SWST-1A/SWST-1B B O WEI PIN SPST Switches BOWEI INTEGRATED CIRCUITS CO.,LTD. Typical Performance Insertion Loss VS. Frequency INSERTION LOSS(dB) -0.2 Features range:20～2000MHz ●High isolation ●Internal TTL driver ●Thin film construction,reflective design ●Operating temperature range:-55℃～+85℃ ●Frequency Ta=+25℃ Ta=+85℃ Ta= - 55℃ -1.2 -2.2 20 500 1000 1500 2000 Frequency(MHz) Specifications( measured in a 50Ωsystem, VCC=±5V, -55℃≤TA≤+85℃) Symbol Insertion loss IL Isolation VSWR T on T off Iso VSWR Ton (0.02～1.0)GHz (1.0～2.0)GHz (0.02～1.0)GHz SWST-1B (1.0～2.0)GHz (0.02～1.0)GHz SWST-1A dB (1.0～2.0)GHz (0.02～1.0)GHz SWST-1B (1.0～2.0)GHz 2.0:1 dB SWST-1A - 1.2 1.0 2.2 1.6 1.4 2.5 1.2 2.0 50 55 45 50 60 50 65 1.0 20 0.3 IN 1 3 2 5 6 4 TTL GND OUT ISOLATION(dB) +5V -5V 4 TO-8E 2000 1500 Isolation vs. Frequency 1 d B c ompression Input power :+ 20dBm Storage Temp:+125℃ 1 3 1000 45 Absolute Maximum Ratings 5 500 Frequency(MHz) “△” Measured at T C = 24±1℃ 2 1.4 55 0.4 6 VSWRi VSWRo 1.8 1.6 : 1 △ us VSWR VS . Frequency Typical Guaranteed Unit VSWR Parameter 55 65 Ta=+25℃ Ta=+85℃ Ta= - 55℃ 75 20 500 1000 1500 2000 Frequency(MHz) Applicat ion Notes 1 . ESD obs erve handl ing preca ntions . Over time soldering may cause Perm anent damage 2 . The high leve l of TTL con trol signal sho uld be higher than 3 . 5V to provi de 3 . When higher oper ating frequen cy and isol ation and required , isolation meas ures should be used betwee n input and output ports to abtain the guaranteed performance 4 . The dec oupl ing cap aci tors (> 0 . 1uF and 10000 pF ) are requi red to filter the iterferenc e on the power por t 5 . See ass embly sec tion for mount ing method Switching TTL 信号 Time 100nS/DIV ● TEL:+86-311-87091891 87091887 ● FAX:+86-311-87091282 ● http://www.cn-bowei.com ● E-mail:[email protected] 42