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通信設(shè)計應(yīng)用
電子發(fā)燒友網(wǎng)本頻道為通信技術(shù)專欄，提供詳細的通信設(shè)計最新技術(shù)與應(yīng)用；是您學(xué)習(xí)通信技術(shù)知識的好平臺。
High-Side Current-Sense Amplif
Abstract: This circuit modifies a standard 32V high-side current monitor to measure load current (to 30mA) while accommodating any level of high voltage, subject to limitations in the external components. (The components shown allow measur...
2009-04-24 標簽：Current-Se 1311
The MAX1407 Complete Data Acqu
Abstract: A design example for a portable data acquisition system is offered that greatly simplifies the circuit design task. A reduction from seven components down to three components is accomplished with a design that has lower system co...
2009-04-24 標簽：MAX1407 809
自動化數(shù)據(jù)采集的ADC-Automating ADC Dat
Abstract: This article describes an automated data collection system for analog-to-digital converters (ADCs). It discusses the advantages of automating data collection as well as a detailed description of the hardware and software. It goes...
2009-04-24 標簽：數(shù)據(jù)采集自動化 1091
采用Maxim驅(qū)動器-比較器-負載(DCL)器件及參數(shù)測量單
摘要：本應(yīng)用筆記介紹了Maxim新款PMU和DCL產(chǎn)品的功能并利用其特性滿足特定的輸出電流低于2mA或在2mA至50mA范圍的PMU應(yīng)用。 概述在傳統(tǒng)的半導(dǎo)體自動化測試中，DC...
2009-04-24 標簽：驅(qū)動器 687
Transimpedance Amplifier Buffe
Abstract: A general-purpose current-measurement system employs a current transformer, ac-coupled to a transimpedance amplifier. About transimpedance and transconductance: The words "transconductance" and "tr...
采用MAXQ2000實現(xiàn)與MAX1169的高速I²
摘要：本應(yīng)用筆記給出了MAXQ2000微控制器(MAXQ20核)與MAX1169 16位ADC接口的應(yīng)用電路，并且提供了所需的全部固件。固件例程采用Rowley CrossWorks IDE Version 1.0開發(fā)。 MAX1169...
2009-04-24 標簽：MAXQ2000 1212
計算誤差預(yù)算在精密數(shù)模轉(zhuǎn)換器應(yīng)用-Calculating t
Abstract: This application note analyses the parameters that affect the errors in precision digital-to-analog converter (DAC) applications. The analysis focuses on the factors introduced by both the data converter and the voltage reference...
2009-04-24 標簽：誤差 1050
在FPGA中實現(xiàn)源同步LVDS接收正確字對齊
在串行數(shù)據(jù)傳輸中，數(shù)據(jù)接收端需要一些特定的信息來恢復(fù)出正確的字邊界，以確定串行碼流中哪些比特屬于原始并行數(shù)據(jù)里的同一時鐘節(jié)拍里的數(shù)據(jù)，這...
2009-04-24 標簽：FPGA 4981
無線移動網(wǎng)絡(luò)在醫(yī)療衛(wèi)生行業(yè)的應(yīng)用
在香港舉行的HIMSS AsiaPac08醫(yī)療信息技術(shù)大會暨展覽上，《E-醫(yī)療》記者對Aruba Network公司全球醫(yī)療行業(yè)市場總監(jiān)Peter Mongroo先生進行了專訪。 在無線網(wǎng)絡(luò)方面擁...
2009-04-24 標簽：網(wǎng)絡(luò) 728
采用非易失性靜態(tài)存儲器-Using Nonvolatile
Abstract: Vast resources have been spent by the semiconductor industry to build high-speed nonvolatile random-access read/write memory. This effort was undertaken because NV SRAM offers advantages over other memory devices such as DRAM, SR...
2009-04-24 標簽：存儲器 1155
雙端口RAM-Dual Port RAM
Abstract: Asynchronous multiprocessor systems require a means to transmit data between two independently running processors. Dual port memory provides a common memory accessible to both processors that can be used to share and transmit dat...
2009-04-24 標簽：端口 7649
1線文件結(jié)構(gòu)-1-Wire File Structure
Abstract: This application note discusses the 1-Wire® File Structure (OWFS). The OWFS provides a directory structure for data residing in 1-Wire devices including iButtons. It allows named files to be randomly accessed as they are on o...
2009-04-24 標簽：文件結(jié)構(gòu) 947
計時使用非易失性內(nèi)存和微控制器-Using a Nonvol
Abstract: This application note describes how to use a Nonvolatile Timekeeping RAM with an 8051-type microcontroller. An example schematic is provided. Source code provides an example of how to read and write the real-time clock (RTC) regi...
2009-04-24 標簽：微控制器 565
使用備份DS4510/DS4520/DS4550選擇快閃記憶
Abstract: Many high-reliability systems maintain a backup copy of their flash memory should a new software download become unusable for any reason. This application note describes how the DS4510, DS4520, and DS4550 non-volatile I/O expande...
