CMX631A Datasheet (Consumer Microcircuits Limited)

CMX631A, Low Voltage SPM Detector

The CMX631A is a low-power, system-selectable Subscriber Pulse Metering (SPM) detector that indicates the presence of either 12kHz or 16kHz telephone call-charge frequencies on a telephone line.

Deriving its input directly from the telephone line, input amplitude/sensitivities are component adjustab

CMX631A Features

* and Applications

* Detects 12kHz or 16kHz SPM Frequencies

* Tone Follower and Packet Mode Outputs

* High Speech-Band Rejection Properties

* Low Power Operation (2.7V