CMX641A Datasheet (CML) - DUAL SPM/SECURITY DETECTOR/GENERATOR

CMX641A, DUAL SPM/SECURITY DETECTOR/GENERATOR

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.

The detection sensitivity, frequency and bandwidth a

CMX641A 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