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Electronic Devices - Oscillator Circuits

Exercise : Oscillator Circuits - General Questions
11.
Referring to this figure, calculate the voltage gain without feedback for the following circuit values: RD = 4 k, RS = 1 k, RF = 15 k, and gm = 5000 μS.

–20.0
–21.5
–23.5
–25.5
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
For a phase-shift oscillator, the gain of the amplifier stage must be greater than ________.
19
29
30
1
Answer: Option
Explanation:
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13.
Which of the following is (are) the determining factor(s) of the stability of a feedback amplifier?
A
Phase shift between input and output signals
Both A and the phase shift between input and output signals
None of the above
Answer: Option
Explanation:
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14.
What is the minimum frequency at which a crystal will oscillate?
seventh harmonic
third harmonic
fundamental
second harmonic
Answer: Option
Explanation:
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15.
An amplifier with a gain of –500 and a feedback of = –0.1 has a gain change of 15% due to temperature. Calculate the change in gain of the feedback amplifier.
0.2%
0.3%
0.4%
0.5%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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