MAX9129

` Drive LVDS Levels into a 27 Load
` 1ns (0% to 100%) Minimum Transition Time Reduces Reflections
` Guaranteed 200Mbps (100MHz) Data Rate
` Enable Pins for High-Impedance Output
` High-Impedance Outputs when Powered Off
` Glitch-Free Power-Up and Power-Down
` Hot Swappable
` Flow-Through Pinout
` Available in Tiny QFN Package (50% Smaller than TSSOP)
` Single +3.3V Supply

The MAX9129 is a quad bus low-voltage differential signaling (BLVDS) driver with flow-through pinout. This device is designed to drive a heavily loaded multipoint bus with controlled transition times (1ns 0% to 100% minimum) for reduced reflections. The MAX9129 accepts four LVTTL/LVCMOS input levels and translates them to output levels of 250mV to 450mV (standard LVDS levels) into a 27 load at speeds up to 200Mbps (100MHz).

The power-on reset of MAX9129 ensures that all four outputs are disabled and high impedance during power up and power down. The outputs can be set to high impedance by two enable inputs, EN and EN, thus dropping the device to a low-power state of 11mW. The enables are common to all four drivers. The flow-through pinout of MAX9129 simplifies PC board layout and reduces crosstalk by keeping the LVTTL/LVCMOS inputs and BLVDS outputs separated.

The MAX9129 operates from a single +3.3V supply and is specified for operation from -40°C to +85°C. It is available in 16-pin QFN and TSSOP packages. Refer to the MAX9121 data sheet for a quad LVDS line receiver with flow-through pinout.