This is Part 1 of a three-part series. As modern wireless communications systems (mainly superheterodyne radio transceivers) are now required to deliver higher performance than ever before, they’re ...

Abstract: Presents a tutorial on phase-locked loops from a control systems perspective. It starts with an introduction of the loop as a feedback control problem, with both the similarities and ...

A phase-locked loop (PLL) for analog signals generates an output with a phase that’s precisely matched to the phase of an input reference. Analog PLLs are widely used in high-frequency applications ...

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 ...

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The 74HC/HCT4046A are phase-locked loop (PLL) with linear voltage-controlled oscillator (VCO) CMOS device having pins suited to 4046 in a 4000B series. These devices comply to JEDEC standard no. 7A.

As clock speeds and communication channels run at ever higher frequencies, engineers who have previously had little need to consider clock jitter and phase noise are finding that they need to increase ...