摘要
针对高频数字调制信号源中需要处理大量数据且数据处理速度要求较高的问题,提出了一种基于DSP系统的数字合成信号源的设计方案,选用TI公司的TMS320F2812和AD公司的DDS芯片AD9852,构建了信号源的硬件系统.经调试,输出信号的最高频率为120MHz,调制波的调制速度可达144kHz,利用F2812高速的PWM功能,在实际运行中,FSK的调制速度可达到10MHz.
In the light of the problem that mass data needed to be processed and faster speed is required in the high frequency modulate signal source, the design of digital synthesis signal source based on DSP system is put forward. TMS320F2812 and AD9852 are adopted to build the hardware system. After debugging, the maximum output frequency can be up to 120MHz, the modulate speed of modulate wave can reach 144 kHz, in actual operation, maximum speed of FSK can be above 10MHz which takes advantage of F2812＇ s high speed PWM function.
出处
《哈尔滨理工大学学报》
CAS
2006年第1期23-25,29,共4页
Journal of Harbin University of Science and Technology
