标签: channel-select

ACMOSChannel-SelectFilterforaDirect-ConversionWirelesThispaperwaspresentedattheSymposiumonVLSICircuits,Honolulu,June13-15,1996.Itappearsonpages62-63oftheconferenceproceedings.ACMOSChannel-SelectFilterforaDirect-ConversionWirelessReceiverP.J.Chang,A.Rofougaran,andA.A.AbidiElectricalEngineeringDepartmentUniversityofCaliforniaLosAngeles,CA90095-1594Introduction&SpecificationsWhereasnoiseandnonlinearityintheRFfront-enddeterminethesensitivityofawirelessreceiver,thefilterswhollygovernitsselectivity―thatis,itsabilitytopickoutasignalofinterestinafrequencyband,whilerejectingalltheothernearbysignalspopulatingthatband.Filtering,likeamplification,buildsprogressivelyinthereceiver.TheRFpreselectfilterattenuatestheimagetothedesiredchannel,……