1. 一般的描述

LT8311X是一款低成本的高性能USB中繼器，通過USB線纜提供信號傳輸擴展，符合USB2.0規范，支持USB2.0、USB1.1和USB1.0設備連接。最大延伸長度可達20米，從位置的USB集線器/主機通過USB電纜。它消除了USB2.0規格5米距離的限制。只有2條線用于兩個LT8311X芯片之間的數據傳輸。內部均衡可以改變不同的寄存器設置。

2. 特性

?延伸長度可達20米

?支持usb2.0高速和usb1.1(低速和全速)

?支持熱插拔

?內部上拉和下拉電阻

?I2C控制模式均衡

?單路3.3V電源

?20pin TSSOP RoHS封裝和qfn16 RoHS封裝

?工作溫度范圍-40°C至85°C

?2線數據傳輸

?ESD:HBM到2KV

3.應用程序

?臺式機和筆記本電腦，擴展塢

?服務器和工作站

?數據存儲系統

?高密度介質和智能監控系統

1. General Description

LT8311X is a low cost high performance USB repeater that provides signal transferring extension over USB cable, compliant with USB2.0 specification, supports USB2.0, USB1.1 and USB1.0 device connection. The maximum extension length can be up to 20 meters from the location of USB hub/host over USB cable. It eliminates the 5 meters distance limitation of USB2.0 Specification. There are only 2 lines used for data transferring between two LT8311X chips. Internal equalization can be changed by different register settings.

2. Features

? Extension length up to 20 meters

? Support USB 2.0 high-speed and USB 1.1(low-speed and full-speed)

? Support hot plug

? Internal pull-up and pull-down resistor

? I2C control mode for equalization

? Single 3.3V power supply

? 20pin TSSOP  RoHS package  and QFN 16 RoHS package

? -40°C to 85°C operating temperature range

? 2 lines data transferring

? ESD:HBM to 2KV

3. APPLICATIONS

? Desktop and laptop computers, docking stations

? Servers and workstations

? Data storage systems

? High density media and intelligent monitoring system

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