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USB Superspeed Peripherals

GuCu_1563371
New Contributor

I am designing a PCB using the FX3 chip and I need to know which is the characteristic impedance of the GPIF-II lines. I also know they must be series terminated with 22 ohm resistor but should I place them in a specific location along the transmission line?

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Anonymous
Not applicable

Hi,

   

There is no specification on location of the 22 Ohm resistors.

   

For Impedence, please refer: 

   

http://www.cypress.com/knowledge-base-article/characteristic-impedance-and-trace-spacing-fx3-gpif-ii...

   

Regards,

   

- Madhu Sudhan

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GuCu_1563371
New Contributor

Thanks a lot you've been very helpful!

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