EDN

PLL frequency synthesizers

Norwood, Mass. — Three phase-locked-loop (PLL) frequency synthesizers have been unleashed for the upconversion and downconversion of RF signals and for timing generation. The first synthesizer, the ...
EDN

PLL frequency synthesizer portfolio claims industry’s lowest low phase noise in satellite applications

SAN DIEGO, CA — Peregrine Semiconductor Corporation has anounced the UltraCMOS™ PE97022 and PE97042 phase locked loop (PLL) frequency synthesizers for satellite payload designs. The new pair of 3.5 ...
Electronic Design

PLL Frequency Synthesizers Operate To 8 GHz

Phase-locked-loop (PLL) frequency synthesizers lie at the heart of all digital radio transceivers. A new family of PLL synthesizers offers outputs up to 8 GHz for use as local oscillators in up/down ...
Electronic Design

Driving the VCO in High-Voltage, High-Frequency Phase-Locked Loops

A phase-locked loop (PLL) is a feedback system that combines a voltage-controlled oscillator (VCO) and a phase detector in such a way that the oscillator signal tracks an applied frequency or ...
Design-Reuse

Creating a Frequency Plan for a System using a PLL

How do you ensure that every part of a system receives the clock it needs—without wasting power or sacrificing performance? The answer lies in creating a well-structured frequency plan built around a ...
TechRepublic

Behavioural Modelling and Simulation of PLL Based Integer N Frequency Synthesizer using Simulink

Behavioral modeling and simulation of a PLL based integer n frequency synthesizer has been illustrated in this paper. The synthesizer generates a signal of 5.15-5.25GHz in the UNII (Unlicensed ...
EurekAlert!

Combating fractional spurs in phase locked loops to improve wireless system performance in Beyond 5G

Two innovative design techniques lead to substantial improvements in performance in fractional-N phase locked loops (PLLs), report scientists from Tokyo Tech. The proposed methods are aimed to ...