EDN

The CS4350 PLL DAC Simplifies System Design

Typical Digital to Analog Converters (DACs) require a high-speed Master Clock to clock their digital filters and modulators, as well as some portions of their discrete time analog circuitry. This ...
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 ...
EDN

Int-N PLL/synthesizer suppresses system noise

The LTC6945 6-GHz integer-N PLL/synthesizer features –226dBc/Hz normalized closed-loop in-band phase noise, –274-dBc/Hz normalized in-band 1/f noise, –157-dBc/Hz wideband phase noise floor, and ...
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 ...
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 ...