TUSB2046B: TUSB2046B，Can't communicate

Neal Zhu

Expert 2470 points

Part Number: TUSB2046B

TUSB2046B，Can't communicate，The customer sch is attached，What are the reasons，what good method can check，Thanks.

0 JMMN over 6 years ago

Hi Neal,

They are missing the 1.5K pullup on the DP0 line, and need to change the 1K pulldowns on the downstream ports to 15K pulldowns.

Regards,

JMMN

0 Neal Zhu over 6 years ago in reply to JMMN

Expert 2470 points

Thanks, I'll try.

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