摘要
介绍了在测试系统中选用AD7891芯片来实现多路数据的高速采集,数据的读写和工作时序的控制全部是通过TMS320LF2407 DSP的I/O口来实现,并利用PI74LVCC4245A芯片解决了DSP和AD7891的电平匹配问题,试验结果表明这种方法能够满足系统的要求,而且硬件电路也容易实现。
A high speed acquisition system for multi-channel data is introduced. AD7891 is adopted in the system. Data read/write and operating timing sequence is realized through I/ O ports of DSP TMS320LF2407, and PI74LVCC4245A is used to solve the level matching problem between DSP and AD7891. The system requirement can be satisfied by this method and the hardware circuit is simple.
出处
《电测与仪表》
北大核心
2007年第2期54-56,共3页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(60572001)
