八通道1 Gsps数据采集系统设计与测试

The Design and Test of Eight -channel 1 Gsps Data Acquisition System

介绍了一种基于Flash ADC和FPGA(现场可编程门阵列)的八通道1Gsps数据采集系统的设计与测试。重点讨论了系统设计的关键点、难点,包括1GHz时钟信号的产生和扇出,500MHz源同步数据的捕获、处理,高速PCB设计。另外还介绍了系统的测试,描述了1GHz时钟信号的测试结果以及系统主要性能的测试结果。

The design and test of an eight - channel 1 Gsps data acquisition system based on Flash ADC and FP- GA （Field Programmable Gate Array） is introduced. The key points and difficulties of system design are the keystone of discussion, such as the generation and fan - out of 1 GHz clock signal, the capture and processing of 500 MHz source -synchronized data, the design of high speed PCB. Besides that the paper introduces the test of system, describes the test results of 1 GHz clock signal and the main perforrnanees of system.