The WEA910S22G is a PLL-based high performance frequency synthesizer implemented in 22FDX FD-SOI process with integrated multifunction chirp frequency generator. It generates a 10 GHz fundamental frequency and various frequency ramps with integrated VCO utilizing a 64band autocalibration system. The synthesizer is powered by a 1.5 V and 0.8 V supplies. The WEA910S22G occupies a silicon area of 3150 um x 700 um (2.2 mm2). It exhibits high performance, high integration and flexibility for automotive RADAR applications.