CML CMX641A
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 are indepe| Part No. | CMX641A |
|---|---|
| Datasheet | CMX641A Download |
| Manufacturer |  CML |
| Description | DUAL SPM/SECURITY DETECTOR/GENERATOR |
| Buy | Stock & Price |
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 ChargeAPPLICATIONS
in PBX and PABX Line Cards● Out-of-Band Signalling Systems
● Low-Voltage FX/MX641 Replacement
● µC Software-Programmable Secure Payphone Call Charging Apparatus 1.1 Brief
DESCRIPTION
