features broadband performance high isolation; 50db typ at 1ghz ultra low dc power consumption fast switching speed; 3ns typical so14 surface mount plastic package 4 line control permits 'all-off' state description the p35-4227-5t is a high performance gallium arsenide single pole double throw broadband rf switch. it is suitable for use in broadband communications and instrumentation applications. a short circuit reflective termination is presented at the isolated output of the switch. the switch is controlled by the application of complimentary 0v/-5v or 0/-8v signals to the control lines in accordance with the truth table below. there is a choice of two line or four line control. four line control allows the use of an 'all-off' state. this die is fabricated using moc's 0.5 m m gate length mesfet process (s20) and is fully protected using silicon nitride passivation for excellent performance and reliability. this device is packaged in a low-cost so14 surface mount plastic package. electrical performance ambient temperature = 223c , z o = 50 w , control voltages = 0v/-5v unless otherwise stated notes 1. return loss measured in low loss switch state. 2. input power at which insertion loss compresses by 1db. gaas mmic spdt reflective switch, dc - 3ghz P35-4227-5R marconi optical components parameter conditions min typ max units insertion loss dc - 1ghz - 1.1 1.2 db 1 - 3ghz - 1.4 1.5 db isolation dc - 1ghz 38 45 - db 1 - 3ghz 20 35 - db input return loss 1 dc - 1ghz 20 22 - db 1 - 3ghz 12 14 - db output return loss 1 dc - 1ghz 20 22 - db 1 - 3ghz 12 14 - db 1db power compression point 2 0/-5v control; 50mhz - 21 - dbm 0/-5v control; 2ghz - 27 - dbm 0/-8v control; 50mhz - 22 - dbm 0/-8v control; 2ghz - 30 - dbm switching speed 50% control to 10%90%rf - 3 8 ns
typical performance at 22c absolute maximum ratings max control voltage -8v max i/p power +30 dbm operating temperature -40c to +85c storage temperature -65c to +150c insertion loss isolation input return loss output return loss
P35-4227-5R marconi optical components package outline electrical schematic switching truth table pin details pin function 1 rf in 2 ground 3 ground 4 rf2 5 ground 6 control 4 7 control 3 8 control 2 9 control 1 10 ground 11 rf1 12 ground 13 ground 14 ground control line signal path 1 2 3 4 rfin-rf1 rfin-rf2 0v 0v -5v -5v low loss isolated -5v -5v 0v 0v isolated low loss 0v -5v -5v 0v isolated isolated
the data and product specifications are subject to change without notice. these devices should not be used for device qualification and production without prior notice. ? marconi optical components ltd 2001 www.moc.marconi.com moc, caswell, towcester, northants, nn12 8eq, tel:+44 1327 356468 fax +44 1327 356698 463/sm/00055/200 iss 1/2 ordering information: P35-4227-5R
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