STLC3080

SUBSCRIBER LINE INTERFACE CIRCUIT

PRELIMINARY DATA

MONOCHIP SLIC SUITABLE FOR PUBLIC

APPLICATIONS

IMPLEMENTES ALL KEY FEATURES OF

THE BORSHT FUNCTION

DUAL CONTROL MODE CONFIGURATION:

SLAVE MODE OR AUTOMATIC ACTIVATION

MODE.

SOFT BATTERY REVERSAL WITH PRO-

GRAMMABLE TRANSITION TIME

ON HOOK TRANSMISSION

LOOP START/GROUND START FEATURE

WITH PROGR. THRESHOLD

LOW POWER DISSIPATION IN ALL OPER-

ATING MODES

AUTOMATIC DUAL BATTERY OPERATION

INTEGRATED RING TRIP DETECTION WITH

AUTOMATIC

AND

SYNCRONISED

RING

DISCONNECTION

METERING PULSE INJECTION

SURFACE MOUNT PACKAGE

THREE RELAY DRIVERS FOR RING AND

TESTING

-40 TO +85

°C OPERATING RANGE

DESCRIPTION

The STLC3080 is a SLIC device suitable for a

wide range of applications: public (CO), transmis-

sion (DLC) and private (PABX). The SLIC pro-

vides the standard battery feeding with full pro-

grammability of the DC characteristic. In particular

two external resistors allow to set the limiting cur-

rent value (up to 50mA) and the value of the re-

sistive feeding when not in constant current re-

gion.

This is preliminary information on a new product now in development or undergoing evaluation.

December 1999

®

BGND

VREG

ILTF

D0

D1

D2

R0

R1

REL1

RS

ZAC

IREF

RING

D98TL305B

DET

GDK/AL

CSIN

CAC

AGND CREV CSVR

RELR

REL0

LOGIC

INTERFACE

&

DECODER

SUPERVISION

COMMANDS

LINE STATUS

ILT

LINE

INTERFACE

ILL

TIP

RT1 RT2

CRT

REFERENCE

&

BIAS SWITCHING

DC

PROCESSOR

+

AC+

DC

AC

DC

RLIM

RTH

ZB

TX

VBAT

BASE

RDC

AC

PROCESSOR

RGND

RX

ZAC1

CSOUT

TTXIN

PCD

RES

MODE

CKRING

BLOCK DIAGRAM

TQFP44 (10 x 10)

ORDERING NUMBER: STLC3080

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