DS90UB953-Q1: DS90UB953 POC beat choice.

chang sky

Prodigy 85 points

Part Number: DS90UB953-Q1

Dear Sir,

As below DS90UB953 POC circuit, about POC FB1~3 ferrite beads how to calculation & choice ?

Does this have formula tools?

Thanks!

Sky

over 6 years ago

0 Sally Cheung95 over 6 years ago

TI__Expert 5480 points

Hi Chang,

In table 173 in the 953 D/S, there are recommended values for FB 1-3. There is no formula tools, but in our app note, http://www.ti.com/lit/an/snla272/snla272.pdf , you may see the reasoning for selecting ferrite beads. The ferrite beads are used in a series of components for wide-bandwidth impedance and are chosen to cover the mid and high frequency bands.

0 chang sky over 6 years ago

Prodigy 85 points

snlu223.pdf

In addition, the FB of the file is different, how to set these FBs.

Changing the FB will cause the image to break and the connection is unstable. How to choose FB?

Interface

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DS90UB953-Q1: DS90UB953 POC beat choice.