MT88L70 Datasheet | Mitel Networks Corporation

® ISO2-CMOS MT88L70 3 Volt Integrated DTMF Receiver Features - - - - - - - - - 2.7 - 3.6 volt operation plete DTMF receiver Low power consumption Internal gain setting amplifier Adjustable guard time Central office quality Power-down mode Inhibit mode ISSUE 2 May 1995 Functionally patible with Mitel’s MT8870D Applications - - - - - - Paging systems Repeater systems/mobile radio Credit card systems Remote control Personal puters Telephone answering machine PWDN IN + IN GS m o .c U 4 t e e h S a t a .D w w w Description VDD VSS VRef INH Bias Circuit VRef Buffer Chip Chip Power Bias High Group Filter Digital Detection Algorithm Code Converter and Latch Dial Tone Filter...