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Line Circuits

Our Subscriber Line Interface Circuits (SLICs) provide an economical solution for adding voice channels to broadband applications such as residential broadband gateways, Digital Subscriber Line (DSL) Integrated Access Devices (IADs), cable embedded Multimedia Terminal Adapters (eMTAs), Fiber to the X (FTTX) and Fixed Long Term Evolution (LTE) applications. These SLICs support ringing and system power management, enabling energy-efficient control of telephone lines and meeting the European Code of Conduct (CoC) specifications.

How Can Our Line Circuits Benefit Your Broadband Gateway Application? 

  • Complete, low-cost complete solutions for adding phone service to Customer Premise Equipment (CPE)
  • Robust VoicePath API for controlling, supervising, packet exchanging and testing (GR-909) of the voice subscriber line
  • Integrated line tests for impedance, open lines, shorted lines, dangerous foreign voltages and other hazards

Featured Product

LE9643
Single-Channel 95V Tracking Battery Line Circuit Device

  • Single Foreign Exchange Subscriber (FXS) solution in a small 4 × 6 mm footprint
  • Configurable to operate a buck-boost fixed tracking supply or an inverting boost tracking power supply
  • Support for ringing and system power management to limit peak power requirements of the telephone line’s FXS port
  • Wideband clarity and complete BORSCHT functionality
  • Programmable to meet worldwide telephony requirements