Temperature Compensated Crystal Oscillator (TCXO) Design Aids: Frequency-Temperature Resonator Characteristics as Shifted by Series Capacitors

Abstract

Resonators for TCXO application are required to have accurately- characterized frequency-temperature (f-T) curves and equivalent network parameters. This report describes how the circuit parameters, critical resonator frequencies, and temperature coefficients depend on material constants of the crystal and geometrical factors. These constants are tabulated for AT- and SC- cut quartz. It further explains the observed f-T curve shift between resonator operation with and without series load capacitors. Simple relations are given for treating this effect, along with charts and other design aids. These are used in a practical example involving an AT-cut resonator for a typical TCXO application.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 01, 1977
Accession Number
ADA041075

Entities

People

  • Arthur D. Ballato

Organizations

  • United States Army Communications-Electronics Command

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Capacitance
  • Capacitors
  • Circuits
  • Coefficients
  • Crystal Oscillators
  • Electrical Engineering
  • Equations
  • Equivalent Circuits
  • Frequency
  • Frequency Shift
  • Materials
  • Piezoelectric Crystals
  • Quartz Resonators
  • Resonance
  • Resonant Frequency
  • Resonators
  • Temperature Coefficients

Fields of Study

  • Physics

Readers

  • Business Analytics
  • Electronics Engineering
  • Thermal Physics or Thermal Science.