BU8871F Datasheet (Rohm) - DTMF receiver for telephones

BU8871F, DTMF receiver for telephones

181 Communication ICs FInput / output circuits BU8871F 182 Communication ICs FElectrical characteristics DC characteristics (unless otherwise noted, Ta=25_C, VDD=5.0V) BU8871F AC characteristics (unless otherwise noted, Ta=25_C, VDD=5.0V) 183 Communication ICs FMeasurement circuits BU8871

BU8871F Features

* a wide dynamic range, eliminating the need for an external input amplifier. Expertise from a number of companies has been incorporated into these products to enable guard time control through a host microcomputer. FApplications Telephone answering machines FFeatures 1) Dynamic range of 45dB. (intern