文章摘要信息 关键词 ： DDS 相位累加器 AD9852 [gap=721]Keywords : DDS;the phase accumulator;AD9852
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...,现场可编程门阵列,相位累加器,数/模转换器 [gap=449]Key Words: Direct Digital Frequency Synthesizer, FPGA, Phase Addition, DAC ...
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... accumulator register 累加寄存器 accumulator, phase 相位累加器 accuracy 准确度；准确值 ...
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循环相位累加器 cycle phase adder ; cycle phase accumulator
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该方案利用了相位累加器的所有有效位，使DDS的性能得到提高，杂散度抑制比达到了- 70 d B。
This scheme utilizes all effective bits of phase accumulator address, and so can improve the performances of DDS, which has -70 dB of spur suppression value.
模块中的相位累加器，使系统具有较高的频率分辨率，可实现快速频率切换，很容易实现频率、相位和幅度的数控调制，有广泛的应用价值。
The phase adder in the model is widely applied which could enable system to hold high frequency revolution, fast frequency switching, and easily digital modulating of the signal's phase and amplitude.
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