Abstract: This circuit drives as many as four white LEDs in parallel from a 3.3V source, and adjusts the total LED current from 1mA to 106mA, in 64 steps of 1dB each. The circuit of Figure 1 is designed for portable-power...

摘要：與典型的“本地”時鐘方案相比，集成的多輸出時鐘發(fā)生器有許多優(yōu)勢。本文探討了集中時鐘發(fā)生器(如MAX9489和MAX9471)的優(yōu)點，如：降低系統(tǒng)成本、良好的信號完整性、抑制干...

摘要：降低電磁干擾(EMI)是電子系統(tǒng)設計人員需要考慮的一個重要因素，擴頻時鐘(CLK)為降低EMI提供了一個有效途徑。本文給出了擴頻CLK的定義和估算EMI抑制性能的簡單公式。所提供...

摘要：數(shù)字電子系統(tǒng)使我們的生活豐富多彩，但數(shù)字時鐘信號也扮演著“反面角色”，即傳導噪聲源(通過電纜)或電磁輻射干擾(EMI)。由于潛在的噪聲問題，電子產品需要經(jīng)過相關標...

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

摘要：在ISM 300MHz至450MHz波段的短波通訊中，低成本的ASK和/或FSK發(fā)送器和收發(fā)器是其核心器件。這些短程通信器件(SRD)的典型應用是無線遙控門禁系統(tǒng)(RKE)、胎壓檢測(TPM)、遙控和安全...

信號帶寬與信道帶寬 信號帶寬是信號頻譜的寬度，也就是信號的最高頻率分量與最低頻率分量之差，譬如，一個由數(shù)個正弦波疊加成的方波信號，其最低頻率分量是其基頻...

摘要：D類放大器的高效特性，使其成為便攜式和大功率應用的理想選擇。傳統(tǒng)的D類放大器需要一個外部低通濾波器，以從脈寬調制信號(PWM)輸出波形中提取音頻信號。然而，許多現(xiàn)...

Abstract: Many automotive mechanical functions have been replaced or amended by electronic circuits in recent years. One consequence has been a rapid increase in the number of microcontrollers per car, producing a similar increase in the t...

摘要：汽車視頻應用中，降低視頻干擾的途徑是用數(shù)字信號替代模擬信號。最有效的視頻傳輸方案是采用低電壓差分信號(LVDS)接口，因為它具有較低的信號幅度(0.35V)和差分架構，可...

摘要：LVDS解串器的偏移容限用來表示其抖動容限。本應用筆記描述了限制偏移容限的條件，并給出了測量4通道解串器偏移容限的步驟。 介紹TLVDS解串器的偏移...

摘要：本應用筆記是快速入門。它解釋了怎樣安裝并配置IAR Embedded Workbench?。此外，它提供簡要的說明來編譯、鏈接、調試MAXQ7665微控制器評估套件中的幾個實例工程。問題排查部...

摘要：為了獲得成功的硬件設計，在選擇串行器/解串器(SerDes)元件之前最好針對具體的應用進行評估。本應用筆記提供的設計指南有助于快速配置MAX9257/MAX9258評估板的I²C模式，逐...

Abstract: Most vehicle electronic systems require overvoltage, reverse-battery, and transient protection. The use of active protectors for these purposes offers substantial advantages in power dissipation, optimization of the operating vol...

摘要：Maxim開發(fā)了一系列串行器和解串器，廣泛用于視頻顯示和數(shù)字圖像系統(tǒng)中的高速、串行數(shù)據(jù)互聯(lián)。目前，設計人員急需找到一種測試由串行器和解串器(SerDes)芯片組搭建的串行...

Automotive...

Abstract: This reference design shows how to use a MAX15005 automotive power-supply controller as a boost circuit to maintain a constant voltage during an automotive cold-crank condition. IntroductionWhen an au...

Abstract: In automotive applications, offering a wide dimming ratio for backlights is important because the display panel must be viewable in both direct sunlight and in complete darkness. The latest high-brightness (HB) LEDs offer a backl...

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...

Abstract: This article describes a vacuum fluorescent display (VFD) and some ideal applications for the technology. The reference design then shows how to use a MAX15005 power-supply controller in a flyback topology to obtain multiple outp...