The HMC165S14 is a low-cost SP4T switch in a 14-lead SOIC package for use in antenna diversity, switched filter banks, gain/ attenuation selection, and general channel multiplexing applications. The switch can control signals up to 2.5 GHz and is especially suited for 800-1000 MHz basestation applications*. A 2:4 decoder is integrated on the switch, requiring only 2 control lines and a negative bias to select each RF path. Switch outputs are reflective shorts when "Off". The 2:4 decoder replaces 4 to 8 control lines normally required by GaAS SP4T switches. See positive bias/TTL SP4T HMC241QS16.