VE8820 Description
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, low-power and dense, interface design without sacrificing.
VE8820 Key Features
- plete 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