从而有效地解决了由于频率控制字的所带来的量化误差，简化了DDS的控制，减少了实现DDS所需资源。
The improvement efficiently(eliminates) the quantitative error of the frequency control word, simplifies the control of DDS, decreases the required source to implement DDS.
根据芯片的特点给出了程序的设计思路，包括AD9833初始化、写控制字、合成频率等。
Given the characteristics of this chip, this paper provides the procedure design methodology that includes AD9833 initiative, write control and synthesis frequency.
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