Clock Buffers and Drivers are used in digital systems to distribute clock signals efficiently and drive clock inputs of various devices. Clock Buffers are designed to replicate and buffer clock signals, ensuring signal integrity and reducing signal degradation as the clock travels across the system. Clock Drivers provide the necessary drive strength to ensure reliable clock signal transmission to connected devices or components. Advanced clock buffers or drivers with higher frequency support, lower output skew, and additional features may have a higher price compared to basic models. When purchasing the buffers and drivers, prioritize factors such as frequency requirements, input/output voltage levels, output skew, and jitter specifications to ensure efficient and accurate clock signal distribution across your digital system. Consider additional features like PLLs, fan-out capability, and advanced signal conditioning for improved signal integrity and compatibility with your system's requirements.