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MC145436A - Low-Power Dual Tone Multiple Frequency Receiver

Description

VDD Positive Power Supply (PDIP, SOG

Pin 4) The digital supply pin, which is connected to the positive side of the power supply.

Pin 8, SOG

Pin 9) Ground return pin is typically connected to the system ground.

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.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.
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