Frequency hopping for a capacitive touch screen controller

A device, comprising:

• a force driver configured to generate and apply a force signal to a force node associated with a mutual capacitance between the force node and a sense node to be sensed;
• a sensing circuit having an input coupled to receive a sense signal from the sense node associated with said mutual capacitance between the force node and the sense node to be sensed, said sensing circuit configured to sense the mutual capacitance and generate an output signal indicative of the sensed mutual capacitance;
• and
• a control circuit configured to control the generation of the force signal to alternate between at least two different frequencies by generating a plurality of consecutive pulses which include a given pulse at a first of the at least two different frequencies, and wherein when in a first operating state the control circuit generates a next pulse immediately succeeding the given pulse at a second of the at least two different frequencies, and wherein when in a second operating state the control circuit generates the next pulse immediately succeeding the given pulse at the first of the at least two different frequencies.