MAX4891ETJ+

MAXIM INTEGRATED PRODUCTS  MAX4891ETJ+  芯片, 模拟开关

The is a 10/100/1000 base-T Ethernet LAN switch in 32 pin TQFN package. This device switch the signals from two interface transformers and connect signals to a single 10/100/1000 base-T Ethernet PHY, simplifying docking station design and reducing manufacturing costs. It can also route signals from a common interface transformer to two different boards in board redundancy applications. Switch provides an extremely low capacitance and on-resistance to meet Ethernet insertion and return-loss specifications. It is used in notebooks and docking stations, servers and routers with Ethernet interfaces, board level redundancy protection, SONET/SDH signal routing, T3/E3 redundancy protection and video switching.

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Supply voltage range is 3V to 3.6V

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Operating temperature range from -40°C to 85°C

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Low on-resistance RON of 4ohm typ & 5.5ohm max at TA = +25°C

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Ultra-low on-capacitance CON of 6.5pF typ

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Low < 200ps bit to bit skew

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1GHz -3dB bandwidth

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Optimized pin-out for easy transformer and PHY interface

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Low 450µA max quiescent current

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One built-in LED switch for switching indicators to docking station

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Bidirectional 8 to 16 multiplexer/demultiplexer