Description

The ProSLICis a low-voltage CMOS device that provides a complete analog telephone interface ideal for customer premise equipment (CPE) applications. The ProSLIC integrates subscriber line interface circuit (SLIC), codec, and battery generation functionality into a single CMOS integrated circuit.

Features

Performs all BORSCHT functions

Software-programmable internal balanced ringing up to 90 VPK (5 REN up to 4 kft, 3 REN up to 8 kft)

Integrated battery supply with dynamic voltage output

On-chip dc-dc converter continuously minimizes power in all operating modes

Entire solution can be powered from a single 3.3 V or 5 V supply

3.3 to 35 V dc input range

Dynamic 0 to –94.5 V output

Low-cost inductor and high-efficiency transformer versions supported

Software-programmable linefeed parameters:

Ringing frequency, amplitude, cadence, and waveshape

2-wire ac impedance and hybrid

Constant current feed (20 to 41 mA)

Loop closure and ring trip thresholds and filtering