描述 Description

The Si3230 ProSLIC? is a low-voltage CMOS device that provides a multi-functional subscriber line interface ideal for customer premise equipment (CPE) applications. The ProSLIC integrates subscriber line interface circuit (SLIC) and battery generation functionality into a single CMOS integrated circuit.

特性 Features

■ Software Programmable SLIC with codec interface

■ 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 V to 35 V dc input range

● Dynamic 0 V to –94.5 V output

■ Software programmable linefeed parameters:

● Ringing frequency, amplitude, cadence, and waveshape

● 2-wire ac impedance

● constant current feed (20 to 41 mA)

● Loop closure and ring trip thresholds and filtering

■ Software programmable signal generation and audio processing:

● DTMF generation and decoding

● 12 kHz/16 kHz pulse metering generation

● Phase-continuous FSK (caller ID) generation

● Dual audio tone generators

● Smooth and abrupt polarity reversal

■ Extensive test and diagnostic features

● Realtime dc linefeed measurement

● GR-909 line test capabilities

■ SPI control interface

■ Extensive programmable interrupts

■ 100 software configurable global solution

■ Lead-Free and RoHS-compliant package options available

Applications

■ Interface to Broadcom devices

● BCM11xx residential gateway

● BCM3341 VOIP processor

● BCM33xx cable modem

■ Voice over IP

■ Terminal adapters

■ Fixed cellular terminal