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| Communication ICs Wide band IF detector for digital cordless phone and RF remote control units BH4126FV The BH4126FV is an IC equipped with internal mixer, IF amplifier, and FM detector circuits, developed for use with degital cordless phone and RF remote control units. FApplications Digital cordless phones Keyless entry FFeatures 1) Equipped with internal mixer, IF, RSSI, and FM detection circuits. 2) Can be operated at mixer input frequencies ranging from 20MHz to 300MHz. 3) Equipped with a battery power saving function. 4) Fast RSSI response. 73 Communication ICs FBlock diagram BH4126FV FAbsolute maximum ratings (Ta=25_C, for measurement circuit) FOperating range 74 Communication ICs FPin descriptions BH4126FV 75 Communication ICs BH4126FV 76 Communication ICs BH4126FV 77 Communication ICs FElectrical characteristics (unless otherwise noted, Ta=25_C, VCC=3.0V) FSignal source : fIN (MIX) = 248.45MHz, fIN (LO) = 237.65MHz, 100dBV FAC level to be indicated by termination BH4126FV 78 Communication ICs Signal source : fIN (MIX) = 248.45MHz, fIN (LO) = 237.65MHz,100dBV, fIN (IF) = 10.8MHz; AC level to be indicated by termination BH4126FV Signal source : fIN (IF) =10.8MHz, f=10kHz dev, fm=1kHz; AC level to be indicated by termination 79 Communication ICs FMeasurement circuit BH4126FV 80 Communication ICs FApplication example BH4126FV 81 Communication ICs FExternal dimensions (Units: mm) BH4126FV 82 |
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