STLC3080

® 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 PROGRAMMABLE TRANSITION TIME ON HOOK TRANSMISSION LOOP START/GROUND START FEATURE WITH PROGR. THRESHOLD LOW POWER DISSIPATION IN ALL OPERATING 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°C OPERATING RANGE DESCRIPTION The STLC3080 is a SLIC device suitable for a wide range of applications: public (CO), transmission (DLC) and private (PABX). The SLIC provides the standard battery feeding with full programmability of the DC characteristic. In particular two external resistors allow to set the limiting current value (up to 50mA) and the value of the resistive feeding when not in constant current region. 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 VCC VDD AGND CREV CSVR VBAT BASE RDC D98TL305B December 1999 Thi...