Guide to AM335x and AM43xx USB layout

The primary source of energy in a USB 2.0 design is the differential signal pair, DATA+ (DP), and DATA- (DM). Depending on the type of USB connection, this differential interface can operate at frequencies as high as 240MHz, which can present a significant noise source for board designs that do not take steps to ensure signal isolation and overall signal quality.

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Originally published by Texas Instruments Inc. at www.ti.com as "AM335x and AM43xx USB Layout Guidelines".