Driving sensor electrodes for noise measurement

A method of operating a capacitive sensing device having a plurality of transmitter electrodes and a plurality of receiver electrodes, the method comprising:

• receiving resulting signals from the plurality of receiver electrodes during a plurality of noise acquisition bursts while suspending transmission with the plurality of transmitter electrodes, the resulting signals comprising effects of noise;
• introducing at least one time delay between a respective at least one pair of the plurality of noise acquisition bursts;
• and
• determining an interference measurement for a first frequency based on the resulting signals.

An input device, comprising:

• a plurality of transmitter electrodes;
• a plurality of receiver electrodes;
• and
• a processing system, coupled to the plurality of transmitter electrodes and the plurality of receiver electrodes, the processing system configured to:
• receive resulting signals from the plurality of receiver electrodes during a plurality of noise acquisition bursts while suspending transmission with the plurality of transmitter electrodes, the resulting signals comprising effects of noise;
• introduce at least one time delay between a respective at least one pair of the plurality of noise acquisition bursts;
• and
• determine an interference measurement for a first frequency based on the resulting signals.