In chapter two, design considerations of DLL are introduced. Some commonly used circuits of the phase detectors, charge pump, and voltage-controlled delay cells are classified.

• 在第二章中，延迟锁定迴路的设计考量将会被提出。一些常用的相位侦测器、充放电泵及电压控制延迟单元电路也将分类说明。