DS90UB662-Q1: ds90ub662 POC design review

Imelda Zhang

Expert 3295 points

Part Number: DS90UB662-Q1

Hi Expert,

My customer using DS90UB9662 with 4 933 1280x720x30.

The SCH is not following the POC design on our datasheet

Would you mind helping me to review the POC SCH? Is there any other suggestion?

Kind Regards

Imelda

10 months ago

0 Thomas Bejin 10 months ago

TI__Genius 14175 points

Hi Imelda,

Thanks for reaching out with this question. What we would recommend here is that customers look at the impedance of their PoC network across the operating frequency range of the device. This would cover the forward channel and the back channel rates used to isolate the forward channel link from the power sent to the serializer.

The application note linked below should provide some additional context regarding PoC design for the UB913A/UB933.

snla224_Sending Power Over Coax in DS90UB913A Designs.pdf

Best,

Thomas

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DS90UB662-Q1: ds90ub662 POC design review