CYUSB3304 Super speed doesn't recognize ( impedence or something else?)

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Anonymous
Not applicable

Hi

   

I have a big problem with CYUSB3304 super speed signal on my board. I checked all impedences  with a software PCB design and the that's all right, but it's working only usb 2.0 and create a simple  " generic hub " on Windows 7. The revision chip is " E" without external Eeprom, and all settings into internal ROM are corrects, and i tried to change the  physical chip but doesn't work again.

   

Have you any information or other cases about this problem?

   

Is it  possible some HW problem? 

   

I routed the SS signal into multilayer PCB  with a correct stek up. Can the internal layer create a link problem?

   

 

   

Thanks in advance

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1 Reply
Anonymous
Not applicable

Hi,

   

This is possibly a hardware issue. Please share the schematic and layout files for review.

   

If the design information is confidential, you can create a Tech Support Case.

   

 

   

Regards,

   

Anil

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