HWS421 GaAs DC-2.0 GHz SPDT High Power Switch May 2011 V3 Features SOT-26 • Low Insertion Loss: 0.40 dB @ 0.9 GHz • High Isolation: 28 dB @ 0.9 GHz • Harmonics: <-65 dBc • Low DC Power Consumption • Low Cost SOT-26 Using Lead (Pb) free materials with RoHS compliant Description The HWS421 is a GaAs MMIC SPDT high power switch in a low cost SOT-26 plastic lead (Pb) free package. The HWS421 features low insertion loss with very low DC power consumption. This high power switch can be used in GSM and PCS systems as selection of transmit or receive function for a common antenna. Electrical Specifications at 25°C with 0, +3V Control Voltages Parameter Test Conditions Min. Typ. Max. Unit 0.40 0.50 0.60 0.70 dB dB Insertion Loss DC-1.0 GHz DC-2.0 GHz Isolation DC-1.0 GHz DC-2.0 GHz VSWR DC-2.0 GHz 1.20:1 Input Power for One dB Compression 0.5-2.0 GHz 38 dBm 34 dBm @1 GHz 70 dBc 200 ns nd 2 rd & 3 Harmonics Switching Time Control Current 25 19 27.5 21.5 dB dB 100 uA Note: All measurements made in a 50 ohm system with 0/+3.0V control voltages, unless otherwise specified. Hexawave Inc. 2 Prosperity Road II, Science-Based Industrial Park, Hsinchu, Taiwan. TEL 886-3-578-5100 FAX 886-3-577-0512 http://www.hw.com.tw All specifications are subject to change without notice. HWS421 GaAs DC-2.0 GHz SPDT High Power Switch May 2011 V3 Typical Performance Data @ +25°C Harmonic Rejection @ 34 dBm, 1 GHz 85 Harmonic Rejection (dBc) Insertion Loss vs Frequency Insertion Loss(dB) 0.0 -0.2 -0.4 -0.6 -0.8 80 2nd Harmonic 75 70 3rd Harmonic 65 60 2.5 3.0 3.5 Control Voltage (Volt) -1.0 0.5 1.0 1.5 2.0 Frequency(GHz) 2.5 4.0 3.0 Absolute Maximum Ratings Isolation vs Frequency Parameter Absolute Maximum Isolation(dB) -10 -15 RF Input Power 0.5-2.5 GHz +38 dBm -20 Control Voltage +6V -25 Operating Temperature -30 Storage Temperature -40°C to +85°C -65°C to +150°C -35 Pin Out (Top View) -40 0.5 1.0 1.5 2.0 Frequency(GHz) 2.5 3.0 CB RF2 Return Loss vs Frequency GND 6 2 5 VC2 CB -10 RF1 3 -20 4 CA CB -15 Return Loss(dB) CA 1 RFC VC1 DC blocking capacitors CB are required on all RF ports. CB=CA=51pF for operating frequency > 500MHz. -25 -30 Logic Table for Switch On-Path -35 -40 0.5 1.0 1.5 2.0 Frequency(GHz) 2.5 3.0 VC1 VC2 RFC-RF1 RFC-RF2 1 0 Insertion Loss Isolation 0 1 Isolation Insertion Loss ‘1’ = +3V to +5V ‘0’ = 0V to +0.2V Hexawave Inc. 2 Prosperity Road II, Science Park, Hsinchu, Taiwan. TEL 886-3-578-5100 FAX 886-3-577-0512 http://www.hw.com.tw All specifications are subject to change without notice.