摘要
设计了一个以AT89S52为核心控制器件,直接控制两片DDS芯片AD9850,通过并行控制方式实现的正弦信号发生器,并且利用差动放大芯片AD830进行正弦信号幅值调节。该系统具有频率、相位可变,幅值可调,并且能够输出稳定的相位差和振幅调制的功能。
The article designs a sinusoidal signal generator which adopts the AT89S52 as core control devices to control the two DDS chips of AD9850 directly and achieved through parallel control mode. A differential amplifier chip AD830 is selected for sinusoidal signal amplitude adjustment. The system has the function of variable frequency and phase, adjustable amplitude, and can output a stable phase and amplitude modulation.
出处
《山西电子技术》
2014年第1期45-47,共3页
Shanxi Electronic Technology
