Citation link:
Authors:
Hristov, Marin Hristov; Rashev, Ivan Krasimirov; Arabadzhiev, Dobromir Nikolov
Title:
CMOS VCO design
Date of Issue:
2006
Is Part of:
Proceedings of the Technical University – Sofia, 56(1), 2006, pp. 109-113
Publisher:
TU - Sofia
Identifiers:
1311-0829 [issn]
Type:
Article
Language:
eng
Subject:
QVCO; negative resistance; bluetooth; CMOS technology
Abstract:
In this article , the design of quadrature voltage controlled oscillator (Q-VCO), which covers the Bluetooh requirements is described. A methodology which makes easy the design of oscillators with negative resistance is shown. Standard 0.35um CMOS process was used. The circuit is fully monolithic, and this decreases its price. The oscillator has output buffers, which ensure the necessary power of the output signal. The supply voltage is 1,5 volts and is limited by the used technology and the parameters necessary for the normal work of the oscillator. The overall power consumption of the oscillator and the output buffers is 107 mW, and the phase noise is -108dBc/Hz, at 600 kHz from the carrier.
Description:
Reviewer prof. Tihomir Takov. - Formulas, diagr. - References, pp. 113
