Explanation: The open loop voltage gain as a function of frequency is given as AOL(f) = A/ [√ 1+ (f/fo)] at frequency above fo, the denominator value increases, causing the gain, AOL(f) to decrease. Thus, as frequency increases, the gain AOL(f) continuous to drop. 12. What will be the absolute value of phase shift, if the frequency keeps increasing?
A. Increase towards 45o
B. Decrease towards 45o
C. Increase towards 90o
D. Decrease towards 90o
Answer:A
Explanation: The open loop voltage gain as a function of frequency is given as AOL(f) = A/ [√ 1+ (f/fo)] at frequency above fo, the denominator value increases, causing the gain, AOL(f) to decrease. Thus, as frequency increases, the gain AOL(f) continuous to drop. 12. What will be the absolute value of phase shift, if the frequency keeps increasing?
A. Increase towards 45o B. Decrease towards 45o C. Increase towards 90o D. Decrease towards 90o
Explanation: For any frequency above break frequency, the absolute value of phase shift increases towards 90o with increase in frequency. Sanfoundry Global Education & Learning Series – Linear Integrated Circuit.