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過濾器基本知識(shí)：抗鋸齒-Filter Basics: Ant
Abstract: In a sampled data system, frequency components greater than half the sampling rate "alias" (shift) into the frequency band of interest. Most of the time, aliasing in an undesirable side effect, so the "undersampled" higher freque...
2009-04-25 標(biāo)簽：抗鋸齒 3341
標(biāo)準(zhǔn)清晰度數(shù)字電視重構(gòu)濾波器可調(diào)群時(shí)延-SDTV Recon
Abstract: The MAX4450 operational amplifier configured in a 3-pole, low-pass Sallen-Key filter provides a Butterworth response with a bandwidth of -3dB at 5.25MHz. This circuit can be used for video anti-aliasing and reconstruction filteri...
2009-04-25 標(biāo)簽：濾波器 923
5MHz, 3-Pole, Low-Pass Filter
Abstract: The MAX4390 operational amplifier configured in a 3-pole, low-pass Sallen-Key filter that provides a Butterworth response with a bandwidth of -3dB at 5.25MHz. This circuit can be used for video anti-aliasing and reconstruction fi...
2009-04-25 標(biāo)簽：driver 1390
濾波器結(jié)構(gòu)-A Beginners Guide to Fil
Abstract: This article is an excellent introduction to analog filters. It covers the basic first and second order filter types as well as the advantages and disadvantages of passive and active filters. It derives and analyzes the basic biq...
2009-04-25 標(biāo)簽：濾波器 1159
模擬濾波器設(shè)計(jì)Demystified-Analog Filt
Abstract: This article shows how to design analog filters. It starts by covering the fundamentals of filters, goes on to introduce the basic types like Butterworth, Chebyshev, and Bessel, and then guides the reader through the design proce...
2009-04-25 標(biāo)簽：濾波器 1239
利用數(shù)字電位器實(shí)現(xiàn)數(shù)控低通濾波器
摘要：數(shù)字電位器是一種應(yīng)用普遍的器件，本文介紹如何使用數(shù)字電位器構(gòu)建一個(gè)可調(diào)帶寬的低通濾波器。 ...
低成本、30MHz、三通道HDTV重建濾波器
摘要：本應(yīng)用筆記介紹如何利用MAX4382 3通道放大器構(gòu)建雙電源供電的低成本、三通道、三極點(diǎn)、低通Sallen-Key濾波器。該電路提供巴特沃斯濾波器頻響特性，具有30MHz帶寬，非常適合HD...
2009-04-25 標(biāo)簽：濾波器 1166
數(shù)字控制移相-Digitally Control Phase
Abstract: The application note describes using a digital potentiometer, passive components such as resistors and capacitors, and an operational amplifier to build a digitally controlled phase-shift circuit. Although written specifically fo...
2009-04-25 標(biāo)簽：Digitally 1400
均衡技術(shù)拼合數(shù)模轉(zhuǎn)換器頻率響應(yīng)-Equalizing Tec
均衡技術(shù)拼合數(shù)模轉(zhuǎn)換...
2009-04-25 標(biāo)簽：轉(zhuǎn)換器頻率 1484
Multiply Your Sampling Rate wi
Abstract: Interleaving multiple analog-to-digital converters (ADCs) is usually performed with the intent to increase a converters effective sample rate, especially if there are no or only few off-the-shelf ADCs available that fulfill the d...
2009-04-25 標(biāo)簽：Converters 1060
模數(shù)轉(zhuǎn)換器1Gsps-ADC Captures 1Gsps
模數(shù)轉(zhuǎn)換器1Gsps...
2009-04-25 標(biāo)簽：轉(zhuǎn)換器 1381
Pipeline ADCs Come of Age
Abstract: In the mid 1970s, a new data converter architecture was introduced to the analog and mixed-signal community, called pipeline ADCs. The following article takes the knowledge of advantages and disadvantages of the pipeline architec...
2009-04-25 標(biāo)簽：adc 1283
設(shè)計(jì)一個(gè)低抖動(dòng)時(shí)鐘的高速數(shù)據(jù)轉(zhuǎn)換器-Design a Low
Abstract: High-speed applications using ultra-fast data converters in their design often require an extremely clean clock signal to make sure an external clock source does not contribute undesired noise to the overal dynamic performance of...
2009-04-25 標(biāo)簽：轉(zhuǎn)換器 908
選擇最佳測(cè)試音和測(cè)試設(shè)備的成功高速ADC正弦波測(cè)試-Sele
Abstract: An earlier application note, "Coherent Sampling vs. Window Sampling," covered the basics of coherent sampling. It showed differences between tests performed with coherent sampling and windowed sampling conditions. The following t...
2009-04-25 標(biāo)簽：adc 923
數(shù)字接收機(jī)中高性能ADC和射頻器件的動(dòng)態(tài)性能要求
摘要：基站系統(tǒng)(BTS)需要在符合各種不同標(biāo)準(zhǔn)的同時(shí)滿足信號(hào)鏈路的指標(biāo)要求。本文介紹了一些信號(hào)鏈路器件，例如：高動(dòng)態(tài)性能ADC，可變?cè)鲆娣糯笃?，混頻器和本振，詳細(xì)介紹了它...
Coherent Sampling Calculator (
Abstract: This calculator provides a quick and easy way to select sinusoidal input test tones for the test of analog-to-digital (ADC) converters. Based on the theory of coherent sampling, the calculator allows a user to chose input and sam...
