基于PSoC3的高性价比虚拟信号分析仪

摘要

This paper introduced a high cost-effective virtual signal analyzer based gn PSoC3. The integrated system was structured by virtual instrument and ancillary PC software which were communicated with each other by USB 2.0. Virtual instrument was responsible for signal acquisition and generation. MCU,ADC,DAC,USB and signal switching modules were completely integrated in one chip. PC software mainly completed real-time signal display,record and playback,spectrum and signal generation,and it was designed by the graphical development environment Lab VIEW. The system makes full use of the advantages of PSoC3 on analog and digital signals mised design.The system is characterized by high performance,low cost,low power consumption,portability,etc.%以PSoC3为基础设计了一种高性价比的虚拟信号分析仪.系统由虚拟仪器卡和配套PC软件2部分组成,两者采用USB 2.0通信.虚拟仪器卡完成信号采集和产生任务,其中微控制器、ADC、DAC、USB、信号切换等核心模块完全在一块PSoC3芯片上实现.配套PC软件完成信号实时显示、记录回放、频谱分析和信号源生成功能,在图形化开发环境LabVIEW下设计.系统充分利用了PSoC3在模拟和数字信号混合设计上的优势,具有高性能、低成本、低功耗、携带方便等特点.