Mixer of a near field communication (NFC) receiver device supporting single-ended and differential inputs

A method for operating a mixer of a Near field communication (NFC) receiver device, the method comprising:

• receiving an input signal from an input unit;
• sampling the input signal and storing electrical charge based on the sampled input signal in order to generate a differential output signal using a sample and hold circuit;
• switching the sample and hold circuit between different operational modes based on whether the input signal is a single-ended input signal or a differential input signal wherein switching the sample and hold circuit between the different operational modes comprises setting the sample and hold circuit to a single-ended input operational mode in response to the input signal being a single-ended input signal and setting the sample and hold circuit to a differential input operational mode in response to the input signal being a differential input signal;
• and
• outputting the differential output signal from a differential output unit, wherein the input unit comprises a first input terminal and a second input terminal, wherein the sample and hold circuit comprises a first switch connected between the first input terminal and the second input terminal, wherein the differential output unit comprises a first output terminal and a second output terminal, and wherein the sample and hold circuit further comprises a second set of switches and a plurality of capacitors connected between the first and second input terminals and the first and second output terminals.