Analysis and Design of an Ultra-Low-Power Bluetooth Low-Energy Transmitter With Ring Oscillator-Based ADPLL and 4 $\times$ Frequency Edge Combiner.
Xing ChenJacob BreiholzFarah B. YahyaChristopher J. LukasHun-Seok KimBenton H. CalhounDavid D. WentzloffPublished in: IEEE J. Solid State Circuits (2019)