DS90UB953A-Q1: FPD-Link III design review

Hello Kranthi,

I do not see a schematic attached on the post. Would you be able to share the schematics on this forum? 

Best,

Zoe

Hi Zoe,

Please find attached SCH for review.

FPD-Link III_0.pdf

Hello Kranthi,

Thank you for sharing the schematic. I will review and provide feedback by Wednesday 8/2. 

Best,

Zoe

Hi Zoe,

Awaiting for your feedback/comments on the design review.

Regards,

Kranthi Kumar

Hi Zoe,

Thanks for your feedback. Kindly find attached file for my comments.

FPD-Link III_0_Review803.pdf

Regards,

Kranthi.

Hello Zoe,

Apologies for the delay in response. Referring to your follow up comments, the part numbers for the ferrite beads fulfill the recommendations listed.

Kranthi: Thanks.

The added pull down capacitor with 1uF value does not match the typical applications diagram example and would need to be verified to work with the system.

This value is as per the eval board.. Also refer below min pulse width reqirement as per the datasheet. If the 1uF cap doesn't match, kindly recommend us the suitable value. 

The requirement here is that the power up sequencing is followed. These requirements are listed in section 9.1 Power-Up Sequencing of the datasheet. 

Kranthi: Thanks.

Regarding the PoC solution, I recommend using the PoC solution provided in the datasheet given the current through the network is less than 150 mA. 

Please let me know if you have any additional questions. 

Kranthi: We are regulating only 1W power from PoC. Hope this is fine.