Oscillator circuit with temperature compensation function

An oscillator circuit with temperature compensation function, comprising:

• a gain stage;
• a current mirror unit, being coupled to the gain stage for supplying at least one bias current to the gain stage;
• a clamping current supplying unit, being coupled to the current mirror unit and the gain stage for supplying a clamping current to the gain stage;
• a noise inhibiting unit, being coupled to the gain stage and the current mirror unit, and used for producing a first reference current to the current mirror unit according to an output signal of the gain stage;
• wherein the noise inhibiting unit stops the supplying of the first reference current while a voltage level of the output signal is greater than a specific threshold voltage;
• a compensation unit, being coupled to the current mirror unit;
• and
• a reference signal generating unit, producing a reference signal to the compensation unit according to a temperature parameter of the gain stage and an ambient temperature, such that the modulation of a specific oscillator frequency of the output signal of the gain stage is achieved after the compensation unit generates a second reference current to the current mirror unit for adjust the clamping current based on the reference signal.