1. Phase-Locked Loops: Design, Simulation, and Applications;Best,1999
2. Essentials of Electronic Testing for Digital, Memory & Mixed-Signal VLSI Circuits;Bushnell,2000
3. An Introduction to the Theory of Random Signals and Noise;Davenport,1987
4. Phaselock Techniques;Gardner,1979
5. High-Speed Digital Design: A Handbook of Black Magic;Johnson,1993