MAX4890ETJ+T

The MAX4890ETJ+T 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.

• Single +3V to +3.6V power supply voltage, crosstalk of -45dB at 1MHz <lt/> f <lt/> 30MHz
• Operating temperature range from -40°C to 85°C
• Low on-resistance (RON) of 4ohm (typ) and 5.5ohm (max) at TA = +25°C
• Ultra low on-capacitance of 6.5pF (typ), insertion loss of 0.6dB (RL = 100 ohm, 1MHz <lt/> f <lt/> 100MHz)
• Low <lt/> 200ps bit to bit skew, 0.01ohm on-resistance flatness (V+ = 3V, IA_ = -40mA, VA_ = 1.5V, 2.7V)
• 1GHz -3dB bandwidth
• Optimized pin-out for easy transformer and PHY interface
• Low 450µA (max) quiescent current
• Bidirectional 8 to 16 multiplexer/demultiplexer
• 1.5ohm maximum on-resistance match between channels at TA = +25°C
• Board-Level Redundancy Protection; Notebooks and Docking Stations;
• Servers and Routers with Ethernet Interfaces; SONET/SDH Signal Routing; T3/E3 Redundancy Protection

Applications

Signal Processing

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party