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TP5089 Datasheet - National Semiconductor

TP5089 DTMF (TOUCH-TONE) Generator

TP5089 Features

* Y Y Y Y Y Y Y Y Y 3 5V

* 10V operation when generating tones 2V operation of keyscan and MUTE logic Static sensing of key closures or logic inputs On-chip 3 579545 MHz crystal-controlled oscillator Output amplitudes proportional to supply voltage High group pre-emphasis Low harmonic distort

TP5089 General Description

The TP5089 is a low threshold voltage field-implanted metal gate CMOS integrated circuit It interfaces directly to a standard telephone keypad and generates all dual tone multi-frequency pairs required in tone-dialing systems The tone synthesizers are locked to an on-chip reference oscillator using .

TP5089 Datasheet (119.91 KB)

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Datasheet Details

Part number:

TP5089

Manufacturer:

National Semiconductor

File Size:

119.91 KB

Description:

Tp5089 dtmf (touch-tone) generator.

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TP5089 TP5089 DTMF TOUCH-TONE Generator National Semiconductor

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