TP5089 TP5089 DTMF (TOUCH-TONE) Generator

National Semiconductor

Description

TP5089 DTMF(TOUCH-TONE) Generator December 1991 TP5089 DTMF (TOUCH-TONE) Generator General .
The TP5089 is a low threshold voltage field-implanted metal gate CMOS integrated circuit It interfaces directly to a standard telephone keypad and gen.

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Datasheet Specifications

Part number: TP5089
Manufacturer: National Semiconductor
File Size: 119.91 KB
Datasheet: TP5089_NationalSemiconductor.pdf
Description: TP5089 DTMF (TOUCH-TONE) Generator

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

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TP5089 TP5089 DTMF TOUCH-TONE Generator National Semiconductor

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