WebApr 17, 2024 · Instructions: 1. Select the number of substrate layers required. 2. You will then be presented with a table representing the suggested stack-up for that type of substrate. 3. Modify the variables to examine the effects on the trace Characteristic and Differential Impedance. Number of physical board layers. 4. WebJul 27, 2015 · 这个软件叫POLAR,不知道你用的什么版本?. 6000? 介电常数你告诉PCB厂家你用的频率,让他们给出相应的值(比如FR4一般在3.7-4.5之间)。. 问到参数后,自己大概设计一下,再告诉PCB厂家,哪些是50欧线,让他们细调去控制阻抗,最后发PCB时附上阻抗测量报告,就OK ...
(转载)常见的差分(动)阻抗计算模型(CITS25 软件)_差分 …
WebCITS25(阻抗计算工具)是一款功能强大的PCB阻抗计算工具,它能够帮助永久计算高频电路上的阻抗匹配进行特性阻抗,软件操作简单,易上手,完全免费,有需要的用户请放心 … WebThe Si8000m adds enhanced modelling to predict the finished impedance of multiple dielectric PCB builds and also takes into account the local variations in dielectric constant on close spaced differential structures. The Si8000m assumes negligible insertion loss in the transmission line; should you wish to model insertion loss the Si9000e adds ... how hot is magaluf in october
【阻抗计算软件(CITS25)免费版下载】阻抗计算软件(CITS25) 2.0.3 …
WebOct 19, 2024 · PCB----阻抗计算. 阻抗计算,用CITS25进行计算,软件单位mil与mm可切换。. 一般来说,要求孔间距要小于20分之波长,但这个板上波长与空气中波长是不一样的,对于上述模型,如果上面也是介质上下都是介质,根据公式对介质开根号就对了。. 不过当设置好 … WebThe accuracy of a controlled impedance trace on a PCB is usually critical to the correct performance of the PCB. This note describes some of the practical difficulties you'll sometimes run into when testing a controlled impedance PCB. Sample coupon — Gerber Data mpcd1345.zip (170k) AP117. WebJul 27, 2015 · 介电常数你告诉PCB厂家你用的频率,让他们给出相应的值(比如FR4一般在3.7-4.5之间)。. 问到参数后,自己大概设计一下,再告诉PCB厂家,哪些是50欧线,让 … how hot is madras curry