The low-noise amplifier (LNA) of the SX1261/2 is designed with differential inputs for the benefit of common mode rejection and immunity against noise and interferers.The LC network in front of the differential inputs serves both functions of a balun to convert the single-ended to differential signals and impedance transformation. As shown in Figure 15, this network consists of two capacitors (C11, C12) and one inductor (L6). C13 is an optional element which could be used to provide additional rejection against undesired interferers.