The SNx5LVDSxx devices are dual- and quad-channel LVDS drivers. These devices are generally used as building blocks for high-speed, point-to-point, data transmission where ground differences are less than 1 V. LVDS drivers and receivers provide high-speed signaling rates that are often implemented with ECL class devices without the ECL power and dual-supply requirements. A common question with any class of driver is how far and how fast can the devices operate. While individual drivers and receivers have specifications that define their inherent switching rate, a communication link will quite often be limited by the impairments introduced by the interconnecting media. #SLLS2618289 shows the typical relationship between signaling rate and distance achievable depends on the quality of the eye pattern at the receiver that is either desired or needed. #SLLS2618289 shows the curves representing 5% and 30% eye closure due to inter-symbol interference (ISI).

24 A WG UTP 96 Ω (PVC Dielectric)

A. This parameter is the percentage of distortion of the unit interval (UI) with a pseudorandom data pattern.

Figure 10-1 Typical Transmission Distance vs Signaling Rate