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DS90UB925Q-Q1: The method of common mode noise

Part Number:DS90UB925Q-Q1

Hi all

Would you mind if we ask DS90UB925Q-Q1?

On our customer's circuit, according to common mode noise, it is not possible to pass the EMI test.

So, it depends on the cable, connectors, the board layout and power source.

Then, we have question about CMF pin.

In order to configure common mode filter, there is 0.1uF cap.

On EVM, there is 0.1uF cap and 0.1ohm.

Is this 0.1ohm effective for common mode noise?

And if you have some advice, could you let us know?

Kind regards,

Hirotaka Matsumoto


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