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PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.1-2.5 GHz
AS193-73 Features
s +2.5 to +5 V Linear Operation s Harmonics H2, H3 > 65 dBc @ PIN = 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
0.006 (0.15 mm) 0.000 (0.00 mm) 0.057 (1.45 mm) 0.035 (0.90 mm) 5.0 1
SOT-6
0.074 (1.90 mm REF.) PIN 6 PIN 1 INDICATOR PIN 1 0.020 (0.51 mm) 0.014 (0.350 mm) 0.126 (3.20 mm) 0.087 (2.20 mm) 0.071 (1.80 mm) 0.052 (1.30 mm)
0.037 (0.95 mm) REF. 0.012 (0.30 mm) TYP. 0.014 (0.26 mm) 0.004 (0.10 mm) 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
0.122 (3.10 mm) 0.106 (2.70 mm)
0.022 (0.61 mm) 0.004 (0.10 mm)
AS193-73 switch can be used in many analog and digital wireless communication systems including cellular, GSM and UMTS applications.
Electrical Specifications at 25C (0, +3 V)
Parameter1 Insertion Loss2 Frequency 0.1-0.5 0.5-1.0 1.0-2.0 2.0-2.5 0.1-0.5 0.5-1.0 1.0-2.0 2.0-2.5 GHz GHz GHz GHz GHz GHz GHz GHz 28 22 17 15 Min. Typ. 0.30 0.35 0.45 0.55 30 24 19 17 1.2:1 1.3:1 Max. 0.4 0.5 0.6 0.7 Unit dB dB dB dB dB dB dB dB dB dB
Isolation
VSWR3
0.1-1.0 GHz 1.0-2.5 GHz
Operating Characteristics at 25C (0, +3 V)
Parameter Switching Characteristics4 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru 0/+3 V PIN = 34.5 dBm 0.9 GHz 0.9 GHz Frequency Min. Typ. 60 100 50 +37 +65 Max. Unit ns ns mV dBm dBc
Input Power for -0.1 dB Compression Harmonics H2, H3 Control Voltages
VLow = 0 to 0.2 V @ 20 A Max. VHigh = +2.5 V @ 100 A Max. to +5 V @ 200 A Max.
3. Insertion loss state. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
1. All measurements made in a 50 system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/C.
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
1
PHEMT GaAs IC High Linearity 3 V Control SPDT Switch 0.1-2.5 GHz
AS193-73
Typical Performance Data
0 -0.1 0 -5 -10 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 0 0.5 1.0 1.5 2.0 2.5 3.0
Insertion Loss (dB)
Isolation (dB)
IL
-15 -20 -25 -30 -35 -40 -45 -50 0 0.5 1.0 1.5 2.0 2.5 3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
2.0 1.9 1.8 80 75 70 H2 65 60 55 50 45 40 35 30 0 0.5 1.0 1.5 2.0 2.5 3.0 2.0 H3
Isolation vs. Frequency
1.6 1.5 1.4 1.3 1.2 1.1 1.0
H2, H3 (dBc)
VSWR (dB)
1.7
2.5
3.0
3.5
4.0
4.5
5.0
Frequency (GHz)
VCTRL (V)
VSWR vs. Frequency
AS193-73 Harmonics vs. Control Voltage PIN = 34.5 dBm, 900 MHz, GSM Pulsed
Truth Table
V1 0 VHigh
VHigh = +2.5 to +5 V.
Absolute Maximum Ratings
V2 VHigh 0 J1-J2 Isolation Insertion Loss J1-J3 Insertion Loss Isolation Control Voltage Operating Temperature Characteristic RF Input Power Value 6 W Max. > 900 MHz, 0/+5 V Control -0.2 V, +8 V -40C to +85C -65C to +150C 25C/W
Pin Out
J2 CBL V1 J1
Storage Temperature JC 1 2
GND
6 5
CBL
J3
3
4
CBL
V2
DC blocking capacitors (CBL) must be supplied externally. CBL = 100 pF for operating frequency >500 MHz.
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

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