TEMPERATURE COMPENSATED OSCILLATOR CIRCUIT

摘要

Dual mode oscillator (9), e.g. to be used in a temperature compensated circuit in which during operation at least a first oscillation having a fundamental frequency and a second oscillation having a second frequency occurs, which second oscillation is substantially equal to a, preferably the third, harmonic of the first frequency, both said oscillations generating a first and a second oscillation signal, respectively, that may be combined to generate a signal having a substantially linear temperature dependency, the oscillator (9) comprising an electronic controllable switch (S1) connected in such a way that in a first state the oscillator (9) oscillates in the first oscillation and in its other state the oscillator (9) oscillates in the second oscillation, the oscillator (9) having at least one output supplying alternately said first (f1) and said second oscillation signal (f3).