GaAs IC High Power SPDT Switch DC-2 GHz AS279-12 Features High Linearity (55 dBm IP3 @ 0.9 GHz) SOIC-8 PIN 8 0.050 (1.27 mm) BSC Low Insertion Loss (0.4 dB @ 0.9 GHz) Low DC Power Consumption 0.244 (6.20 mm) 0.228 (5.80 mm) PIN 1 INDICATOR Description 0.020 (0.51 mm) MAX. PIN 1 The AS279-12 is a low cost IC FET SPDT switch in an SOIC-8 plastic package. This switch has been designed for use where extremely high linearity and low insertion loss are required. Some standard implementations include antenna changeover, T/R and diversity switching over 2 W. The AS279-12 switch can be used in many analog and digital wireless communication systems including cellular, GSM and DECT applications. 0.068 (1.73 mm) MAX. 0.197 (5.00 mm) 0.189 (4.80 mm) 0.010 (0.25 mm) 0.004 (0.10 mm) 0.016 MAX. (0.41 mm) x 45 CHAMFER 0.049 (1.24 mm) 0.016 (0.41 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) 0.010 (0.25 mm) 0.007 (0.17 mm) 8 MAX. Electrical Specifications at 25C (0, -5 V) Parameter1 Frequency2 Insertion Loss3 DC-0.1 DC-0.5 DC-1.0 DC-2.0 GHz GHz GHz GHz Isolation DC-0.1 DC-0.5 DC-1.0 DC-2.0 GHz GHz GHz GHz VSWR4 DC-2.0 GHz Min. 50 33 25 15 Typ. Max. Unit 0.3 0.35 0.4 0.6 0.4 0.5 0.6 0.8 dB dB dB dB 55 40 30 20 dB dB dB dB 1.3:1 1.4:1 Typ. Max. Operating Characteristics at 25C (0, -5 V) Parameter Switching Characteristics5 Condition Frequency Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru Input Power for 1 dB Compression Intermodulation Intercept Point (IP3) For Two-tone Input Power +10 dBm Control Voltages VLow = 0 to -0.2 V @ 20 A Max. VHigh = -5 V @ 50 A to -8 V @ 200 A Max. Min. Unit 30 35 20 ns ns mV 0.9 GHz +33 dBm 0.9 GHz +55 dBm 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. Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A 1 GaAs IC High Power SPDT Switch DC-2 GHz AS279-12 0.7 60 0.6 50 0.5 40 dB dB Typical Performance Data (0, -5 V) 0.4 30 0.3 20 0.2 10 1.0 DC DC 2.0 1.0 2.0 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 2.0 Absolute Maximum Ratings Characteristic 1.8 RF Input Power 5 W Max. > 0.9 GHz, 0/-5 V Control 1.6 Control Voltage 1.4 1.2 Value +0.2 V, -8 V Operating Temperature -40C to +85C Storage Temperature -65C to +150C JC 85C/W 1.0 DC 1.0 2.0 Frequency (GHz) Pin Out VSWR vs. Frequency Insertion Loss Isolation V1 5 0 J1 6 -5 7 Insertion Loss 8 J1-J3 Isolation V2 J2 GND 4 J1-J2 -5 GND 3 V2 0 J3 2 2 V1 1 Truth Table GND Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A