VE8820 - Microsemi

VE8820 Dual Channel Tracking Battery Wideband Chipset

Microsemi®'s dual channel VE8820 Tracking Battery VoicePort™ chipset 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 chipset reduces system level cost, space, and power. Designers benefit by having a simple, cost effective, .

Features

 Complete BORSCHT Function for Two Channels in a Single VoicePort™ chipset — Battery Feed, Over-voltage support, integrated Ringing, line Supervision, Codec, Hybrid (2 W/4 W), Test
 Integrated Power Management — Integrated high voltage switching regulator controllers
  – Wide input voltage range (VSW =+3.3 V to +35 V)
  – 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, .