A 3-to-8-GHz fast-hopping frequency synthesizer in 0.18-μm CMOS technology

A frequency synthesizer incorporating one single-sideband (SSB) mixer generates seven bands of clock distributed from 3 to 8GHz with 1-ns switching time. An efficient frequency synthesizing technique producing balanced bands around one center frequency is employed, and the SSB mixer uses double dege...

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Veröffentlicht in:	IEEE journal of solid-state circuits 2006-03, Vol.41 (3), p.566-573
1. Verfasser:	LEE, Jri
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Balancing Bands Circuit properties Circuits Circuits of signal characteristics conditioning (including delay circuits) Clocks CMOS Design. Technologies. Operation analysis. Testing Electric, optical and optoelectronic circuits Electronic circuits Electronics Exact sciences and technology Frequency synthesizers Integrated circuits Mixers Noise levels Oscillators, resonators, synthetizers Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices Signal convertors
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Beschreibung
Zusammenfassung:	A frequency synthesizer incorporating one single-sideband (SSB) mixer generates seven bands of clock distributed from 3 to 8GHz with 1-ns switching time. An efficient frequency synthesizing technique producing balanced bands around one center frequency is employed, and the SSB mixer uses double degeneration topology to increase the linearity. Fabricated in 0.18- mu m CMOS technology, this circuit achieves a sideband rejection of 37 dB while consuming 48 mW from a 2.2-V supply.
ISSN:	0018-9200 1558-173X
DOI:	10.1109/JSSC.2005.864120