Low Power Locking Detector for Frequency Calibration of Multi-Frequency Injection Locked Oscillators

This paper presents a locking detector used as a first stage in the frequency calibration techniques for Multi-Frequency Injection Locked Oscmators (MFILO). It provides a high detection level and relaxes design constraints on the calibration circuit that follows. This technique will allow lower levels of power consumption with smaller occupied area for the frequency calibration circuits.