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阻抗匹配是指在能量传输时，要求负载阻抗要和传输线的特征阻抗相等，此时的传输不会产生反射，这表明所有能量都被负载吸收了。反之则在传输中有能量损失。在高速线路板打样设计中，阻抗的匹配与否关系到信号的质量优劣。
1、PCB走线什么时候需要做阻抗匹配？
不主要看频率，而关键是看信号的边沿陡峭程度，即信号的上升/下降时间，一般认为如果信号的上升/下降时间（按10%～90%计）小
2022-09-09 08:00:02
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ucoslwiptcpip应用心得希望有帮助
2016-07-19 20:41:02
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adc0808的有个应用，c语言源代码控制产生信号源
2016-12-24 10:01:03
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各种matlab算例应用尽有，对matlab的初学者有很大的帮助。
2014-11-24 00:02:02
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支持向量机程序(2)Text Windows Svm
2014-01-19 00:25:14
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GIMP Dynamic Text是GIMP的插件程序，它的工作方式与GIMP嵌入式文本工具相似，但它允许你制作多行文本，制作后可以进行再编辑
2015-03-26 00:02:01
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that sets the tool tip text using the boldface code in the snippet
2013-12-22 11:39:01
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gawk is widely used in shell to process text file.
2013-11-27 14:53:01
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A Stochastic Parts Program and Noun Phrase Parser for Unrestricted Text
2013-12-29 17:17:06
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UML text editor & user manual Dec2007
2016-04-24 10:39:02
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This resource is designed as a text for educational programs in advanced programming and as a reference
2014-01-13 10:28:13
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Encrypts/Decrypts a piece of text using vigenere algorithm.
2014-11-18 06:46:02
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A Code To Get Result of Ping On A Label Or Text Box.
2013-12-28 13:16:02
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these are verilog files but i am uploading in text(notepad) format
2014-11-17 15:31:02
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these files are written in verilog but i am uploading in text format
2017-06-01 20:04:01
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these files are written in verilog but i am uploading in text format
2013-12-21 19:39:06
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these files are written in verilog but i am uploading in text format
2017-06-01 20:05:02
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these files are written in verilog but i am uploading in text format
2014-11-22 18:04:06
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New Text editor similar to notepad with new features...........
2017-06-17 20:21:02
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loading a text file from a directory to your workspace in matlab
2013-12-24 19:59:09
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