The FM1701 is an RF chip manufactured by Fudan with surface mounting technology (SMT). This chip is designed for wireless communication applications and is based on the Nanostandard™ 2.4 GHz transceiver from Texas Instruments. It features a 300 mil SOIC-20 package that complies with RoHS (Restriction of Hazardous Substances) standards and is highly integrated with low power consumption. The FM1701 integrates the RF transceiver function, on-chip microcontroller core, and various supporting functions, which greatly simplifies design-in effort. The FM1701 can support various communication modes, including 802.15.4/BLE, and is equipped with high-speed SPI digital interface, multi-frequency 12-bit ADC, and two programmable counter time (CT) generator modules. It also features a 10-bit DAC (digital-to-analog converter) for antenna tuning, as well as a power amplifier (PA) operation monitoring module that can ensure efficient operation.