![]() ![]() The design principles for pi filter circuits are deceptively simple, and these filters can be easily adapted for many applications using discrete components. If you’re looking to a simple higher order passive filter for use in impedance matching, EMI filtering, and power regulation, a pi filter provides strong rolloff without active circuit elements. Although integration of filter circuits into many SoCs is simplifying circuit design and layout tasks, filters made from discrete elements are not going away and find their home in many important circuit designs. These filter circuits are critical in many applications, but they are quite simple to design. Impedance matching, power regulation, EMI filtering… the applications of different filter circuits are varied. If you need a simple higher order passive filter, a pi filter is a good choice. ![]()
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