最初，普通老式電話業(yè)務(wù) (POTS) 設(shè)計(jì)用于在客戶端和局端 (CO) 之間傳輸純語(yǔ)音數(shù)據(jù)。然而，例如非對(duì)稱數(shù)字用戶線路 (ADSL) 的寬帶調(diào)制解調(diào)器已經(jīng)不用將 POTS 與 CO 連...

Abstract: Theory of operation and description of the DS1077 dual-output all-silicon EconOscillator. A link to an interactive frequency calculator permits calculation of available frequencies online. ECONOSCILLATOR ARCHITE...

Abstract: The technical brief answers frequently asked questions (FAQs) regarding Dallas Semiconductor silicon timed circuits (STCs), also known as delay lines. This brief discusses both laser-trimmed (older) as well as EEPROM-trimmed (new...

投影系統(tǒng)中的電源設(shè)計(jì)優(yōu)化體現(xiàn)在高強(qiáng)度放電 (HID) 或 LED 要求、功率因數(shù)校正以及能效方面。 TI 開(kāi)發(fā)的數(shù)字光投影儀 (DLP) 顯示技術(shù)采用光半...

摘要：本文詳細(xì)說(shuō)明了 TI 推出的TPS65024x電源產(chǎn)品系列之間的不同之處，此系列電源產(chǎn)品是專(zhuān)門(mén)為 PDA、智能電話以及導(dǎo)航系統(tǒng)的應(yīng)用處理器而設(shè)計(jì)的。 在為智能電話開(kāi)發(fā)一款...

動(dòng)態(tài)電源路徑管理簡(jiǎn)化了太陽(yáng)能板對(duì)電池的充電 最初，TI 的線性充電穩(wěn)壓器bqTINY-III 系列只是設(shè)計(jì)用于通過(guò)一個(gè) AC 適配器或 USB 端口為單體鋰離...

UC3855A/B高性能功率因數(shù)預(yù)調(diào)節(jié)器 電源轉(zhuǎn)換器正朝著越來(lái)越高的功率密度的方向發(fā)展。通常，獲得這種高功率密度的方法是提高開(kāi)關(guān)頻率，可以縮小濾波...

在光線較弱的條件下，膠卷或數(shù)碼攝影的高端設(shè)備需要氙氣閃光燈管來(lái)進(jìn)行拍攝。氙氣閃光燈管可提供瞬間的高強(qiáng)度光源，在對(duì)較遠(yuǎn)處、高速移動(dòng)或弱光條件下的物...

Abstract: This application brief describes the techniques used to build and calibrate/compensate new-generation all-silicon delay lines. Both EconOscillators and delay lines use a compensated voltage-controlled delay line (VCDL) scheme to ...

Abstract: Dallas Semiconductor manufactures several EconOscillators™ (DS1065, DS1077/DS1077L, DS1085/DS1085L, and DS1086). Since many of the features of these devices cannot easily be categorized into fields in the on-line parametric...

Applications for clock data recovery (CDR) abound in telecommunications, optical transceivers, data and storage area networks, and wireless products. The benefits of CDR technology are increasingly important as designs require much greater...

Abstract: Cascading two step-up switching converters boosts a low voltage (as low as 0.9V) to 50V. Handheld instruments often require a voltage far above the internal analog supply rail. The circuit of Figure 1 can derive...

摘要：數(shù)字電子系統(tǒng)使我們的生活豐富多彩，但數(shù)字時(shí)鐘信號(hào)也扮演著“反面角色”，即傳導(dǎo)噪聲源(通過(guò)電纜)或電磁輻射干擾(EMI)。由于潛在的噪聲問(wèn)題，電子產(chǎn)品需要經(jīng)過(guò)相關(guān)標(biāo)...

Abstract: The PCI Express x16 Graphics 150W-ATX Specification establishes detailed power-supply management requirements for PC-graphics add-in cards. Designing a discrete solution to satisfy these requirements can add considerable cost and...

Abstract: The DS1086L is a Spread-Spectrum EconOscillator™ that generates a spread-spectrum, square-wave output between 130kHz and 66.6MHz. This application note describes an easy-to-use frequency calculator for setting the desired o...

摘要：MAX9450/MAX9451/MAX9452是集成了VCXO，具有相同PLL內(nèi)核和三種不同輸出(LVPECL， HSTL，LVDS)的高精度時(shí)鐘發(fā)生器。MAX945x時(shí)鐘發(fā)生器具有四個(gè)主要的特點(diǎn)：集成VCXO，工作頻率范圍寬，PLL...

MAX9247的測(cè)試...

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...

Abstract: This application note describes how to use a margining oscillator for applications that require spread-spectrum clock generation (SSCG). The DS4M133 margining oscillator serves as the example of the technique. ...

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)...