Learn about the working principles of Phase-Locked Loops (PLL) and why they are widely used for applications where frequency tracking, resonance driving, and oscillator control are required.

The phase locked loop, or PLL, is a real workhorse of circuit design. It is a classic feedback loop where the phase of an oscillator is locked to the phase of a ...

If you want a stable oscillator, you usually think of using a crystal. The piezoelectric qualities of quartz means that it can be cut in a particular way that it will oscillate at a very precise ...

This application note discusses phase frequency detector characteristics that affect phase-locked loop (PLL) dead band and jitter performance. In PLLs that employ charge pump loop filter designs the ...

I ran across a really good article about simulating phase-locked loops in Wireless Design and Development magazine. Andy Howard wrote it over at Agilent. Phase lock loops or PLLs are a very difficult ...

Some brief theory and typical measurements of phase noise. Standard analysis of PLL phase noise used by most CAD applications. How to produce the lowest phase noise at a PLL output. A standard design ...

Abstract: The tutorial overviews the basics of digital fractional-N phase-locked-loop architectures and their design principles from the signal-processing level down to circuit design. We will examine ...

Wrapping up the series, in Part 3 we analyze the example hypothetical synthesizer to demonstrate the concepts and methods presented so far. Some brief theory and typical measurements of phase noise.

Abstract: A phase-locked loop is a key building block in wireline and wireless systems. In the wireline systems, low-jitter clock generation and versatile clock-and-data recovery circuits are critical ...