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通用RF器件的鄰道泄漏比(ACLR)來源
摘要：任何通用的RF器件,不論是混頻器、放大器、隔離器或其它器件，其鄰道泄漏比(ACLR)都受器件三階互調(diào)失真(IM3)的影響。可推導(dǎo)出器件的IM3與三階輸出交調(diào)截點(OIP3)之間的關(guān)系。...
2009-04-29 標(biāo)簽：RF 6000
發(fā)射應(yīng)用中多個高速、復(fù)用DAC的同步
摘要：該篇應(yīng)用筆記給出了多個具有多路輸入或集成內(nèi)插濾波器的高速復(fù)用數(shù)模轉(zhuǎn)換器(DAC)的同步方法。這樣的DAC用于I/Q上變頻器或數(shù)字波束成形發(fā)射器中。這些DAC可提供數(shù)據(jù)時鐘輸...
2009-04-29 標(biāo)簽：dac 959
UHF ISM波段發(fā)射器的輻射功率和場強測試
摘要：工作在工業(yè)、科學(xué)及醫(yī)療(ISM)波段，頻率范圍為260MHz至470MHz的近距離無線通信已廣泛用于遙控?zé)o鑰匙門禁系統(tǒng)(RKE)、家庭安防和遙控裝置。無線發(fā)射器的一個關(guān)鍵參數(shù)是通過天...
2009-04-29 標(biāo)簽：發(fā)射器 2614
如何提高M(jìn)AX4007的工作速度
摘要：MAX4007是一款高精度、高邊、高壓電流監(jiān)測器，設(shè)計用于監(jiān)測光纖系統(tǒng)光電二極管的電流。該應(yīng)用筆記描述了一種在GPON突發(fā)模式工作中提高M(jìn)AX4007響應(yīng)時間的簡易方法。 ...
2009-04-29 標(biāo)簽：MAX4007 844
DS1870的查找表結(jié)構(gòu)
摘要：本應(yīng)用筆記說明了DS1870 LDMOS RF功率放大器偏置控制器從輸入到輸出的控制通路，并討論了內(nèi)部校準(zhǔn)過程。 概述DS1870用于偏置RF功率放大器，本應(yīng)用筆記舉...
2009-04-28 標(biāo)簽：DS1870 716
Industrial 0V to +10V Digital
Abstract: AC and DC motors in modern industrial systems are often controlled via programmable logic controllers (PLCs) where an industrial mechanical potentiometer controls the motor speed. The wiper of these potentiometers can become worn...
2009-04-28 標(biāo)簽：Digital 1263
介紹DS1847用于工業(yè)控制-Introduction of
Abstract: This application note introduces the DS1847 and DS1848, dual digital temperature-controlled variable resistors, to the industrial controls market. By temperature compensating the resistors, the resistors can either remain at a sp...
2009-04-28 標(biāo)簽：DS1847 1169
使用多個DS1267數(shù)字電位器在一個8051微處理器生成3線
Abstract: The DS1267 is a dual digital potentiometer with a serial "shift register" type interface. The shift register has an input pin where data is shifted in as well as an output pin which shifts data out of the last bit of the shift re...
2009-04-28 標(biāo)簽：微處理器 1518
Manually Operated Digital Pote
Abstract: Operate a digital potentiometer without the use of a microcontroller. Manually increment up/down with a simple push-button circuit. Perfect for cost sensitive applications where manual controls are required to set a particular le...
2009-04-28 標(biāo)簽：Digital 1776
Interfacing a DS1868 3-Wire De
Abstract: The DS1868 uses a dual digital potentiometer with a 3-wire (shift register) interface. This application note describes the logic and firmware required to interface the DS1868, as well as any other Dallas Semiconductor 3-wire devi...
2009-04-28 標(biāo)簽：DS1868 918
Using a PC with a DS3900 to Co
Abstract: This application note describes how to use the DS3900 PC serial port to 3-wire interface to communicate with the three digital pots, the DS1267, DS1867, and DS1868, which use this shift register interface for programming. The DS3...
