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Abstract-the

  • 如何提高模幂运算速度应用笔记

    Abstract: This application note describes how to improve the speed of modular exponentiation by more than 50% whenusing MAXQ® microcontrollers that have a modular arithmetic accelerator (MAA).  

    标签: 如何提高 模幂运算 应用笔记 速度

    上传时间: 2013-11-17

    上传用户:s363994250

  • 消除电源旁路滤波噪声

    Abstract: If sensitive analog systems are run from one supply without the sufficient bypassing to eliminate noise,

    标签: 电源旁路 滤波噪声

    上传时间: 2013-11-23

    上传用户:qiulin1010

  • 如何选择合适的Logger按钮

    Abstract: For many first-time users, finding the right logger that meets their needs can be a challenging task. In simple

    标签: Logger 如何选择 按钮

    上传时间: 2014-01-19

    上传用户:缥缈

  • 校准触摸屏系统研究

    Abstract: Mechanical misalignment and scaling factors lead to a mismatch between the values coming from a touchscreen panel (as translated by a touch screen controller) and the display (typically an LCD) on which the touch screenpanel is mounted. This tutorial discusses how to calibrate the touch screen panel to match the display.

    标签: 校准 触摸屏 系统研究

    上传时间: 2013-10-21

    上传用户:euroford

  • 了解模数转换器的噪声、ENOB

    Abstract: Specifications such as noise, effective number of bits (ENOB), effective resolution, and noise-free resolution inlarge part define how accurate an ADC really is. Consequently, understanding the performance metrics related to noise isone of the most difficult aspects of transitioning from a SAR to a delta-sigma ADC. With the current demand for higherresolution, designers must develop a better understanding of ADC noise, ENOB, effective resolution, and signal-to-noiseratio (SNR). This application note helps that understanding.

    标签: ENOB 模数转换器

    上传时间: 2013-10-16

    上传用户:x18010875091

  • 高精度I2C实时时钟的设计

    Abstract: This application note presents an overview of the operational characteristics of accurate I²C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forpower management, I²C communication circuit configurations, and I²C characteristics relative to device power-up sequences andinitializations. Additional discussions on decoupling are provided to support developing strategies for mitigating power-supply pushingof device frequency.

    标签: I2C 高精度 实时时钟

    上传时间: 2013-11-23

    上传用户:WMC_geophy

  • 信号链和PLC是如何影响我们的生活

    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.

    标签: PLC 信号链

    上传时间: 2013-11-10

    上传用户:liaocs77

  • 应用笔记-校准激光驱动器POT和DAC

    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

    标签: POT DAC 应用笔记 校准

    上传时间: 2013-11-13

    上传用户:ca05991270

  • 校准复用器简化系统校准设计

    Abstract: IC switches and multiplexers are proliferating, thanks to near-continual progress in lowering the supply voltage,incorporating fault-protected inputs, clamping the output voltage, and reducing the switch resistances. The latest of these advancesis the inclusion of precision resistors to allow two-point calibration of gain and offset in precision data-acquisition systems.

    标签: 校准复用器 校准

    上传时间: 2013-11-12

    上传用户:acwme

  • 数控DCDC转换器在便携产品中的应用

    Abstract: This tutorial discusses methods for digitally adjusting the output voltage of a DC-DC converter. The digital adjustmentmethods are with a digital-to-analog converter (DAC), a trim pot (digital potentiometer), and PWM output of a microprocessor.Each method is assessed and several DACs and digital potentiometers presented.

    标签: DCDC 数控 便携产品 中的应用

    上传时间: 2013-11-20

    上传用户:zycidjl