Learn about the fundamental components and operation of a phase locked loop in this 25-minute video lecture. Explore the block diagram of a PLL and understand the essential functions of its key elements, including the phase error detector, loop filter, and voltage controlled oscillator. Discover how these components work together to achieve phase locking. Examine practical examples, learn about voltage buffers, and delve into the transfer function of a PLL system. Gain valuable insights into this crucial electronic circuit used in various applications, from communication systems to frequency synthesis.