TUSB522P: TUSB522P test fail in USB3.0 RX Mode_Long Ch item...

Hi,

Could you help me understand what exactly failed? Was the system able to enter loopback or is there a reoprt that can be shared on how the RX long channel test failed? TUSB522P EQ and DE setting may need to be further tuned, what are the current settings?

Hi Sir,

Please kindly refer the attachment schematic and test report, also EQ/DE setting as below.

1. EQ: EQ1=Mid(6dB)，EQ2= Mid(6dB).

1. DE: DE1=Low(0dB)，DE2= Low(3dB)

.S9300881-52-USB30.pdfVC-M830P_USB 3.0_test report.zip

Hi Tommy,

Thanks for the schematic and results, I will review these. Have you tired increasing DE2 to MID settings to achieve 3.5dB of de-emphasis on the upstream path (JBERT to USB Host)? Is this a Type-C or Type-A application? 

Hi Sir,

ok~got it, will try setting to mid or high, the customer connector is type-b. i will reply to you result later.

Hi Tommy,

Please let me know the results soon thanks.