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Design criteria for high‐frequency RC ‐active sinusoidal oscillators
Author(s) -
Carlosena Alfonso,
Martinez Pedro A.,
Porta Sonia
Publication year - 1992
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490200405
Subject(s) - total harmonic distortion , control theory (sociology) , oscillation (cell signaling) , distortion (music) , computer science , harmonic , mathematics , electronic engineering , topology (electrical circuits) , engineering , voltage , physics , acoustics , electrical engineering , amplifier , control (management) , cmos , combinatorics , artificial intelligence , biology , genetics
High‐frequency RC ‐active sinusoidal oscillators using two op amps are surveyed from a unified viewpoint. Information about their performance is obtained using linear and non‐linear approaches. As a consequence of this analysis, two main criteria are proposed to optimize these systems and to select the best configuration for a given application. the first criterion is related to the feasibility of obtaining an oscillation frequency independent of the op amps used in the design. the second criterion is connected with the level of harmonic distortion present in the signal. Experimental measurements obtained agree closely with the theoretical analysis carried out.