F2977 Broadband SP2T RF Switch Renesas Electronics F2977 Broadband SP2T RF Switch features 50Ω port impedance, high linearity, and wide bandwidth. The F2977 RF Switch provides low insertion loss across the entire bandwidth. This SP2T Switch is optimized from 30MHz to 6GHz to support many wireless RF applications. The F2977 operates from a 3.3V to 5.0V supply voltage and is compatible with either 1.8V or 3.3V control logic. The F2977 features high isolation, high linearity, low distortion, and fast switching. Typical applications include cellular Base Transceiver Station (BTS) and transmit/receive switching.