STLC30R81 datasheet(1/17 Pages) STMICROELECTRONICS

部件名	STLC30R81

功能描述	INTEGRATED RINGING SLIC FOR SHORT LOOP APPLICATIONS

PDF	17 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STLC30R81

January 2006

■ MONOCHIP SLIC SUITABLE FOR SHORT

LOOP APPLICATIONS

■ 3.3V SUPPLY

■ IMPLEMENTS ALL KEY FEATURES OF THE

BORSHT FUNCTION

■ DIFFERENTIAL OR SINGLE-ENDED Rx

INPUTS

■ INTEGRATED TRAPEZOIDAL WAVEFORM

RINGING plus SINUSOIDAL and PWM

WAVEFORM RINGING CAPABILITY

■ TWO SELECTABLE PATH FOR SINUSOIDAL

RING INJECTION

■ SOFT BATTERY REVERSAL WITH

PROGRAMMABLE TRANSITION TIME

■ ON HOOK TRANSMISSION

■ LOW POWER DISSIPATION IN ALL

OPERATING MODES

■ AUTOMATIC DUAL BATTERY OPERATION

■ LOOP START, GROUND START FEATURES

■ SURFACE MOUNT PACKAGE

■ -40 TO +85°C OPERATING RANGE

■ TEST FUNCTION

■ NO EXTERNAL COMPONENTS FOR POWER

DISSIPATION

DESCRIPTION

The STLC30R81 is a low voltage SLIC suitable for

short loop applications. All the BORSHT and test

functions (phone detection, loop-back, short circuit

detection) are integrated in this device. It provides

three ringing modes: Sinusoidal, Trapezoidal and

PWM waveform.

In sinusoidal ringing modes, depending on the CO-

DEC’s functionalities and characteristics Rxin+/Rxin-

or Rg+/Rg- paths can be selected. When CODEC

can manage low frequency signals Rxin+/ Rxin- will

be used.

This device can also limit the peak current during On-

Hook/Off-Hook transition and Ring-trip detection.

The device is based on BCD3S 90V technology and

it can work at 3.3V power supply.

The TQFP44 Package with SLUG increases the

SLIC performance in terms of power dissipation mak-

ing unnecessary the use of any external power com-

ponents.

TQFP44 (10 x 10) with slug

ORDERING NUMBER: STLC30R81

INTEGRATED RINGING SLIC

FOR SHORT LOOP APPLICATIONS

BLOCK DIAGRAM

BGND

ILTF

D2

D1

D0

RS

ZAC

IREF

VCC

RING

D01TL518

DET

GDK/AL

CAC

AGND

CREV

CSVR

LOGIC

INTERFACE

&

DECODER

SUPERVISION

COMMANDS

LINE STATUS

ILT

LINE

INTERFACE

ILL

TIP

RLPBK

CRT

REFERENCE

&

BIAS SWITCHING

DC

PROCESSOR

+

AC+

DC

AC

DC

RLIM

RTH

ZB

RXin-

RXin+

RG-

RG+

TX

VDD

RD

AC

PROCESSOR

ZAC1

D3

CS

RES

Rev. 2

类似零件编号 - STLC30R81

制造商	部件名	数据表	功能描述
STMicroelectronics	STLC30R80	172Kb / 13P	INTEGRATED RINGING SLIC FOR SHORT LOOP APPLICATIONS Nov-2001

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