廬
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
REL0 REL1 RELR RGND
TQFP44 (10 x 10)
ORDERING NUMBER:
STLC3080
-40 TO +85擄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.
CRT RT1 RT2 PCD
MODE
D0
D1
D2
R0
R1
DET
GDK/AL
CSIN
CSOUT
CKRING
RES
TTXIN
ZB
TX
RX
AC
PROCESSOR
LOGIC
INTERFACE
&
DECODER
LINE STATUS
ILT
SUPERVISION
COMMANDS
ILL
LINE
INTERFACE
TIP
RING
AC+
DC
AC
DC
BGND
VREG
+
ILTF
REFERENCE
&
BIAS SWITCHING
DC
PROCESSOR
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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