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
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LINK to download the *FREE* LTSPICE program:
www.analog.com/en/design-cent...
LINK to the LTSpice Model Files:
drive.google.com/file/d/1uBK-...
Time Markers for Your Convenience
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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
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