Other Parts Discussed in Thread: TPS2561, TUSB1210
Dear，
I have a question to interrupt you, our customer used TUSB4020,and he found that USB_DN2 could recognize 480M high speed, but USB_DN1 only recognized full and low speed.
The schematic has not clear completely, FULLPWRMGMTz and GANGED pulled down with 4.7Kohm resistor. PWRCTLx/BATENx of Pin5 and Pin6 are both pulled up with 4.7Kohm.PWRCTL_POL is also pulled down.
But the problem is that if the removed the 150uF limit-current capacitor of TPS2561, USB_DN1 could recognize high speed successfully . So why this capacitor used 150uF, what about other capacitor value like 100uF or 200uF?
Best regards
Kailyn
