Product Details
GENERAL DESCRIPTION The XRT83SL28 is a fully integrated 8-channel E1 short-haul LIU which optimizes system cost and performance by offering key design features. The XRT83SL28 operates from a single 3.3V power supply. The LIU features are programmed through a standard serial microprocessor interface or hardware control. EXAR’s LIU has patented high impedance circuits that allow the transmitter outputs and receiver inputs to be high impedance when experiencing a power failure or when the LIU is powered off. Key design features within the LIU optimize 1:1 or 1+1 redundancy and non-intrusive monitoring applications to ensure reliability without using relays. Additional features include TAOS for transmit and receive, RLOS, LCV, AIS, DMO, and diagnostic loopback modes. FEATURES ? Fully integrated 8-Channel short haul transceivers for E1 (2.048MHz) applications. ? Internal Impedance matching on both receive and transmit for 75? (E1) or 120? (E1) applications. ? Tri-State on a per channel basis for the transmit selection. ? On-Chip transmit short-circuit protection and limiting protects line drivers from damage on a per channel basis. ? Independent Crystal-Less digital jitter attenuators (JA) with 32-Bit or 64-Bit FIFO for the receive or transmit paths ? Driver failure monitor output (DMO) alerts of possible system or external component problems. ? Transmit outputs and receive inputs may be "High" impedance for protection or redundancy applications on a per channel basis. ? Support for automatic protection switching. ? 1:1 and 1+1 protection without relays. ? RLOS/AIS according to ITU-T G.775 or ETSI-300-233. ? On-Chip HDB3 encoder/decoder for each channel. ? On-Chip digital clock recovery circuit for high input jitter tolerance. ? Line code error and bipolar violation detection. ? Transmit all ones (TAOS) for the Transmit and Receive Outputs. ? Supports local analog, remote, and digital loopback modes. ? Supports gapped clocks for mapper/multiplexer applications. ? Low Power dissipation ? Single 3.3V supply operation (3V to 5V I/O tolerant). ? 144-Pin TQFP package ? -40°C to +85°C Temperature Range APPLICATIONS ? 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 |
Product Description
| Type# | Description |
| ANSC PART# | ANSC- XRT83SL28IV |
| Part# | XRT83SL28IV |
| Type： | Integrated Circuits |
| Manufactor | Original |
| DC | new |
| Part Status | Active |
| Product packaging | QFP |
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