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1. 一般的描述 LT8311EX是一款低成本的高性能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。 延伸长度可达120米以上的CAT6电缆。 它消除了USB2.0规格5米距离的限制。 两个LT8311EX芯片之间有四条线用于信号传输扩展。 内部均衡设置可以通过I2C接口改变不同的扩展长度。 2. 特性 •延伸长度达120米 •支持usb2.0高速和usb1.1(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控制模式均衡 •单路3.3V电源 •20针TSSOP RoHS封装 •-40 ~ 85℃工作温度范围 •ESD:HBM到2KV 3. 应用程序 •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 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
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