MQX最早是Precise Software technologies公司1989年開發(fā)，2009年飛思卡爾收購后，開放源代碼。MQX采用微內(nèi)核結(jié)構(gòu)，具有標(biāo)準(zhǔn)的API接口、模塊化架構(gòu)、TCP/IP協(xié)議棧和USB協(xié)議棧等，因此無論在實(shí)時性、裁減性還是移植性上都具有卓越的性能.
標(biāo)簽： MQX 嵌入式 實(shí)時操作系統(tǒng) 內(nèi)核
上傳時間： 2013-12-20
上傳用戶：dysyase
The main objective of this book is to present all the relevant informationrequired for RF and micro-wave power amplifier design includingwell-known and novel theoretical approaches and practical design techniquesas well as to suggest optimum design approaches effectively combininganalytical calculations and computer-aided design. This bookcan also be very useful for lecturing to promote the analytical way ofthinking with practical verification by making a bridge between theoryand practice of RF and microwave engineering. As it often happens, anew result is the well-forgotten old one. Therefore, the demonstrationof not only new results based on new technologies or circuit schematicsis given, but some sufficiently old ideas or approaches are also introduced,that could be very useful in modern practice or could contributeto appearance of new ideas or schematic techniques.
標(biāo)簽： Amplifier Microwave Design Power
上傳時間： 2013-12-22
上傳用戶：vodssv
This document is a quick reference to some of the formulas and important information related to optical technologies. It focuses on decibels (dB), decibels per milliwatt (dBm), attenuation and measurements, and provides an introduction to optical fibers.
上傳時間： 2013-10-17
上傳用戶：libenshu01
Agilent AN 154 S-Parameter Design Application Note S參數(shù)的設(shè)計與應(yīng)用 The need for new high-frequency, solid-state circuitdesign techniques has been recognized both by microwaveengineers and circuit designers. These engineersare being asked to design solid state circuitsthat will operate at higher and higher frequencies.The development of microwave transistors andAgilent technologies’ network analysis instrumentationsystems that permit complete network characterizationin the microwave frequency rangehave greatly assisted these engineers in their work.The Agilent Microwave Division’s lab staff hasdeveloped a high frequency circuit design seminarto assist their counterparts in R&D labs throughoutthe world. This seminar has been presentedin a number of locations in the United States andEurope.From the experience gained in presenting this originalseminar, we have developed a four-part videotape, S-Parameter Design Seminar. While the technologyof high frequency circuit design is everchanging, the concepts upon which this technologyhas been built are relatively invariant.The content of the S-Parameter Design Seminar isas follows:
標(biāo)簽： S參數(shù)
上傳時間： 2013-12-19
上傳用戶：aa54
This book is about the digital logic design of microprocessors. It is intended to provide both an understanding of the basic principles of digital logic design, and how these fundamental principles are applied in the building of complex microprocessor circuits using current technologies.
上傳時間： 2013-10-14
上傳用戶：leyesome
It would not be an exaggeration to say that semiconductor devices have transformed humanlife. From computers to communications to internet and video games these devices and the technologies they have enabled have expanded human experience in a way that is unique in history. Semiconductor devices have exploited materials, physics and imaginative applications to spawn new lifestyles. Of course for the device engineer, in spite of the advances, the challenges of reaching higher frequency, lower power consumption, higher power generation etc.
