CMX901 & CMX902 RF Power Amplifiers CML Micro CMX901 and CMX902 RF Power Amplifiers are three-stage, high-gain RF power amplifiers designed to provide a combination of load-ruggedness, low cost, and high efficiency. The CMX901 offers a 130MHz to 950MHz operating frequency range. The CMX902 is focused on VHF/low UHF bands and low operating voltage applications, with a 130MHz to 700MHz frequency range.