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APPLICATION-layer

  • 如何选择正确的CMOS模拟开关

    Abstract: With the large number of analog switches on the market today, there are many performance criteria for a product designer to consider. This application note reviews the basic construction of

    标签: CMOS 如何选择 模拟开关

    上传时间: 2013-11-09

    上传用户:xiaohanhaowei

  • 模拟IC性能的权衡 模拟到数字化设计的挑战

    Abstract: Many digital devices incorporate analog circuits. For instance, microprocessors, applicationspecificintegrated circuits (ASICs), and field-programmable gate arrays (FPGAs) may have internalvoltage references, analog-to-digital converters (ADCs) or digital-to-analog converters (DACs). However,there are challenges when you integrate more analog onto a digital design. As with all things in life, inelectronics we must always trade one parameter for another, with the application dictating the propertrade-off of analog function. In this application note, we examine how the demand for economy of spaceand cost pushes analog circuits onto digital substrates, and what design challenges emerge.  

    标签: 模拟IC 性能 模拟 数字化设计

    上传时间: 2013-11-17

    上传用户:菁菁聆听

  • D类数字输入放大器的简化系统设计

    Abstract: This application note describes a new generation of digital-input Class D audio amplifiers that achieve high PSRRperformance, comparable to traditional analog Class D amplifiers. More importantly, these digital-input Class D amplifiersprovide additional benefits of reduced power, complexity, noise, and system cost.

    标签: 数字输入放大器 系统设计

    上传时间: 2013-12-20

    上传用户:JIUSHICHEN

  • 24位ADC在心电图中的应用笔记

    Abstract: This application note describes the essential workings of an electrocardiogram (ECG). It discussesfactors that disrupt the ECG signals and make reliable, highly-accurate electrical characterization difficult. Theindustry-standard solution for ECG electrical characterization, which uses an analog front-end and ADCcombination, is explained. The article then introduces the MAX11040 simultaneous-sampling, sigma-deltaADC as a compelling, highly integrated solution that eliminates the need for the AFE, and saves both spaceand cost for the application.

    标签: ADC 24位 心电图 中的应用

    上传时间: 2013-12-23

    上传用户:sssl

  • 如何设计升压转换器MAX17597峰值电流模式控制器

    Abstract: This application note describes how to design boost converters using the MAX17597 peakcurrent-mode controller. Boost converters can be operated in discontinuous conduction mode (DCM) orcontinuous conduction mode (CCM). This operating mode can affect the component choices, stress levelin power devices, and controller design. Formulas for calculating component values and ratingsare alsopresented.

    标签: 17597 MAX 如何设计 升压转换器

    上传时间: 2013-11-16

    上传用户:zcs023047

  • 音频数模转换器DAC抖动的灵敏度分析

    Abstract: This application note describes how sampling clock jitter (time interval error or "TIE jitter") affectsthe performance of delta-sigma digital-to-analog converters (DACs). New insights explain the importanceof separately specifying low-frequency (< 2x passband frequency) and high-frequency or wideband (> 2xpassband frequency) jitter tolerance in these devices. The article also provides an application example ofa simple highly jittered cycle-skipped sampling clock and describes a method for generating a properbroadband jittered clock. The document then goes on to compare Maxim's audio DAC jitter tolerance tocompetitor audio DACs. Maxim's exceptionally high jitter tolerance allows very simple and low-cost sampleclock implementations.

    标签: DAC 音频 数模转换器 抖动

    上传时间: 2013-10-25

    上传用户:banyou

  • 寄存器和环路滤波器的设计

    The MAX2870 ultra-wideband phase-locked loop (PLL) and voltagecontrol oscillator (VCO) can operate in both integer-N and fractional-Nmodes, similar to the Analog Devices ADF4350 wideband synthesizer.This application note compares the MAX2870 and ADF4350 registers andloop filter design in detail. Users who already familiar with ADF4350 canuse this application note as a quick design reference.

    标签: 寄存器 环路滤波器

    上传时间: 2014-12-23

    上传用户:变形金刚

  • 高集成数字RF调制器解决方案

    Abstract: A digital RF modulator, an integrated solution that satisfies stringent DOCSIS RF-performancerequirements, takes advantage of modern technologies like high-performance wideband digital-to-analogconversion and CMOS technology scaling. This application note describes the concept and advantages ofa digital quadrature amplitude modulation (QAM) modulator that uses the direct-RF architecture to enablea cable access platform (CCAP) system.

    标签: 集成 数字RF 调制器 方案

    上传时间: 2013-10-20

    上传用户:drink!

  • 什么时候校准是重要的

    Abstract: Perfection is relative and application specific. The perfect race car is not the car we use to commute to work. We need products for everyday use that are high quality, affordable, and solidly reliable. There will be times when we must use components that are not perfect, and this is when calibration becomes important. Calibration techniques reduce tolerances in imperfect manufacturing equipment while maintaining affordability.

    标签: 校准

    上传时间: 2013-10-09

    上传用户:哈哈hah

  • 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