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Analog ElectronicsOscillators & PLL

In a phase-locked loop, the loop filter is placed mainly between the phase detector and VCO to?

  • ASmooth the detector output and shape loop dynamics
  • BGenerate the reference frequency by itself
  • CRectify the VCO output for power conversion
  • DEliminate the need for feedback
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Correct Answer: A. Smooth the detector output and shape loop dynamics
Explanation: The loop filter removes unwanted high-frequency detector components and determines important loop bandwidth and dynamic characteristics.
Reference: Standard analog electronics: PLL loop filter
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