A 12MHz/38.4MHz Fast Start-Up Crystal Oscillator using Impedance Guided Chirp Injection in 22nm FinFET CMOS

Low power mobile and edge computing systems requires fast wakeup for pleasant end user experience and for efficient data processing. Fast start up oscillators are needed to enable system to periodically go to sleep state and wakeup. Oscillators implementing techniques like negative resistance (Rn) boosting [1] or external power injection [2–5] demonstrated sub$- 100 \mu \mathrm{s}$ startup time. T...