器件名称: W682388DG
功能描述: Dual Programmable Extended CODEC/SLIC
文件大小: 131.73KB 共2页
简 介:Winbond W682388
Dual Programmable Extended CODEC/SLIC
he W682388 implements a dual channel FXS telephone line interface optimized for short loop applications. It integrates dual SLIC (Subscriber Line Interface Circuit) functionality with a dual channel programmable CODEC and a dual DC-DC controller. The SLIC supports internal ringing up to 90VPK (5REN at 4kft), ideal for customer premise equipment (CPE). The CODEC can be configured for μ-law/ A-law or 16-bit linear PCM encoding and supports a comprehensive set of signaling capabilities required to supervise and control both telephone lines. These include tone generation (including ring tones), DTMF generation and detection as well as FSK and metering pulse generation. An on-chip dual pulse width modulation (PWM) driver allows the control of DC-DC conversion for each line. Programmable impedance and transhybrid balancing allow for worldwide deployment.
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FEATURES
Performs complete BORSCHT functions for two channels on a single device Internal balanced ringing up to 90VPK (5REN up to 4kft) Integrated Power Management Integrated DC-DC controller regulates battery voltage to minimize power dissipation in all operating modes Programmable linefeed characteristics Ringing frequency, amplitude, cadence Trapezoidal and Sinusoidal waveforms Two-wire AC impedance, transhybrid balance Constant Current feed (20 to 41mA) Ring trip and loop closure thresholds Programmable signal generation DTMF generation and detection Metering pu……
