STLC3080 Datasheet, PDF (1/23 Pages) STMicroelectronics – SUBSCRIBER LINE INTERFACE CIRCUIT

®
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
BLOCK DIAGRAM
TQFP44 (10 x 10)
ORDERING NUMBER: STLC3080
-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.
REL0 REL1 RELR RGND
CRT RT1 RT2 PCD
MODE
D0
D1
D2
R0
R1
DET
GDK/AL
CSIN
CSOUT
CKRING
RES
TTXIN
ZB
TX
RX
LINE STATUS
LOGIC
INTERFACE
&
DECODER
COMMANDS
SUPERVISION
ILT
LINE
ILL
INTERFACE
AC
PROCESSOR
REFERENCE
&
BIAS SWITCHING
AC+
DC
AC ₊
DC
DC
PROCESSOR
TIP
RING
BGND
VREG
ILTF
RLIM
RTH
ZAC1 ZAC RS CAC IREF V_CC V_DD AGND CREV CSVR VBAT BASE RDC ^D98TL305B
December 1999
This is preliminary information on a new product now in development or undergoing evaluation.
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