# Lesson 17 — Analog Filters

<p class="block-synopsis">Real filters, rolloff, the −3 dB point, and identifying filter type by inspection.</p>

**Objectives covered**

- **2.4** — I can determine the filter type, gain, and cutoff frequency of simple series circuits containing a resistor, capacitor, and/or inductor.

<div class="block-toc">
  <a class="bt-card bt-reading" href="../Block2Reading/Obj04/ECE215_B2_Obj04_Reading.html">
    <span class="bt-kind">Reading</span>
    <h4>Analog Filters</h4>
    <p>The course reading for Objective 2.4.</p>
  </a>
  <a class="bt-card bt-flashcards" href="L17_Flashcards.html">
    <span class="bt-kind">Flashcards</span>
    <h4>Review deck</h4>
    <p>Key terms, equations, and ideas from this lesson, in a self-test deck.</p>
  </a>
  <a class="bt-card bt-slides" href="../_static/slides/ECE_215_Lesson17.pdf">
    <span class="bt-kind">Slides</span>
    <h4>Lesson 17 deck</h4>
    <p>The slides used in class, as a PDF.</p>
  </a>
  <a class="bt-card bt-practice" href="../downloads.html">
    <span class="bt-kind">Practice Problems</span>
    <h4>Work these before the quiz</h4>
    <p>Ungraded problems with answers, on the downloads page.</p>
  </a>
</div>