PHEMT GaAs IC High Linearity Positive Control SPDT Switch DC–2 GHz AS188-92 Features ■ High Linearity (50 dBm IP3 @ 0.9 GHz) @3V SC-70 6 Lead 0.079 (2.00 mm) ± 0.008 (0.20 mm) ■ Low Insertion Loss (0.35 dB @ 0.9 GHz) 0.0256 (0.65 mm) BSC 0.087 (2.20 mm) ± 0.008 (0.20 mm) ■ +3 V Operation ■ Ultra Miniature SC-70 6 Lead Package 0.049 (1.25 mm) ± 0.004 (0.10 mm) 0.009 (0.23 mm) REF PIN 1 INDICATOR ■ PHEMT Process 0.035 (0.90 mm) ± 0.004 (0.10 mm) Description 0.010 (0.25 mm) ± 0.006 (0.15 mm) 0.0055 (0.14 mm) ± 0.0015 (0.04 mm) The AS188-92 is a PHEMT GaAs FET IC high linearity SPDT switch in a SC-70 6 lead plastic package. This switch has been designed for use where extremely high linearity, 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 2 W. The AS188-92 switch can be used in many analog and digital wireless communication systems including cellular, GSM and DECT applications. 0.002 (0.005 mm) ± 0.002 (0.005 mm) 0.037 (0.95 mm) ± 0.006 (0.15 mm) 0.008 (0.20 mm) ± 0.004 (0.10 mm) Electrical Specifications at 25°C (0, +3 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. 23 18 13 Typ. Max. Unit 0.35 0.35 0.55 0.40 0.50 0.70 dB dB dB 26 22 17 dB dB dB 1.3:1 1.3:1 1.5:1 1.5:1 dB dB Typ. Max. Unit Operating Characteristics at 25°C (0, +3 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 60 100 50 ns ns mV 0.9 GHz +33 dBm 0.9 GHz +50 dBm Intermodulation Intercept Point (IP3) For Two-tone Input Power +17 dBm Control Voltages VLow = 0 to 0.2 V @ 20 µA Max. VHigh = +3 V @ 100 µA Max. to +5 V @ 200 µA Max. VS = VHigh ± 0.2 V 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. DC = 300 kHz. 3. Insertion loss changes by 0.003 dB/°C. Min. 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 [email protected] • www.alphaind.com Specifications subject to change without notice. 6/00A 1 PHEMT GaAs IC High Linearity Positive Control SPDT Switch DC–2 GHz AS188-92 0.8 45 0.7 40 0.6 Isolation (dB) Insertion Loss (dB) Typical Performance Data (0, +3 V) 0.5 0.4 0.3 0.2 30 25 20 15 0.1 0.0 0.0 0.5 1.0 1.5 2.0 10 0.0 2.5 0.5 1.0 1.5 2.0 2.5 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency Isolation vs. Frequency Absolute Maximum Ratings 2.1 2.0 Characteristic 1.9 RF Input Power 1.8 VSWR 35 1.7 Value 6 W Max. > 900 MHz 0/+7 V Control Control Voltage 1.6 -0.2 V, +7 V Operating Temperature -40°C to +85°C 1.4 Storage Temperature -65°C to +150°C 1.3 ΘJC 1.5 25°C/W 1.2 1.1 0.0 0.5 1.0 1.5 2.0 2.5 Pin Out Frequency (GHz) VS 0 VHigh VHigh Isolation Insertion Loss 0 Insertion Loss Isolation VHigh = +3 to +5 V (VS = VHigh ± 0.2 V). 2 J3 CBL 4 J1–J3 V1 V2 DC blocking capacitors (CBL) must be supplied externally. CBL = 100 pF for operating frequency >500 MHz. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 6/00A 10 kΩ CBL 3 J1–J2 5 GND V2 6 CBL Truth Table V1 2 J2 1 VSWR vs. Frequency J1