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Phase Noise Performance of a PLL Frequency Synthesizer when Powered by Silent Switchers
KTH, School of Electrical Engineering and Computer Science (EECS).
2023 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In use today are ‘normal’ DC-DC switching regulators with considerable switching noise and ringing, which is bad for noise-sensitive applications. This project involves a solution based on ‘Silent Switchers’ to prove its effectiveness in reducing noise. This idea is then coupled into identifying the susceptibility of a PLL synthesizer to ensure we understand the sensitivity of this type of component and if this can be used with a silent switcher. A particular PLL synthesizer evaluation board is currently powered by linear regulators, which is used as a basis for comparing results. A new board involving silent switchers is designed and manufactured. Phase noise measurements are done to evaluate if silent switchers are a suitable alternative for power supply.

Abstract [sv]

Idag används ’vanliga’ DC-DC switching regulatorer med betydande kopplingsbrus och ringningar, vilket är dåligt för bruskänsliga applikationer. Detta projekt innefattar en lösning baserad på Silent Switchersför att bevisa dess effektivitet när det gäller att minska bruset från dessa regulatorer. Denna lösning används sedan till att identifiera känsligheten hos en PLL-synthesizer för att se till att vi förstår känsligheten hos denna typ av component och om den kan användas med en Silent Switcher". Som referens för studien används ett särskilt PLL-synthesizer- utvärderingskort, drivet av linjära regulatorer. Ett nytt kort med Silent Switchers"istället för linjära regulatorer har konstruerats och tillverkats. Fasbrusmätningar görs på båda korten för att utvärdera om Silent Switchers"är ett lämpligt alternativ för denna applikation.

Place, publisher, year, edition, pages
2023. , p. 49
Series
TRITA-EECS-EX ; 2023:882
Keywords [en]
Silent Switcher, PLL synthesizer, Phase noise, PCB implementation.
Keywords [sv]
Silent Switcher, PLL-synthesizer, fasbrus, PCB-implementering.
National Category
Computer and Information Sciences
Identifiers
URN: urn:nbn:se:kth:diva-343451OAI: oai:DiVA.org:kth-343451DiVA, id: diva2:1837742
External cooperation
Analog Devices AB
Subject / course
Communications Systems
Educational program
Master of Science -Communication Systems
Supervisors
Examiners
Available from: 2024-02-15 Created: 2024-02-14 Last updated: 2024-02-15Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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Output format
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