Nonlinear PFD free of glitches and blind zone for a fast locking PLL with reduced reference spur. - Abdul Majeed Kottampara Kuppalath; Binsu J. Kailath (IEICE Electron. Express, 2016)

PLL architecture with a composite PFD and variable loop filter. - Abdul Majeed Kottampara Kuppalath; Binsu J. Kailath (IET Circuits Devices Syst., 2018)