Design and Implementation of a Multiphase Sinusoidal Oscillator Using Ic Lt1228

Abstract

This research paper focuses on the development and implementation of a multiphase sinusoidal oscillator (MSO) based on the LT1228 integrated circuit. The proposed circuit is designed to produce sinusoidal signals with precise phase shifts, making it well-suited for used in communication systems, signal processing, and instrumentation. The oscillator operates on a transconductance-based principle, utilizing the operational transconductance amplifier (OTA) characteristics of the LT1228. Theoretical analysis, design equations, and simulation results validate the MSO’s capability to achieve the desired frequency and phase stability. Additionally, the design approach is informed by prior research on voltage-mode and current-mode MSOs, emphasizing electronic tunability and stability. A major benefit of this circuit is its incorporation of negative feedback, which enhances stability and performance, all while utilizing just one resistor and one capacitor, leading to a simplified design