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*:Not recommend for new design

1. General Description

LT8311 is a low cost high performance USB2.0 repeater that supports signal transferring extension over cat5/5e/6 cables, compliant with USB2.0 specification. The extension length is up to 80 meters over CAT6 cable, 60 meters over CAT5e cable and 50 meters over CAT5 cable. It eliminates the 5 meters distance limitation of USB2.0 specification.
There are 4 lines used for data transferring between two LT8311 chips.  Internal equalization settings can be changed through I2C interface for different extension lengths

2. Features

• Extension length up to 80 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 expanded feature I2C control mode
• Single 3.3V power supply
• 16-pin TSSOP  RoHS package
•  ESD:HBM to 2KV


• Desktop and laptop computers, docking stations
• Servers and workstations
• Data storage systems


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