LE9642PQCT [Microchip]

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 patented Triple Buck-Boost Automatic Battery Switching (TBABS) or Buck-Boost ABS (BBABS) 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 wide-band 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