Le58QL031

™ Le58QL02/021/031 Quad Low Voltage Subscriber Line Audio-Processing Circuit VE580 Series APPLICATIONS „ Codec function on telephone switch line cards ORDERING INFORMATION Device Le58QL02FJC Le58QL021FJC Le58QL021BVC Le58QL031DJC 1. Package (Green)1 44-pin PLCC 44-pin PLCC 44-pin TQFP 32-pin PLCC Tube Tube Tray Tube Packing2 FEATURES „ Low-power, 3.3 V CMOS technology with 5-V tolerant digital inputs „ Software and coefficient compatible to the Le79Q02/ 021/031 QSLAC™ device „ Performs the functions of four codec/filters „ Software programmable: — — — — — — — — SLIC device input impedance Transhybrid balance Transmit and receive gains Equalization (frequency response) Digital I/O pins Programmable debouncing on one input Time slot assigner Programmable clock slot and PCM transmit clock edge options The green package meets RoHS Directive 2002/95/EC of the European Council to minimize the environmental impact of electrical equipment. For delivery using a tape and reel packing system, add a "T" suffix to the OPN (Ordering Part Number) when placing an order. 2. DESCRIPTION The Le58QL02/021/031 Quad Low Voltage Subscriber Line Audio-Processing Circuit (QLSLAC™) devices integrate the key functions of analog line cards into high-performance, veryprogrammable, four-channel codec-filter devices. The QLSLAC devices are based on the proven design of Legerity’s reliable SLAC™ device families. The advanced architecture of the QLSLAC devices implements four independent channels and...