Electronics Engineering · Frequency Synthesizers
What is the primary function of a crystal oscillator when used within a frequency synthesizer circuit?
- 1To multiply and directly increase the raw high-frequency input signal
- 2To act as a low-pass filter to remove wideband phase noise
- 3To progressively decrease the overall loop input frequency
- 4To provide a highly stable and accurate reference frequency input✓
Correct answer
To provide a highly stable and accurate reference frequency input
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