MAX4890ETJ+T

10/100/1000 Base-T以太网局域网交换机, 3 V至3.6 V, TQFN-32

The from Products is a 10/100/1000 base-T Ethernet LAN switch in 32 pin TQFN package. This high speed analogue switch meets the needs of 10/100/1000 Base-T applications. It switches 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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Single +3V to +3.6V power supply voltage, crosstalk of -45dB at 1MHz < f < 30MHz

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

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

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Ultra low on-capacitance of 6.5pF typ, insertion loss of 0.6dB RL = 100 ohm, 1MHz < f < 100MHz

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Low < 200ps bit to bit skew, 0.01ohm on-resistance flatness V+ = 3V, IA_ = -40mA, VA_ = 1.5V, 2.7V

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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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Bidirectional 8 to 16 multiplexer/demultiplexer

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1.5ohm maximum on-resistance match between channels at TA = +25°C