一些layout会用到的
介质为FR4材料时:75Ω带状线,w=h/8;50Ω带状线,w=h/3;75Ω微带线,w=h;50Ω微带线,w=2h。
·····················································································
许多单片机对电源噪声很敏感,要给单片机电源加滤波电路或稳压器,以减小电源噪声对单片机的干扰。比如,可以利用磁珠和电容组成π形滤波电路,当然条件要求不高时也可用100Ω电阻代替磁珠。
·····················································································
注意高频电容的布线,连线应靠近电源端并尽量粗短,否则,等于增大了电容的等效串联电阻,会影响滤波效果。
·····················································································
1/2盎司厚度的 一般40mil宽可承受1A电流
·····················································································
如果1平方米的铜箔要使其重量为1金衡盎司,也就是31.1035克,则其厚度应该是31.1035/(8.9*100*1000)=35微米,即我们平时所说的做1盎司的PCB板,实际厚度就是1.4mil,即35微米,2盎司就是70微米.
·····················································································
单位是inch
············································································································
无论在哪里做什么,只要坚持服务、创新、创造价值,其他的东西自然都会来的。
【推荐】编程新体验,更懂你的AI,立即体验豆包MarsCode编程助手
【推荐】凌霞软件回馈社区,博客园 & 1Panel & Halo 联合会员上线
【推荐】抖音旗下AI助手豆包,你的智能百科全书,全免费不限次数
【推荐】轻量又高性能的 SSH 工具 IShell:AI 加持,快人一步