com CMX631A Low Voltage SPM Detector D/631A/1 May 1998 Provisional Information 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 0.
8mA) • Call Charge Applications on PABX Line Cards • Complex and/or Simple Telephone Systems • Remote Telephone/Payphones Brief Description 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 co...

Since 2006. D4U Semicon,
Electronic Components Datasheet Search Site. (Privacy Policy & Contact)