Application notes
1. Guideline for the use of Crystal Units
PDF
Please see attachment for the guideline for the use of crystal units.
2. Soldering Cylindrical Type Crystals
This application notes describes how to properly solder cylindrical type crystals.
3. Ideas of Mounting HC-49U Crystals in a high shock application
This application note analyses and suggests ways of mounting HC-49U crystals in a high shock application.
4. Crystal Measurement Service - Application Circuit Measurement Service PDF
This application notes describes the Crystal Measurement Service for identification of production problems and for second sourcing; as well as the pre-requisites for sending PCBA for Application Circuit Measurement Service
5. Reliability and application of Quartz Crystals
This document discusses how to specify quartz crystals from the perspective of the application as well as the reliability aspects.
6. Sleeping Crystals and Drive Level Dependency (DLD)
This application notes discuss generally the behavior of crystal resonators but the quantitative figures are only limited to AT Cut and BT Cut thickness shear mode quartz crystal resonators. Ceramic resonators also exhibit similar behavior.
7. Direct Impedance Method For Load Resonant Measurement of Crystal PDF
With today's hardware (Network Analyzers), the Direct Impedance Method provides better accuracy, convenience and at lower cost over other methods such as the Physical Load Capacitor method. However, a lot of crystal engineers still ask frequently, "Where is the Physical Load Capacitor?" This paper addresses how and why the Direct Impedance Method is better than the other measurement methods.
8. Suggested IQC Procedures for Quartz Crystals
This document suggests a skeleton of IQC procedures for crystal users. Since different crystal users will have different quality level requirements, the sampling plan is not discussed in details.
9. Interpretation of CL and Room Temp Tolerance
This application notes clarifies the ambiguity of tolerance in both CL and Room Temperature Accuracy.
10. Crystal application in VCO - Voltage Controlled Oscillator (Trimming Sensitivity of Crystal at Fs and FL)
This document is to compare the Frequency pulling sensitivity of crystals under different nominal working Load Capacitance, CL.