Electronic Design

How to Design Very Wide Loop BW High-Performance PLL Frequency Synthesizers (Part 3)

A special technique produces very wide loop BWs in high-frequency PLLs (and hence, indirect (PLL) synthesizers), thereby achieving very low phase noise rivaling that of direct (MMD) synthesizers. A ...
EDN

Tracking PLL design through the decades, part 2

The desire to integrate more gateshas driven two advances in CMOS-processingtechnology, enabling the integrationof practical inductors in genericCMOS-logic processes. The first, theuse of CMP ...
EDN

Software PLL syncs to line using moving-average filter

A SPLL (software phase-locked loop) is used in this Design Idea to generate a synchronous reference to common-mode powerline interference in two-electrode ECG amplification. Though intended for ECG ...
Electronic Design

Smaller PLL Synthesizers Become Design-Friendlier

Phase-locked-loop (PLL) frequency synthesizers are signal sources often employed in many types of electronic equipment. They show up as clock sources in high-frequency instruments and as local ...