Question

Which characteristic of PLL is defined as the range of frequencies over which PLL can acquire lock with the input signal?

• A. Free-running state
• B. Pull-in time
• C. Lock-in range
• D. Capture range

Hint:

The lock-in range is the range of input frequencies that the PLL can maintain lock with, which is a key aspect of a phase-locked loop. Remember the difference between capture range and lock range.

Answer 1

The Correct Option is C

The lock-in range of a Phase-Locked Loop (PLL) is the range of frequencies over which the PLL can maintain phase synchronization (lock) with the input signal. It is different from capture range which is range over which the PLL can establish a lock with the input signal.