Hanli Liu Dexian Tang Zheng Sun 0001 Wei Deng 0001 Huy Cu Ngo Kenichi Okada 0001 A Sub-mW Fractional-N ADPLL With FOM of -246 dB for IoT Applications. 3540-3552 2018 53 IEEE J. Solid State Circuits 12 https://doi.org/10.1109/JSSC.2018.2878836 db/journals/jssc/jssc53.html#LiuTSDNO18