STLC3085 datasheet(1/28 Pages) STMICROELECTRONICS

Numer części	STLC3085

Szczegółowy opis	Integrated Pots Interface for Home Access Gateway and WLL

PDF	28 Pages

Scroll/Zoom	100%

Producent	STMICROELECTRONICS [STMicroelectronics]

Strona internetowa	http://www.st.com

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1 / 28 page

Preliminary Data

February 2006

Rev 1

1/28

28

STLC3085

Integrated Pots Interface

for Home Access Gateway and WLL

Features

■ Monochip SLIC optimised for WLL & VoIP

applications

■ Implement all key features of the borsht

function

■ Single supply (4.5 to 12V)

■ Built in DC/DC Converter controller

■ Soft battery reversal with programmable

transition time

■ On-hook transmission

■ Programmable off-hook detector threshold

■ Integrated ringing

■ Integrated ring trip

■ Parallel control interface (3.3V logic level)

■ Programmable constant current feed

■ Surface mount package

■ Integrated thermal protection

■ Dual gain value option

■ Automatic recognition flyback and buckboost

configuration

■ BCDIIIS 90V technology

■ -40 to +85°C operating range

Description

The STLC3085 is a SLIC device specifically

designed for WLL (Wireless Local Loop), and

ISDN Terminal Adaptors and VoIP applications.

One of the distinctive characteristic of this device

is the ability to operate with a single supply

voltage (from +4.5V to +12V) 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 3.3V logic levels. Constant

current feed can be set from 20mA to 25mA.

Off-hook detection threshold is programmable

from 5mA to 9mA.

The device, developed in BCDIIIS technology

(90V

process),

operates

in

the

extended

temperature range and integrates a thermal

protection that sets the device in power down

when Tj exceeds 140°C..

Order codes

(*) ECOPACK® (see Section 5)

TQFP44

Part number

Temp range,

°CPackage

Packing

E-STLC3085 (*)

-40 to 85

TQFP44

Tube

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