描述 Description

The SN55LVDS31, SN65LVDS31, SN65LVDS3487, and SN65LVDS9638 devices are differential line drivers that implement the electrical characteristics of low-voltage differential signaling (LVDS). This signaling technique lowers the output voltage levels of 5-V differential standard levels (such as TIA/EIA-422B) to reduce the power, increase the switching speeds, and allow operation with a 3.3-V supply rail. Any of the four current-mode drivers will deliver a minimum differential output voltage magnitude of 247 mV into a 100-? load when enabled.

特性 Features

? Meet or Exceed the Requirements of ANSI TIA/EIA-644 Standard
? Low-Voltage Differential Signaling With Typical Output Voltage of 350 mV and 100-? Load
? Typical Output Voltage Rise and Fall Times of 500 ps (400 Mbps)
? Typical Propagation Delay Times of 1.7 ns
? Operate From a Single 3.3-V Supply
? Power Dissipation 25 mW Typical Per Driver at 200 MHz
? Driver at High-Impedance When Disabled or With VCC = 0
? Bus-Terminal ESD Protection Exceeds 8 kV
? Low-Voltage TTL (LVTTL) Logic Input Levels
? Pin Compatible With AM26LS31, MC3487, and μA9638
? Cold Sparing for Space and High-Reliability Applications Requiring Redundancy