The SKY19243-686LF from Skyworks is a Single-pole Double-throw (SPDT) Antenna Tuning Switch that operates from 0.1 to 3.8 GHz. The switching is controlled by an integrated GPIO interface with two control pins. Depending on the logic voltage level applied to the control pins, the antenna port can be either connected to one of the two switched RF outputs or to both switch outputs simultaneously. It is available in a 10-lead QFN package that measures 1.5 x 1.1 x 0.5 mm and is ideal for 4G LTE, smartphones, mobile antenna management and aperture & impedance tunning applications.