An Ultra-Low Power, Adaptive All-Digital Frequency-Locked Loop With Gain Estimation and Constant Current DCO.
Imran AliHamed AbbasizadehMuhammad Riaz ur RehmanMuhammad AsifSeongJin OhYoungGun PuMinjae LeeKeum-Cheol HwangYoungoo YangKang-Yoon LeePublished in: IEEE Access (2020)