Le88276 - Microsemi

Le88276 Dual Channel Tracking Battery Wideband Chipset

The Microsemi® dual channel Le88276 Tracking Battery VoicePort™ device implements a dual-channel telephone line interface by providing all the necessary voice interface functions from the high voltage subscriber line to the µP/DSP digital interface. This device reduces system level cost, space, and power. Designers benefit by having a simple, cost effective,.

Features

 Complete BORSCHT function for 2 channels in a single VoicePort™ device — Battery Feed, Over-voltage support, integrated Ringing, line Supervision, Codec, Hybrid (2W/4W), Test
 Integrated Power Management — Integrated high voltage switching regulator controllers
  – Wide input voltage range (VSW =+4.75V to +35V)
  – Switching power supply tracks line voltage minimizing active & ringing state power dissipation — Low power Idle and On-hook transmission states
 Worldwide Programmability — Two-wire AC impedance, Balance Impedance, Gain — DC feed voltage and current limit — Ringing frequency, voltag.