Random modulation of charge-pump noise phases

An apparatus comprising:

• a pixel array including at least one pixel circuit, the at least one pixel circuit configured to generate an input signal in response to receiving incident light thereon;
• a pixel controller coupled to the pixel array, the pixel controller configured to provide a reset control signal to the pixel array;
• and
• a correlated double sampling (CDS) circuit coupled to the pixel array, the CDS circuit configured to:
• receive the input signal from the pixel array;
• sample a reset component of the input signal during a first sampling time to generate a reset component sample, the first sampling time being at a first offset from the reset control signal and prior to a settling time of the at least one pixel circuit;
• sample a signal component of the input signal during a second sampling time to generate a signal component sample;
• and
• determine an output signal based on the reset component sample and the signal component sample.