串口通訊大師源代碼，相互學(xué)習(xí)嘛，蠻不錯的rs232調(diào)試程序-Serial communication master source code and learn from each Other do
標簽： serial_COM
上傳時間： 2013-07-06
上傳用戶：zhangjt
·目錄1. Radio signals on the move 12. Antenna basics 193. Wire, connection, grounds, and all that 494. Marconi and Other unbalanced antennas 695. Doublets, dipoles, and Other Hertzian antennas 876. Limit
上傳時間： 2013-06-14
上傳用戶：lingduhanya
讀取STM32芯片內(nèi)部唯一的標識，用于加密等區(qū)別其他芯片的操作，有完整注釋，測試通過-STM32 chip to read a unique identifier for the encryption and Other differences Other chip operation, with complete notes, test
上傳時間： 2013-05-24
上傳用戶：793212294
Abstract: Most magnetic read head data sheets do not fully specify the frequency-dependent components andare often vague when specifying Other key parameters. In some cases, the specifications of two very similarheads from two different manufacturers might be quite different in terms of parameters specified and omitted.The limitations in the data sheets make designing an optimum card reading system unnecessarily difficult andtime consuming. This document outlines a strategy to overcome the above shortcomings and offers guidelinesto overcome the noise issues.
標簽： MCR 噪聲環(huán)境 磁卡讀寫器
上傳時間： 2013-11-13
上傳用戶：dysyase
Abstract: A laser module designer can use a fixed resistor, mechanical pot, digital pot, or a digital-to-analogconverter (DAC) to control the laser driver's modulation and bias currents. The advantages of a programmablemethod (POT or DAC) are that the manufacturing process can be automated and digital control can be applied(e.g., to compensate for temperature). Using POTs can be a more simple approach than a DAC. There can be aslight cost advantage to using a POT, but this is usually not significant relative to Other pieces of the design.Using a DAC can offer advantages, including improved linearity (translating to ease of software implementationand ability to hit the required accuracy), increased board density, a wider range of resolutions, a betteroptimization range, ease of use with a negative voltage laser driver, and unit-to-unit consistency
標簽： POT DAC 應(yīng)用筆記 校準
上傳時間： 2013-11-13
上傳用戶：ca05991270
Designers of signal receiver systems often need to performcascaded chain analysis of system performancefrom the antenna all the way to the ADC. Noise is a criticalparameter in the chain analysis because it limits theoverall sensitivity of the receiver. An application’s noiserequirement has a signifi cant infl uence on the systemtopology, since the choice of topology strives to optimizethe overall signal-to-noise ratio, dynamic range andseveral Other parameters. One problem in noise calculationsis translating between the various units used by thecomponents in the chain: namely the RF, IF/baseband,and digital (ADC) sections of the circuit.
標簽： 數(shù)字接收器 信號鏈 噪聲分析
上傳時間： 2014-12-05
上傳用戶：cylnpy
This publication represents the largest LTC commitmentto an application note to date. No Other application noteabsorbed as much effort, took so long or cost so much.This level of activity is justified by our belief that high speedmonolithic amplifiers greatly interest users.
標簽： 高速放大器
上傳時間： 2014-01-07
上傳用戶：wfl_yy
Low power operation of electronic apparatus has becomeincreasingly desirable. Medical, remote data acquisition,power monitoring and Other applications are good candidatesfor battery driven, low power operation. Micropoweranalog circuits for transducer-based signal conditioningpresent a special class of problems. Although micropowerICs are available, the interconnection of these devices toform a functioning micropower circuit requires care. (SeeBox Sections, “Some Guidelines for Micropower Designand an Example” and “Parasitic Effects of Test Equipmenton Micropower Circuits.”) In particular, trade-offs betweensignal levels and power dissipation become painful whenperformance in the 10-bit to 12-bit area is desirable.
標簽： 信號調(diào)理 微電路
上傳時間： 2013-10-22
上傳用戶：rocketrevenge
Application considerations and circuits for the LT1001 and LT1002 single and dual precision amplifiers are illustrated in a number of circuits, including strain gauge signal conditioners, linearized platinum RTD circuits, an ultra precision dead zone circuit for motor servos and Other examples.
上傳時間： 2013-10-18
上傳用戶：dreamboy36
Sensors for pressure, load, temperature, acceleration andmany Other physical quantities often take the form of aWheatstone bridge. These sensors can be extremely linearand stable over time and temperature. However, mostthings in nature are only linear if you don’t bend them toomuch. In the case of a load cell, Hooke’s law states that thestrain in a material is proportional to the applied stress—as long as the stress is nowhere near the material’s yieldpoint (the “point of no return” where the material ispermanently deformed).
上傳時間： 2013-11-13
上傳用戶：墻角有棵樹
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