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文中主要论述AD9850工作原理及利用该芯片实现的高频信号源系统。为了得到更宽频率范围的频率输出,本系统采用了先进的DDS+PLL技术。该高频信号源可实现FM调制方式,幅值和频率均可调,频率范围为10kHz～100MHz。
The article mainly discusses the working principle of AD9850 and the high-frequency signal source system realized by using the chip. In order to get a wider frequency range of frequency output, the system uses advanced DDS + PLL technology. The high-frequency signal source can achieve FM modulation, amplitude and frequency are adjustable, the frequency range of 10kHz ~ 100MHz.