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Phase Locked Loop (PLL) Basics (061)

Phase-Locked Loops, or PLLs, are everywhere! In this video I will be giving you a walk through what a Phase-Locked Loop is and what makes it work. I will describe each of the building blocks that make up a PLL: * Phase Detector / Comparator/Detector * Loop Filter * Voltage Controlled Oscillator (VCO) * Feedback path including dividers * Other additionsL Pre-scalars & Post-scalars ================================ LINK to download the *FREE* LTSPICE program: https://www.analog.com/en/design-cent... LINK to the LTSpice Model Files: https://drive.google.com/file/d/1uBK-... Time Markers for Your Convenience ---------------------------- 00:05 Introductory Comments 01:27 What is a Phase-Locked Loop (PLL)? 02:51 The Basic Block Diagram 04:33 The Function Blocks 04:37 The Phase Comparator/Detector 05:28 Type I Phase Comparators 05:45 Digital Phase Detector: XOR 08:41 Analog Phase Detector: Two Types 09:15 The Balanced Mixer 12:03 Sample & Hold Method 14:57 Type II Phase Comparators: Digital 17:20 The Loop Filter 19:07 The VCO 20:59 The Feedback Path 22:38 Other Additions: The Pre-scalar & Post-scalar 24:04 Final Comments and Toodle-Oots -----------------------------