A 5-GHz low phase noise differential colpitts CMOS VCO
β Scribed by Ming-Da Tsai, ; Yi-Hsien Cho, ; Huei Wang,
- Book ID
- 120450506
- Publisher
- IEEE
- Year
- 2005
- Tongue
- English
- Weight
- 431 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1531-1309
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## Abstract A novel lowβpower differential Colpitts voltageβcontrolled oscillator (VCO) is proposed and implemented in a 0.18βΞΌm CMOS 1P6M process. The proposed circuit topology consists of two singleβended Colpitts LCβtank VCOs, and the differential VCO is obtained by using a crossβcoupled nMOS pa
## Abstract A 5βGHz CMOS VCO with improved phase noise is proposed in this article. A gate voltage boosting technique is realized with only one inductor. The proposed VCO is fabricated in 0.18 ΞΌm CMOS process, and the measured phase noise is β122.7 dBc/Hz@1 MHz when operates at 4.936 GHz, with a po