A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the high-speed signals away from the power planes and use a 50-ohm impedance-controlled routing for the USB traces.
Use a common-mode filter, such as a ferrite bead, on the USB lines. Keep the USB traces short and away from noise sources. Use a shielded cable and ensure the PCB is properly grounded.
The TUSB7320RKMT supports cable lengths up to 3 meters, but this can vary depending on the specific application and cable quality. It's recommended to use high-quality, shielded cables to minimize signal degradation.
The TUSB7320RKMT has a built-in low-power mode that can be enabled by setting the LPMODE pin high. Additionally, the device can be put into a low-power state by disabling the VBUS output and using the SUSPEND pin to reduce power consumption.
The TUSB7320RKMT has a maximum junction temperature of 150°C. Ensure good airflow around the device and use a heat sink if necessary. The device also has a thermal shutdown feature to prevent overheating.
TUSB7320RKMT datasheet
by Texas Instruments
