1. An apparatus for processing a signal depending on a received radio frequency signal, comprising: a first semiconductor circuit including a first part of a radio frequency receiver and a first data converter circuit configured to convert a data value of the signal depending on the received radio frequency signal from an integer format to a floating point format; a second semiconductor circuit including a second part of the radio frequency receiver and a second data converter circuit configured to convert data representing the data value in the floating point format to the integer format; and a digital interface circuit configured to transmit data related to the signal depending on the received radio frequency signal from the first semiconductor circuit to the second semiconductor circuit, wherein the first data converter circuit is configured to provide the data representing the data value in the floating point format to the digital interface circuit, and wherein the first data converter circuit is configured such that a most significant bit of a mantissa of the data representing the data value in the floating point format is not provided to the digital interface if the exponent of the data representing the data value in the floating point format is different from a lowest possible exponent in the floating point format.