MAX9157EHJ+

The MAX9157EHJ+ is a quad bus LVDS (BLVDS) transceiver in 32 pin TQFP package. This transceiver is used with heavily loaded, half duplex multipoint buses. Small package and flow through pin-out allow the transceiver to be placed near the connector for shortest possible stub length. The MAX9157 drives LVDS levels into 27ohm load (double terminated, heavily loaded LVDS bus) at up to 200Mbps. An input fail-safe circuit ensures receiver output is high when differential inputs are open or undriven and shorted or undriven and terminated. The differential input has 52mV hysteresis for greater immunity to bus noise and reflections. The MAX9157 operates from a single 3.3V supply and consumes 80.9mA supply current with drivers enabled and 22.7mA with drivers disabled. It is used in add/drop muxes, digital cross connects, network switches/routers, cellular phone base stations, DSLAM and multipoint buses.

• Supply voltage range is 3V to 3.6V
• Operating temperature range from -40°C to 85°C
• 52mV LVDS input hysteresis
• 1ns (minimum) transition time (0% to 100%) minimizes reflections
• Maximum bus load capacitance of 7.2pF
• Glitch free power-up and power-down
• Hot swappable, high impedance I/O with VCC = 0 or open
• Rise time of 1.07ns and fall time of 1.11ns
• Offset voltage of 1.302V

Applications

Communications & Networking

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