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.
标签： Amplifier Microwave Design Power
上传时间： 2013-12-22
上传用户：vodssv
The information in this specification is subject to change without notice.Use of this specification for product design requires an executed license agreement from the CompactFlashAssociation.The CompactFlash Association shall not be liable for technical or editorial errors or omissions contained herein; norfor incidental or consequential damages resulting from the furnishing, performance, or use of this material.All parts of the CompactFlash Specification are protected by copyright law and all rights are reserved. Thisdocumentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to anyelectronic medium or machine readable form without prior consent, in writing, from the CompactFlash Association.The CFA logo is a trademark of the CompactFlash Association.Product names mentioned herein are for identification purposes only and may be trademarks and/or registeredtrademarks of their respective companies.© 1998-99, CompactFlash Association. All rights reserved.
标签： 技术资料
上传时间： 2013-10-08
上传用户：stewart·
ExpressPCB 是一款免费的PCB设计软件，简单实使。可以画双层板。 Our Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional. Our board manufacturing service makes top quality two and four layer PCBs. Use our MiniBoard service and pay only $51 for three boards (plus $8 shipping).
标签： ExpressPCB PCB 设计软件
上传时间： 2013-11-15
上传用户：lchjng
ExpressPCB 是一款免费的PCB设计软件，简单实使。可以画双层板。 Our Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional. Our board manufacturing service makes top quality two and four layer PCBs. Use our MiniBoard service and pay only $51 for three boards (plus $8 shipping).
标签： ExpressPCB PCB 设计软件
上传时间： 2013-10-09
上传用户：1047385479
本文简单探讨了verilog HDL设计中的可综合性问题，适合HDL初学者阅读 用组合逻辑实现的电路和用时序逻辑实现的 电路要分配到不同的进程中。 不要使用枚举类型的属性。 Integer应加范围限制。 通常的可综合代码应该是同步设计。 避免门级描述，除非在关键路径中。
上传时间： 2013-11-18
上传用户：swaylong
One of the strengths of Synplify is the Finite State Machine compiler. This is a powerfulfeature that not only has the ability to automatically detect state machines in the sourcecode, and implement them with either sequential, gray, or one-hot encoding. But alsoperform a reachability analysis to determine all the states that could possibly bereached, and optimize away all states and transition logic that can not be reached.Thus, producing a highly optimal final implementation of the state machine.
标签： Synplicity Machine Verilog Design
上传时间： 2013-10-20
上传用户：苍山观海
UART 4 UART参考设计，Xilinx提供VHDL代码 uart_vhdl This zip file contains the following folders: \vhdl_source -- Source VHDL files: uart.vhd - top level file txmit.vhd - transmit portion of uart rcvr.vhd - - receive portion of uart \vhdl_testfixture -- VHDL Testbench files. This files only include the testbench behavior, they do not instantiate the DUT. This can easily be done in a top-level VHDL file or a schematic. This folder contains the following files: txmit_tb.vhd -- Test bench for txmit.vhd. rcvr_tf.vhd -- Test bench for rcvr.vhd.
上传时间： 2013-11-02
上传用户：18862121743
各种功能的计数器实例（VHDL源代码）:ENTITY counters IS PORT ( d : IN INTEGER RANGE 0 TO 255; clk : IN BIT; clear : IN BIT; ld : IN BIT; enable : IN BIT; up_down : IN BIT; qa : OUT INTEGER RANGE 0 TO 255; qb : OUT INTEGER RANGE 0 TO 255; qc : OUT INTEGER RANGE 0 TO 255; qd : OUT INTEGER RANGE 0 TO 255; qe : OUT INTEGER RANGE 0 TO 255; qf : OUT INTEGER RANGE 0 TO 255; qg : OUT INTEGER RANGE 0 TO 255; qh : OUT INTEGER RANGE 0 TO 255; qi : OUT INTEGER RANGE 0 TO 255;
上传时间： 2013-10-09
上传用户：松毓336
Frequently, voltage reference stability and noise defi nemeasurement limits in instrumentation systems. In particular,reference noise often sets stable resolution limits.Reference voltages have decreased with the continuingdrop in system power supply voltages, making referencenoise increasingly important. The compressed signalprocessing range mandates a commensurate reductionin reference noise to maintain resolution. Noise ultimatelytranslates into quantization uncertainty in A to D converters,introducing jitter in applications such as scales, inertialnavigation systems, infrared thermography, DVMs andmedical imaging apparatus. A new low voltage reference,the LTC6655, has only 0.3ppm (775nV) noise at 2.5VOUT.Figure 1 lists salient specifi cations in tabular form. Accuracyand temperature coeffi cient are characteristic ofhigh grade, low voltage references. 0.1Hz to 10Hz noise,particularly noteworthy, is unequalled by any low voltageelectronic reference.
上传时间： 2013-10-30
上传用户：wxhwjf
随着总线和接口技术的发展，在工业场合如何更加可靠、快速、便捷地进行数据传输成为该领域通信的研究重点之一。而USB技术以其高速、可靠、通用性强等一系列特点在过去的十多年时间里发展迅猛，而USB OTG技术的诞生，使得两USB设备在没有PC参与的情况下进行数据传输成为可能。本文通过搭建以16位微处理器MSP430F149为核心控制芯片、ISPl362为USB接口芯片的硬件平台，分别实现了USB部分主机和从机功能，使之能进行USB数据的存储与交换。本文完成以下工作：首先，认真研究USB协议，深入理解USB通信的基本概念和传输方式等内容。仔细分析USB Mass Storage类协议，并讨论了采用BULK-ONLY传输实现Mass Storage类协议的方法，并对SCSI指令集等进行了深入的剖析。其次，根据要求，设计出由控制、接口、数据存储、过流保护与供电切换电路等硬件模块组成的系统，在ALTIUM 2004软件上完成原理图的设计和PCB图的布局、布线，并完成硬件调试工作。再次，在已构建的硬件平台上，针对ISPl362 USB接口芯片的主／从机功能，分别设计了USB主机和从机的固件程序。利用IAR Workbench、BusHound等软件进行固件程序的调试，最终USB主机可对u盘进行检测、识别与配置；USB设备实现了USB设备的基本功能，能够被Windows XP操作系统识别，与PC机之间实现数据的批量传输。最后，用DriverWorks软件包的Driver Wizard生成驱动程序框架，并利用Windows DDK和vc++等软件进行驱动程序的编译，最终生成基于Windows操作系统的WDM型USB设备驱动程序。通过对USB通信协议的研究，本人成功地构建了以MsP430F149和ISPl362为核心的硬件试验平台，并在此平台上进行USB主机、从机通信试验。经测试表明，PC机能检测、识别、读写USB设备，其读取与写入速度分别为560KB／s和312Ⅺ玳。而主机能识别、配置接入的U盘。关键词：USB主机、USB从机、MSI'430F149、ISPl362、BuR-Only传输
上传时间： 2013-10-11
上传用户：浅言微笑
