用带序列信号发生器的12位ADC简化多路信号输入

描述了LTC1851芯片的新特性，其可编程序列信号发生器可用来自动地控制多路信号输入并完成采样一保持功能。     

The empirical behavior of sampling methods for stochastic programming

We investigate the quality of solutions obtained from sample-average approximations to two-stage stochastic linear programs with recourse. We use a recently developed software tool executing on a computational grid to solve many large instances of these problems, allowing us to obtain high-quality solutions and to verify optimality and near-optimality of the computed solutions in various ways. Research supported by the Mathematical, Information, and Computational Sciences Division subprogram of the Office of Advanced Scientific Computing Research, U.S. Department of Energy, under Contract W-31-109-Eng-38, and by the National Science Foundation under Grant 9726385. Research supported by the Mathematical, Information, and Computational Sciences Division subprogram of the Office of Advanced Scientific Computing Research, U.S. Department of Energy, under Contract W-31-109-Eng-38, and by the National Science Foundation under Grant DMS-0073770. Research supported by the Mathematical, Information, and Computational Sciences Division subprogram of the Office of Advanced Scientific Computing Research, U.S. Department of Energy, under Contract W-31-109-Eng-38, and by the National Science Foundation under Grants 9726385 and 0082065.     

图形接口的ESD保护问题

视频图形接口 　　在计算机市场上有两种广泛应用的重要图形接口,即VGA端口和DVI端口.VGA端口由模拟和数字信号组成,用于母板和某些笔记本电脑.……     

使用TPS62200作为OMAP1510的动态电压缩放器

毫无疑问的,延长便携式电子产品之电池使用寿命将有助于该产品的销售。对微处理器而言,降低内部时脉频率或降低核心电压均有助于降低其功率消耗。动态电压缩放(Dynamicvoltage scaling, DVS)技术常用来降低核心电压以降低功率消耗。本文将说明如何使用TPS62200降压型转换器来实现动态电压缩放技术并作为OMAP1510处理器之电源。下式说明了使用TI-DSP核心之微处理器的功率消耗计算方式:PC ～ (VC)2 × f其中PC代表核心功率消耗,VC为核心电压,f则为核心时脉频率。OMAP1510处理器具有两种操作模式:AWAKE(唤醒)模式以及低功耗的DE…     

工业标准Mezzanine模块

典型的CompactPCI系统和VME系统的I/O扩展是通过使用各种规格的板卡来实现,如选用CompactPCI或VME类型的板卡来实现这一简单功能显得大材小用且得不偿失,简单的I/O功能需要一种更低成本和更小规格尺寸板卡的标准。这种对Mezzanine标准的需求被业界所认可,2001年夏,IEEE颁布了P1386和P1386.1标准。这些标准又进一步被PICMG和VITA提升来满足电信和高吞吐量的需求。尽管这些中介承载模块是针对CompactPCI和VME设计,但是它们可被用在任何规格板卡上,前提是提供标准的机械、电气、信号要求。PMC标准是两个IEEE标准的集合,IE…