Hwang, Chanwoong, Hangi Park, Yongsun Lee, Taeho Seong, and Jaehyouk Choi. “A Low-Jitter Ring-DCO-Based Digital PLL Using P/I-Gain Co-Optimization and Optimally Spaced TDC for Flicker-Noise Reduction”. Journal of Integrated Circuits and Systems 9, no. 4 (October 1, 2023). Accessed November 22, 2024. https://jicas.idec.or.kr/index.php/JICAS/article/view/213.