Electronics Weekly

Analogue or digital in PLL design

The performance of analogue phase-locked loops (PLLs) has steadily improved with operating frequencies extending to 8GHz and beyond. Recently, digital PLLs based on direct digital synthesis (DDS) have ...
Elektor Magazine

The Interlaced NCO: A New Twist on the Digital PLL

The real "showstopper" in a standard digital PLL is the interaction between the loops. In a typical design, the Phase Detector and the Frequency Detector run simultaneously.
Design-Reuse

Low Power High Speed All Digital Phase Locked Loops

In this paper an All Digital phase locked loop is proposed. This PLL can accomplish faster phase lock. Additionally, the functions of frequency comparator and phase detector have been improved and are ...
EDN

Frequency and phase locked loops

The purpose of a phase locked loop (PLL) is to generate a frequency and phase-locked output oscillation signal. To achieve this goal, prior art essentially functioned ...
EDN

Determining the angle resolution of all-digital PLL-based resolver-to-digital converters

Resolver-to-digital converters (RDCs) are signal conditioning circuits that are used to obtain a digital representation of the angle of a rotating shaft. This angle estimate is used in servo ...