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The two beams pass through a compensator and an analyzer , respectivelyto causephase compensation and interference of s and p polarizations
various components of a PLL , including its VCO , charge pump and/or loop filter(passive) may be contributed byThe phase noise of a PLL
This effectcould leadto phase lock loop ( PLL ) instability or phase noise degradation
This peak currentcan undesirably causea larger jitter and systematic phase offset in the PLL
the difference between the average divider modulus and the instantaneous fractional moduluscausesa well defined and predictable phase perturbation to the PLL
so on , such a b[n ] sequence would be periodicwould causethe PLL 's phase noise to contain spurious tones
PLL - based fractional - N frequency synthesizers 3 Author(s ) Zarkeshvari , F. Recent trends in the commercial use of fractional - N frequency synthesis ... independent loop bandwidth - channel spacingresultsin low phase noise and relaxes the phase - locked loop ( PLL ) design constraints
a large VCO gain ( Kvcoresultsin poor phase noise of the PLL
DSB(passive) created byAD9912 SYSCLK PLL resdual phase noise
the main componentcontributingto the phase noise of the PLL
the inter - carrier interference(passive) caused bythe inter - carrier interference
considerable problemscauseconsiderable problems
to better signal to noise ratio for different levels of drift and frequency offsetleadingto better signal to noise ratio for different levels of drift and frequency offset
a fundamental limitsetsa fundamental limit
significant degradationcausessignificant degradation
to the formation of ionospheric TEC depletionsultimately leadingto the formation of ionospheric TEC depletions
the ICI(passive) caused bythe ICI
the lockto createthe lock
poor S+N / N ratiocausespoor S+N / N ratio