Which of the following stages is not a building block of a phase-lock loop?
A) low-pass filter
B) phase comparator
C) frequency multiplier
D) voltage-controlled oscillator

Question

Quizplus · Accepted Answer

A phase-lock loop (PLL) typically consists of a phase comparator, a low-pass filter, and a voltage-controlled oscillator. The frequency multiplier is not considered a fundamental building block of a PLL, as its main components are focused on locking onto a phase of a signal, not necessarily multiplying its frequency.

Which of the Following Stages Is Not a Building Block