GaAs IC 2 Watt High Linearity SPDT Switch DC-2 GHz AS138-59 Features High Linearity (55 dBm IP3 @ 0.9 GHz) MSOP-8 Low Loss (0.35 dB @ 0.9 GHz) Antenna Changeover and T/R Cellular Switch -3 to -5 V Operation 0.0256 (0.65 mm) TYP. PIN 1 INDICATOR PIN 1 Description The AS138-59 is a GaAs FET IC high linearity SPDT switch in a MSOP-8 plastic package. This switch is designed for use where extremely high linearity and low insertion loss 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 AS138-59 switch can be used in many analog and digital wireless communication systems including cellular applications. 7.0 0.038 (0.95 mm) TYP. 0.030 (0.75 mm) 0.118 (3.00 mm) 0.004 (0.1 mm) SQ. 0.012 (0.30 mm) 0.017 (0.43 mm) 0.193 (4.90 mm) REF. + 0.006 (0.15 mm) - 0.002 (0.05 mm) 0.007 (0.18 mm) 0.005 (0.12 mm) 0.006 (0.15 mm) 0.002 (0.05 mm) 8.0 MAX. 0.028 (0.70 mm) 0.016 (0.40 mm) Electrical Specifications at 25C (0, -5 V) Parameter1 Frequency2 Insertion Loss3 DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz Isolation DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz VSWR4 DC-1.0 GHz DC-2.0 GHz Min. 20 15 8 Typ. Max. Unit 0.3 0.4 1.0 0.4 0.6 1.2 dB dB dB 23 17 10 dB dB dB 1.3:1 1.5:1 1.4:1 1.8:1 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 = -3 V @ 50 A to -5 V @ 200 A Max. Min. Unit 60 100 50 ns ns mV 0.9 GHz +35 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 2 Watt High Linearity SPDT Switch DC-2 GHz AS138-59 Typical Performance Data (0, -5 V) 60 0.6 50 0.5 40 dB dB 0.7 0.4 30 0.3 20 0.2 DC 1.0 10 DC 2.0 1.0 Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency 2.0 Absolute Maximum Ratings Characteristic 1.8 RF Input Power Control Voltage 1.4 1.2 +0.2 V, -8 V Operating Temperature -40C to +85C Storage Temperature -65C to +150C JC 1.0 DC 1.0 2.0 Frequency (GHz) 25C/W Pin Out 8 7 V2 J1 3 6 V1 5 J2 V1 V2 J1-J2 J1-J3 0 -5 Isolation Insertion Loss -5 0 Insertion Loss Isolation 4 GND 1 Truth Table J3 OPEN 2 GND VSWR vs. Frequency Value 6 W Max. > 0.9 MHz, 0/-5 V Control 1.6 2 2.0 Frequency (GHz) 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