基于国产FPGA及DAC的任意波形发生器的设计

Design of the Arbitrary Waveform Generator Based on Domestic FPGA and DAC

摘要:

任意波形发生器作为测试测量设备的一种重要仪器,在航空航天的测量与控制技术领域中得到了广泛应用;当前市场成熟任意波形发生器产品多为国外产品或者国内厂商基于国外FPGA和DAC研制的产品;为了打破技术垄断,提高国产任意波形发生器的自主技术保障能力,研制基于国产芯片的任意波形发生器愈发重要;随着国产芯片设计技术提升,国产FPGA和DAC的性能显著提高,并得到了广泛应用;PXI总线作为当前仪器领域的主要总线类型之一,可以满足大部分测试仪器的通讯要求;基于国产FPGA和DAC器件,从硬件设计和软件设计两个方面出发,成功研制了一款采样率为100 MSa/s的 PXI总线任意波形发生器模块,实现了43 MHz信号输出,通过实验测试了模块的功能和性能,完全满足模块指标要求,充分证明了国产芯片在工程设计中的性能特性。

Abstract:

Arbitrary waveform generators are important instruments for testing and measuring equipment, and they are widely used in the field of current measurement and control technology of the aerospace. The current market mature arbitrary waveform generators are foreign products or domestic manufacturers based on foreign FPGA and DAC developed products. In order to break the monopoly of technology, and improve the domestic arbitrary waveform generator of independent technical support capabilities, it is more important to develop arbitrary waveform generators based on domestic chips. With the improvement of domestic chip design technology, the performance of domestic FPGA and DAC has been improved, and has been widely used. The PXI bus, as one of the main bus types in the current instrument area, meets the communication requirements of most test instruments.Based on domestic FPGA and DAC, from the hardware design and software design two aspects, successfully developed a PXI bus arbitrary waveform generator module with sample rate up to 100MSa/s, and output a 43MHz signal. Through the test of the function and performance of the module, fully meet the requirements of the module indicators, fully proved that the domestic chip in the engineering design of the performance characteristics.