1.2版的Virtex-6 FPGA PCB Design Guide说:Virtex-6 devices require few PCB capacitors because high-frequency ceramic capacitors are already present inside the device package (mounted on the package substrate)。是不是像表2-1,2-2,2-3所说的,每个FPGA只需要给VCCINT提供几个去耦电容,VCCO和VCCAUX不需要去耦电容,旁路电容一律不需要?Xilinx的ML605开发板上可是挂了一大堆电容的。
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