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Dual-mode multi-phase sinusoidal oscillator with equal amplitudes

Jie Jin ; Jishou University
Lin Xiao ; Jishou University
Xi Yang ; Jishou University
Bolin Liao ; Jishou University
Shu Li ; Jishou University

Puni tekst: engleski PDF 1.332 Kb

str. 211-220

preuzimanja: 266



This paper presents a current-mode multiphase sinusoidal oscillator (MSO) employing current-controlled current differencing units (CCDUs). The proposed oscillator consists of only one CCDU and one grounded capacitor for each phase, and it can generate arbitrary 2n-phase current-output signals (n≥2) with equally spaced in phase and equal amplitude. Compared with the related reported current differencing unit (CDU) based configurations, the proposed structure has better performance in terms of the number of required passive resistors, the ability for electronic adjustment of the OF and OC, and the easy fabrication of integrated circuit (IC). Moreover, the described oscillator has low-sensitivity performance and high-output impedance. The theoretical results are confirmed by PSPICE simulation.

Ključne riječi

current-controlled current differencing unit (CCDU), multiphase sinusoidal oscillator (MSO), current-mode circuit, CMOS analogue-integrated circuits

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