

Operational Amplifiers - Technical MCQs
Q1: What three subcircuits does a phase locked loop (PLL) consist of?A phase comparator, comparator, and VCO
B phase comparator, bandpass filter, and VCO
C phase comparator, bandpass filter, and demodulator
D phase comparator, low-pass filter, and VCO
ANS:D - phase comparator, low-pass filter, and VCO PLL - A Phase-Locked Loop (PLL) is an electronic circuit with a current-driven oscillator that constantly adjusts to match the frequency of an input signal, often used in wireless systems. |


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