Transcription of Crystal Oscillator Troubleshooting Guide
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Freescale Semiconductor AN3208. Rev. 0, 1/2006. Application Note Crystal Oscillator Troubleshooting Guide by: Sergio Garcia de Alba Garcin RTAC Americas 1 Overview 1. Table of Contents Overview .. 1. This document is a quick-reference Troubleshooting 2 Introduction .. 1. 3 Oscillator Configurations.. 2. Guide for solving Crystal Oscillator problems that might 4 Components in the Colpitts Configuration .. 3. be encountered when working with microcontrollers. 5 Components in the Pierce Configuration .. 3. 6 Crystal Overdriving .. 4. A practical explanation of the Pierce and Colpitts 7 Insufficient Loop Gain .. 5. oscillators used in Freescale microcontrollers and 8 Long Start-Up Time.. 5. recommendations to help solve common problems with 9 Temperature and Voltage Issues .. 5. microcontroller Crystal oscillators are presented in the 10 Noise Immunity .. 6. 11 Layout Issues.
Application Note AN3208 Rev. 0, 1/2006 1 Overview Table of Contents This document is a quick-reference troubleshooting guide for solving crystal oscillator problems that might be encountered when working with microcontrollers. A practical explanation of the Pierce and Colpitts oscillators used in Freescale microcontrollers and
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