EDN

PLL design kit features timing models, GDSII physical views

A new design kit enables system-on-chip (SoC) developers to efficiently incorporate clocking IP into their designs with full support for layout, simulation, and timing closure. Perceptia Devices, an ...
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

PLL Dynamic Reconfiguration

The clock management tiles (CMT) in the Spartan-6 devices contain two DCMs and one PLL. One of the most powerful features of the PLL is its ability to dynamically reconfigure the phase, duty cycle, ...
Electronic Design

Phase-Noise Modeling, Simulation, and Propagation in Phase-Locked Loops (Part 2)

Some brief theory and typical measurements of phase noise. Standard analysis of PLL phase noise used by most CAD applications. How to produce the lowest phase noise at a PLL output. A standard design ...