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FX651

Features: · Two Integrated Telecoms Functions:· Low Power (3.3V) Requirement· 12kHz SPM Detector· Half Duplex 18kHz Modem· Component Adjustable Input Sensitivity· Compact 16-pin Small Outline (SOIC) Package· Meets European 12kHz SPM Frequency Specifications· Card Operated Telephone Installations· ...

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SeekIC No. : 004345806 Detail

FX651: Features: · Two Integrated Telecoms Functions:· Low Power (3.3V) Requirement· 12kHz SPM Detector· Half Duplex 18kHz Modem· Component Adjustable Input Sensitivity· Compact 16-pin Small Outline (SOIC)...

FX651 Data Sheet

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Part Number:
FX651
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Two Integrated Telecoms Functions:
· Low Power (3.3V) Requirement
· 12kHz SPM Detector
· Half Duplex 18kHz Modem
· Component Adjustable Input Sensitivity
· Compact 16-pin Small Outline (SOIC) Package
· Meets European 12kHz SPM Frequency Specifications
· Card Operated Telephone Installations
· Worldwide Pay-Phone Applications


Specifications

Supply (VDD - VSS) ..........................................-0.3 to 7.0 V
Voltage on any pin (wrt VSS) ................-0.3 to VDD + 0.3 V
Current into or out of VDD and VSS pins .......-30 to +30 mA
Current into or out of any other pin ..............-20 to +20 mA
Storage Temperature ............................-55°C to +125 °C
Operating Temperature ...........................-40°C to +85 °C
Total Allowable Power Dissipation at Tamb = 25°C...800 mW
Derating ............................................................. 13 mW/°C


Description

The FX651 integrated circuit combines 12kHz Subscriber Private Metering (SPM) detection with 18kHz tone processing for anti-fraud purposes within a telephone system. This compact, low power FX651 is suitable for battery or line powered systems. Under simple logic or mProcessor control it will:

Decode 12kHz SPM pulses in the presence of high level voice and 18kHz signalling, and provide a logic output.
Transmit an NRZ modulated 18kHz security tone to line.
Decode an incoming modulated 18kHz security tone in the presence of high level voice and 12 kHz SPM tones, and provide a logic output.

Employing high accuracy switched capacitor filters, the FX651 is protected from crosstalk and false decoding.




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