Title :
Modeling phase noise in multifunction subassemblies
Author :
Driscoll, Michael M.
Author_Institution :
Northrop Grumman Electron. Syst., Baltimore, MD, USA
Abstract :
Obtaining requisite phase noise performance in hardware containing multifunction circuitry requires accurate modeling of the phase noise characteristics of each signal path component, including both absolute (oscillator) and residual (non-oscillator) circuit contributors. This includes prediction of both static and vibration-induced phase noise. The model (usually in spreadsheet form) is usually refined as critical components are received and evaluated. Additive (KTBF) phase noise data can be reasonably estimated, based on device drive level and noise figure. However, accurate determination of component near-carrier (multiplicative) and vibration-induced noise usually needs to be determined via measurement. The model should also include the effects noise introduced by IC voltage regulators and discriminate between common vs. independent signal path residual noise contributors.
Keywords :
integrated circuit noise; oscillators; phase noise; vibrations; voltage regulators; IC voltage regulator; KTBF phase noise data; multifunction circuit; multifunction subassembly; multiplicative noise; nearcarrier noise; oscillator; phase noise characteristics; phase noise modeling; signal path component; signal path residual noise; static induced phase noise; vibration induced phase noise; Crystals; Noise measurement; Phase noise; Resonant frequency; Vibrations;
Conference_Titel :
Frequency Control and the European Frequency and Time Forum (FCS), 2011 Joint Conference of the IEEE International
Conference_Location :
San Fransisco, CA
Print_ISBN :
978-1-61284-111-3
DOI :
10.1109/FCS.2011.5977273