.3:1
1.4:1
dB
DC2.0 GHz
1.3:1
1.8:1
dB
Electrical Specifications at 25C (0, +5 V)
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 High Linearity Positive Control SPDT Switch DC2 GHz
AS139-73
2
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 3/99A
0.7
0.6
0.5
0.4
0.3
0.2
1.0
2.0
Frequency (GHz)
Insertion Loss vs. Frequency
DC
d
B
2.0
1.8
1.6
1.4
1.2
1.0
1.0
2.0
Frequency (GHz)
VSWR vs. Frequency
DC
60
10
Frequency (GHz)
Isolation vs. Frequency
d
B
DC
20
1.0
2.0
30
40
50
Typical Performance Data (0, +5 V)
C
BL
C
BL
V
1
J
1
V
2
J
2
GND
J
3
C
BL
V
S
1
2
3
6
5
4
10 k
Characteristic
Value
RF Input Power
6 W Max. > 900 MHz,
0/-5 V Control
Control Voltage
-0.2 V, +8 V
Operating Temperature
-40C to +85C
Storage Temperature
-65C to +150C
JC
25C/W
Absolute Maximum Ratings
Pin Out
V
1
V
2
J
1
J
2
J
1
J
3
0
V
High
Isolation
Insertion Loss
V
High
0
Insertion Loss
Isolation
Truth Table
V
High
= +3 to +5 V (V
S
= V
High
0.2 V).
DC blocking capacitors (C
BL
) must be supplied externally.
C
BL
= 100 pF for operating frequency >500 MHz.
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