介绍了一种基于Flash ADC和FPGA(现场可编程门阵列)的八通道1 Gsps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1 GHz时钟信号的产生和扇出,500 MHz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1 GHz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 FPGA (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 performances of system.
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