客户设计参考demo板，内核电压VCC的大滤波电容太多，客户板上会放4颗FPGA，470UF电解电容会占据很大位置，是否可以去掉？(或者电容个数保留，总容值保留一样，例如0.1UF的电容做成1UF,减少470UF的数量)有什么标准吗？根据PDN文件，没有找到FPGA对应的封装型号！

[rwang64]

客户采用的1SM21 UF55这个型号，在PDN中没有找到，参考的demo板是1SM21 UF43的设计

[Rahul_S_Intel1]

May I know the full opn for the FPGA

[rwang64]

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[Rahul_S_Intel1]

Hi ,

I am kindly requesting , reply on forum instead of Email , because the forum is publicly view.

[Rahul_S_Intel1]

Hi ,

I verified the pdn , the opn is not mentioned on that , from the description what I understood is that you need to remove 470UF, May I know how you have arrived the value , if the 470uf capacitor value is working fine why you needed to remove.

From my understanding if it is taking more space , can it be changed by a capacitor bank

[Rahul_S_Intel1]

Hi ,

Kindly let me know if you need further assistance