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
Explanation: The maximum dc output voltage occurs when the phase difference is π, because the output of the XOR gate phase detector remains high throughout. 8. Given the DC output voltage versus phase difference φ curve. Find the conversion gain values.