Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
1
Specifications subject to change without notice. 6/01A
PHEMT GaAs IC High Linearity 3 V
Control SPDT Switch 0.12.5 GHz
Features
s
+2.5 to +5 V Linear Operation
s
Harmonics H
2
, H
3
> 65 dBc @
P
IN
= 34.5 dBm
s
Low Insertion Loss (0.35 dB @ 0.9 GHz)
s
High Isolation (24 dB @ 0.9 GHz)
s
Ultra Miniature SOT-6 Package
s
PHEMT Process
SOT-6
AS193-73
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 AS193-73 is a PHEMT 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
control voltage, high isolation, low insertion loss and ultra
miniature 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 3 W. The
Parameter
1
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss
2
0.10.5 GHz
0.30
0.4
dB
0.51.0 GHz
0.35
0.5
dB
1.02.0 GHz
0.45
0.6 dB
2.02.5 GHz
0.55
0.7 dB
Isolation
0.10.5 GHz
28
30
dB
0.51.0 GHz
22
24
dB
1.02.0 GHz
17
19
dB
2.02.5 GHz
15
17
dB
VSWR
3
0.11.0 GHz
1.2:1
dB
1.02.5 GHz
1.3:1
dB
Electrical Specifications at 25C (0, +3 V)
Parameter
Condition
Frequency
Min.
Typ.
Max.
Unit
Switching Characteristics
4
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 -0.1 dB Compression
0/+3 V
0.9 GHz
+37
dBm
Harmonics H
2
, H
3
P
IN
= 34.5 dBm
0.9 GHz
+65
dBc
Control Voltages
V
Low
= 0 to 0.2 V @ 20 A Max.
V
High
= +2.5 V @ 100 A Max. to +5 V @ 200 A Max.
Operating Characteristics at 25C (0, +3 V)
1. All measurements made in a 50
system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/C.
3. Insertion loss state.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
AS193-73 switch can be used in many analog and digital
wireless communication systems including cellular, GSM
and UMTS applications.
PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.12.5 GHz
AS193-73
2
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579
Email sales@alphaind.com
www.alphaind.com
Specifications subject to change without notice. 6/01A
C
BL
C
BL
V
1
J
1
V
2
J
2
GND
J
3
C
BL
12
3
65
4
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
= +2.5 to +5 V.
DC blocking capacitors (C
BL
) must be supplied externally.
C
BL
= 100 pF for operating frequency >500 MHz.
Insertion Loss vs. Frequency
Insertion Loss (dB)
Frequency (GHz)
-1.0
-0.9
-0.8
-0.7
-0.6
-0.5
-0.4
-0.3
-0.2
-0.1
0
0
0.5
1.0
1.5
2.0
2.5
3.0
IL
Isolation vs. Frequency
Isolation (dB)
Frequency (GHz)
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
0
0.5
1.0
1.5
2.0
2.5
3.0
VSWR vs. Frequency
VSWR (dB)
Frequency (GHz)
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
0
0.5
1.0
1.5
2.0
2.5
3.0
AS193-73 Harmonics vs. Control Voltage
P
IN
= 34.5 dBm, 900 MHz, GSM Pulsed
30
35
40
45
50
55
60
65
70
75
80
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V
CTRL
(V)
H
2
, H
3
(dBc)
H
2
H
3
Typical Performance Data
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
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