TUTORIALS 5422

Crystal Calculations for ISM-RF Products

By: Martin Stoehr

Abstract:

Many industrial/scientific/medical (ISM) band radio frequency (RF) products use crystal oscillators to generate a reference for the phase-locked loop (PLL)-based local oscillator (LO). This tutorial provides a basic description of the ISM-RF Crystal Calculator, which can be used to calculate various impacts on crystal frequency accuracy and startup margin for such an LO.