The PE44951 is a highly integrated two-way phase shifter with digitally controlled step attenuators that can be used across the 6.025 to 7.525 GHz frequency range. Each path is controlled through its serial peripheral interface (SPI) control pins. The PE44951 is ideal for wireless infrastructure applications, such as massive multiple input, multiple output (mMIMO), macro and micro base stations, next generation 5G solutions, and small cell applications. This phase shifter and attenuator are manufactured using pSemi’s UltraCMOS® process, a patented variation of silicon-on-insulator (SOI) technology, which features high compactness, excellent isolation, and low insertion loss.