Sampling receiver with inherent mixer functionality

A receiver system comprising:

• a receiver configured to provide a received signal;
• a primary path configured to filter and mix the received signal and generate a primary output signal according to primary mixing and primary filtering, wherein the primary output signal includes a wanted band and an image band and the primary path includes a primary combined filter with primary selected coefficients to provide the primary mixing and the primary filtering;
• a secondary path configured to filter and mix the received signal and generate a secondary output signal according to secondary mixing and secondary filtering, wherein the secondary output signal includes a phase shifted band and the secondary path includes a secondary combined filter with secondary selected coefficients to provide the secondary mixing and the secondary filtering and wherein the secondary mixing incorporates a delay associated with the phase shifted band;
• and
• an adder configured to remove the image band of the primary output signal by the phase shifted band of the secondary output signal and generate a combined output signal comprised substantially of the wanted band.

A method of filtering and mixing, the method comprising:

• providing a filter that includes mixing functionality;
• selecting a mixing function and a filter function;
• selecting a number of branches for the filter based on the selected filter function, wherein the number of branches each comprise an input transistor, a programmable capacitor and an output transistor;
• and
• assigning and adjusting filter coefficients to the branches of the filter according to the selected mixing function by a coefficient generator during operation.