MT8889C Datasheet (Mitel Networks Corporation) - Integrated DTMFTransceiver with Adaptive Micro Interface

MT8889C, Integrated DTMFTransceiver with Adaptive Micro Interface

The MT8889C is a monolithic DTMF transceiver with call progress filter.

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

TONE ∑ D/A Converters Row and Column Counters Transmit Data Register Status Register Data Bus Buffer D0 D1 D2 D3 Tone Burst Gating

MT8889C Features

* Central office quality DTMF transmitter/ receiver Low power consumption High speed adaptive micro interface Adjustable guard time Automatic tone burst mode Call progress tone detection to -30dBm ISSUE 2 May 1995 Ordering Information MT88