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allegro 需要导出哪些文件嘉立创才能自动识别

allegro 需要导出哪些文件嘉立创才能自动识别
2020-10-12 16:13:29 下载 6 查看 147
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高速PCB设计中的阻抗匹配 你都知道哪些

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 下载 2 查看 5,228
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This software designs the student result management system m ay replace the tedious low effect the m

This software designs the student result management system m ay replace the tedious low effect the manual
2013-12-15 05:45:02 下载 91 查看 1,071
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Student result management system Use the C language realization system 2, the data structure mak

Student result management system Use the C language realization system 2, the data structure making
2013-11-29 14:07:12 下载 131 查看 1,078
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As a result of additional product testing and evaluation, some specifications published in the S3C2

As a result of additional product testing and evaluation, some specifications published in the S3C2440A
2015-11-30 20:37:01 下载 146 查看 1,082
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VB student result management system management system, brings the entire wrap the paper, has the ver

VB student result management system management system, brings the entire wrap the paper, has the very
2015-12-03 10:22:02 下载 154 查看 1,104
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generation of rectangular shape signal. for a rectangular shape of width 1, sinc result also include

generation of rectangular shape signal. for a rectangular shape of width 1, sinc result also included
2015-12-11 00:08:01 下载 190 查看 1,092
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H.264/AVC, the result of the collaboration between the ISO/IEC Moving Picture Experts Group and the

H.264/AVC, the result of the collaboration between the ISO/IEC Moving Picture Experts Group and the
2013-12-30 09:31:08 下载 42 查看 1,072
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ucoslwiptcpip应用心得希望帮助

ucoslwiptcpip应用心得希望帮助
2016-07-19 20:41:02 下载 178 查看 1,024
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adc0808的应用

adc0808的应用,c语言源代码控制产生信号源
2016-12-24 10:01:03 下载 65 查看 1,025
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各种matlab算例应用

各种matlab算例应用,对matlab的初学者很大的帮助。
2014-11-24 00:02:02 下载 120 查看 1,041
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设计和选用电源模块应考虑哪些性能参数

同样的输入输出电压、同样的功率、同样的封装,不同厂家的电源模块,哪个性能更好?对于一个性能优良的电源模块来说,需要测试的项目很多,而且这些性能之间是紧密联系的,本文挑选其中几个方面的性能进行对比阐述。
2022-12-23 20:20:02 下载 1 查看 6,228
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implement huffman algorithm with stl priority-queue, first you must have the file, then the result i

implement huffman algorithm with stl priority-queue, first you must have the file, then the result is
2013-12-20 10:39:22 下载 42 查看 1,118
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postfixComputer, Calculate the postfix expression, such as 45+,which means 4+5,and the result is 9.

postfixComputer, Calculate the postfix expression, such as 45+,which means 4+5,and the result is 9.
2014-01-02 18:50:10 下载 89 查看 1,125
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TI MSC121x This example uses floating point arithmetic to convert the A/D result.

TI MSC121x This example uses floating point arithmetic to convert the A/D result.
2013-12-09 14:00:03 下载 193 查看 1,053
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A small xml parser, the result is lib file for embedded ARM

A small xml parser, the result is lib file for embedded ARM processor
2014-01-08 14:38:10 下载 146 查看 1,120
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计时器 Run mode: * - stop 0 - switch on backlight # - suspend/resume joystick - set next result

计时器 Run mode: * - stop 0 - switch on backlight # - suspend/resume joystick - set next result
2013-12-12 19:46:02 下载 47 查看 1,159
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READ ABOUT ADC0 CHANNEL IN PIC18F452 AND WRITE DE RESULT IN PORTD

READ ABOUT ADC0 CHANNEL IN PIC18F452 AND WRITE DE RESULT IN PORTD
2017-07-03 10:49:02 下载 159 查看 1,092
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628512在实际电路中的应用图纸,实际应用的意义.

628512在实际电路中的应用图纸,实际应用的意义.
2013-12-28 00:22:08 下载 125 查看 1,071
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JAVA相关基础知识 1、面向对象的特征哪些方面 抽象: 抽象就是忽略一个主题中与当前目标无关的那些方面

JAVA相关基础知识 1、面向对象的特征哪些方面 抽象: 抽象就是忽略一个主题中与当前目标无关的那些方面,以便更充分地注意与当前目标有关的方面。
2017-01-04 00:29:02 下载 147 查看 1,068
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