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A high-speed low-power divide-by-15/16 dual modulus prescaler in 0.6 mu m CMOS
2001 (English)In: Analog Integrated Circuits and Signal Processing, ISSN 0925-1030, E-ISSN 1573-1979, Vol. 28, no 2, 195-200 p.Article in journal (Refereed) Published
Abstract [en]

A new high-speed low-power dual modulus prescaler (DMP) topology is proposed. In this DMP, the synchronous part is designed as a divide-by-3/4 divider using a state-selection scheme. Compared with the conventional divide-by-4/5 divider, it has a higher speed by eliminating the NAND-gate introduced critical path delay, as well as a lower power consumption by minimizing the number of full-speed D-type flip-flops (DFF's) required. Based on this topology, a divide-by-15/16 DMP is implemented in the 0.6 mum standard CMOS process. Simulation result shows that a maximum operating frequency of 2.15 GHz is obtained at 3.3 V supply with a power consumption of 11.6 mW. The circuit can operate above 3 GHz with 5 V supply and down to 1.5 V supply voltage with 570 MHz input frequency.

Place, publisher, year, edition, pages
2001. Vol. 28, no 2, 195-200 p.
Keyword [en]
frequency synthesizer, phase locked loop, dual modulus prescaler
Identifiers
URN: urn:nbn:se:kth:diva-20703ISI: 000169206800007OAI: oai:DiVA.org:kth-20703DiVA: diva2:339399
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Ismail, Mohammed
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