关键词: FPGA, 传输延时, 自动测试设备, 信号同步

Abstract: To meet the demand of signal synchronization between channels of integrated circuit automatic test equipment (ATE), a measure method of excitation signal transmission delay error of ATE based on FPGA is proposed. This method has a simple hardware structure and makes full use of the characteristics of FPGA and ATE. Experimental results show that this method achieves an error of less than 4% compared with the measurement results of an oscilloscope, and can meet the measurement requirement of excitation signal frequency of less than 200 MHz.

Key words: FPGA, transmission delay, automatic test equipment, signal synchronization