Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
1
Specifications subject to change without notice. 1/00A
PHEMT GaAs IC High Linearity 3 V
Control SPDT Switch 0.12 GHz
Features
I +2.5 to +5 V Linear Operation
P
-0.1 dB
37 dbm
I Harmonics H
2
, H
3
> 65 dBc @
P
IN
= 34.5 dBm
I Low Insertion Loss (0.5 dB @ 0.9 GHz)
I Ultra Miniature SOT-6 Package
I PHEMT Process
SOT-6
AS190-73
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 AS190-73 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, 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 AS190-73 switch can be
used in many analog and digital wireless communication
systems including cellular, GSM and DECT applications.
Parameter
1
Frequency
Min.
Typ.
Max.
Unit
Insertion Loss
2
0.10.5 GHz
0.25
0.40
dB
0.51.0 GHz
0.35
0.50
dB
1.02.0 GHz
0.75
0.90
dB
Isolation
0.10.5 GHz
22
24
dB
0.51.0 GHz
15
17
dB
1.02.0 GHz
10
12
dB
VSWR
3
0.11.0 GHz
1.2:1
dB
1.02.0 GHz
1.3:1
dB
Electrical Specifications at 25C (0, +3 V)
Preliminary
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
+70
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.
PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.12 GHz
AS190-73
2
Alpha Industries, Inc. [781] 935-5150
Fax [617] 824-4579 Email sales@alphaind.com www.alphaind.com
Specifications subject to change without notice. 1/00A
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 (dB)
Frequency (GHz)
Insertion Loss vs. Frequency
-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
Frequency (GHz)
Isolation vs. Frequency
Isolation (dB)
0
0.5
1.0
1.5
2.0
-40
-35
-30
-25
-20
-15
-10
-5
0
Frequency (GHz)
VSWR vs. Frequency
1.0
1.2
1.4
1.6
1.8
2.0
VSWR
0
0.5
1.0
1.5
2.0
H
2
, H
3
(dBc)
V
CTRL
(V)
Harmonics vs. Control Voltage
34.5 dBm 900 MHz GSM Pulse
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
H
2
H
3
Typical Performance Data
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