ALPHA AS190-73

Preliminary
PHEMT GaAs IC High Linearity 3 V
Control SPDT Switch 0.1–2 GHz
AS190-73
Features
SOT-6
■ +2.5 to +5 V Linear Operation
P-0.1 dB ≥ 37 dbm
0.074
(1.90 mm REF.)
0.126 (3.20 mm)
0.087 (2.20 mm)
PIN 6
■ Harmonics H2, H3 > 65 dBc @
PIN = 34.5 dBm
■ Low Insertion Loss (0.5 dB @ 0.9 GHz)
■ Ultra Miniature SOT-6 Package
■ PHEMT Process
0.020 (0.51 mm)
0.014 (0.350 mm)
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.
0.037 (0.95 mm) REF.
0.057 (1.45 mm)
0.035 (0.90 mm)
0.006
(0.15 mm)
0.000
(0.00 mm)
Description
0.071 (1.80 mm)
0.052 (1.30 mm)
PIN 1
INDICATOR
PIN 1
0.012
(0.30 mm)
TYP.
5.0˚ ± 1˚
0.014
(0.26 mm)
0.004
(0.10 mm)
5.0˚ ± 1˚
0.122 (3.10 mm)
0.106 (2.70 mm)
0.022 (0.61 mm)
0.004 (0.10 mm)
Electrical Specifications at 25°C (0, +3 V)
Parameter1
Insertion
Frequency
Loss2
Min.
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
Isolation
0.1–0.5 GHz
0.5–1.0 GHz
1.0–2.0 GHz
VSWR3
0.1–1.0 GHz
1.0–2.0 GHz
22
15
10
Typ.
Max.
Unit
0.25
0.35
0.75
0.40
0.50
0.90
dB
dB
dB
24
17
12
dB
dB
dB
1.2:1
1.3:1
dB
dB
Operating Characteristics at 25°C (0, +3 V)
Parameter
Condition
Frequency
Switching Characteristics4
Rise, Fall (10/90% or 90/10% RF)
On, Off (50% CTL to 90/10% RF)
Video Feedthru
Input Power for -0.1 dB Compression
0/+3 V
Harmonics H2, H3
PIN = 34.5 dBm
Control Voltages
VLow = 0 to 0.2 V @ 20 µA Max.
VHigh = +2.5 V @ 100 µA Max. to +5 V @ 200 µA Max.
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
Min.
Typ.
Max.
Unit
60
100
50
ns
ns
mV
0.9 GHz
+37
dBm
0.9 GHz
+70
dBc
3. Insertion loss state.
4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com
Specifications subject to change without notice. 1/00A
1
PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.1–2 GHz
AS190-73
0
0
-0.1
-5
-0.2
-0.3
Isolation (dB)
Insertion Loss (dB)
Typical Performance Data
-0.4
-0.5
-0.6
-0.7
-10
-15
-20
-25
-30
-0.8
-35
-0.9
-40
-1.0
0
0.5
1.0
1.5
0
2.0
1.0
1.5
2.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
Isolation vs. Frequency
2.0
80
H2
75
1.8
70
H2, H3 (dBc)
VSWR
0.5
1.6
1.4
1.2
65
60
55
H3
50
45
40
35
1.0
30
0
0.5
1.0
1.5
2.0
2.0
2.5
3.0
3.5
4.0
4.5
VCTRL (V)
VSWR vs. Frequency
Harmonics vs. Control Voltage
34.5 dBm 900 MHz GSM Pulse
Truth Table
Pin Out
Insertion Loss
VHigh
0
Insertion Loss
Isolation
J2
CBL
GND
4
CBL
V1
CBL
3
J3
5
J1–J3
Isolation
6
J1–J2
VHigh
2
V2
0
1
V1
VHigh = +2.5 to +5 V.
V2
DC blocking capacitors (CBL) must be supplied externally.
CBL = 100 pF for operating frequency >500 MHz.
2
5.0
Frequency (GHz)
Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected]phaind.com • www.alphaind.com
Specifications subject to change without notice. 1/00A
J1