ZHCSJ33F December 2015 – May 2019 DRA745 , DRA746 , DRA750 , DRA756
PRODUCTION DATA.
Place the USB PHY as close as possible to the USB 2.0 connector. The signal swing during high-speed operation on the DP/DM lines is relatively small (400 mV ± 10%), so any differential noise picked up on the twisted pair can affect the received signal. When the DP/DM traces do not have any shielding, the traces tend to behave like an antenna and picks up noise generated by the surrounding components in the environment. To minimize the effect of this behavior:
Figure 8-35 USB PHY Connector and Cable Connector