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FX631

Part Number	FX631
Manufacturer	CML
Description	Low-Voltage SPM Detector
Published	Oct 27, 2016
Detailed Description	CML Semiconductor Products PRODUCT INFORMATION FX631 Low-Voltage SPM Detector Features Detects 12kHz and 16kHz SPM Freq...
Datasheet	FX631 PDF File

Overview

CML Semiconductor Products PRODUCT INFORMATION FX631 Low-Voltage SPM Detector 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 Outputs Applications 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 Brief Description 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...

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