JAJSF70B July 2015 – January 2022 TUSB4020BI-Q1
PRODUCTION DATA
TI recommends to use only one board ground plane in the design. This provides the best image plane for signal traces running above the plane. The thermal pad of the TUSB4020BI-Q1 and any of the voltage regulators should be connected to this plane with vias. An earth or chassis ground is only implemented near the USB port connectors on a different plane for EMI and ESD purposes.