XRT83VSH38 8-Channel T1/E1/J1 Short-Haul Line Interface Unit

The XRT83VSH38 is a fully integrated 8-channel short-haul line interface unit (LIU) that operates from a 1.8V and a 3.3V power supply. Using internal termination, the LIU provides one bill of materials to operate in T1, E1, or J1 mode with minimum external components. The LIU features are programmed through a standard parallel or serial microprocessor interface. 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.

技术特性
  • Fully integrated eight 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 75Ω (E1), 100Ω (T1), 110Ω (J1), and 120Ω (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 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
  • 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
  • Supports gapped clocks for mapper/multiplexer applications
  • 1.8V Digital Inner Core
  • 3.3V I/O Supply and Analog Inner Core
  • 225 ball BGA package
  • -40°C to +85°C Temperature Range
  • Pb-Free, RoHS Compliant Versions Offered
技术指标
频道数量 1
数据传输速率(s) T1/E1/J1
Clk Rec Yes
短途/长途 S
温度.范围 Ind.
OpPwr Sup/Max Cur 3.3V ±5%, TBD
封装 TQFP-64
应用领域 APPLICATION
  • T1 Digital Cross-Connects (DSX-1)
  • ISDN Primary Rate Interface
  • CSU/DSU E1/T1/J1 Interface
  • T1/E1/J1 LAN/WAN Routers
  • Public switching Systems and PBX Interfaces
  • T1/E1/J1 Multiplexer and Channel Banks
订购信息 Ordering Information
器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
XRT83VSH38IB-F -40 85 Active
XRT83VSH38IB -40 85 Active

 

应用技术支持与电子电路设计开发资源下载 版本信息 大小
XRT83VSH38 数据资料DataSheet下载:pdf Rev.V2 2 页