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Power filter capacitors - PDN impedance

Question asked by vik1228 on Jun 1, 2015
Latest reply on Jun 1, 2015 by GuenterL

We use ADV7850 / ADV7511 / AD9388 ICs.

The datasheet mentioned 10nF and 100nF capacitors for bypassing.

Can you give me the impedance profile of the Power Distribution Network?  ( PDN impedance )

I think the critical power pins are VDD, TX_AVDD, TX_PVDD,  CVDD.

 

For example on this picture you see simulation results.

The target impedance is markered by the dashed line.

Can you send me the target impedance of the ADV7850 / ADV7511 / AD9388 power network?

PI_impedance.png

 

Thank you.

 

Best regards,

Viktor Juhász

Lightware

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