A phase shift oscillator is designed to oscillate at 155Hz. Determine the value of Rf. (Take C=0.30µF)
A. 399Ω
B. 3.98MΩ
C. 13.9kΩ
D. 403kΩ
Answer:A
A phase shift oscillator is designed to oscillate at 155Hz. Determine the value of Rf. (Take C=0.30µF)
A. 399Ω B. 3.98MΩ C. 13.9kΩ D. 403kΩ
Explanation: R = 1/(2πC√6×fo)