Abstract: This application note presents parts designed for fiber monitoring and optical control. Although the products have a broad range of capabilities, some of those features are most important for the optical control and monitoring ma...

摘要：本應(yīng)用筆記闡述對(duì)于采用雪崩光電二極管(APD)的光接收器，如何利用DS1864 SFP激光器與診斷提高接收信號(hào)強(qiáng)度指示(RSSI)的校準(zhǔn)。本文討論了APD和RSSI之間的關(guān)系，介紹了利用DS1864...

摘要：本文闡述了如何將DS1863、DS1865或DS1875 PON控制器/監(jiān)控電路連接到緊湊的激光驅(qū)動(dòng)器。本應(yīng)用中所使用的SFP激光驅(qū)動(dòng)器為MAX3736或MAX3741?？刂破骶哂信cSFF-8472兼容的數(shù)字診斷、激...

摘要：本文闡述了如何使用DS1841對(duì)數(shù)電位器調(diào)節(jié)APD偏置電路的輸出范圍。為了使調(diào)節(jié)過(guò)程更簡(jiǎn)單，本文還提供了電子數(shù)據(jù)表。 APD偏置電路DS1841可受溫度控制的...

Abstract: Manufacturers of portable equipment, workstations, small handheld computers, cell phones, and video games use flat panel displays to display text and images. Electro-mechanical potentiometers have been the typical mechanism used ...

Abstract: The DS1050 is a 5-bit pulse-width modulator (PWM) controlled by a 2-wire bus. This allows a single master device to control up to 8 slave (DS1050 and other 2-wire devices) on a single 2-wire bus. In this application note, an inte...

Abstract: A circuit consisting of an SMBus™ I/O expander, step-up converter, and digital potentiometer enables the SMBus to control the contrast of an LCD. Small, handheld, battery-powered devices often feature an L...

摘要：LCD (液晶顯示器)是電控發(fā)光管，LCD TV (液晶顯示電視)采用白光作為“背光”，通常使用冷陰極熒光燈(CCFL)為彩色熒光屏照明。其它技術(shù)，如：發(fā)光二極管(LED), 也作為一種考慮...

摘要：為了降低對(duì)直流逆變器瞬間電流的需求，DS3984/DS3988冷陰極熒光燈控制器采用順序啟動(dòng)突發(fā)亮度調(diào)節(jié)的方式，控制LCD顯示器的每個(gè)通道。 圖1給出了DS3984/DS3988冷陰...

摘要：DS3984和DS3988是多通道冷陰極熒光燈(CCFL)控制器。DS3984支持多達(dá)四通道，DS3988支持八通道。這些控制器使用推挽式驅(qū)動(dòng)架構(gòu)，可將DC電源電壓轉(zhuǎn)換成為驅(qū)動(dòng)CCFL所需的高壓AC波形。...

摘要：DS3881、DS3882、DS3984、DS3988、DS3991、DS3992和DS3994是冷陰極熒光燈(CCFL)背光液晶顯示器(LCD)控制器。為了取得滿意的視覺(jué)效果或延長(zhǎng)燈泡壽命，在大多數(shù)應(yīng)用中需要進(jìn)行亮度調(diào)節(jié)。...

摘要：DS3984、DS3988、DS3991、DS3992以及DS3994是冷陰極熒光燈管(CCFL)的控制器，用于液晶顯示LCD的背光。每個(gè)控制器通道可以驅(qū)動(dòng)兩個(gè)邏輯電平MOSFET以轉(zhuǎn)換直流電壓到CCFL驅(qū)動(dòng)所需要的高...

Abstract: The DS3514 programmable gamma and VCOM voltage generator features gamma buffers that provide 10 bits of resolution. These 10 bits are stored in two 8-bit registers. This application note explains how to calculate the register val...

Abstract: This application note discusses using digital potentiometers for gain control in traditional operational amplifier (op amp) circuits. Examples are given for typical op amp configurations (inverting, non-inverting) where the digit...

可編程增益放大器采用...

DS1802雙數(shù)字音...

Abstract: The DS1802 audio potentiometer contains two digitally controlled potentiometers and features a logarithmic taper that produces a 1dB change per increment. This application note describes using it in a push-button controlled audio...

Abstract: Digital potentiometers (pots) offer advantages in volume control applications over bulky mechanical pots, especially in handheld portable devices such as MP3 players, PDAs, cell phones, or stereo AM/FM radios. This document descr...

Abstract: The DS1802 is a dual audio taper-potentiometer with logarithmic resistive characteristics over the device range. Each potentiometer provides 65 wiper positions with a 1dB increment per step and device mute with at least 90dB of a...

Abstract: Provides instruction and source code for writting parallel port 2-wire software for use with the parallel port hardware described in application note AN3230. Also see: Application Note: Adding Windows NT/2000/XP...