【通信应用笔记】串扰行为ITA25 RS232传输.pdf AN589 APPLICATION NOTE CROSSTALK BEHAVIOUR OF ITA25 IN RS232 TRANSMISSION INTRODUCTION Crosstalk is a digital interference phenomenon between data lines. The signal transmission by one data line produces parasitic voltages on nearby channels. These disturbances are due mainly to capacitive coupling or electro magnetic interference. This phenomenon occurs particulary when a great number of lines are located in a small area, notably in the case of multiline protection circuits having a high density. The decrease of available area and the increase in the……