标签: tuorial

AttenuatordesigntuorialSheet1of14AttenuatorDesignTutorialIntroductionAttenuatorsaredevicesusedtoadjustsignallevels,tocontrolimpedancemismatchandtoisolatecircuitstages.PassivedesignPassiveattenuatorsconsistoftwotypes‘pi’and‘Tee’attenuators.(1)PiAttenuatorThecircuitforthePiattenuatorisshowninFigure1.R3ZoutZinR1R2Zin>=ZoutFigure1PiAttenuatorR3=L110101Zin*ZoutL21010R2=110+11L10R3Zout101L10R1=110+11L10R3Zin101L10WhereL=desiredlossindBZin=desiredinputimpedance(ohms)Zout=desiredoutputimpedance(ohms)Sheet2of14(2)TeeAttenuatorThecircuitfortheTattenuatorisshowninFigure2R1R2ZinR3ZoutZin>=ZoutFigure2CircuitoftheTattenuatorLR……