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Analiza občutljivosti oscilatorjev na napajalne motnje
ID
STRAHIJA, TATJANA
(
Author
),
ID
Pleteršek, Anton
(
Mentor
)
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MD5: 01DAED2E0699F4D81F62275017D1B8C7
PID:
20.500.12556/rul/d4dda067-eff8-426a-82fb-55699ef7d3f2
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Abstract
Oscilatorji so neizbežen del vsakršnega vezja, ki je uporabljen v časovno-merilnih in komunikacijskih napravah. Odvisno od naprave je pomembna natančnost in/ali stabilnost frekvence. Pri komunikacijskih napravah je poleg teh dveh parametrov potrebno pri izbiri oscilatorjev upoštevati še količino faznega trepetanja (angl. jitter ). Sistemi, v katerih so oscilatorji uporabljeni, določajo pomen posameznih lastnosti, na odlagi česar vrednotimo ustreznost posameznega tipa. Natančno časovno referenco že nekaj desetletij podpirajo kristalni oscilatorji. V zadnjem času je tehnologija izdelave struktur na siliciju in sama CMOS tehnologija tako napredovala, da na marsikaterem področju zasedajo mesto kristalnih oscilatorjev MEMS in CMEMS oscilatorji, prav tako pa tudi silicijevi oscilatorji na podlagi RLC resonatorjev. Poudarek pričujočega diplomskega dela je na vplivu napajalnih motenj na trepetanje izhodnega signala oscilatorja. V uvodu diplomskega dela je podana kratka zgodovina nastanka oscilatorjev in njihove uporabe. V drugem poglavju je podan pregled tehnologije oscilatorjev in njihovih lastnosti. Teoretično ozadje faznega trepetanja je predstavljeno v tretjem poglavju. Četrto poglavje zajema merilno metodo, predstavitev merilne opreme in izbranih merjencev. Rezultati meritev so podrobno predstavljeni v petem poglavju, vključno z interpretacijo rezultatov meritev. Zadnje, šesto poglavje, pa podaja zaključke in na podlagi njih nasvete pri snovanju napajalnega dela oscilatorjev.
Language:
Slovenian
Keywords:
stabilnost oscilatorja
,
fazno trepetanje
,
fazni šum
,
BER
,
MEMS
Work type:
Undergraduate thesis
Organization:
FE - Faculty of Electrical Engineering
Year:
2016
PID:
20.500.12556/RUL-83790
Publication date in RUL:
30.06.2016
Views:
1642
Downloads:
307
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STRAHIJA, TATJANA, 2016,
Analiza občutljivosti oscilatorjev na napajalne motnje
[online]. Bachelor’s thesis. [Accessed 11 April 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=83790
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Language:
English
Title:
Supply Noise Sensitivity Analysis of Oscillators
Abstract:
Nowadays, majority of circuits include some type of oscillator. They are present in all time-measurement and communication circuits. Type of the system defines required accuracy and/or frequency stability. Additionally, for communication systems, also phase jitter is a key selective parameter. Parameters are weighted according to the system, where the oscillator is used. For many decades, crystal oscillators are selective choice for systems, where accuracy is required. In last ten years, progress in CMOS technology structures allowed development of MEMS and CMEMS oscillators, and also RLC resonator-based oscillators, which can replace crystal oscillators on many fields. Focus of this thesis is on supply noise influence on phase jitter. In the introduction, the thesis presents short history of oscillators and their end use. The second chapter describes different types of oscillators and compares their characteristics. Chapter three presents different jitter types. Measuring method, used equipment and set of tested oscillators is presented in chapter four. Measuring results and their interpretation is presented in fifth chapter. Last, sixth chapter, provides conclusions and directions for most appropriate use of oscillators.
Keywords:
Oscillator Stability
,
Phase Jitter
,
Phase Noise
,
BER
,
MEMS
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