关键词: 差分信号, 印制线路板, 内置驱动, 外置驱动

Abstract: Differential signal,also called differential mode signal,is different from the traditional method of one signal line and one ground wire.This article mainly studie show to realize differential signal transmission on printed circuit board,and can be used in high temperature environment of 125℃,which is of great significance to the high temperature power supply of integrated circuit.Based on the external drive board (including the general driver board and special driver board)and built-in driver board contrast signal from the reliability and degree of resistance to high temperature,material cost,power,stability,storage space and other aspects of discussion and exploration,and the circuit board is arranged and the differential signal driving system was optimized processing,finally got the highest reliability of differential signal transmission system.

Key words: voltage differential signal, printed circuit board, built-in driver, the external drive