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延安YL18-2020S

延安YL18-2020S

  • Category:延安Network transformer
  • Views:Times
  • Release date:2020-03-25
  • Description
  • Parameters
  • Characteristics

Speed:                    10/100BASE-T

Number of Ports:    Single

Circuit Features:     NON PoE

Package:                 SMT

Isolation Voltage:   1500Vrms

Temperature:          0℃ to 70℃


网络优化资料:

显示灯线和差分信号线对要开展必需的防护,二者要确保间距充足远,假如必需应用GND平面图开展防护;

留意选购pulse网络滤波器集成ic侧管理中心抽头对地的滤波电容要尽可能挨近变电器引脚,确保导线最短遍布电感器最少;YL18-2020S

用以联接GND和PGND的0欧姆电阻或是电容器要置放在地分隔线上;

PHY集成ic的仿真模拟开关电源不必占有大规模平面图,从部分铜皮根据布线、磁珠、布线拖到变电器集成ic侧管理中心抽头顶;

PHY集成ic与选购pulse网络滤波器中间早已沒有VDD,将PHY集成ic与变电器中间的平面图层地区界定为GND,那样能够 断开来源于VDD平面图的噪音方式。

沿双板PCB的边沿(无需包起来PGND,见图8)每过250mil打一个接地装置焊盘,这种焊盘排能够 断开双板噪音向外辐射源的方式,减少对PGND静地的危害;双板的PGND、GND根据镖孔和构造相互连接,确保系统化电位差的统一;

确保开关电源平面图和地平面图中间的优良退耦(低阻),开关电源平面图最好是和地平面图邻近;


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