TECHNICAL INFORMATION

 

This page details technical information available on this website. Subjects covered are crystal and oscillator theory, brief notes on the derivation of crystal part numbers and an explanation of crystal and oscillator terms. Additionally, an extensive application notes section is available.

 

Technical Notes: Crystal & oscillator theory (PDF)

Application notes: Practical circuit examples (PDF)

Crystal Specification: Description of crystal parameters and how to specify crystals (HTML)

Oscillator Specification: Glossary of oscillator terms (HTML)

Filter Specification: Glossary of basic filter terms (HTML)

 

Further explanation of contents is given below.

 

Technical Notes

If you are an engineer working mostly within digital techniques these notes may help with analogue theory relating to crystals and oscillator design. The subject is treated non-mathematically. Among the subjects covered are:

Determination of an oscillator circuit as series or parallel resonant.
Crystal Equivalent Circuit
Network Transformations
Crystal Calibration
Crystal Impedance Meter
Oscillator Theory (conditions for oscillation, phase-shift etc.)
Gain and drive-level
Basic oscillator circuits with component values for frequencies <150MHz
Designing CMOS and TTL circuits
Approximate formulae
TECHNICAL NOTES (PDF)

Application Notes

The application notes .PDF file contains several practical circuits and examples including:

IC compatible oscillators
Low-noise crystal oscillators
Schmitt-Trigger oscillators
Overtone oscillators
Easy start-up oscillators
Temperature-compensated crystal oscillators
Voltage-controlled crystal oscillators
APPLICATION NOTES (PDF)

 

Crystal Specification

 

This is a HTML page containing basic information on crystal parameters, including an explanation of the method used to determine a crystal specification.
CRYSTAL SPECIFICATION NOTES

 

Oscillator Specification

 

An HTML page containing basic technical information relating to packaged oscillators.

OSCILLATOR SPECIFICATION NOTES

 

Specification of Filters

 

A basic explanation of filter technical terms. FILTER SPECIFICATION NOTES

The subject is treated in more depth in the Crystal Filters section under Product Range.

For custom filter specification information see our separate page Euroquartz Filters.

 

This site is best viewed using the FRAMES version

www.euroquartz.co.uk