Termination resistor of IN_CLK at DS90UB947 EVM

Nao

Hi, E2E members

My DS90UB947 EVM was not implemented R120(IN_CLK) of termination resister.
Termination resister of other data lines was implemented.

which means that forgot implement it or no need to Implement it?
Please let me know the reason, if R120 does not need to implement only.

Regards,
Nao

over 9 years ago

0 Nao over 9 years ago

Genius 4905 points

Hi, E2E members

Is there any update for my question?

Regards,
Nao

0 Jason Blackman over 9 years ago in reply to Nao

TI__Genius 14015 points

Hi Nao,

Termination is required for all LVDS pairs, including the clock. This looks like a mistake that happened when the board was assembled. I'll look into it.

Thanks,
Jason

0 Nao over 9 years ago in reply to Jason Blackman

Genius 4905 points

Hi Jason-san

Thank you for your feedback.
My and our customer's EVMs are the same condition.
Please look into this matter.

Regards,
Nao

0 kenshow over 9 years ago in reply to Nao

Genius 3725 points

Hello Jason

In addition, the parts, U1 and X2 aren’t placed on the EVM. Hence, we aren’t available external clock from the board. Pleases check them.

Regards,
Kenshow

0 Nao over 9 years ago in reply to kenshow

Genius 4905 points

Hi, All

Is there any update on this?

Regards,
Nao

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Termination resistor of IN_CLK at DS90UB947 EVM