The miSLIC™ Line Circuits together with a VoIP processor or SoC, provide an economical turn-key solution for derived voice applications. The miSLIC devices are controlled by a VoIP processor or SoC through a simple, single serial interface. The dual channel Le9642 miSLIC device uses energy efficient shared power supply topologies for reduced BOM cost. The Le9642 can be configured for patent-pending shared Buck-Boost Automatic Battery Switching (BBABS) or for shared flyback ABS (FBABS) operation. Ringing and system power management are supported to limit the peak power requirements of each telephone line FXS port. The dual channel Le9642 features wideband clarity and complete BORSCHT functionality. Manufacturing test and subscriber line testing are standard features. All AC, DC, and power parameters are programmable making the miSLIC device suitable for any application requiring SLIC functionality.

• Economical, fifth generation line interface solution for VoIP processors and SoCs
• Smaller, 48-pin 7x7 mm QFN package
• Dual Channel Architecture
• Single port 4-wire interface control (ZSI)
• Compatible with numerous VoIP processors and SoC solutions
• Less expensive isolation than multi-port control
• Simplifies board routing
• VoicePath SDK and VP-API-II software available to implement FXS functions
• VeriVoice Professional Test Suite Software
• Comprehensive subscriber loop testing, including Telcordia GR-909-CORE / TIA-1063 diagnostic testing
• Industry leading advanced test software
• VeriVoice Manufacturing Test (VVMT) Package
• Facilitates factory testing and calibration of assembled boards
• Low cost, energy efficient, shared switching regulator architectures
• Dual output power supplies
• Integrated battery switches
• Up to 70 Vrms open circuit ringing with 5 REN load
• Low cost, 2-Layer PCB reference designs
• Complete wideband BORSCHT functionality
• Worldwide programmability
• Per channel narrowband or wideband operation