Coilcraft: Considerations for Selecting Common Mode Filter Chokes for High Speed Data Interfaces

July 17, 2016 // By Kurt Smith, Chris Hare
High speed data interfaces, such as USB 3.x, HDMI 2.0, HDBaseT, DisplayPort, DVI and others, require careful consideration to ensure reliable communication that is free of disruptive EMI. Of the many tools at the designer’s disposal, such as trace routing, termination and component placement, the common mode filter choke remains one of the most powerful. This application note discusses the benefits of using common mode chokes and reviews the performance characteristics associated with their proper application.
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Common mode filter, common mode choke, high speed data filtering, USB, HDMI, IEEE 1394 FireWire, LVDS, HDBaseT