this pdf introducing the gsm technology , types of modulation ang its network parts
標(biāo)簽： introducing modulation technology network
上傳時(shí)間： 2013-12-27
上傳用戶：fredguo
source and benchmark test for the registery parts of a RISC processor
標(biāo)簽： benchmark registery processor source
上傳時(shí)間： 2014-01-18
上傳用戶：bruce
it s a code for calculator the price of a machine which have a lot of parts.
標(biāo)簽： calculator machine price parts
上傳時(shí)間： 2014-01-20
上傳用戶：13188549192
A Solar sun tracker, diagram electronic and parts
標(biāo)簽： electronic diagram tracker Solar
上傳時(shí)間： 2013-12-21
上傳用戶：ccclll
A MEMS microphone IC is unique among Analog Devices, Inc., products in that its input is an acoustic pressure wave. For this reason, some specifications included in the data sheets for these parts may not be familiar, or familiar specifications may be applied in unfamiliar ways. This application note explains the specifica-tions and terms found in MEMS microphone data sheets so that the microphone can be appropriately designed into a system.
標(biāo)簽： MEMS 麥克風(fēng) 系統(tǒng)設(shè)計(jì) 效率
上傳時(shí)間： 2013-10-31
上傳用戶：masochism
Abstract: It is incredible how many programmable logic controls (PLCs) around us make our modern life possible and pleasant.Machines in our homes heat and cool our air and water, as well as preserve and cook our food. This tutorial explains the importanceof PLCs, and describes how to choose component parts using the parametric tools on the Maxim's website.A similar version of this article was published February 29, 2012 in John Day's Automotive Electronic News.
上傳時(shí)間： 2013-11-10
上傳用戶：liaocs77
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone LSB apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 LSB step. For example,a DAC with a 1.5 LSB output change for a 1 LSB digital codechange exhibits 1⁄2 LSB differential non-linearity. Differentialnon-linearity may be expressed in fractional bits or as a percentageof full scale. A differential non-linearity greater than1 LSB will lead to a non-monotonic transfer function in aDAC.Gain Error (Full Scale Error): The difference between theoutput voltage (or current) with full scale input code and theideal voltage (or current) that should exist with a full scale inputcode.Gain Temperature Coefficient (Full Scale TemperatureCoefficient): Change in gain error divided by change in temperature.Usually expressed in parts per million per degreeCelsius (ppm/°C).Integral Nonlinearity (Linearity Error): Worst case deviationfrom the line between the endpoints (zero and full scale).Can be expressed as a percentage of full scale or in fractionof an LSB.LSB (Lease-Significant Bit): In a binary coded system thisis the bit that carries the smallest value or weight. Its value isthe full scale voltage (or current) divided by 2n, where n is theresolution of the converter.Monotonicity: A monotonic function has a slope whose signdoes not change. A monotonic DAC has an output thatchanges in the same direction (or remains constant) for eachincrease in the input code. the converse is true for decreasing codes.
標(biāo)簽： Converters Defini DAC
上傳時(shí)間： 2013-10-30
上傳用戶：stvnash
第一單 PSPICE使用初步第二章 文本文件描述第三章 電路原理圖程序第四章 模擬計(jì)算程序PSPICE及圖形后第五章 信號(hào)源模型編輯STMED第六章 模型參數(shù)提取parts第七章 常見問(wèn)題處理第八章 PSPICE應(yīng)用。
上傳時(shí)間： 2013-12-23
上傳用戶：wendy15
We provide complete power solutions with a full lineup of power managementproducts. This brochure provides an overview of our high performance DC/DC switching regulatorcontrollers for applications including datacom, telecom, industrial, automotive, medical, avionicsand control systems. We make power design easier with our industry-leading field applicationengineering support; a broad selection of demonstration boards with schematics, layout filesand parts lists; SwitcherCAD® software for simulation, application notes and comprehensivetechnical documentation.
上傳時(shí)間： 2013-10-15
上傳用戶：lz4v4
While simplicity and high effi ciency (for cool running) areno longer optional features in isolated power supplies, itis traditionally diffi cult to achieve both. Achieving higheffi ciency often requires the use of advanced topologiesand home-brewed secondary synchronous rectifi cationschemes once reserved only for higher power applications.This only adds to the parts count and to the designcomplexity associated with the reference and optocouplercircuits typically used to maintain isolation. Fortunately, abreakthrough IC makes it possible to achieve both high efficiency and simplicity in a synchronous fl yback topology.The LT®3825 simplifi es and improves the performance oflow voltage, high current fl yback supplies by providingprecise synchronous rectifi er timing and eliminating theneed for optocoupler feedback while maintaining excellentregulation and superior loop response.
上傳時(shí)間： 2013-10-16
上傳用戶：wayne595
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1
