Wide tuning range LC-oscillator in 65 nm SOI CMOS, based on switchable secondary inductor.
- Resource Type
- Article
- Authors
- Morf, T.; Kossel, M.; Weiss, J.; Menolfi, C.; Toifl, T.; von Bueren, G.; Buchmann, P.; Schmatz, M.
- Source
- Electronics Letters (Institution of Engineering & Technology). 11/22/2007, Vol. 43 Issue 24, p1364-1365. 2p. 2 Diagrams, 1 Chart, 3 Graphs.
- Subject
- *ELECTRIC oscillators
*COMPLEMENTARY metal oxide semiconductors
*TRANSISTOR-transistor logic circuits
*ELECTRIC inductors
*CAPACITORS
*DIGITAL electronics
- Language
- ISSN
- 0013-5194
An LC-based VCO in standard 65 nm CMOS SOI technology is presented. The VCO exhibits a measured tuning range 6.4–11.3 GHz. The tuning range is significantly extended by a combination of switchable inductor and capacitor banks. The switchable inductor consists of two magnetically coupled spiral inductors. The secondary coil can be either open or closed with a large FET switch, which in closed condition significantly reduces the inductance of the main coil by means of mutual inductance. [ABSTRACT FROM AUTHOR]