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Proceedings Paper

A SiGe 6 modulus prescaler for a 60 GHz frequency synthesizer
Author(s): Noorfazila Kamal; Yingbo Zhu; Said F. Al-Sarawi; Neil H. E. Weste; Derek Abbott
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Paper Abstract

A prescaler is widely used in frequency synthesizers in order to handle channel selection. The division ratio has to be chosen carefully to achieve the desired frequency. In this paper, we present a 6 modulus prescaler in a 0.18 μm SiGe BiCMOS technology. The prescaler is part of a 60 GHz frequency synthesizer. In addition, we present a frequency planning for the 60 GHz frequency synthesizer. The prescaler employs an integer-N architecture. The circuit has a programmable divider with a division ratio of 7 and 8 and two counters to control the division ratio. The programmable divider utilizes ECL circuits, while the counters utilise CMOS circuits. Therefore an ECL-to-CMOS converter is used to bridge these two kinds of circuits. Simulation results show that the prescaler operates up to 4 GHz from a 1.8 V supply voltage.

Paper Details

Date Published: 28 December 2007
PDF: 9 pages
Proc. SPIE 6798, Microelectronics: Design, Technology, and Packaging III, 67980E (28 December 2007); doi: 10.1117/12.759762
Show Author Affiliations
Noorfazila Kamal, The Univ. of Adelaide (Australia)
Yingbo Zhu, The Univ. of Adelaide (Australia)
Said F. Al-Sarawi, The Univ. of Adelaide (Australia)
Neil H. E. Weste, The Univ. of Adelaide (Australia)
Macquarie Univ. (Australia)
Derek Abbott, The Univ. of Adelaide (Australia)

Published in SPIE Proceedings Vol. 6798:
Microelectronics: Design, Technology, and Packaging III
Alex J. Hariz; Vijay K. Varadan, Editor(s)

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