摘要
该信号发生器以单片机AT89C52和D/A转换器DAC0832芯片为核心进行设计。通过AT89S52控制DAC0832产生所需电流,然后使用运算放大器LF393将其电流输出线性地转换成0～5 V电压输出。通过程序控制,可以产生一系列有规律的波形。该系统具有精度高、抗干扰性强、性能稳定、升级方便等特点,具有较高的应用价值。
The signal generator has the microeontroller AT89S52 and D/A converter DAC0832 as the hardcore. Controlled by the AT89S52, DAC0832 produces the required current. Then the operational amplifier LF393 linearly converts the current to a 0 - 5 V voltage. Through the control of the program, the system can produce a series of reg- ular waves. The system has the advantages of high precision, strong anti-interference, stable performance, easy up- grade and high practical value.
出处
《电子科技》
2012年第6期104-106,114,共4页
Electronic Science and Technology
