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GaAs IC High Linearity Positive Control SPDT Switch DC-2 GHz AS139-73 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 0.074 (1.90 mm REF.) PIN 6 PIN 1 INDICATOR PIN 1 0.020 (0.51 mm) 0.014 (0.350 mm) 0.057 (1.45 mm) 0.035 (0.90 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 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. 0.006 (0.15 mm) 0.000 (0.00 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 25C (0, +5 V) Parameter1 Insertion Loss3 Frequency2 DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-1.0 GHz DC-2.0 GHz 20 15 8 Min. Typ. 0.3 0.4 1.0 23 17 10 1.3:1 1.3:1 1.4:1 1.8:1 Max. 0.4 0.6 1.2 Unit dB dB dB dB dB dB dB dB Isolation VSWR4 Operating Characteristics at 25C (0, +5 V) Parameter1 Switching Characteristics5 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru 0.9 GHz For Two-tone Input Power +10 dBm 0.9 GHz VLow = 0 to 0.2 V @ 20 A Max. VHigh = +3 V @100 A Max. to +5 V @ 200 A Max. VS = VHigh 0.2 V Frequency Min. Typ. 60 100 50 +38 +55 Max. Unit ns ns mV dBm dBm Input Power for 1 dB Compression Intermodulation Intercept Point (IP3) Control Voltages 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. 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 1 GaAs IC High Linearity Positive Control SPDT Switch DC-2 GHz AS139-73 Typical Performance Data (0, +5 V) 0.7 0.6 0.5 60 50 40 dB 0.4 0.3 0.2 DC dB 30 20 10 DC 1.0 2.0 1.0 2.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 2.0 1.8 1.6 Control Voltage 1.4 1.2 1.0 DC 1.0 2.0 Isolation vs. Frequency Absolute Maximum Ratings 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 Operating Temperature Storage Temperature JC Pin Out VS J2 CBL V1 Frequency (GHz) VSWR vs. Frequency 1 2 GND 6 5 10 k J1 Truth Table V1 0 VHigh V2 VHigh 0 J1-J2 Isolation Insertion Loss J1-J3 Insertion Loss Isolation J3 CBL CBL VHigh = +3 to +5 V (VS = VHigh 0.2 V). 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. 3/99A 3 4 V2 |
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