Multi-standard/multi-band adaptive voltage-controlled oscillator

• Published in: 2004 IEE Radio Frequency Integrated Circuits (RFIC) Systems. Digest of Papers pp. 135 - 138
• Main Authors: Tasic, A., Serdijn, W.A., Long, J.R.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Applied sciences; Bluetooth; Circuit optimization; Circuit properties; Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Energy consumption; Exact sciences and technology; Multiaccess communication; Oscillators, resonators, synthetizers; Phase noise; Signal convertors; Transceivers; Tuning; Voltage; Voltage-controlled oscillators; Wireless LAN; Phase noise; Wireless LAN; Power consumption; Voltage standard; Voltage controlled oscillator; Code division multiple access; Phase control; Phase tuning; Wide band transmission
• ISBN: 9780780383333; 0780383338
• ISSN: 1529-2517; 2375-0995
• DOI: 10.1109/RFIC.2004.1320549

An adaptive, multi-standard voltage-controlled oscillator satisfying phase-noise requirements of both 2/sup nd/ and 3/sup rd/ generation wireless standards is described (i.e., 1.8 GHz DCS1800, 2.2 GHz WCDMA, and 2.4 GHz WLAN, Bluetooth and DECT standards). A factor of 12 reduction in power consumption with a phase-noise tuning range of 20 dB is realized by adapting the VCO bias to the desired application. The VCO achieves -123 dBc/Hz, -110 dBc/Hz and -103 dBc/Hz phase noise at 1 MHz offset from a 2.2 GHz carrier at supply currents of 6 mA, 1.2 mA and 0.5 mA, respectively.