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...

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...

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...

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...

摘要：MAX9217/MAX9218串行器和解串器芯片組通過一對(duì)兒雙絞線LVDS鏈路實(shí)現(xiàn)視頻數(shù)據(jù)傳輸，廣泛用于汽車和工業(yè)應(yīng)用領(lǐng)域。視頻信號(hào)的每一幀總是存在消隱周期，可以利用這些周期“承...

摘要：本應(yīng)用筆記說明怎樣配置DS325X、DS316X、DS317X和DS318X器件中的時(shí)鐘速率適配器(CLAD)來產(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。 ...

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...

在MAX9485中如...

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，但還沒有公認(rèn)...

使用EconOsci...

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...

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...

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 ...

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...

起振停振型位式傳感器電路...

電感式位移傳感器的測(cè)量電路...

采用磁阻元件的位移傳感器電路...

許多設(shè)計(jì)人員都聽說過 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，抑或是開發(fā)自己的專有網(wǎng)絡(luò)協(xié)議。本文將以專有協(xié)議為例，介紹各種協(xié)...

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...

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...