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MC145436A

Motorola
Part Number MC145436A
Manufacturer Motorola
Description Low-Power Dual Tone Multiple Frequency Receiver
Published Aug 24, 2005
Detailed Description MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145436A/D MC145436A Advance Information Low-Power Dua...
Datasheet PDF File MC145436A PDF File

MC145436A
MC145436A

Overview
MOTOROLA SEMICONDUCTOR TECHNICAL DATA Order this document by MC145436A/D MC145436A Advance Information Low-Power Dual Tone Multiple Frequency Receiver The MC145436A is a low–power and improved input sensitivity version of the MC14LC5436.
The MC145436A is a silicon gate CMOS LSI device containing the filter and decoder for detection of a pair of tones conforming to the DTMF standard with outputs in hexadecimal.
Switched capacitor filter technology is used together with digital circuitry for the timing control and output circuits.
The MC145436A provides excellent power line noise and dial tone rejection and is suitable for applications in central office equipment, PABX, and keyphone systems, remote control equipment and consumer telephony products.
The MC145436A offers the following performance features: • • • • • • • • Single + 5 V Power Supply Detects All 16 Standard Digits Uses Inexpensive 3.
58 MHz Crystal Provides Guard Time Controls to Improve Speech Immunity Output in 4–Bit Hexadecimal Code Built–In 60 Hz and Dial Tone Rejection Pin Compatible with SSI–204, MC145436, and MC14LC5436 Functional and Applicational Compatible with MC145436 and MC14LC5436 14 1 P SUFFIX PLASTIC DIP CASE 646 16 1 DW SUFFIX SOG PACKAGE CASE 751G ORDERING INFORMATION MC145436AP Plastic DIP MC145436ADW SOG Package PIN ASSIGNMENTS PDIP D2 D1 ENB VDD GT Xen Ain 1 2 3 4 5 6 7 14 13 12 11 10 9 8 D4 D8 DV ATB Xin Xout GND SOG D2 D1 ENB VDD NC GT Xen Ain 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 D4 D8 DV NC ATB Xin Xout GND NC = NO CONNECTION This document contains information on a new product.
Specifications and information herein are subject to change without notice.
REV 1 1/96 © Motorola, Inc.
1996 MOTOROLA MC145436A 1 BLOCK DIAGRAM 697 Ain 60 Hz REJECTION FILTER BS1 770 852 941 1209 BS2 1336 1477 1633 ATB Xen Xin Xout VOLTAGE REF OUTPUT REGISTER CHIP CLOCKS D4 OUTPUT DECODER ENB TIMING CIRCUIT DV PREAMP GT D1 D2 ÷8 CLOCK GEN D8 MC145436A 2 MOTOROLA MAXIMUM RATINGS (Volt...


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