A circuit that produces an output voltage proportional to the phase difference between two input signals is called the
A) VCO.
B) carrier.
C) multivibrator.
D) phase detector.

Question

Quizplus · Accepted Answer

A circuit that produces an output voltage proportional to the phase difference between two input signals is called a phase detector. A VCO (voltage-controlled oscillator) produces an output frequency proportional to its input voltage. A carrier refers to a high-frequency signal that is modulated to carry information. A multivibrator is an electronic circuit that can produce a variety of waveforms, including square waves and pulses, but it does not directly measure phase difference between two input signals.

A Circuit That Produces an Output Voltage Proportional to the Phase