A fully integrated 5.5 GHz cross-coupled VCO with high output power using 0.25μm CMOS technology
- Resource Type
- Conference
- Authors
- Dang, J.; Noculak, A.; Haddadinejad, S.; Jungemann, C.; Meinerzhagen, B.
- Source
- 2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS) Electronics, Circuits and Systems (ICECS), 2014 21st IEEE International Conference on. :255-258 Dec, 2014
- Subject
- Components, Circuits, Devices and Systems
Voltage-controlled oscillators
Power generation
Phase noise
Tuning
Varactors
MOSFET
Cross-coupled VCO
MOS varactor
improvement of output power
- Language
In this paper a PMOS-NMOS cross-coupled voltage controlled oscillator (VCO) using 0.25 μm CMOS technology is demonstrated. This VCO consumes 6.6 mW DC power for a supply voltage of 2.5 V. The tuning range is about 15% from 5 GHz to 5.8 GHz, while the control voltage is tuned from 0 V to 2.5 V Over the entire frequency tuning range a constant high output power of around 0 dBm is obtained leading to a good drive ability for mixer circuits. Measured phase noise for the free running VCO is about −90 dBc/Hz and below at 1 MHz offset frequency.