说明：  此为DDS AD9851之完整说明介绍到设计电路,对DDS做了详细的介绍以及操作,以及各个电路的解释,供各位参考.
(This is a complete description of the DDS AD9851 introduction to the design of circuits, the DDS has done a detailed introduction and operating, as well as the interpretation of the various circuits for your reference.)