>From Intel: www.ti.com/sc/docs/apps/msp/intrface/usb/emitest.pdf Brian From: Amund Westin [mailto:[email protected]] Sent: 20 March 2015 12:10 To: [email protected] Subject: [PSES] USB and radiated emission issues Got some serious radiated emission issues from a USB 2.0 stick (high-speed 480Mb/sec). Spectrum shows the 480MHz way over the EN55022 limit line. We’ve been told to implement a common mode choke between the USB IC and the input/output port. That means on the D+ and D- transmission lines. http://www.coilcraft.com/0805usb.cfm Anybody who have experience with such design? #Amund
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