STLC30R80 Datasheet | STMicroelectronics

® INTEGRATED RINGING SLIC FOR SHORT LOOP APPLICATIONS MONOCHIP SLIC SUITABLE FOR SHORT LOOP APPLICATIONS IMPLEMENTES ALL KEY Features OF THE BORSHT FUNCTION INTEGRATED RINGING SOFT BATTERY REVERSAL WITH PROGRAMMABLE TRANSITION TIME ON HOOK TRANSMISSION LOW POWER DISSIPATION IN ALL OPERATING MODES AUTOMATIC DUAL BATTERY OPERATION INTEGRATED RING TRIP DETECTION METERING PULSE INJECTION LOOP START, GROUND START Features SURFACE MOUNT PACKAGE -40 TO +85°C OPERATING RANGE DESCRIPTION The STLC30R80 is a SLIC device suitable for short loop applications. The SLIC provides the BLOCK DIAGRAM D2 D1 D0 TQFP44 (10 x 10) ORDERING NUMBER: STLC30R80 generation of the ringing signal and 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 50m A) and the value of the resistive feeding when not in constant current region. CRT RT1 RT2 DET GDK/AL CSIN CSOUT RES SW LOGIC INTERFACE & DECODER LINE STATUS ILT SUPERVISION MANDS ILL LINE INTERFACE TIP RING AC+ DC AC DC TTXIN ZB TX RX AC PROCESSOR REFERENCE & BIAS SWITCHING DC PROCESSOR BGND + VREG ILTF RLIM RTH ZAC1 IREF AGND CREV CSVR VBAT BASE D99TL431AMOD November 2001 1/13 PIN CONNECTION GDK/AL AGND AGND AGND BGND VREG 44 43 42 41 40 39 38 37 36 35 34 CSOUT CSIN D0 D1 D2 N.C. N.C. RES VDD VCC CRT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 SW. VBAT TX ZB RS ZAC ZAC1 N.C. N.C. AGND...