Abstract: Understand the value of a µP supervisor to ensure proper system operation during power-up, power-down, and brownout situations (undervoltage monitoring). In addition, provides information about overvoltage and windowed moni...

Abstract: Maxim offers µP supervisors/voltage detectors with different reset output configurations. The note describes the differences between open-drain, push-pull, and bi-directional outputs. Maxim offers supervis...

Abstract: Watchdog timers are used to monitor and minimize code execution errors. Internal watchdog timers are subject to code execution problems, making external watchdog circuits invaluable in preventing system lockup.This docume...

Abstract: This application note provides a quick guide to selecting Dallas Semiconductor Microprocessor Supervisor ICs. Many customers searching for a microprocessor supervisor have requested a simpler alternative to the Maxim online param...

摘要：MAX16046–MAX16049系統(tǒng)管理器可以在焊接到應(yīng)用電路板后進(jìn)行編程。這意味著只需儲存未編程器件，而最新版本的配置信息可以在生產(chǎn)測試過程中寫入器件。通過幾項簡單的測試...

調(diào)頻無線話筒制作方法 每一個電子愛好者都有電子制作的經(jīng)歷，從開始時的不斷失敗到逐漸得心應(yīng)手，其中的滋味是圈外人所無法領(lǐng)會的。其實有很多朋友很想進(jìn)入電...

摘要：本文描述并分析了三種可對MAX3740激光器驅(qū)動器進(jìn)行精確激光功率控制的電路。介紹了每種電路的原理圖、仿真結(jié)果，及其各自的優(yōu)缺點。 MAX3740 VCSEL激光驅(qū)動器...

Abstract: This application brief describes the two topologies used to bias optical laser drivers (open loop and closed loop) and demonstrates examples using the DS1847 digital potentiometer and the MAX3273 laser driver. A laser module desi...

IntroductionSome standards, such as the SFF-8472, require that fiber optic signals be monitored. Two means of calibration are available to the designer. Precalibration, referred to by the SFF-8472 Standard as internal calibration,...

Abstract: The DS1854, DS1857, and DS1858 monitor VCC, ambient temperature, and external analog inputs. This application note explains how to interpret the values stored in the Main Device SRAM and translate them into temperature and voltag...

Abstract: The DS1852 is a digital potentiometer with five analog inputs that can be used in conjunction with the potentiometers to gather feedback information about an analog system, as well as provide analog control functions. Its intende...

Abstract: The DS1847 and DS1848 have an on-chip direct-to-digital temperature sensor. The temperature is stored in address locations E2h and E3h. This application note explains how to convert the digital temperature data into a decimal deg...

Abstract: The purpose of this application note is to show how to apply a temperature offset to the factory calibrated temperature sensor reading of the DS1859. IntroductionThe purpose of this application note i...

摘要：DS1865突發(fā)模式PON控制器內(nèi)置監(jiān)測電路，可用于配置報警、預(yù)警、查找表以及應(yīng)用筆記4052 (DS1863存儲器速查指南)中的其他詳細(xì)功能。為實現(xiàn)這些編程功能，需要一個大容量的映...

OverviewThe DS1858 dual temperature-controlled nonvolatile (NV) variable resistors with three monitors consists of two 50kΩ, 256-position linear variable resistors, three analog monitor inputs (MON1, MON2, MON3), and a direct-to-...

Abstract: Abstract: Both the DS1847 and DS1848 feature two 256-position digital resistors and lookup tables (LUT) to automatically adjust the resistance over a temperature range of -40°C to 95°C. The DS1848 also features 128 bytes of use...

Abstract: The DS1847/DS1848 dual temperature-controlled nonvolatile (NV) variable resistors consist of two 256-position linear variable resistors and a direct-to-digital temperature sensor. The device is capable of setting and temperature-...

Abstract: The temperature characteristics of digital potentiometers differ from those of traditional mechanical potentiometers. The effects of temperature on the absolute resistance of the potentiometer must be taken into consideration whe...

Abstract: This application note covers the use of look-up tables in the control of laser bias and modulation. The tables are a part of a feedforward control based on temperature which varies the value of the controlling signal as temperatu...

Abstract: A complete and very compact thermal control solution for DWDM (Dense Wavelength Division Multiplexing) laser modules can be made using a MAX8520/21 and a single op amp. Because DWDM uses multiple lasers on a single fiber, careful...