國立中山大學電機工程研究所碩士論文採用單迴路差異積分調制器之分數式頻率合成器設計DesignofFractional-NFrequencySynthesizerUsingSingle-LoopDelta-SigmaModulator研究生:何文豪撰指導教授:洪子聖博士中華民國九十四年六月誌謝首先感謝家人一直給我的支持,父母與弟弟是我求學以來強大的後盾,也是我失意時溫暖的避風港,讓我能夠...
Based on an analysis of sigma delta modulator models introduced in this dissertation, a 3rd-order MASH 1-1-1 digital sigma delta modulator is designed. Pipelining techniques and true single phase clock (TSPC) techniques are used for saving power and area.Included is the design of a fully ...
In this paper, rigorous analyses are presented for higher order multistage noise shaping (MASH) Delta-Sigma (/spl Delta//spl Sigma/) modulators, which are ... M Kozak,I Kale - 《IEEE Transactions on Circuits & Systems I Regular Papers》 被引量: 128发表: 2004年 Clock clean-up phase-lock...
An irrational initial condition imposed on the first accumulator of a third or higher order MASH modulator, on the other hand, annihilates the tones throughout the whole output spectrum, and provides a very smooth noise shaping. Simulation results are provided to support the theoretically derived ...
Modulation is achieved by manipulating the MASH engine. 7.2 Functional Block Diagram Vcc (x5) OSCin GND/OSCin* Fin Fin* CE CLK DATA LE 2X R Divider (16 bit) Phase Comp Charge Pump GND (x3) Vcp CPout N Divider 4/5 (18 bit) Prescaler Lock Detect MICROWIRE Interface û Compensation (...
With a large bit-width high order SigmaDelta modulator, the fractional-N PLL has fine frequency resolution and fast locking time. Based on an analysis of SigmaDelta modulator models introduced in this dissertation, a 3rd-order MASH 1-1-1 digital SigmaDelta modulator is designed. Pipelining techn...
Lecture_PLL6
We use a fractional-N PLL with a digital 3rd order MASH 1-1-1 delta-sigma modulator to accomplish the spread spectrum function. Fractional-N PLL can... 陳緯達,WeiTa Chen,蘇朝琴,... 被引量: 0发表: 2004年 AΔ-Σ PLL-based spread-spectrum clock generator with a ditherless fractional to...
(PLL) with four kinds of delta-sigma modulators (DSMs), is implemented to analyze and compare PLL phase noise and fractional spur performances among different DSMs, including 4(th)- and 5(th)-order single-loop (SL) and 3(rd)- and 4(th)-order multi-stage noise-shaping (MASH) ones....
In order to choose a proper DSM topology for WBAN applications, a comparative study of single-loop DSM and Multi-stAge noise SHaping (MASH) DSM are presented in this chapter. Simulation and experiment results show that the MASH DSM is more suitable for WBAN applications with higher integration,...