【通信应用笔记】串扰行为ITA25 RS232传输.pdf

【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