NVSRAM設(shè)備編程
Abstract: This application note lists third-party vendors who manufacture programmers for the Dallas Semiconductor NVSRAM modules. IntroductionCustomers often ask how to transfer data to and from our NVSRAM mod...
2009-04-24 標簽：編程 985
實現(xiàn)密鑰的物理安全
摘要：軍用設(shè)備，特別是便攜式軍用設(shè)備(例如：無線電臺)，密鑰的物理安全性至關(guān)重要。選擇使用特殊設(shè)計的元器件能夠滿足實際應(yīng)用的標準要求，并可提供額外的保護措施。這些...
2009-04-24 標簽：密鑰 1110
利用DS5250產(chǎn)生RSA密鑰
摘要：DS5250微控制器評估(EV)板是經(jīng)過驗證的用于評估這款高速微控制器的平臺，本應(yīng)用筆記介紹了如何設(shè)置評估板，并根據(jù)應(yīng)用的位長需要產(chǎn)生RSA密鑰的方法。采用Keil µVision2&re...
2009-04-23 標簽：DS5250 1341
Dual Voltage Tracking Circuit
Abstract: This note describes a dual tracking controller for a single I/O voltage and two core voltages. It describes how to apply the circuit to one or many core voltages. Principles covered include: the need for tracking, practical ...
2009-04-23 標簽：Microp 1314
影響調(diào)整DS1086L的抖動跨度和抖動頻率對電磁兼容測試-T
Abstract: The DS1086L is a 3.3V spread spectrum oscillator that is used in applications concerned with complying with electromagnetic compatibility (EMC) standards such as FCC part 15 or CISPR 22.Ideally with this architecture the peak pow...
2009-04-23 標簽：DS1086L 990
脈沖寬度調(diào)制(PWM）與MAXQ2000定時器-Pulse
Abstract: This application note shows how to use Timer Type 2 on a MAXQ2000 microcontroller to generate Pulse Width Modulation (PWM) waveforms. It also discusses issues that should be considered when using Timer Type 2 for PWM generation. ...
2009-04-23 標簽：脈沖 1261
如何升級MAXQ的串口-JTAG接口板的固件
摘要：本應(yīng)用筆記列出了在MAXQ®串口-JTAG開發(fā)板裝載固件的步驟，串口-JTAG板能夠用于所由MAXQ處理器的編程與調(diào)試。Maxim有時回更新接口板的固件，按照本文提供的步驟可以將新固...
2009-04-23 標簽： 1370
如何使用的CAN引導(dǎo)加載用戶應(yīng)用代碼MAXQ7665A-Ho
Abstract: This application note discusses the architecture of the CAN bootloader and the modifications needed to support the user application code on the MAXQ7665A microcontroller. OverviewThe CAN bootloader en...
利用MAXQ3210實現(xiàn)軟件UART
摘要：許多微控制器具有異步UART (串口)，為兩個器件之間的通信提供了一個簡單途徑，不需要相同的系統(tǒng)時鐘。本應(yīng)用筆記介紹了一個利用MAXQ3210微控制器的兩個標準端口，通過軟...
2009-04-23 標簽：MAXQ3210 1741
How to Generate PWM Waveforms
Abstract: This application note describes how to set up and use the Timer B in the MAXQ® family of microcontrollers to generate desired PWM waveforms. The action will require that the compare functionality be enabled. The note includes...
2009-04-23 標簽：microcontr 1367
MAXQ3210在光束報警系統(tǒng)中的應(yīng)用
摘要：本應(yīng)用筆記介紹了一個基于MAXQ3210 RISC微控制器的報警系統(tǒng)，外部光電傳感器作為報警觸發(fā)裝置。當光束被阻斷時會發(fā)出音頻報警信號。本文討論了不同的光電檢測模式和性能...
2009-04-23 標簽：MAXQ3210 1054
DS8113智能卡模擬接口評估套件使用說明
摘要：本應(yīng)用筆記介紹使用DS8113智能卡模擬接口評估(EV)套件的必要步驟。本文說明如何安裝、配置套件的硬件和軟件，如何創(chuàng)建、裝載MAXQ2000 RISC微控制器的執(zhí)行程序。這里提供了一...
2009-04-23 標簽：DS8113 908
在MAXQ2000數(shù)據(jù)存儲器中實現(xiàn)軟堆棧
摘要：本應(yīng)用筆記介紹了匯編應(yīng)用中在數(shù)據(jù)存儲器內(nèi)實現(xiàn)軟堆棧的簡單方法。該方法使用了MAXQ2000和其他基于MAXQ20的微控制器。采用了MAX-IDE的宏預(yù)處理特性，在Maxim的MAXQ®系列工程...
2009-04-23 標簽：MAXQ2000 1028
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