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1·Memory IC, Chip Ceramic Capacitors, Inductor, Chip Tantalum Capacitors, Ferrite Bead.

存储器，贴片陶瓷电容器，贴片陶瓷电感，贴片钽电容器，磁珠。

2·VCCD_PLL must always be connected to VCCINT through a decoupling capacitor and ferrite bead.

请帮我释一下这两个电源通过一个去耦电容相接是什么意图？

3·Apart from this step, designers should also connect an EMI filter, such as a ferrite bead , to the output of the amplifier.

除此之外，调试人员还应将电磁波滤波器连接至音频放大器音频输出端，诸如铁氧体磁环均能达到类似的过滤效果。