XRT83VSH314IB-SAM MaxLinear

XRT83VSH314 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT SEPTEMBER 2006 REV. 1.0.1 for external timing (8kHz, 1.544Mhz, 2.048Mhz, GENERAL DESCRIPTION nxT1/J1, nxE1). The XRT83VSH314 is a fully integrated 14-channel Additional features include RLOS, a 16-bit LCV short-haul line interface unit (LIU) that operates from counter for each channel, AIS, QRSS/PRBS a 1.8V Inner Core and 3.3V I/O power supplies. generation/detection, TAOS, DMO, and diagnostic Using internal termination, the LIU provides one bill of loopback modes. materials to operate in T1, E1, or J1 mode independently on a per channel basis with minimum APPLICATIONS external components. The LIU features are T1 Digital Cross Connects (DSX-1) programmed through a standard microprocessor ISDN Primary Rate Interface interface. EXARs LIU has patented high impedance circuits that allow the transmitter outputs and receiver CSU/DSU E1/T1/J1 Interface inputs to be high impedance when experiencing a T1/E1/J1 LAN/WAN Routers power failure or when the LIU is powered off. Key Public Switching Systems and PBX Interfaces design features within the LIU optimize 1:1 or 1+1 redundancy and non-intrusive monitoring applications T1/E1/J1 Multiplexer and Channel Banks to ensure reliability without using relays. Integrated Multi-Service Access Platforms (IMAPs) The on-chip clock synthesizer generates T1/E1/J1 Integrated Access Devices (IADs) clock rates from a selectable external clock frequency and has five output clock references that can be used Inverse Multiplexing for ATM (IMA) Wireless Base Stations FIGURE 1. BLOCK DIAGRAM OF THE XRT83VSH314 1 of 14 Channels Driver DMO Monitor TCLK n Tx Pulse TTIP n Tx/Rx Jitter Timing Line HDB3/B8ZS Shaper & TPOS n Attenuator Control Driver Encoder Pattern Gen TRING n TNEG n Remote Digital Analog TxON QRSS Loopback Loopback Loopback Generation & Detection RPOS n Peak RTIP n HDB3/B8ZS Tx/Rx Jitter Clock & Data RCLK n Detector Decoder Attenuator Recovery & Slicer RRING n RNEG n RLOS RCLKOUT AIS & LOS Detector RxON RxTSEL 8kHzOUT ICT MCLKE1out TEST Programmable Master Microprocessor MCLKT1out Test Clock Synthesizer Interface ATP TIP MCLKE1Nout ATP RING MCLKT1Nout Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com TMS TCK TDI TDO INT RDY TA CS ALE TS RD WE WR R/W uPCLK uPTS2 uPTS1 uPTS0 ADDR 10:0 DATA 7:0 Reset CS 5:1 MCLKinXRT83VSH314 14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT REV. 1.0.1 FEATURES Fully integrated 14-Channel short haul transceivers for T1/J1 (1.544MHz) and E1 (2.048MHz) applications T1/E1/J1 short haul and clock rate are per port selectable through software without changing components Internal Impedance matching on both receive and transmit for 75 (E1), 100 (T1), 110 (J1), and 120 (E1) applications are per port selectable through software without changing components Power down on a per channel basis with independent receive and transmit selection Five pre-programmed transmit pulse settings for T1 short haul applications per channel User programable Arbitrary Pulse mode On-Chip transmit short-circuit protection and limiting protects line drivers from damage on a per channel basis Selectable Crystal-Less digital jitter attenuators (JA) with 32-Bit or 64-Bit FIFO for the receive or transmit path Driver failure monitor output (DMO) alerts of possible system or external component problems Transmit outputs and receive inputs may beHig impedance for protection or redundancy applications on a per channel basis Support for automatic protection switching 1:1 and 1+1 protection without relays Receive monitor mode handles 0 to 6dB resistive attenuation (flat loss) along with 0 to 6dB cable loss for both T1 and E1 Loss of signal (RLOS) according to ITU-T G.775/ETS300233 (E1) and ANSI T1.403 (T1/J1) Programmable data stream muting upon RLOS detection On-Chip HDB3/B8ZS encoder/decoder with an internal 16-bit LCV counter for each channel On-Chip digital clock recovery circuit for high input jitter tolerance QRSS/PRBS pattern generator and detection for testing and monitoring Error and bipolar violation insertion and detection Transmit all ones (TAOS) Generators and Detectors Supports local analog, remote, digital, and dual loopback modes 1.8V Digital Core 3.3V I/O and Analog Core 304-Pin BGA package -40C to +85C Temperature Range Supports gapped clocks for mapper/multiplexer applications PRODUCT ORDERING INFORMATION PRODUCT NUMBER PACKAGE TYPE OPERATING TEMPERATURE RANGE XRT83VSH314IB 304 Lead PBGA -40C to +85C 2