A 1.8-V 3.6-mW 2.4-GHz Fully Integrated CMOS Frequency Synthesizer for the IEEE 802.15.4. - Manthena Vamshi Krishna; Xuan Jie; Manh Anh Do; Chirn Chye Boon; Kiat Seng Yeo; Aaron V. T. Do (VLSI-SoC (Selected Papers), 2010)