2009-04-25 標(biāo)簽：Sampling 1062
Step-by-step instructions for
Abstract: This application note demonstrates how to quickly verify the dynamic performance of any ADC without requiring expensive data-processing software. Although Microsoft Excel limits the number of data points to 4k, this application n...
2009-04-25 標(biāo)簽：FFT 1193
通過多個(gè)數(shù)據(jù)文件組合優(yōu)化INL/DNL分析
摘要：本文探討如何利用MATLAB強(qiáng)大的指令功能改進(jìn)高速數(shù)據(jù)采集系統(tǒng)中存儲(chǔ)器受限的代碼密度，提高程序代碼的循環(huán)量，以滿足高速模/數(shù)轉(zhuǎn)換器(ADC)的INL、DNL測(cè)試需求。 ...
邏輯分析儀內(nèi)存不足？“拼”出解決之道
摘要：MATLAB®是一個(gè)強(qiáng)有力的工具，可用來快速分析從模數(shù)轉(zhuǎn)換器(ADC)輸出所捕獲的數(shù)據(jù)。本應(yīng)用筆記演示了如何使用MATLAB來突破邏輯分析儀存儲(chǔ)深度的局限。描述并比較了三種數(shù)...
2009-04-25 標(biāo)簽： 722
混疊頻率計(jì)算器
摘要：本應(yīng)用筆記提供一種快速、容易使用的工具，用來確定鏡像信號(hào)的真實(shí)位置和重疊頻率的位置，以及典型頻譜中的諧波頻率。所得數(shù)據(jù)用于分析模/數(shù)轉(zhuǎn)換器(ADC)和數(shù)/模轉(zhuǎn)換器(...
2009-04-25 標(biāo)簽：頻率 2065
利用低功耗微控制器開發(fā)FFT應(yīng)用
摘要：今天的低功耗微控制器(μC)也開始集成原先只存在于大型微處理器、ASIC和DSP中的外設(shè)功能，使我們有可能以很低的功耗實(shí)現(xiàn)復(fù)雜的算術(shù)運(yùn)算。本文討論一種快速傅立葉變換(FFT)...
超低抖動(dòng)時(shí)鐘合成器的設(shè)計(jì)挑戰(zhàn)
摘要：該應(yīng)用筆記提出了超低抖動(dòng)時(shí)鐘合成器的一種設(shè)計(jì)思路，其目標(biāo)是產(chǎn)生2GHz時(shí)鐘時(shí)，邊沿之間的抖動(dòng)< 100fs。分析和仿真結(jié)果表明，要達(dá)到這一抖動(dòng)指標(biāo)，設(shè)計(jì)難度遠(yuǎn)遠(yuǎn)高于預(yù)...
2009-04-25 標(biāo)簽：合成器 697
自動(dòng)化數(shù)據(jù)采集的ADC芯片應(yīng)用
Abstract: This article describes an automated data collection system for analog-to-digital converters (ADCs). It discusses the advantages of automating data collection as well as a detailed description of the hardware and software. It goes...
2009-04-25 標(biāo)簽：數(shù)據(jù)自動(dòng)化 1184
鎖相環(huán)應(yīng)用的MAX9382
Abstract: This application note discusses phase frequency detector characteristics that affect phase-locked loop (PLL) dead band and jitter performance. In PLLs that employ charge pump loop filter designs the provision of a minimum duratio...
2009-04-25 標(biāo)簽：鎖相環(huán) 1354
接收靈敏度的定義公式
接收靈敏度的定義公式 摘要：本應(yīng)用筆記論述了擴(kuò)頻系統(tǒng)靈敏度的定義以及計(jì)算數(shù)字通信接收機(jī)靈敏度的方法。本文提供了接收...
2009-04-25 標(biāo)簽：接收機(jī) 15846
規(guī)格與測(cè)量機(jī)振蕩器噪聲集成電路基站混頻器-Specifica
Abstract: Residual phase noise from local oscillators (LO) can be degraded by additive noise of on-chip local oscillator drivers/buffers in integrated circuit mixers. Reciprocal mixing of strong RF signals with the LO noise degrades the re...
2009-04-25 標(biāo)簽：混頻器 855
正確選擇輸入網(wǎng)絡(luò)，優(yōu)化高速ADC的動(dòng)態(tài)性能和增益平坦度
摘要：該應(yīng)用筆記論述了如何選擇適當(dāng)?shù)淖儔浩骱蜔o(wú)源元件，并在不犧牲高速ADC動(dòng)態(tài)性能的情況下獲得較寬的輸入頻響的增益平坦度。 對(duì)于較高IF的模/數(shù)轉(zhuǎn)換器(ADC)，...
2009-04-25 標(biāo)簽：adc 757
高性能通訊系統(tǒng)中的數(shù)字到模擬轉(zhuǎn)換器(DAC)
摘要：來自Maxim的兩種新型數(shù)/模轉(zhuǎn)換器(DAC)能夠?yàn)橥ㄐ藕蛢x表系統(tǒng)提供更高的動(dòng)態(tài)特性，MAX5886/MAX5887/MAX5888 12位至16位轉(zhuǎn)換器在保持高采樣速率和低功耗的同時(shí)，具有出色的動(dòng)態(tài)特性...
2009-04-25 標(biāo)簽：dac 900
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