id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-7903	Qi, Yanfeng; Peng, Liangfu	Design and Implementation of Precision Phase Measurement Module Base on Digital Dual Mixer Time Difference	2023	6	.pdf	application/pdf	3278	158	58	Given the problem that it is difficult to generate a common clock source with fine frequency changes inside the FPGA chip, the Si5338 chip is used to generate 4 differential clocks, and the communication with the FPGA is completed through the I2C protocol, and the differential signal is converted into a single-ended clock source inside the FPGA as two The common standard frequency of clock signals with the same frequency and different phases, realize the amplification of the phase difference measurement range, making the measurement accuracy reach sub-nanosecond level. The input FPGA clock is 200MHz, and two same frequency clocks with a difference of 10 º are generated through the MMCM of FPGA.	cache/ajst-7903.pdf	txt/ajst-7903.txt