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电源技术 电源调整与虚拟地
Abstract: Rail splitting is creating an artificial virtual ground as a reference voltage. It is used to set the signalto match the op amp's "sweet spot." An op amp has the most linear- and distortion-free qualities at that sweetspot. Typically, the sweet spot occurs near the center between the ...
电源技术 LTC6994参考设计及PCB布线规则
Demonstration circuit 1562A is an engineering toolto design and evaluate the LTC699X-X family ofTimerBlox circuits. The center section of the boardcontains a pre-configured TimerBlox function.DC1562A comes in twelve timing function variationsas outlined in Table 1.Surrounding the center board is a ...
单片机编程 基于P89V51RD2的功率因数测量仪设计
设计一种基于P89V51RD2的功率因数测量仪，采用光电隔离器和专用数码管驱动器。该测量仪是以增强型单片机P89V51RD2为核心，大大简化系统硬件设计。而软件部分采用模块化设计思想，采用中值滤波和小数补偿算法，实现功率因数的高精度测量。实验测试表明，该功率因数测量仪测量精度高，运行稳定可靠。
Abstract:
 A po ...
教程资料 WP328-FPGA的语音数据融合
 
The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially instal ...
通信网络 tcp ip协议详解 中文版PDF
很多不同的厂家生产各种型号的计算机，它们运行完全不同的操作系统，但TCP.IP协议族允许它们互相进行通信。这一点很让人感到吃惊，因为它的作用已远远超出了起初的设想。T C P / I P起源于6 0年代末美国政府资助的一个分组交换网络研究项目，到9 0年代已发展成为计算机之间最常应用的组网形式。它是一个真正的开放系统， ...
可编程逻辑 WP328-FPGA的语音数据融合
 
The SDI standards are the predominant standards for uncompressed digital videointerfaces in the broadcast studio and video production center. The first SDI standard,SD-SDI, allowed standard-definition digital video to be transported over the coaxial cableinfrastructure initially instal ...
测试测量 LT5528 WCDMA ACPR和AltCPR测量
 
ACPR (adjacent channel power ratio), AltCPR (alternatechannel power ratio), and noise are important performancemetrics for digital communication systems thatuse, for example, WCDMA (wideband code division multipleaccess) modulation. ACPR and AltCPR are bothmeasures of spectral regrowth. T ...
编译器/解释器 Many many developers all over the net respect NASM for what i s - a widespread (thus netwide), port
Many many developers all over the net respect NASM for what i s
- a widespread (thus netwide), portable (thus netwide!), very
flexible and mature assembler tool with support for many output
formats (thus netwide!!).
Now we have good news for you: NASM is licensed under LGPL.
This means its developm ...
软件设计/软件工程 本文档作为《MISC平台接口规范》的附件
本文档作为《MISC平台接口规范》的附件，定义了中国移动移动信息业务中心Mobile Information Service Center（以下简称为MISC）平台V1.6版本WAP业务SP的应用程序接口，目的是为SP开发可接入MISC平台的WAP业务提供指导规范。
本文档并不用于指导SP如何申请接入MISC及业务测试等相关流程，以及WAP的页面规范、WAP应用程序的可 ...
书籍源码 zemax源码： This DLL models a standard ZEMAX surface type, either plane, sphere, or conic The surfac
zemax源码：
This DLL models a standard ZEMAX surface type, either plane, sphere, or conic
The surface also demonstrates a user-defined apodization filter
The filter is defined as part of the real ray trace, case 5
The filter can be used at the stop to produce x-y Gaussian apodization similar to t ...