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| GaAs SPDT Switch DC-4 GHz Features q q SW-226/227/228 V 2.01 CR-2 q q Miniature Ceramic Package Terminated (SE-226), High Isolation (SW-227), Low Loss (SW-228) Fast Switching Speed, 6 ns Typical Ultra Low DC Power Consumption Guaranteed Specifications * (From -55C to +85C) Frequency Range DC-4 GHz Model Number SW-226 SW-227 SW-228 Insertion Loss DC-4 GHz 1.5 1.4 1.0 dB Max DC-2 GHz 1.2 1.1 0.8 dB Max DC-1 GHz 1.0 1.0 0.7 dB Max DC-0.5 GHz 0.9 0.9 0.7 dB Max VSWR DC-4 GHz 2.3:1 2.0:1 1.9:1 Max DC-2 GHz 1.6:1 1.6:1 1.3:1 Max DC-1 GHz 1.4:1 1.4:1 1.2:1 Max DC-0.5 GHz 1.2:1 1.2:1 1.2:1 Max Isolation DC-4 GHz 25 35 22 dB Min DC-2 GHz 40 40 32 dB Min DC-2 GHz 48 50 42 dB Min DC-0.5 GHz 53 55 50 dB Min Bottom of Case is AC Ground. Dimensions in ( ) are in mm. Unless Otherwise Noted:.xxx = 0.010 (.xx = 0.25) .xx = 0.02 (.x = 0.5) Ordering Information Model No. SW-226 PIN SW-227 PIN SW-228 PIN Package Ceramic Ceramic Ceramic Operating Characteristics Impedance 50 Ohms Nominal Switching Characteristics Trise, Tfall 3 ns Typ Ton, Toff (50% CTL to 90/10% RF) 6 ns Typ Transients (In-Band) SW-226/227 30 mV Typ Transients (In-Band) SW-228 10 mV Typ Input Power for 1 dB Compression Control Voltages (Vdc) 0/-5 0/-8 0.5-4 GHz +27 +33 dBm Typ 0.05 GHz +21 +26 dBm Typ Intermodulation Intercept Point (for two-tone input power up to + 13 dBm) Intercept Points IP2 IP3 0.5 - 4 GHz +68 +46 dBm Typ 0.05 GHz +62 +40 dBm Typ Control Voltages (Complementary Logic) VIN Low (SW-226/227/228) 0 to -0.2V @ 20 A Max VIN Hi (SW-226/227) -5V @ 110 A Typ to -8V @ 600 A Max VIN Hi (228) -5V @ 50 A Typ to -8V @ 300 A Max Environmental See Appendix for MIL-STD-883 screening option. * ** All specifications apply with 50 ohm impedance connected to all RF por ts with 0 and -5 VDC control voltages. Faster switching speed can be achieved with enhaned driver waveform. For the SW-227 and SW-228 only, when an RF output is `OFF' it is shorted to case ground. GaAs SPDT Switch Truth Table** Control Input A1 SW-226/227 HI LO SW-228 HI LO B1 LO HI LO HI A2 LO HI NC NC Condition of Switch RF Common To Each RF PORT B2 RF1 RF2 HI ON OFF LO OFF ON NC ON OFF NC OFF ON SW-226/227/228 V 2.01 Pin Configuration Typical Performance INSERTION LOSS 2.0 1.5 1.0 0.5 0.0 0 1 2 2.0 1.8 VSWR SW-226/SW-227 1.6 SW-226/SW-227 1.4 1.2 SW-228 1.0 3 4 0 1 2 SW-228 3 4 FREQUENCY (GHz) FREQUENCY (GHz) ISOLATION 80 70 60 50 40 30 20 0 1 2 3 4 SW-227 SW-226 SW-228 FREQUENCY (GHz) |
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