2009-04-28 標(biāo)簽：Communicat 1044
Using Spare NV Digital Pots as
Abstract: Some digital systems have control bits that are set to HI or LO depending on the configuration of the system. A common example in a PC is a configuration jumper or dipswitch that sets which disc drive is the master or slave on an...
2009-04-28 標(biāo)簽：Digital 1248
運用LabView控制DS3900串口通信模塊
摘要：本篇應(yīng)用筆記討論了DS3900串口通信模塊和LabView的使用問題，LabView是適用于嵌入式應(yīng)用的圖形化界面開發(fā)平臺。本文可作為面向DS3900的LabView界面用戶指南。 ...
測量MAX999比較器的輸出抖動
摘要：在某些應(yīng)用中，采用MAX999等高速比較器將輸入正弦信號轉(zhuǎn)換成方波，產(chǎn)生時鐘輸出，對于這些應(yīng)用，了解所生成時鐘的抖動非常重要。本應(yīng)用筆記回顧了抖動的基本理論，介...
2009-04-28 標(biāo)簽：MAX999 828
Considerations for the DS1847/
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...
如何使用DS185xEVKIT評價DS1856-How to
Abstract: The DS186xEVKIT is an evaluation kit designed for the DS1854, DS1857, DS1858, DS1859, and DS1856. This application note describes how to use the DS186xEVKIT with the DS1856, a part that was introduced after the EV Kit was develop...
2009-04-28 標(biāo)簽：DS185XEVKI 1187
Using the DS1859 with External
Abstract: This application note addresses adding external EEPROM into SFF-8472 applications that require more than 128 Bytes of memory located at the I²C* device address A0h. IntroductionThe DS1859 is a du...
2009-04-28 標(biāo)簽：DS1859 1332
利用DS185XEVKIT軟件的文件欄進(jìn)行器件編程
摘要：利用DS185x評估板(DS185XEVKIT)及其相關(guān)軟件，可以通過I²C串行接口對DS185x系列器件進(jìn)行編程。DS185x器件具有內(nèi)部EEPROM，用于器件設(shè)置，配置為通用存儲器或校準(zhǔn)查找表。為簡...
2009-04-28 標(biāo)簽：DS185XEVKI 931
使用DS1863/DS1865的內(nèi)部校準(zhǔn)和右移位(可擴展動態(tài)
摘要：這篇應(yīng)用筆記討論了使用DS1863/D1865控制器/監(jiān)控器芯片的內(nèi)部校準(zhǔn)和右移位(可擴展動態(tài)范圍)改善系統(tǒng)性能的方式。該文描述了如何實現(xiàn)內(nèi)部校準(zhǔn)和右移位，并通過一個實例闡...
2009-04-28 標(biāo)簽：adc 1207
并排比較光纖監(jiān)測和控制集成電路-Side-by-Side C
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...
2009-04-28 標(biāo)簽：集成電路光纖監(jiān)測集成電路 1099
利用DS1864提高APD的RSSI校準(zhǔn)
摘要：本應(yīng)用筆記闡述對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強度指示(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...
如何與MAX3735或MAX3741緊湊型激光驅(qū)動器連接
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)動器。本應(yīng)用中所使用的SFP激光驅(qū)動器為MAX3736或MAX3741?？刂破骶哂信cSFF-8472兼容的數(shù)字診斷、激...
2009-04-28 標(biāo)簽：驅(qū)動器 970
利用DS1841對數(shù)電阻優(yōu)化雪崩光電二極管(APD)的偏置范
摘要：本文闡述了如何使用DS1841對數(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)過程更簡單，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...
2009-04-28 標(biāo)簽：二極管 1125
規(guī)劃10位伽瑪寄存器的DS3514-Programming
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...
2009-04-28 標(biāo)簽：寄存器 886
Calculate Ratiometric Outputs
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...
Writing Parallel-Port 2-Wire S
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...
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