Figure 4. Effect of different filters on signal waveforms
We examined the effect of noise filters on Thunderbolt™3 signals.
When a conventional noise filter was used, the eye pattern of the signal collapsed and did not satisfy the standard.
When the newly developed NFP0QHB542HS2 common mode choke coil was used, the eye pattern was maintained at a level that satisfied the standard.
This showed that when using noise filters with Thunderbolt™3, conventional filters should not be used, and instead products that support higher frequency signals should be selected.