XRT73L06

www.DataSheet4U.com XRT73L06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT REV. 1.0.2 OCTOBER 2003 GENERAL DESCRIPTION The XRT73L06 is a six channel fully integrated Line Interface Unit (LIU) for E3/DS3/STS-1 applications. The LIU incorporates 6 independent Receivers and Transmitters in a single 217 Lead BGA package. Each channel of the XRT73L06 can be independently configured to operate in E3 (34.368 MHz), DS3 (44.736 MHz) or STS-1 (51.84 MHz). Each transmitter can be turned off and tri-stated for redundancy support or for conserving power. The XRT73L06’s differential receiver provides high noise interference margin and is able to receive data over 1000 feet of cable or with up to 12 dB of cable attenuation. The XRT73L06 provides a Parallel Microprocessor Interface for programming and control. FIGURE 1. BLOCK DIAGRAM OF THE XRT 73L06 The XRT73L06 supports analog, remote and digital loop-backs. The device also has a built-in Pseudo Random Binary Sequence (PRBS) generator and detector with the ability to insert and detect single bit error for diagnostic purposes. APPLICATIONS E3/DS3 Access Equipment DSLAMs Digital Cross Connect Systems CSU/DSU Equipment Routers Fiber Optic Terminals CS RD WR Addr[7:0] D[7:0] PCLK RDY INT Pmode RESET XRT73L06 XRT73L06 µProcessor Interface CLKOUT_n SFM_en RLOL_n E3Clk DS3Clk STS-Clk/12M MUX Peak Detector Slicer Clock & Data Recovery LOS Detector Clock Synthesizer HDB3/ B3ZS Decoder RxClk_n RxPOS_n RxNEG/LCV_n RTIP_n RRing_...