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TP5089, TP5089CN, TP5089N

Table of contents:
Info of TP5089
Info of TP5089CN
Info of TP5089N

TP5089, TP5089CN, TP5089N Selling Leads, Datasheet

MFG:DIP Package Cooled:DIP D/C:05+

TP5089, TP5089CN, TP5089N Datasheet download

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Part Number: TP5089

MFG: DIP

Package Cooled: DIP

D/C: 05+

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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 an inexpensive 3.579545 MHz crystal for high tone accuracy. The crystal and an output load resistor are the only external components required for tone generation. A MUTE OUT logic signal, which changes state when any key is depressed, is also provided.

TP5089 Maximum Ratings

Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Supply Voltage (V_DD- V_SS).................... 15V
Maximum Voltage at Any Pin .........V_DD +0.3V to V_SS-0.3V
Operating Temperature ..............-30°C to +60°C
Storage Temperature...............-55°C to+ 150°C
Maximum Power Dissipation .................500 mW

TP5089 Features

· 3.5V±10V operation when generating tones
· 2V operation of key scan and MUTE logic
· Static sensing of key closures or logic inputs
· On-chip 3.579545 MHz cry stal-controlled oscillator
· Output amplitudes proportional to supply voltage
· High group pre-emphasis
· Low harmonic distortion
· Open emitter-follower low-impedance output
· SINGLE TONE INHIBIT pin

TP5089 Connection Diagram

TP5089N General Description

The TP5089N is designed as one kind of DTMF generators,these tone dialers are low threahold voltage,field-implanted,metal gate CMOS integrated circuits.The devices interface directly to a standard telephone keypad and generate all dual tone multi-frequency pairs required in tone-dialing systems.The tone synthesizers are locked to an on-chip reference oscillator using an inexpensive 3.579545 MHz crystal for high tone accuracy.The crystal and an output load resistor are the only external components required for tone generation.AMUTE OUT logic signal,which changes state when any key is depressed,is also provided.

Features of the TP5089N can be summarized as:(1)2.5V to 10V operation when generating tones(TP5380);(2)2V operation of keyscan and MUTE logic;(3)power directly from telephone line;(4)interfaces with standard single-contact or 2-of-8 telephone keypad;(5)stasic sensing of key closures;(6)on-chip 3.579545 MHz crystal-controlled oscillator;(7)on-chip regulation of tone amplitudes;(8)high group and low group tones generated and mixed internally;(9)high group pre-emphasis;(10)low harmonic distortion;(11)open emitter-follower low-impedance output.

And the absolute maximum ratings of this part:(1)supply voltage:15V;(2)maximum voltage at any pin:Vdd+0.3V to Vss-0.3V;(3)operating temperature:-30 to +60;(4)storage temperature:-55 to +150;(5)maximum power dissipation:500 mW.

TP5089N Maximum Ratings

TP5089N Features

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