HomedatasheetMT88L70AN

MT88L70AN Datasheet

3 Volt Integrated DTMF Receiver
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Description

Description
The MT88L70 is a complete 3 Volt, 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 tone-pairs into a 4-bit code. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface.

Features
• 2.7 - 3.6 volt operation
• Complete DTMF receiver
• Low power consumption
• Internal gain setting amplifier
• Adjustable guard time
• Central office quality
• Power-down mode
• Inhibit mode
• Functionally compatible with Zarlink’s MT8870D

Applications
• Paging systems
• Repeater systems/mobile radio
• Credit card systems
• Remote control
• Personal computers
• Telephone answering machine

 

Features

Parameters

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Manufacturer information

ZARLINK SEMICONDUCTOR INC
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