U3750BM Datasheet (TEMIC Semiconductors) - One Chip Telephone Circuit

U3750BM, One Chip Telephone Circuit

TELEFUNKEN microelectronic’s one chip telephone circuit, U 3750 BM, is BICMOS integrated circuit that performs all the speech and line interface functions required in an electronic telephone set, the tone ringer, the pulse and DTMF dialling with redial, a keyboard interface with the possibility to i

U3750BM Features

* D Adjustable dc slope characteristic D Adjustable automatic line length receiving and sending gain control (not used in DTMF) with the possibility of fixed gain (PABX) D Adjustable dynamic impedance D Stabilized power supply for peripherals D Confidence level during pulse and DTMF dialling D Receivi