Patent ID: 8259877

Claim:
A method of automatic control of a level of gain of at least one analog amplifier ( 10 ) comprising: receiving ( 28 ) a digital feedback signal (S AGC ) for controlling the level of gain of the analog amplifier ( 10 ); and processing ( 30 ) the digital feedback signal to deliver a gain driving signal (S DRV ) to said analog amplifier ( 10 ), wherein processing comprises: regulating ( 34 ) an evolution of the gain driving signal (S DRV ) in a stepwise manner over time, by limiting each step change of the driving signal S DRV to a predetermined amplitude evolution; and maintaining each step change at a constant amplitude value for a predetermined amount of time before a next stepwise amplitude evolution, the predetermined amount of time being higher than the amount of time at which the amplitude of the digital feedback signal received is maintained constant, said gain driving signal (S DRV ) evolving in the same manner as the digital feedback signal (S AGC ).