基于高速D/A AD9739 2.5GSPS的宽带信号源  

The high-speed D/A AD9739-based wideband signal source

作　　者：唐大伟[1] 吴琼之[1] 孙宁霄[1] 金兆健[1] 

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《电子设计工程》2013年第20期45-47,共3页Electronic Design Engineering

摘　　要：基于雷达对高分辨率的需求,论述了以FPGA为控制核心,基于两片ADI公司的高速D/A AD9739 2.5GSPS芯片同步工作,完成了一种宽带信号源的软硬件设计。描述了AD9739的工作原理,给出了AD9739与VIRTEX-6 FPGA的接口设计方案以及系统原理框图,并利用频谱仪测试了宽带信号源的性能指标,实测表明整体指标达到设计要求。For enhance Radar's resolution, controlled by FPGA, a system structure using two high-speed D/A AD9739s which are under the synchronous working is discussed. The working principle of the AD9739 is described in detail, and AD9739 with Xilinx corporation Virtex-6 FPGA interface design and the system block diagram are proposed. The performance index is tested by the spectrum analyzer. The practice proved the overall targets can meet the design requirements.

关 键 词：宽带信号源 高速DAC FPGA DDS AD9739 

分 类 号：TN79[电子电信—电路与系统]