摘要
采用直接数字频率合成技术,设计了一种采用ARM控制以AD9833为核心的信号源,由ARM对输入数据进行处理,进而执行对DDS芯片编程,控制产生所需的频率、相位和波形信号,并由LCD显示各种信息,最后详细分析了该信号发生器的系统结构、软硬件设计和具体实现电路。
Based on Direct Digital Synthesizer technology, a signal source, with AD9833 as the core and controlled by ARM, is designed. The input data are processed by ARM, and DDS chip is programmed in order to generate the signal of required frequency, phase and waveform. All kinds of information are displayed on LCD. Finally, this paper analyzes in detail the specific circuit, hardware and software designs of the signal generator.
出处
《通信技术》
2009年第10期54-56,共3页
Communications Technology
