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电源技术 基于开关电容技术的锁定放大器设计

锁定放大是微弱信号检测的重要手段。基于相关检测理论,利用开关电容的开关实现锁定放大器中乘法器的功能,提出开关电容和积分器相结合以实现相关检测的方法,并设计出一种锁定放大器。该锁定放大器将微弱信号转化为与之相关的方波,通过后续电路得到正比于被测信号的直流电平,为后续采集处理提供方便。测量数据表明锁定放 ...
https://www.eeworm.com/dl/505/24425.html
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电源技术 电源滤波器POWER LINE FILTERS

应用 APPLICATIONS·电视机、录像机、音频设备、显示器、复印机、打印装置、游戏机及计算机等。·用于开关电源线性滤波器。·削除 TV、VTR、VCR及监听器泄漏杂音。·用于OA 设备、通信设备和其它器件。·TV set, recorder, sound-frequency equipment, show-scope, photocopy-scope, typewrite equipment, recreation-scope ...
https://www.eeworm.com/dl/505/24759.html
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单片机编程 无线通信网络基本概念及设计

This white paper raises some fundamental issues the design engineer should address before deciding upon a communication approach for a wireless network. As no universal wireless network solution exists, it should be custom tailored to suit the application demands. Defining your application communica ...
https://www.eeworm.com/dl/502/28845.html
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单片机编程 AD9859芯片资料

FEATURES400 MSPS internal clock speedIntegrated 10-bit DAC32-bit tuning wordPhase noise ≤ –120 dBc/Hz @ 1 kHz offset (DAC output)Excellent dynamic performance>75 dB SFDR @ 160 MHz (±100 kHz offset) AOUTSerial I/O control1.8 V power supplySoftware and hardware controlled power-down48-lead TQFP/EP ...
https://www.eeworm.com/dl/502/29887.html
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单片机编程 基于XGATE进行Manchester译码的方法

Using the XGATE for Manchester DecodingTable of Contents 1 Introduction                         1.1 XGATE Module in S12X           ...
https://www.eeworm.com/dl/502/30855.html
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单片机编程 DUAL DIGITAL ISOLATORS

The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are orientedin the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic inputand output buffer separated by TI’s silicon-dioxide (SiO2) isolation barrier ...
https://www.eeworm.com/dl/502/31077.html
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单片机编程 Input Signal Rise and Fall Tim

All inputs of the C16x family have Schmitt-Trigger input characteristics. These Schmitt-Triggers are intended to always provide proper internal low and high levels, even if anundefined voltage level (between TTL-VIL and TTL-VIH) is externally applied to the pin.The hysteresis of these inputs, howeve ...
https://www.eeworm.com/dl/502/31376.html
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单片机编程 介绍C16x系列微控制器的输入信号升降时序图及特性

All inputs of the C16x family have Schmitt-Trigger input characteristics. These Schmitt-Triggers are intended to always provide proper internal low and high levels, even if anundefined voltage level (between TTL-VIL and TTL-VIH) is externally applied to the pin.The hysteresis of these inputs, howeve ...
https://www.eeworm.com/dl/502/31379.html
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DSP编程 卡尔曼滤波器matlab程序

load initial_track  s; % y:initial data,s:data with noiseT=0.1; % yp denotes the sample value of position% yv denotes the sample value of velocity% Y=[yp(n);yv(n)];% error deviation caused by the random acceleration % known dataY=zeros(2,200);Y0=[0;1];Y(:,1)=Y0;A=[1 T    0 1];&nb ...
https://www.eeworm.com/dl/516/32036.html
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可编程逻辑 高速电路传输线效应分析与处理

随着系统设计复杂性和集成度的大规模提高,电子系统设计师们正在从事100MHZ以上的电路设计,总线的工作频率也已经达到或者超过50MHZ,有一大部分甚至超过100MHZ。目前约80% 的设计的时钟频率超过50MHz,将近50% 以上的设计主频超过120MHz,有20%甚至超过500M。当系统工作在50MHz时,将产生传输线效应和信号的完整性问题;而 ...
https://www.eeworm.com/dl/kbcluoji/40328.html
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