Question: how long can lvds cable be?
Answer: The maximum distance boundary for 100 Mbps is estimated from 6 dB of attenuation of a 100-MHz sine wave. Using the attenuation equation, -6 dB occurs at a cable length of 30.3 m, and testing is then limited to a maximum of 40 meters with intermediate data points at 3 m, 10 m, and 20 m.