How MIPI RFFE Controllers Improve RF Front-End Test Efficiency
1. The Hidden Challenge Behind RF Testing As wireless communication technologies evolve, RF front-end (RFFE) modules—critical for signal transmission and reception—are becoming increasingly complex. From multi-band smartphones to massive antenna arrays in 5G base stations, these modules contain a variety of components such as power amplifiers (PAs), filters, and switches. However, testing and controlling these devices present several key challenges: Fragmented protocols: Coexistence of SPI, I2C, and proprietary interfaces Varied voltage levels: Mixed use of 1.8V, 2.5V, and 3.3V Diverse clock speeds: Conflicting needs between...