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教程资料  FPGA64的VHDL源代码

VHDL source codes of the FPGA64, a fpga implementation of the C64 computer. Version for the c-one fpga board.

https://www.eeworm.com/dl/fpga/doc/17492.html

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模拟电子  2012TI电子设计大赛——微弱信号检测装置

微弱信号检测装置四川理工学院&nbsp;刘鹏飞、梁天德、曾学明摘要：本设计以TI的Launch&nbsp;Pad为核心板，采用锁相放大技术设计并制作了一套微弱信号检测装置，用以检测在强噪声背景下已知频率微弱正弦波信号的幅度值，并在液晶屏上数字显示出所测信号相应的幅度值。实验结果显示其抗干扰能力强，测量精度高。关键词： ...

https://www.eeworm.com/dl/571/20526.html

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Abstract: This tutorial discusses proper printed-circuit board (PCB) grounding for mixed-signal designs. Formost applications a simple method without cuts in the ground plane allows for successful PCB layouts withthis kind of IC. We begin this document with the basics: where the current flows. Lat ...

https://www.eeworm.com/dl/571/20666.html

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模拟电子  应用笔记-校准激光驱动器POT和DAC

Abstract: A laser module designer can use a fixed resistor, mechanical pot, digital pot, or a digital-to-analogconverter (DAC) to control the laser driver&#39;s modulation and bias currents. The advantages of a programmablemethod (POT or DAC) are that the manufacturing process can be automated and ...

https://www.eeworm.com/dl/571/21185.html

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模拟电子  VGA 8:1 multiplexer reference

This reference design (RD) features a fullyassembled and tested surface-mount printed circuitboard (PCB). The RD board utilizes the MAX48851:2 or 2:1 multiplexer and other ICs to implement acomplete video graphics array (VGA) 8:1multiplexer.VGA input/output connections are provided to easilyinterfac ...

https://www.eeworm.com/dl/571/21426.html

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PCB相关  PCB Design Considerations and Guidelines for 0.4mm and 0.5mm WLPs

Abstract: Using a wafer-level package (WLP) can reduce the overall size and cost of your solution.However when using a WLP IC, the printed circuit board (PCB) layout can become more complex and, ifnot carefully planned, result in an unreliable design. This article presents some PCB designconsidera ...

https://www.eeworm.com/dl/501/21612.html

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PCB相关  多层印制板设计基本要领

【摘要】本文结合作者多年的印制板设计经验，着重印制板的电气性能，从印制板稳定性、可靠性方面，来讨论多层印制板设计的基本要求。【关键词】印制电路板；表面贴装器件；高密度互连；通孔【Key words】Printed Circuit Board；Surface Mounting Device；High Density Interface；Via一．概述印制板（PCB－Printed Circuit ...

https://www.eeworm.com/dl/501/22266.html

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PCB相关  高性能覆铜板的发展趋势及对环氧树脂性能的新需求

讨论、研究高性能覆铜板对它所用的环氧树脂的性能要求，应是立足整个产业链的角度去观察、分析。特别应从HDI多层板发展对高性能CCL有哪些主要性能需求上着手研究。HDI多层板有哪些发展特点，它的发展趋势如何——这都是我们所要研究的高性能CCL发展趋势和重点的基本依据。而HDI多层板的技术发展，又是由它的应用市场——终 ...

https://www.eeworm.com/dl/501/22271.html

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PCB相关  PCB设计问题集锦

PCB设计问题集锦问：PCB图中各种字符往往容易叠加在一起，或者相距很近，当板子布得很密时，情况更加严重。当我用Verify Design进行检查时，会产生错误，但这种错误可以忽略。往往这种错误很多，有几百个，将其他更重要的错误淹没了，如何使Verify Design会略掉这种错误，或者在众多的错误中快速找到重要的错误。　　　答 ...

https://www.eeworm.com/dl/501/22305.html

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电源技术  利用纤巧型负载点电路来简化电源电压的跟踪和排序

&nbsp; Multiple-voltage electronics systems often requirecomplex supply voltage tracking or sequencing, whichif not met, can result in system faults or even permanentfailures in the fi eld. The design diffi culties in meetingthese requirements are often compounded in distributedpowerarchitecture ...

https://www.eeworm.com/dl/505/24296.html

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