Precision Low Phase Noise Oven Controlled Crystal Oscillator as a Reference Source for Modern Synthesizers

Precision low phase noise oven controlled crystal oscillators (OCXO) with output frequencies from 10 to 100MHz are the key reference sources for modern frequency synthesizers. Phase noise, aging and frequency stability are the main parameters required to ensure synthesizers’ signal quality. Other important characteristics such as dynamic temperature sensitivity, vibration sensitivity are often ignored mistakenly. Crystal oscillator types, design techniques, phase noise and other characteristics and their influence on synthesizer designs will be covered.