A crystal oscillator is a electromechanical device, it's also an electronic oscillator circuit. The main purpose of an oscillator is to make use of a quartz crystal as a ...PassiveComponentsCrystals,Oscillators&ResonatorsCrystalOscillatorsCrystalOscillatorsAcrystaloscillatorisaelectromechanicaldevice,it'salsoanelectronicoscillatorcircuit.Themainpurposeofanoscillatoristomakeuseofaquartzcrystalasafrequency.Crystaloscillator’susethemechanicalresonanceofavibratingcrystal,ofwhichismadeupfromapiezoelectricmaterial.Thisprocessallowstheoscillatortocreateandobtainanelectricsignalwithahighprecisionfrequency.WhereCrystalOscillatorsareusedThistypeoffrequencyismostlyusedtokeeptrackoftimewithinawristwatchoradigitalintegratedcircuit,toprovideastableclocksignal.Thisiswherethissignalgainedit'scommonlyreferredtoname"clocksignal".Thisclocksignalisusedtosynchronisetheoperationoftheotherelectronicdevicesthatmakeupthesystemtheoscillatorishousedin.Anoscillatorisalsousedtohelpstabilisefrequenciesforradiotransmittersandreceivers,usedinclocks(clockoscillator),computersandcellphones.Quartzcrystalcanalsobefoundinsidetestandmeasurementequipmentsuchascounters,signalgeneratorsandoscilloscopes.AlittlemoreinformationonCrystalOscillatorsCrystaloscillatorsareknowntobesuperiortoceramicresonators,thisisforamultitudeofreasons.Theyofferhigherstability,they'rehigherqualityandareconsiderablylowerincostandmorecompactinsize.Quartzcrystalsaremanufacturedforfrequenciesthatrangefromafewtensofkilohertzallthewayuptohundredsofmegahertz.TypesofCrystalOscillatorsTCXO-Theseareusedwhenatemperaturestabilityisneededandcan'tbeattainedthroughastandardcrystaloscillator(XO)oravoltagecontrolledcrystaloscillator(VCXO).OCXO-Thisisanovencontrolledcrystaloscillator,atypeofoscillatorthatachievesthehighestfrequencystabilitythataquartzcrystalcan.Theyaredesignedtooperateinsideatemperaturecontrolledoven,theyarephysicallylargerandrequiremorepowertorun.VCXO-Thisisavoltagecontrolledcrystaloscillator,itcontrolsthechangeincrystaloutputbyu