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We used PDN fore core power supply decoupling scheme of Stratix Gx F55 device.Despite having ignored all the parameters (via,spreading ,vrm,...) ,the Zv curve (Zh=Zv+Zs) has a minimum value of 0.55m.How can reduce this value ? what is a formula for calculation this value ?
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Hi ,
Thanks for your response .
My question is : Despite having ignored all the parameters (via,spreading ,vrm,...) ,the Zv curve (Zh=Zv+Zs) has a minimum value of 0.55m, why did not have 0m ?
(If i understand : Zv BGA Via impedance and Zs is the PCB spreading impedance ) ,Despite i ignored all this parameters in the PDN but Zv remains bigger than to 0.2m
Regards,
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Hello ,
sorry, I didnt notice your reply back :(
when I tried iam getting 0m, Can you send me the your PDN sheet ?
Thank you ,
Regards,
Sree

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