標(biāo)簽： 半導(dǎo)體器件 物理
上傳時間： 2013-10-28
上傳用戶：songnanhua
ELECTRONICS WORKBENCH EDA（以下簡稱EWB）軟件是交互圖像技術(shù)有限公司（INTERACTIVE IMAGE technologies Ltd）在八十年代末推出的EDA軟件，其EWB5.0于96年推出，占用硬盤空間很小，只有16M，是個模擬電路和數(shù)字電路混合仿真的EDA軟件，它的仿真功能十分強(qiáng)大，可以幾乎100％地仿真出真實(shí)電路的結(jié)果，而且它在桌面上提供了各種各樣的電子工具，如萬用表、示波器、信號發(fā)生器、邏輯分析儀等等，它的器件庫中則包含了許多大公司的晶體管元器件、集成電路和數(shù)字門電路，器件庫中沒有的元器件，還可以由外部模塊導(dǎo)入，在眾多的電路仿真軟件中，EWB是最容易學(xué)會的，它的工作界面非常直觀，原理圖和各種工具都在同一個窗口內(nèi)，未接觸過它的人稍加學(xué)習(xí)就可以很熟練地使用該軟件，對于電子設(shè)計工作者來說，它是個極好的EDA工具，許多電路你無需動用烙鐵就可得知它的結(jié)果，而且若想更換元器件或改變元器件參數(shù)，只需點(diǎn)點(diǎn)鼠標(biāo)即可，它也可以作為電學(xué)知識的輔助教學(xué)軟件使用，利用它可以直接從屏幕上看到各種電路的輸出波形。EWB的兼容性也較好，其文件格式可以導(dǎo)出成能被ORCAD或PROTEL讀取的格式，它是筆者最喜歡的EDA軟件之一,
標(biāo)簽： Electronic Workbench 5.0 5.2
上傳時間： 2013-10-21
上傳用戶：wangyi39
ELECTRONICS WORKBENCH EDA（以下簡稱EWB）軟件是交互圖像技術(shù)有限公司（INTERACTIVE IMAGE technologies Ltd）在八十年代末推出的EDA軟件，其EWB5.0于96年推出，占用硬盤空間很小，只有16M，是個模擬電路和數(shù)字電路混合仿真的EDA軟件，它的仿真功能十分強(qiáng)大，可以幾乎100％地仿真出真實(shí)電路的結(jié)果，而且它在桌面上提供了各種各樣的電子工具，如萬用表、示波器、信號發(fā)生器、邏輯分析儀等等，它的器件庫中則包含了許多大公司的晶體管元器件、集成電路和數(shù)字門電路，器件庫中沒有的元器件，還可以由外部模塊導(dǎo)入，在眾多的電路仿真軟件中，EWB是最容易學(xué)會的，它的工作界面非常直觀，原理圖和各種工具都在同一個窗口內(nèi)，未接觸過它的人稍加學(xué)習(xí)就可以很熟練地使用該軟件，對于電子設(shè)計工作者來說，它是個極好的EDA工具，許多電路你無需動用烙鐵就可得知它的結(jié)果，而且若想更換元器件或改變元器件參數(shù)，只需點(diǎn)點(diǎn)鼠標(biāo)即可，它也可以作為電學(xué)知識的輔助教學(xué)軟件使用，利用它可以直接從屏幕上看到各種電路的輸出波形。EWB的兼容性也較好，其文件格式可以導(dǎo)出成能被ORCAD或PROTEL讀取的格式，它是筆者最喜歡的EDA軟件之一,
標(biāo)簽： Electronic Workbench 5.0 5.2
上傳時間： 2013-10-10
上傳用戶：xanxuan
中文版詳情瀏覽：http://www.elecfans.com/emb/fpga/20130715324029.html Xilinx UltraScale:The Next-Generation Architecture for Your Next-Generation Architecture The Xilinx® UltraScale™ architecture delivers unprecedented levels of integration and capability with ASIC-class system- level performance for the most demanding applications. The UltraScale architecture is the industr y's f irst application of leading-edge ASIC architectural enhancements in an All Programmable architecture that scales from 20 nm planar through 16 nm FinFET technologies and beyond, in addition to scaling from monolithic through 3D ICs. Through analytical co-optimization with the X ilinx V ivado® Design Suite, the UltraScale architecture provides massive routing capacity while intelligently resolving typical bottlenecks in ways never before possible. This design synergy achieves greater than 90% utilization with no performance degradation. Some of the UltraScale architecture breakthroughs include: • Strategic placement (virtually anywhere on the die) of ASIC-like system clocks, reducing clock skew by up to 50% • Latency-producing pipelining is virtually unnecessary in systems with massively parallel bus architecture, increasing system speed and capability • Potential timing-closure problems and interconnect bottlenecks are eliminated, even in systems requiring 90% or more resource utilization • 3D IC integration makes it possible to build larger devices one process generation ahead of the current industr y standard • Greatly increased system performance, including multi-gigabit serial transceivers, I/O, and memor y bandwidth is available within even smaller system power budgets • Greatly enhanced DSP and packet handling The Xilinx UltraScale architecture opens up whole new dimensions for designers of ultra-high-capacity solutions.
標(biāo)簽： UltraScale Xilinx 架構(gòu)
上傳時間： 2013-11-21
上傳用戶：wxqman
Introduction to Xilinx Packaging Electronic packages are interconnectable housings for semiconductor devices. The major functions of the electronic packages are to provide electrical interconnections between the IC and the board and to efficiently remove heat generated by the device. Feature sizes are constantly shrinking, resulting in increased number of transistors being packed into the device. Today's submicron technology is also enabling large-scale functional integration and system-on-a-chip solutions. In order to keep pace with these new advancements in silicon technologies, semiconductor packages have also evolved to provide improved device functionality and performance. Feature size at the device level is driving package feature sizes down to the design rules of the early transistors. To meet these demands, electronic packages must be flexible to address high pin counts, reduced pitch and form factor requirements. At the same time,packages must be reliable and cost effective.
上傳時間： 2013-11-21
上傳用戶：不懂夜的黑
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