XRT83SL216

www.DataSheet4U.com xr DECEMBER 2005 PRELIMINARY APPLICATIONS XRT83SL216 REV. P1.0.3 16-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT GENERAL DESCRIPTION The XRT83SL216 is a fully integrated 16-channel E1 short-haul LIU which optimizes system cost and performance by offering key design features. The XRT83SL216 operates from a single 3.3V power supply. The LIU features are programmed through a standard serial microprocessor interface. EXAR’s LIU has patented high impedance circuits that allow the transmitter outputs and receiver inputs to be placed in a high impedance mode when experiencing a power failure or when the LIU is powered off. Additional features include TAOS for transmit and receive, RLOS, LCV, on chip Jitter Attenuator, AIS detector, and diagnostic loopback modes. FIGURE 1. BLOCK DIAGRAM OF THE XRT83SL216 ISDN Primary Rate Interface CSU/DSU E1 Interface E1 LAN/WAN Routers Public Switching Systems and PBX Interfaces E1 Multiplexer and Channel Banks Integrated Multi-Service Access Platforms (IMAPs) Integrated Access Devices (IADs) Inverse Multiplexing for ATM (IMA) Wireless Base Stations 1 of 16 Channels TCLK TPOS TNEG HDB3 Encoder Timing Control Tx Pulse Shaper Line Driver TTIP TRING Analog Loopback Remote Loopback Jitter Attenuator (Rx or Tx) Digital Loopback RCLK RPOS RNEG/LCV HDB3 Decoder Clock & Data Recovery Peak Detector & Slicer Rx Equalizer RTIP RRING RLOS AIS & LOS Detector JASEL0 JASEL1 TDI TMS TCK JTAG Serial Microp...