这是发布在SIJ（信号完整性杂志）2020年1月份的封面文章，作者为大名鼎鼎的信号完整性专家Eric Bogatin。 看很多的设计中，电源的去耦都使用3个不同值的电容10uF、1uF、0.1uF并联在一起使用，为什么？从电路的角度不就是11.1uF么？为啥要放三个？0.1uF几乎遍布所有 ...

The rule of thumb to use a 0.1-µF capacitor on the power pin of a semiconductor device is rapidly fading away. Semiconductor products of today have multiple power pins and voltages. But, it is more ...

先谈两个比较重要的概念：旁路电容(Bypass Capacitor)，去耦电容(Decoupling Capacitor)。 只要是设计过硬件电路的同学肯定对这两个词不陌生，但真正理解这两个概念的可能并不多。我刚毕业时就问过我的师傅，为什么总是在电路里摆两个 0.1uF 和 0.01uF 的电容。当时我 ...

You are designing your latest sub-system and somebody tells you to place as many 100 nF decoupling capacitors as you can, as close as physically possible to all the integrated circuits, just like we ...

Decoupling capacitors have long been an important aspect of maintaining a clean power source for integrated circuits, but with noise caused by rising clock frequencies, multiple power domains, and ...

Everyone knows that the perfect capacitor to decouple the power rails around ICs is a 100 nF ceramic capacitor or equivalent, yet where does this ‘fact’ come from and is it even correct? These are the ...

A thin-film termination technology developed by AVX makes it possible to dramatically reduce the internal inductance of decoupling capacitors. A thin-film termination technology developed by AVX ...

Noise management, induced by digital circuits on a p. c. board assembly, deserves the attention of power supply designers and those mastering digital, analog, and mixed-mode application problems ...