Shin, Solmon, Youngsik Kim, and Shinwoong Kim. “A Fractional-N ADPLL-Based GFSK Modulator With ADC-Assisted TDC and DCO Gain Calibration”. Journal of Integrated Circuits and Systems 12, no. 4 (October 1, 2026): 56-65. Accessed October 13, 2026. http://jicas.idec.or.kr/index.php/JICAS/article/view/440.