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STLC3080
SUBSCRIBER LINE INTERFACE CIRCUIT
gerTpra'
STLC3080
SUBSCRIBER LINE INTERFACE CIRCUIT
n MONOCHIP SLIC SUITABLE FOR PUBLIC
APPLICATIONS
n IMPLEMENTES ALL KEY FEATURES OF
THE BORSHT FUNCTION
'' DUAL CONTROL MODE CONFIGURATION:
SLAVE MODE OR AUTOMATIC ACTIVATION
n SOFT BATTERY REVERSAL WITH PRO-
GRAMMABLE TRANSITION TIME
I: ON HOOK TRANSMISSION
n LOOP START/GROUND START FEATURE
WITH PROGR. THRESHOLD
n LOW POWER DISSIPATION IN ALL OPER-
ATING MODES
n AUTOMATIC DUAL BATTERY OPERATION
n INTEGRATED RING TRIP DETECTION WITH
AUTOMATIC AND SYNCRONISED RING
DISCONNECTION
n METERING PULSE INJECTION
n SURFACE MOUNT PACKAGE
u THREE RELAY DRIVERS FOR RING AND
TESTING
BLOCK DIAGRAM
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TQFP44 (10 x 10)
ORDERING NUMBER: STLC3080
n -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-
RELO REL1 RELR RGND
D2 LOGIC
R0 INTERFACE
& COMMANDS
R1 DECODER
GWIAT.
CKRING
LINE STATUS
CRT RT1 RT2 PCD
SUPERVISION LINE
ILL INTERFACE RING
PROCESSOR
ZAC1 ZAC RS CAC IREF Vcc
REFERENCE
BIAS SWITCHING
PROC ESSOR
VDD AGND CREV CSVR VBAT BASE RDC
D98TL305B
October 2001
STLC3080
PIN CONNECTION
I: 2 m D
/r41r31r21r11r01'r912:r71alr51r41N
(ME 1 C) 33 :[CREV
08W L 2 32 [l IREF
DO I: 3 31 Cl RLIM
DI L 4 30 [l RTH
D2 L 5 29 I] AGND
R0 L 6 28 J RT1
RI L 7 27 J RT2
Rits L 8 26 Cl ILTF
VDD L 9 25 J RDC
VCC L 10 24 J CAC
CRT L 11 23 [l TTXIN
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iifi'i;js'iir,s,'h";eiciift D98TL306A
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
VBAT Battery voltage -80 + Vcc to +0.4 V
-80 + VREL to + 0.4 V
Vcc Positive supply voltage -0.4 to +7 V
VDD Control Interface Supply Voltage -0.4 to +7 V
IREL Current into relay drivers 80 mA
A/R/BGND AGND respect BGND respect RGND -2 to +2 V
OPERATING RANGE
Symbol Parameter Value Unit
TopT Operating temperature range -40 to +85 ''C
Vcc Positive supply voltage 4.75 to 5.25 V
VDD Control Interface Supply Voltage 3 to 5.25 V
VBAT Battery voltage -73 to -15 V
if VREL > Vcc -78 + VREL to -15 V
A/R/BGND AGND respect BGND respect RGND -0.3 to +0.3 V
PD (70) Max. power dissipation @ Tamb = 70''C 1.1 W
PD(85) Max. power dissipation @ Tamb = 85°C 0.9 W
THERMAL DATA
Symbol Parameter Value Unit
Rm Hamlo Thermal resistance Junction to Ambient Typ. 60 "C/W
