摘要
为了适应国际上仪器接口技术的发展,利用FPGA芯片及D/A转换器,采用直接数字频率合成技术,设计实现了一个频率、相位可控的带有LAN接口的正弦信号发生器,阐述电路结构及设计的思路和实现方法,本函数发生器可以方便地进入远控状态和本控状态,以低成本实现较高的性能并且具有很大的扩展性,为进一步研制LXI总线程控仪器做准备。
In order to adapt to development of the international instruments on the interface technology, making use of FPGA chip and D/A converter, using direct digital synthesis technology,a frequency and phase controllable with a LAN interface sine signal generator is designed and realized. And Direct Digital Synthesis （DDS）technology works, circuit design and realization way are introduced. This function generator can easily enter the farcontrol and local -control state,achieve higher performance and a great expansion. Preparing for further development of program - controlled instruments with LXI bus.
出处
《现代电子技术》
2008年第23期81-83,共3页
Modern Electronics Technique
