TP5088 ای سی مبدل باینری به DTMF (تلفن)

تخفیف ویژه

This CMOS device provides low cost tone-dialing capability in microprocessor-controlled telephone applications. 4-bit binary data is decoded directly, without the need for conversion to simulated keyboard inputs required by standard DTMF generators. With the TONE ENABLE input low, the oscillator is inhibited and the device is in a low power idle mode. On the low-to-high transition of TONE ENABLE, data is latched into the device and the selected tone pair from the standard DTMF frequencies is generated. An open-drain N-channel transistor provides a MUTE output during tone generation.

Features

 Direct microprocessor interface

Binary data inputs with latches

Generates 16 standard tone pairs

On-chip 3.579545 MHz crystal-controlled oscillator

Better than 0.64% frequency accuracy

High group pre-emphasis

Low harmonic distortion

MUTE output interfaces to speech network

Low power idle mode

 3.5V –8V operation

دانلود دیتاشیت :

http://www.alldatasheet.com/datasheet-pdf/pdf/9350/NSC/TP5088.html