Apparatus

An apparatus comprising:

• an antenna pin for coupling to an antenna, the antenna pin coupled to at least a first antenna inductor in series with a second antenna inductor, wherein the second antenna inductor is further coupled to a first reference pin configured to provide a first reference voltage;
• a first set of differential input-output pins comprising a first input-output pin and second input-output pin, wherein the first input-output pin is coupled to a first inductor in series with a second inductor, and wherein the second inductor is further coupled to the second input-output pin, wherein the apparatus further comprises a first supply terminal coupled between the first inductor and the second inductor to receive a first supply voltage, wherein
• the first inductor is configured to magnetically couple with the first antenna inductor and the second inductor is configured to magnetically couple with the second antenna inductor for transmission of signalling received at the first set of differential input-output pins from the antenna when it is coupled to the antenna pin;
• and
• a function switch comprising:
• a second set of differential input-output pins comprising a third input-output pin and fourth input-output pin, wherein the third input-output pin is coupled to a third inductor in series with a fourth inductor, and wherein the fourth inductor is further coupled to the fourth input-output pin, and wherein the function switch comprises a first switch between the third inductor and the fourth inductor;
• wherein the third inductor is configured to magnetically couple with the first antenna inductor and the fourth inductor is configured to magnetically couple with the second antenna inductor for provision of signalling received from the antenna pin to the second set of differential input-output pins;
• a third set of differential input-output pins comprising a fifth input-output pin and sixth input-output pin, wherein the fifth input-output pin is coupled to a fifth inductor in series with a sixth inductor, and wherein the sixth inductor is further coupled to the sixth input-output pin, and wherein the function switch comprises a second switch between the fifth inductor and the sixth inductor;
• and
• wherein the fifth inductor is configured to magnetically couple with the first antenna inductor and the sixth inductor is configured to magnetically couple with the second antenna inductor for provision of signalling received from the antenna pin to the third set of differential input-output pins.