LVDS vs PECL

PECL is a diehard NASA revival of the discredited ECL technology from the 1990's. Some links:

The Google search: https://www.google.com/search?q=LVDS+vs.+PECL

A nearly perfect comparison of the characteristics of all kinds of driver technology: https://www.vectron.com/products/literature_library/Signal_Types_and_Terminations.pdf