摘要
正弦波信号作为一种基准信号广泛应用于各种电路中，产生正弦波信号的方法有很多种，DDS（Direct Digital Frequency Synthesis直接数字频率舍成器）作为一种新型技术，具有相对带宽宽，频率转换时间短，频率分辨率高，控制灵活方便等优点，成为现代频率合成技术中的佼佼者。AD公司生产的AD9833是一款低功耗、可编程波形发生器，在Mega8单片机的控制下可生成0-12．5MHz的正弦波，还可以生成三角波和方波。经现场验证，基于Mega8单片机和AD9833的正弦波信号发生器，可以非常方便地生成各种频率的正弦波。
Sine wave generator worked as a kind of standard signal is applied to all kinds of circuits,There are many ways to produce sine wave signal,but DDS(Direct Digital Frequency Synthesis)is a new technology,it has a wider BW,shorter frequency respondence,higher difference,more active control.It has become the leader of DDS technology.AD9833 is a lower power consumption programmer generator under MCU control,it can output 0-12.5Hz sine wave or triangle and square wave.
出处
《石油仪器》
2007年第6期70-72,102,共3页
Petroleum Instruments
