____________is a fixed frequency oscillator?
Correct answer: D. Crystal oscillator
- A. Phase-shift oscillator
- B. Hartely-oscillator
- C. Colpitt's oscillator
- D. Crystal oscillator
Explanation
A crystal oscillator uses the crystal's sharply defined mechanical resonance, so its frequency is essentially fixed and highly stable. RC and LC oscillators allow frequency variation through resistors, capacitors, or inductors.
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