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Phase noise improve...
Phase noise improvement and noise modeling of type-I ADPLL with non-linear quantization effects
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- Shen, Jue (författare)
- KTH,VinnExcellence Center for Intelligence in Paper and Packaging, iPACK
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- Jonsson, Fredrik (författare)
- KTH,Elektronik och Inbyggda System,VinnExcellence Center for Intelligence in Paper and Packaging, iPACK
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- Chen, Jian (författare)
- KTH,VinnExcellence Center for Intelligence in Paper and Packaging, iPACK
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- Tenhunen, Hannu (författare)
- KTH,Industriell och Medicinsk Elektronik,VinnExcellence Center for Intelligence in Paper and Packaging, iPACK
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- Zheng, Lirong (författare)
- KTH,Industriell och Medicinsk Elektronik,VinnExcellence Center for Intelligence in Paper and Packaging, iPACK,Fudan University, China
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(creator_code:org_t)
- IEEE conference proceedings, 2015
- 2015
- Engelska.
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Ingår i: NORCHIP 2014 - 32nd NORCHIP Conference. - : IEEE conference proceedings. - 9781479954421
- Relaterad länk:
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http://ieeexplore.ie...
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https://kth.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- This paper presents a phase noise improvement method for fine tuning of type-I ADPLL by exploiting its nonlinear quantization effects. When quantization step approaches the same orders of magnitude of standard deviation of input noise, quantization effects become nonlinear, and additive noise modeling of quantization effects is no longer applicable. By proper offsetting the input signals in this case, the feedback loop of ADPLL can be very sensitive to frequency phase deviation. It results in a larger loop bandwidth, and in turn smaller in-band phase noise than in linear quantization case. A theoretic s-domain noise model is proposed to quantify the phase noise in nonlinear case. Results are verified in Modelsim simulations. Proposed method offers possibility of achieving lower phase noise by lower quantization resolution and less circuit design efforts.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- ADPLL
- Noise Model
- Nonlinear
- Quantization
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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