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通信設(shè)計(jì)應(yīng)用
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建設(shè)精密脈寬調(diào)制器使用延遲線-Building Precis
Abstract: A delay line with some external logic can be combined to implement a one-shot function. This article outlines how to perform this configuration and make the required calculations to develop the pulse width needed for a certain ap...
2009-04-22 標(biāo)簽：延遲線 1204
技術(shù)簡(jiǎn)介37 ：取代被動(dòng)混合延遲線與全硅延遲線-Tech B
Abstract: Dallas Semiconductor’s all-silicon delay lines provide a low-cost alternative to the traditional delay line constructed of discrete components. This note briefly describes the differences in technology between the two types of ...
2009-04-22 標(biāo)簽：延遲線 776
DS1077 5V的EconOscillator建筑與在線互
Abstract: The DS1077 is a programmable (via 2-wire) dual-output EconOscillator™ with thousands of possible combinations of frequency outputs available. This application note describes the architecture and capabilities of the DS1077 t...
2009-04-22 標(biāo)簽：DS10 667
用可編程振蕩器產(chǎn)生和控制系統(tǒng)時(shí)鐘-Using Program
Abstract: In a processor-controlled system, power consumption is directly proportional to the clock speed of the processor. If the computational load on the processor is small, most of this power is wasted. Modulating the processor speed t...
DS1077/DS1085 EconOscillators的
Abstract: Proper decoupling is required for the DS1077 and DS1085 EconOscillators to optimize the frequency stability of the devices. The article discusses power-supply decoupling, AC output load characteristics, and divider configurations...
考慮設(shè)計(jì)全硅延遲線
Abstract: This application brief discusses the architectural and structural differences between solid-state and hybrid delay lines. In many cases, solid-state delay lines provide a functional, if not pin-for-pin, replacement for hybrid del...
2009-04-22 標(biāo)簽：延遲線 1079
技術(shù)簡(jiǎn)介40 ：了解可編程延遲線：概述DS1020，DS10
Abstract: This is an earlier application note discussing the characteristics and capabilities of the DS1020, DS1021, and DS1045 programmable delay lines from Dallas Semiconductor. It discusses the architecture and functionality of the two ...
延遲線比較-Delay Lines Comparison
Abstract: Maxim manufactures several delay lines. This application note compares each programmable delay line and non-programmable delay line to help customers choose the appropriate device for their application. Since many of the features...
2009-04-22 標(biāo)簽：延遲線 1193
時(shí)鐘抖動(dòng)(CLK)和相位噪聲之間的轉(zhuǎn)換
摘要：這是一篇關(guān)于時(shí)鐘(CLK)信號(hào)質(zhì)量的應(yīng)用筆記，介紹如何測(cè)量抖動(dòng)和相位噪聲，包括周期抖動(dòng)、逐周期抖動(dòng)和累加抖動(dòng)。本文還描述了周期抖動(dòng)和相位噪聲譜之間的關(guān)系，并介紹...
2009-04-22 標(biāo)簽：CLK 4541
DS1094L頻率計(jì)算器-Frequency Calcula
Abstract: This application note presents an easy-to-use frequency calculator, for determining the register values to be programmed into the DS1094L Multiphase Spread-Spectrum EconOscillator. The DS1094L is capable of generating 4 multiphas...
2009-04-22 標(biāo)簽： 1222
利用MAX9489/MAX9471多輸出時(shí)鐘發(fā)生器構(gòu)建集成時(shí)
摘要：與典型的“本地”時(shí)鐘方案相比，集成的多輸出時(shí)鐘發(fā)生器有許多優(yōu)勢(shì)。本文探討了集中時(shí)鐘發(fā)生器(如MAX9489和MAX9471)的優(yōu)點(diǎn)，如：降低系統(tǒng)成本、良好的信號(hào)完整性、抑制干...
2009-04-22 標(biāo)簽： 502
擴(kuò)頻時(shí)鐘發(fā)生器
摘要：降低電磁干擾(EMI)是電子系統(tǒng)設(shè)計(jì)人員需要考慮的一個(gè)重要因素，擴(kuò)頻時(shí)鐘(CLK)為降低EMI提供了一個(gè)有效途徑。本文給出了擴(kuò)頻CLK的定義和估算EMI抑制性能的簡(jiǎn)單公式。所提供...
2009-04-22 標(biāo)簽： 425
DS325X、DS316X、DS317X和DS318X中時(shí)鐘
摘要：本應(yīng)用筆記說(shuō)明怎樣配置DS325X、DS316X、DS317X和DS318X器件中的時(shí)鐘速率適配器(CLAD)來(lái)產(chǎn)生多種時(shí)鐘源。在具體應(yīng)用中，這些時(shí)鐘源可用作LIU參考時(shí)鐘或發(fā)送時(shí)鐘。 ...
2009-04-22 標(biāo)簽：適配器 986
DS1090頻率計(jì)算器
摘要：本應(yīng)用筆記提供一個(gè)簡(jiǎn)單易用的頻率計(jì)算器，用于確定適當(dāng)?shù)男吞?hào)、偏置電阻以及DS1090低頻、電阻可編程、擴(kuò)頻EconOscillator™的輸入設(shè)置。DS1090可提供125kHz至8MHz的擴(kuò)頻、方...
