A load-modulation detection component (330, 630) for an inductive coupling reader device, the load-modulation detection component (330, 630) being arranged to receive an antenna voltage signal representative of a voltage across an antenna of the inductive coupling reader device and output at least one load-modulated signal; the load-modulation detection component comprises: a down-converter component (340, 640) arranged to mix the antenna voltage signal with a down-conversion signal to generate a down-converted signal (345, 645); a series capacitive component coupled in series between an output of the down-converter component (340, 640) and an output of the load-modulation detection component; and a switched capacitor resistor circuit coupled between the output of the load-modulation detection component and a first reference voltage; wherein the switched capacitor resistor circuit comprises: a switched capacitive component comprising a first terminal coupled to a switched node and a second node coupled to a second reference voltage; a first switching device coupled between the switched node and the output of the load-modulation detection component (330, 630) and controllable by a first clock signal to alternately couple and decouple the switched node to the output of the load-modulation detection component; and a second switching device coupled between the switched node and the first reference voltage and controllable by a second clock signal to alternately couple and decouple the switched node to the first reference voltage when the switched node is decoupled from the output of the load-modulation detection component; wherein the load-modulation detection component further comprises a clock generator component arranged to receive a carrier frequency reference signal from which a carrier signal applied to the antenna of the inductive coupling reader device is derived, and to generate the first and second clock signals from the carrier frequency reference signal. a down-converter component (340, 640) arranged to mix the antenna voltage signal with a down-conversion signal to generate a down-converted signal (345, 645); a series capacitive component coupled in series between an output of the down-converter component (340, 640) and an output of the load-modulation detection component; and a switched capacitor resistor circuit coupled between the output of the load-modulation detection component and a first reference voltage; wherein the switched capacitor resistor circuit comprises: a switched capacitive component comprising a first terminal coupled to a switched node and a second node coupled to a second reference voltage; a first switching device coupled between the switched node and the output of the load-modulation detection component (330, 630) and controllable by a first clock signal to alternately couple and decouple the switched node to the output of the load-modulation detection component; and a second switching device coupled between the switched node and the first reference voltage and controllable by a second clock signal to alternately couple and decouple the switched node to the first reference voltage when the switched node is decoupled from the output of the load-modulation detection component; wherein the load-modulation detection component further comprises a clock generator component arranged to receive a carrier frequency reference signal from which a carrier signal applied to the antenna of the inductive coupling reader device is derived, and to generate the first and second clock signals from the carrier frequency reference signal. a switched capacitive component comprising a first terminal coupled to a switched node and a second node coupled to a second reference voltage; a first switching device coupled between the switched node and the output of the load-modulation detection component (330, 630) and controllable by a first clock signal to alternately couple and decouple the switched node to the output of the load-modulation detection component; and a second switching device coupled between the switched node and the first reference voltage and controllable by a second clock signal to alternately couple and decouple the switched node to the first reference voltage when the switched node is decoupled from the output of the load-modulation detection component; wherein the load-modulation detection component further comprises a clock generator component arranged to receive a carrier frequency reference signal from which a carrier signal applied to the antenna of the inductive coupling reader device is derived, and to generate the first and second clock signals from the carrier frequency reference signal.