标签: phase-noise

Phase-NoiseProfilesAidSystemTestingMaxim>AppNotes>BASESTATIONS/WIRELESSINFRASTRUCTUREWIRELESS,RF,ANDCABLEKeywords:PhaseNoise,PLL,PhaseLockedLoop,VCO,VoltageControlledOscillator,Oscillator,Impairment,SystemTestingMay05,2006APPLICATIONNOTE3822Phase-NoiseProfilesAidSystemTestingAbstract:Noiseispresentineverysystem.Phasenoise,inparticular,iscommonlyfoundinoscillatorsandphaselockedloopscandegradetheperformanceofasystem.Phasenoiseintheoscillatorofawirelesscommunicationsystemdegradesthereceiver'ssensitivityinreciprocalmixingconditions.Phasenoiseinatelecommunicationssystemcausestimejitterinthesignalchain.Althoughengineersusuallytrytominimizephasenoise,sometimesfortestpurposestheydegradethephasenoiseintentionally.Th……