CML FX631
Low-Voltage SPM Detector
| Part No. | FX631 |
|---|---|
| Datasheet | FX631 Download |
| Manufacturer |  CML |
| Description | Low-Voltage SPM Detector |
| Buy | Stock & Price |
FEATURES
Detects 12kHz and 16kHz SPM Frequencies Low Power (3.0 VoltMIN <1.0mA) Operation High Speechband Rejection Properties Publication D/631/8 July 1998 Tone-Follower and Packet Mode OutputsAPPLICATIONS
Complex and/or Simple Telephone Systems Call-Charge/-Logging Systems XTAL/CLOCK XTAL/CLOCK OSCILLATOR XTAL CLOCK OUT CLOCK IN SYSTEM CLOCK DIVIDERS VSS VDD SYSTEM (12kHz/16kHz) SIGNAL IN (-) SIGNAL IN (+) AMP OUT INPUT AMP - + 12kHz/16kHz +20dB VBIAS TONE FOLLOWER OUTPUT TONE FOLLOWER LOGIC LEVEL DETECTOR 32 1 DIVIDER PERIOD MEASURE SYSTEM PACKET TONE LOGIC PACKET MODE OUTPUT FX631 Fig.1 Functional Block Diagram BriefDESCRIPTION
The FX631 is a low-power, system-selectable Subscriber Pulse Metering (SPM) detector to indicate the presence, on a telephone line, of both 12kHz and 16kHz telephone call-charge frequencies. Deriving its input directly from the telephone line, input amplitu
