HC5519 Semiconductor ADVANCE INFORMATION SLIC Subscriber Line Interface Circuit January 1997 Features Description • Complete A-Law Codec, Filter, and SLIC Functions with Serial Digital Control and Status Monitoring The HC5519 SLIC is designed to meet the technical requirements of the China Telecommunications network. It provides many of the BORSCHT functions associated with a Central Office line circuit. • 30mA Current Limit on Normal or Reverse Loop Feed • Constant Voltage (Resistance) Feed on Long Loops The HC5519 consists of an A-Law Codec/Filter, a 2-wire interface circuit, an impedance control circuit, a ringing control circuit, a power management circuit, and a serial control interface circuit which is used to program and monitor the operation of the device. • On-Hook Transmission • Switch Hook Detection • User Selectable 2-Wire Complex Impedance The integration of the line interface and coder/decoder functions into a 80 pin MQFP surface mount package and standard value surface mount components avoids the need for costly hybrid packaging techniques and offers the superior reliability of an integrated solution for dense circuit board layouts. • User Selectable Receive Gain • User Selectable Transmit Gain • Ringing, Test-In, and Test-Out Relay Drivers • Zero Crossing Ring Trip Detection and Ring Relay Release • Thermal Shutdown Protection • Meets CCITT/China Transmission Requirements The SLIC combines Harris’ patented Bonded Wafer Dielectrically Isolated fabrication techniques with a state of the art CMOS process to produce the world’s most compact line circuit signal processing solution. Ordering Information Applications PART NUMBER • CO/PABX Line Circuits Pinout HC5519CQ TEMP. RANGE (oC) 0 to 70 PACKAGE 80 Ld MQFP PKG. NO. Q80.14x20 Block Diagram HC5519 (MQFP) TOP VIEW DR VFXI VFRO DX RX TX TX4W RN KZO 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 BCLKR BCLKX MCLKX TSX FSR FSX PROGRAMMING INTERFACE A/D AND D/A PCM INTERFACE CO CI CS SUP TEST CONTROL STATUS AND CONTROL AGND BGND RGND VBAT VCC VEE BIAS BATTERY REFERENCE GNDD GNDA CP 2-WIRE INTERFACE TIP TIPSEN RINGSEN RING TA TB RING CONTROL RD RBH RBL CRTD POWER MANAGEMENT RPSB RPSR RPST RPSG RDC CDC 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © Harris Corporation 1997 4-1 File Number 4232