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MT8889C - Integrated DTMFTransceiver with Adaptive Micro Interface

General Description

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

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

Key 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 MT8889CE/CE-1 20 Pin Plastic DIP MT8889CC/CC-1 20 Pin Ceramic DIP MT8889CS/CS-1 20 Pin SOIC MT8889CN/CN-1 24 Pin SSOP -40°C to +85°C.

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Datasheet Details

Part number MT8889C
Manufacturer Mitel Networks Corporation
File Size 356.09 KB
Description Integrated DTMFTransceiver with Adaptive Micro Interface
Datasheet download datasheet MT8889C Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MT8889C/MT8889C-1 ® Integrated DTMF Transceiver with Adaptive Micro Interface 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 MT8889CE/CE-1 20 Pin Plastic DIP MT8889CC/CC-1 20 Pin Ceramic DIP MT8889CS/CS-1 20 Pin SOIC MT8889CN/CN-1 24 Pin SSOP -40°C to +85°C Applications • • • • • Credit card systems Paging systems Repeater systems/mobile radio Interconnect dialers Personal computers The receiver section is based upon the industry standard MT8870 DTMF receiver while the transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signalling.