Datasheet Details
| Part number | CMX631A |
|---|---|
| Manufacturer | Consumer Microcircuits Limited |
| File Size | 335.05 KB |
| Description | Low Voltage SPM Detector |
| Datasheet | CMX631A_ConsumerMicrocircuitsLimited.pdf |
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Overview: .. CMX631A Low Voltage SPM Detector D/631A/1 May 1998 Provisional.
| Part number | CMX631A |
|---|---|
| Manufacturer | Consumer Microcircuits Limited |
| File Size | 335.05 KB |
| Description | Low Voltage SPM Detector |
| Datasheet | CMX631A_ConsumerMicrocircuitsLimited.pdf |
|
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|
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 ponent adjustable to the user's national ‘Must/Must-Not Decode’ specifications via an on-chip input amplifier.
The 12kHz and 16kHz frequency limits are accurately defined by the use of an external 3.579545MHz telephone-system Xtal or clock-pulse input.
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