Which outcome increases when a Phase-Locked Loop's (PLL) VCO unlocks due to a disturbance?

💡 Explanation

Spurious signals increase because the PLL's loop filter cannot track rapid phase changes resulting from VCO unlock via its phase detector; VCO instability creates sidebands, therefore more harmonics become present, rather than power rejection improving by design.

• Which outcome commonly occurs in gallium nitride (GaN) power transistors at high switching frequencies?
• In a hydraulic system driving intermittent high-load actuators, which outcome occurs when the accumulator's pre-charge pressure is excessively low?
• Which outcome occurs when fuel injectors in a diesel engine experience excessive carbon buildup?
• Which outcome occurs when spool valves within a hydraulic actuator experience aeration?
• Which outcome occurs when ground fault occurs on distribution transformer secondary circuit?
• Which consequence results when a fly-by-wire flight control hydraulic actuator seal degrades?