摘要
本文利用直接数字频率合成技术,以单片机PIC16F818作为控制中心,选用AD9850作为信号发生器,可编程产生0Hz-400MHz间任意频率信号,并以产生频率为100kHz的正弦信号为实例。采用直接数字频率合成技术产生的信号频率稳定,分辨率高且操作方便,在工程应用中前景非常广泛。
By Direct Digital Synthesis techniques, a programmable 0-400MHz frequency signal is produced with PIC16F818 MCU as a control center and AD9850 as a signal generator. 100 kHz sine signal is obtained. The advantages of direct digital synthesis technology are stable frequency, high resolution and convenient operation, so the technology is widely applied in engineering.
出处
《中国集成电路》
2008年第8期73-76,共4页
China lntegrated Circuit
