Optimizing Laptop Docking Station Designs Using Switches Paul

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Optimizing Laptop Docking Station Designs Using Switches Paul

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Application Brief
Optimizing Laptop Docking Station Designs Using Switches
Paul
capability common feature most laptops/notebooks docking stations. Some laptop designers both laptop docking stations, only been used time. Using switches switch signal between RJ-45 connectors laptops, docking stations, will share devices 10/100/1000 base-T Ethernet Physical Layer (PHY), integrated Ethernet Media Controller (MAC) chips. Thus, will reduce redundancy cost PHY, other components. Pericom switch family, including PI3L100, PI5L100, PI5L200 PI3L301, provide variety choices ideally suited sharing laptop docking station applications. This approach also suitable application with more RJ-45 connectors.
Pericom switches designed with flat RON, high bandwidth suitable high speed PHY. typical Pericom switch located Laptop motherboard. devices switch Ethernet differential pair signals between 100/1000 Base-T chip, RJ-45 connectors Laptop docking stations. switch application, isolation-magnetic requested each RJ-45 connector offset voltage from RJ-45, protect switch from damage higher-voltage surge caused ethernet lines. IEEE standards require isolation magnetic RJ45. insertion laptop into docking station will detected, firmware will automatically switch from internal RJ-45 RJ-45 docking station. illustration below.
Notebook Motherboard
Connector Isolation Magnet
RJ-45
10/100/1000 Base
Pericom Switch
Detection Docking
Connector
Isolation Magnet
Docking Station
Connector
RJ-45
Laptop Docking Station Design using Switch
AB41 06/12/02

Optimizing Laptop Docking Station Designs Using Switches Paul

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