Explanation: The XOR gate produces high output when only one of the input signal fo or fs is high. So, to detect high or low value of waveform, square waves are used. 7. The maximum dc output voltage in digital phase detector occurs
A. When the phase difference is π/2
B. When the phase difference is π
C. When the phase difference is 3π/4
D. When the phase difference is 2π
Answer:A
Explanation: The XOR gate produces high output when only one of the input signal fo or fs is high. So, to detect high or low value of waveform, square waves are used. 7. The maximum dc output voltage in digital phase detector occurs
A. When the phase difference is π/2 B. When the phase difference is π C. When the phase difference is 3π/4 D. When the phase difference is 2π