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| NS气象遥控检测解决方案 | |||||
作者：NS 文章来源：本站 点击数： 更新时间：2007-3-19  |
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 Gadgets that inform the consumer of temperature and barometric changes, such as a meteorological remote sensing unit, are becoming more popular as these devices are able predict the weather with more precision and accuracy. National completes the analog signal chain beginning with temperature sensors, conditioning through operational amplifiers, converting to digital with A/D converters, then either storing into memory or displaying using Nationals display technology. Component Highlights * Temperature sensor - digital and analog sensors have accuracies of 0.5-1degC, and, with current output or two-wire interface, are ideal for remote sensing applications. * Operational amplifier - precision RRIO low-power amplifiers include high-impedance CMOS devices to minimize loading of sensors and have a wide supply range to accommodate a variety of battery voltages. * A/D converter - high 10-bit or greater resolution and accuracy of 1lsb or better enable high quality instrumentation, while software powerdown saves power. * LDO - ultra-low dropout voltage with excellent supply rejection near dropout keep system performance high over the life of the battery 1 Shaded Temp LM63CIMA LM63CIMAX LM73CIMK-0 2 UnShaded Temp LM63CIMA LM63CIMAX LM73CIMK-0 3 Digital Temperature Sensors LM99CIMM LM99-1CIMM LM63CIMAX 4 Amp LMP7701MF LMP7701MFX LMP7704MT 5 MUX DS90CP22MX-8 DS90CP22MTX DS90CP22MT 6 Reference LM4120 LM4125 LM4140 7 ADC ADC101S101 ADC102S021 ADC104S021 8 Microcontroller LMV225 LMV226 LMV228 9 LCD Panel  As display manufactures lower prices, improve performance, extend display size ranges, and adopt new, innovative form factors, they are penetrating a wider range of applications. Design your displays using Nationals expertise in portable applications and innovative packaging. Component Highlights * TFT panel module - LM2702 is a compact bias solution, with integrated Vcom and Gamma buffers, ideal for large screen LCD panels. * Panel timing controller - with LVDS technology, these controllers have programmable outputs with customized control for standard or in-house column drivers and row drivers. * Vcom reference amplifier - LM8262 is a RRIO operational amplifier specifically designed to handle the Vcom driver requirements of TFT flat panels. * Audio amplifier - Overture® amplifiers deliver audio power with high efficiency and require few external components, making them ideal for slim LCD panels (1) Integrated LVDS Rx+Tcon DS90C3201VS DS90C3202VS DS90C365AMT (2) Gamma Reference Voltage LMP7701 LMP7704 LMP8270 (3) Vcom Reference LMH6624 LMH6626 LMH6628 (4) TFT Panel Modules DS90C3201VS DS90C3202VS DS90C365AMT (5) Switching Regulator (6) LDO LP2997 LP38690 LP38691 10 Ethernet DP83847ALQA56AX DP83847ALQA56A DP83848TSQ 11 Voltage Regulator LM2936 LP2966 LP2967 |
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