STLC3055N

WLL和ISDN- TA用户线接口电路 WLL & ISDN-TA SUBSCRIBER LINE INTERFACE CIRCUIT

Description

The is a SLIC device specifically designed for wireless local loop WLL and ISDN terminal adaptors ISDN-TA and VoIP applications. One of the distinctive characteristic of this device is the ability to operate with a single supply voltage from 5.5 V to 12 V and self generate the negative battery by means of an on chip DC/DC converter controller that drives an external MOS switch.

The battery level is properly adjusted depending on the operating mode. A useful characteristic for these applications is the integrated ringing generator.

The control interface is a parallel type with open drain output and 3.3 V logic levels.

Features

■ Monochip subscriber line interface circuit SLIC optimised for WLL and VoIP applications

■ Implement all key features of the BORSHT function

■ Single supply 5.5 V to 12 V

■ Built in DC/DC converter controller

■ Soft battery reversal with programmable transition time.

■ On-hook transmission.

■ Programmable off-hook detector threshold

■ Metering pulse generation and filter

■ Integrated ringing

■ Integrated ring trip

■ Parallel control interface 3.3 V logic level

■ Programmable constant current feed

■ Surface mount package

■ Integrated thermal protection

■ Dual gain value option

■ BCD III S, 90 V technology

■ -40 to +85 °C operating range