TP5088 - TP5088 DTMF Generator for Binary Data

Product Overview

National Semiconductor

Datasheet Details

Part number	TP5088
Manufacturer	National Semiconductor
File Size	132.80 KB
Description	TP5088 DTMF Generator for Binary Data
Datasheet	TP5088 Datasheet
Additional preview pages of the TP5088 datasheet.

Product details

Description

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

Features

Y Y Y Y Y Y Y Y Y Y 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 Block Diagram TL H 5004.
1 Crystal Specification Parallel Resonant 3 579545 MHz RS s 150X L e 100 mH C0 e 5 pF C1 e 0 02 pF C1995 National Semic.

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Published: Apr 16, 2005 |