PCB阻抗控制PCB Impedance Control:Formulas and ResourcesDouglas Brooks, President UltraCAD Design, Inc.Many of the formulas we use for PCB impedance calculations are readily available, but not all of them. In fact, while we are often quick to say that PCBs begin to look like transmission lines when rise times are fast enough, and perhaps toss out a few formulas for our readers, we miss at least three factors when we do so. Not complete: It's not enough to say that Zo equals some complex formula. We may also want to know other parameters, such as propagation time, intrinsic capacitance, intrinsic inductance, and the effects of device loading and terminations. I know of no single source where all of these formulas are made available. Too complex: Even if the formulas are available, they can be so com……
猜您喜欢
推荐内容
开源项目推荐 更多
热门活动
热门器件
用户搜过
随便看看
热门下载
热门文章
京公网安备 11010802033920号
Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved
评论