A Phase-Locked Loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input signal, commonly used in frequency synthesis, modulation, and demodulation. It synchronizes an oscillator with an external signal, maintaining consistent phase and frequency alignment, which is crucial for communication systems and electronic applications.

Phase-Locked Loop (PLL)

A Phase-Locked Loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input signal, allowing it to synchronize with the frequency of the input. It is widely used in telecommunications, computers, and other electronic applications for frequency synthesis, clock recovery, and modulation/demodulation processes.

Phase-Locked Loop

A control system is a set of devices or algorithms that manage, command, direct, or regulate the behavior of other devices or systems. It is essential in automation and engineering to ensure systems perform desired functions efficiently and accurately.

control system

An output signal is the electrical or electromagnetic signal that is transmitted from a device or system to convey information or perform a function. It is crucial in communication systems, control systems, and electronic devices, serving as the final product of processing or transformation within the system.

output signal

input signal

Frequency synthesis is the process of generating a range of frequencies from a single reference frequency, crucial for applications in telecommunications, signal processing, and electronic instrumentation. It enables precise control and stability of frequencies, often using methods like phase-locked loops (PLLs) and direct digital synthesis (DDS).

frequency synthesis

Modulation is a technique used in communication systems to modify a carrier signal in order to encode information for transmission. It is essential for efficiently transmitting data over various media, allowing signals to be adapted for different frequencies and bandwidths while minimizing interference and noise.

modulation

Demodulation is the process of extracting the original information-bearing signal from a modulated carrier wave. It is essential in communication systems to retrieve the transmitted data accurately and efficiently, enabling effective signal processing and data interpretation.

demodulation

An oscillator is a system that produces periodic oscillations, typically in the form of a sine or square wave, and is fundamental in various fields such as electronics, physics, and signal processing. It is essential for generating clocks, radio frequencies, and other repetitive signals, serving as a backbone for numerous technological applications.

oscillator

external signal

phase and frequency alignment

Communication systems are frameworks that facilitate the transmission of information between entities through various channels and technologies, ensuring accurate and efficient data exchange. They encompass both the hardware and software components necessary for encoding, transmitting, receiving, and decoding messages across different media.

Relevant Degrees

Log in to see lessons