Power supply ripple rejection in tuner oscillator stage

A method of suppressing supply voltage ripple in an output of a tuner oscillator stage, the tuner oscillator stage comprising:

• a transistor having a control electrode, and two electrodes of a main current path,
• a first impedance being coupled between the control electrode and a first terminal,
• a second impedance being coupled between the control electrode and a second terminal,
• a third impedance being coupled between one of the two electrodes of the main current path and the second terminal, and
• an element being arranged in series with the second impedance, the element having a low impedance for AC current and a well-defined voltage drop for DC current, the first and the second terminal being arranged to receive a power supply voltage, the method comprising the steps of:
• allowing a first ripple occurring in a power supply voltage at the first terminal to be applied to said control electrode of said transistor, whereby said transistor passes said first ripple;
• and
• combining, at an output of said tuner oscillaton stage, said first ripple with a second ripple occurring in a power supply voltage supplied to said main current path, whereby said first ripple and said second ripple have opposite signs and compensate for each other.