MT88L89 Datasheet (Mitel Networks Corporation) - 3V Integrated DTMFTransceiver with Adaptive Micro Interface

MT88L89, 3V Integrated DTMFTransceiver with Adaptive Micro Interface

The MT88L89 is a monolithic DTMF transceiver with call progress filter.

It is fabricated in CMOS technology offering low power consumption and high reliability.

TONE IN+ INGS OSC1 OSC2 + - m o .c U 4 t e e h S a t a .D w w w ∑ D/A Converters Row and Column Counters Transmit Data Register Status

MT88L89 Features

* Central office quality DTMF transmitter/ receiver Low voltage operation (2.7-3.6V) Adjustable guard time Automatic tone burst mode Call progress tone detection to -30dBm ISSUE 1 May 1995 Adaptive micro interface enables compati