EDN

Low Power Phase-Locked Loop with VCO

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.
Electronic Design

National Semiconductor single-chip PLL and VCO boasts low phase noise

National Semiconductor Corporation (www.national.com) has introduced the LMX2531, a monolithic phase-locked loop and voltage-controlled oscillator (PLL + VCO) integrated circuit with a frequency range ...
EDN

Optimizing VCO PLL Evaluations & PLL Synthesizer Designs

Today’s mobile communications systems demand higher communication quality, higher data rates, higher frequency operation, and more channels per unit bandwidth. As much of this equipment is portable, ...
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 ...
AZOM

Principles of Phase-Locked Loops (PLL)

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.
Electronic Design

How to Design Very Wide Loop BW High-Performance PLL Frequency Synthesizers (Part 1)

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 ...
EurekAlert!

Figure 2. Die micrograph of the proposed digital phase locked loop (PLL) (IMAGE)

The total power consumption of the proposed PLL is only 8.89 mW from a 1 V supply, which leads to a figure of merit of reference of -247.4 dB. Credit must be given to the creator. Only noncommercial ...