A log-domain multiphase sinusoidal oscillator

A novel multiphase sinusoidal oscillator topology, realized by employing the concept of loo-domain filtering, is introduced in this paper. The realization of the oscillator's topology is achieved by establishing a loop constructed from an inverting and non-invertin log-domain lossy integrators. Attractive benefits offered by the novel topology are the ability for independent electronic tuning of the condition of oscillation and the frequency of oscillation, and the ability for realizing both even- and odd-order oscillators without any manipulation of the basic configuration. The operation of the proposed oscillator has been verified through simulation results. (c) 2007 Elsevier GmbH. All rights reserved.