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MT8870D-1 Datasheet Integrated Dtmf Receiver

Manufacturer: Mitel

Overview: ISO2-CMOS MT8870D/MT8870D-1 ® Integrated DTMF Receiver.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The MT8870D/MT8870D-1 is a plete DTMF receiver integrating both the bandsplit filter and digital decoder functions.

The filter section uses switched capacitor techniques for high and low group filters;

the decoder uses digital counting techniques to detect and decode all 16 DTMF tonepairs into a 4-bit code.

Key Features

  • Complete DTMF Receiver.
  • Low power consumption.
  • Internal gain setting amplifier.
  • Adjustable guard time.
  • Central office quality.
  • Power-down mode.
  • Inhibit mode.
  • Backward compatible with MT8870C/MT8870C-1.

MT8870D-1 Distributor