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M-993 - Region 1 MF Tone Generator

Datasheet Summary

Description

The M-993 is a monolithic CMOS integrated circuit designed to generate multifrequency (MF) tone pairs for use in trunk signaling.

The tones generated conform to CCITT R1 signal recommendations and to AT&T MF standards.

Features

  • Generates standard CCITT R1 MF tones.
  • Digital input control.
  • Linear (analog) output.
  • Power output capable of driving standard line.
  • 14-pin DIP.
  • Single 5-Volt supply.
  • Inexpensive 3.58 MHz time base.

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Datasheet preview – M-993

Datasheet Details

Part number M-993
Manufacturer Clare Inc.
File Size 140.23 KB
Description Region 1 MF Tone Generator
Datasheet download datasheet M-993 Datasheet
Additional preview pages of the M-993 datasheet.

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Full PDF Text Transcription

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M-993 Region 1 MF Tone Generator Features • Generates standard CCITT R1 MF tones • Digital input control • Linear (analog) output • Power output capable of driving standard line • 14-pin DIP • Single 5-Volt supply • Inexpensive 3.58 MHz time base Applications • Telephone systems • Test equipment Description The M-993 is a monolithic CMOS integrated circuit designed to generate multifrequency (MF) tone pairs for use in trunk signaling. The tones generated conform to CCITT R1 signal recommendations and to AT&T MF standards. The M-993 permits design engineers to implement a highly accurate MF sender with a minimum of space, power, and added components. The accuracy of the tone frequencies is assured through use of an easily obtained 3.58 MHz color burst crystal or an external 3.
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