1. General Description
LT8311EX is a low cost high performance USB repeater that supports signal transferring extension over cat5/5e/6 cable, compliant with USB2.0 specification. The extension length can be up to 120 meters over CAT6 cable. It eliminates the 5 meters distance limitation of USB2.0 specification. There are four lines used for signal transferring extension between two LT8311EX chips. Internal equalization settings can be changed through I2C interface for different extension lengths.
2. Features
• Extension length up to 120 meters
• Support USB 2.0 high-speed and USB 1.1(low-speed and full-speed)
• Support hot plugg
• Internal pull-up and pull-down resistor
• Pin control and I2C control mode for equalization
• Single 3.3V power supply
• 20-pin TSSOP RoHS package
• -40 to 85℃ operating temperature range
• ESD:HBM to 2KV
3.APPLICATIONS
• Desktop and laptop computers, docking stations
• Servers and workstations
• Data storage systems
1. 概述
LT8311EX 是一款低成本高性能 USB 中继器，支持通过 cat5/5e/6 电缆进行信号传输扩展，符合 USB2.0 规范。通过 CAT120 电缆，延长长度可达 6 米。它消除了USB5.2规范的0米距离限制。有四条线路用于两个LT8311EX芯片之间的信号传输扩展。内部均衡设置可通过 I2C 接口针对不同的扩展长度进行更改。
2. 特点
• 延伸长度可达120米
• 支持USB 2.0高速和USB 1.1（低速和全速）
• 支持热插拔• 内部上拉和下拉电阻
• 引脚控制和I2C控制模式用于均衡• 单3.3V电源
• 20引脚TSSOP RoHS封装
• -40至85°C工作温度范围
• ESD：HBM至2KV
3.应用
• 台式机和笔记本电脑、扩展坞
• 服务器和工作站
• 数据存储系统
