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CMX641A - DUAL SPM/SECURITY DETECTOR/GENERATOR

Description

The CMX641A is a low power, system selectable Dual Subscriber Pulse Metering (SPM) Detector two detectors on a single chip

to indicate the presence on a telephone line of either 12kHz or 16kHz telephone call charge frequencies.

Features

  • Two (12kHz/16kHz) SPM Detectors.
  • Selectable 12kHz/16kHz ASK Generator.
  • Selectable Tone Follower or Packet Mode 3-State Outputs.
  • Excellent Speech-Band Rejection.
  • Hardwired Control for Non-µC Systems.
  • Selectable Bandwidth Limits and Stable Centre Frequency from a Standard Xtal.

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Datasheet preview – CMX641A

Datasheet Details

Part number CMX641A
Manufacturer CML
File Size 464.26 KB
Description DUAL SPM/SECURITY DETECTOR/GENERATOR
Datasheet download datasheet CMX641A Datasheet
Additional preview pages of the CMX641A datasheet.

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Full PDF Text Transcription

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CMX641A DUAL SPM/SECURITY DETECTOR/GENERATOR D641A/5 January 2002 Features • Two (12kHz/16kHz) SPM Detectors • Selectable 12kHz/16kHz ASK Generator • Selectable Tone Follower or Packet Mode 3-State Outputs • Excellent Speech-Band Rejection • Hardwired Control for Non-µC Systems • Selectable Bandwidth Limits and Stable Centre Frequency from a Standard Xtal Applications Provisional Information • SPM for Pair-Gain Systems • Payphone Security Applications • Call Charge Applications in PBX and PABX Line Cards • Out-of-Band Signalling Systems • Low-Voltage FX/MX641 Replacement • µC Software-Programmable Secure Payphone Call Charging Apparatus 1.
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