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TUSB4020BI: Request of schematic review of TUSB4020

Part Number: TUSB4020BI
Other Parts Discussed in Thread: AM3352

TUSB4020.pdfI got the TUSB4020  schematic from my customer.

They request schematic review of TUSB4020.

 

They will used two AM3352. Two AM3352 are  devices and PC is host.

AM3352 power is from another power supplier and The USB 5V from PC is not used.

If VBUS 5V is not used,  Are DP,DN signal only conneted  when connecting downstream and upstream?