2009-04-22 標(biāo)簽： 550
4路(3路數(shù)據(jù)+1路時(shí)鐘) LVDS串行器/解串器的延遲裕量
摘要：對(duì)于MAX9209/MAX9222等多通道輸入的LVDS串行/解串器，測(cè)量接收器的延遲裕量以判斷它們的抖動(dòng)容限是一種行之有效的方法。雖然一些文獻(xiàn)給出了接收端的延遲定義，但還沒(méi)有公認(rèn)...
2009-04-22 標(biāo)簽：lvds 2288
RS-485的數(shù)據(jù)介面可以讓孤立的或全雙工的操作-RS-48
Abstract: A circuit is described that provides fully isolated RS-485 full-duplex data communication with only two integrated circuits (ICs). An internal transformer-coupled isolated supply and internal optocouplers in the data path provide...
從孤立外鉤電話線中提請(qǐng)150毫瓦功率-Draw 150mW
The power supply of Figure 1 is useful in portable systems that connect to subscriber (household) telephone lines, such as modems and telephone test sets. For systems that require 150mW or less, this circuit eliminates the need for batteri...
使用MAX3250±50V隔離RS-232接口收發(fā)器-Usi
Abstract: This paper describes how resistor-isolated transceivers are able to handle ±50V ground-offset signals, and indicates how and why the offset voltage is limited by the design. The method of transferring power across the isolation ...
Robust Contact Monitor Simplif
Abstract: This application note demonstrates how the MAX13362 automotive switch monitor performs during ECU-level testing. The article describes the tests performed and the results obtained. IntroductionThe MAX...
選擇無(wú)線協(xié)議：802.15.4、ZigBee以及專(zhuān)有網(wǎng)絡(luò)之間
許多設(shè)計(jì)人員都聽(tīng)說(shuō)過(guò) ZigBee 與 IEEE 802.15.4 標(biāo)準(zhǔn)，但不清楚到底應(yīng)該選擇Zigbee，還是 802.15.4，抑或是開(kāi)發(fā)自己的專(zhuān)有網(wǎng)絡(luò)協(xié)議。本文將以專(zhuān)有協(xié)議為例，介紹各種協(xié)...
Layout Considerations for Non-
Abstract: DC-DC converters are an excellent source of electric fields and magnetic fields. Their EMI spectrum begins at the switching frequency and often extends over 100MHz. To minimize capacitive couplings and magnetic couplings care mus...
2009-04-21 標(biāo)簽：Converters 1201
設(shè)計(jì)指引高性能多通道同步采樣模數(shù)轉(zhuǎn)換器在數(shù)據(jù)采集系統(tǒng)中的應(yīng)用
Abstract: This application note will help the designer of a high-performance multichannel, simultaneous-sampling data-acquisition system (DAS). It explains how to select the proper components and place them on the PCB to achieve optimum pe...
2009-04-21 標(biāo)簽：轉(zhuǎn)換器多通道 1085
DS28DG02用戶指南
摘要：DS28DG02是帶有PIO、實(shí)時(shí)時(shí)鐘(RTC)、復(fù)位、電池監(jiān)控器和看門(mén)狗的2kb SPI™ EEPROM，它組合了便攜式設(shè)備和嵌入式應(yīng)用中需要的多種功能。本應(yīng)用筆記對(duì)產(chǎn)品數(shù)據(jù)資料進(jìn)行補(bǔ)充說(shuō)...
2009-04-21 標(biāo)簽：DS28DG02 867
DS32X35帶有鐵電隨機(jī)存取存儲(chǔ)器的高精度實(shí)時(shí)時(shí)鐘(RTC
摘要：該應(yīng)用筆記介紹了DS32X35系列產(chǎn)品。這些器件為帶有鐵電隨機(jī)存取存儲(chǔ)器(RTC + FRAM)的高精度實(shí)時(shí)時(shí)鐘，無(wú)需外接電池即可保持存儲(chǔ)器內(nèi)容。 概述隨著DS32X35...
2009-04-21 標(biāo)簽：DS32X35 824
DS1318與8051微控制器的接口
摘要：本應(yīng)用筆記演示了使用DS1318歷時(shí)計(jì)數(shù)器計(jì)算天數(shù)。軟件實(shí)例中包括基本的操作程序，并給出了應(yīng)用電路的原理圖。 DS1318引腳配置...
2009-04-21 標(biāo)簽：DS1318 545
高精度實(shí)時(shí)時(shí)鐘的供電考慮
摘要：DS3231/DS3232通過(guò)設(shè)置溫度更新周期，能夠在保持較高時(shí)鐘精度的同時(shí)大大降低器件的電流損耗。 概述隨著DS3231超高精度、I²C*兼容的集成RTC/TCXO/晶振的...
2009-04-21 標(biāo)簽：實(shí)時(shí)時(shí)鐘 1383
有關(guān)內(nèi)置晶體封裝的常見(jiàn)問(wèn)題
摘要：在選擇獨(dú)立實(shí)時(shí)時(shí)鐘(RTC)時(shí)，Maxim現(xiàn)在可以提供一種集成了石英晶體的封裝供您選擇。這種新的封裝將串行接口(I²C、3線或SPI™) RTC器件和一個(gè)匹配的32.768kHz石英晶體集成...
2009-04-21 標(biāo)簽：晶體 1175
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