Hybrid PLL system for spin torque oscillators utilizing custom ICs in 0.18 μm BiCMOS. - Martin Kreißig; Steffen Wittrock; Florian Protze; Romain Lebrun; Karla J. Merazzo; Marie Claire Cyrille; Ricardo Ferreira 003; Paolo Bortolotti; Ursula Ebels; Vincent Cros; Frank Ellinger (MWSCAS, 2017)