Le79272 SLIC Dual Subscriber Line Interface Circuit Next Generation Carrier Chipset (NGCC) APPLICATIONS ORDERING INFORMATION An Le79238 or ZL79258 SLAC device must be used with this part. Cost-effective voice solution for long or short loops providing POTS and integrated test capabilities 1 2 Device Package Type (Green) Packing IVD Le79272PQC 48-Pin QFN Tray CO, DLC 1. The green package meets RoHS Directive 2002/95/EC of the Voice-enabled DSLAM European Council to minimize the environmental impact of electrical equipment. PBX/KTS MDU, MSAP, MSAN 2. For delivery using a tape and reel packing system, add a suffix to the OPN (Ordering Part Number) when placing an order. FEATURES DESCRIPTION Designed to minimize POTS transients, optimizing CRC performance for triple play applications The Le79272 Next Generation Dual Subscriber Line Interface Circuit (SLIC) device, in combination with an NGCC SLAC Best-in-class GR-844 equivalent testing device, implements a DSL friendly, high density universal Fully validated test primitives and host routines telephone line interface. This enables the design of a low cost, Guaranteed performance parameters high performance, fully software programmable line interface Optimized for best-in-class density with worldwide applicability. All AC, DC, and signaling Monitor of two-wire interface voltages and currents parameters are programmable. Additionally, the NGCC has supports: integrated self-test and line-test capabilities to resolve faults to Voice transmission the line or line circuit. Internal ringing generation RELATED LITERATURE Programmable DC feed characteristics 126583 NGCC Hardware Design Guide Current limited and independent of battery 128623 NGCC Designers Guide Selectable off-hook and ground-key thresholds Subscriber line diagnostics 081555 Le79271 NGSLIC Device Data Sheet Leakage and loop resistance 081193 Le79238 Octal NGSLAC Device Data Sheet Line capacitance and bell capacitance 136868 ZL79258 Octal External Ringing NGSLAC Foreign voltage sensing Device Data Sheet Power cross and fault detection 081567 Le79124 NGVCP Device Data Sheet Supports 85 Vrms internal ringing Supports balanced and unbalanced ringing BLOCK DIAGRAM (1 CHANNEL) 3.3 V and battery supplies RCVN Supports two negative and one positive battery Dual battery operation for system power saving - - AD + DCA + Automatic battery switching IA sense A Power A Gain Intelligent thermal management Amplifier Amplifier VREF TLD Compatible with inexpensive protection networks Metering capable RCVP 12 kHz and 16 kHz - Smooth polarity reversal - BD + DCB + IB sense Tip-open mode supports ground start signaling B Gain B Power Amplifier I IMT (IA - IB) Amplifier Integrated test load switch IMT 800 I 5 REN with DC offset IA A IA 800 I B IB FEATURES WITH LE79124 NGVCP IB 800 72 channel call aggregation GR-844 equivalent line testing VBP VBH VBL BGND Document ID 138884 Date: June 15, 2012 Version: 4 Protected Document Microsemi Corporation CONFIDENTIALLe79272 Preliminary Data Sheet Table of Contents Applications .1 Features 1 Features With Le79124 NGVCP .1 Ordering Information 1 Description 1 Related Literature 1 Block Diagram (1 Channel) 1 Product Description 3 Next Generation VCP Features 4 Features of the NGCC .6 NGCC with Next Generation VCP Device 7 NGCC Block Diagram - Eight Channel Line Card Example .7 Connection Diagram 8 Pin Descriptions .9 Electrical Characteristics .10 Absolute Maximum Ratings 10 Thermal Resistance 10 Electrical Operating Ranges .11 Specifications 11 Power Dissipation .11 Supply Currents .12 DC Specifications .13 Transmission Specifications .15 Test Switch Specifications .16 Thermal Shutdown Fault Indications .16 Data Friendly Transient Specifications .17 Operating Modes 18 Operating Mode Descriptions 19 Timing Specifications 20 Waveforms .20 Physical Dimensions .21 48-Pin QFN 21 Revision History 21 Version 1 to 2 21 Version 2 to 3 21 Version 3 to 4 21 2 Microsemi Corporation CONFIDENTIAL