虫虫首页| 资源下载| 资源专辑| 精品软件
登录| 注册

ultra-FAST

  • Radio System Design for Telecommunication

    This book provides the essential design techniques for radio systems that operate at frequencies of 3 MHz to 100 GHz and which will be employed in the telecommunication service. We may also call these wireless systems, wireless being synonymous with radio, Telecommunications is a vibrant indus- try, particularly on the ‘‘radio side of the house.’’ The major supporter of this upsurge in radio has been the IEEE and its 802 committees. We now devote Ž . an entire chapter to wireless LANs WLANs detailed in IEEE 802.11. We also now have subsections on IEEE 802.15, 802.16, 802.20 and the wireless Ž . Ž metropolitan area network WMAN . WiFi, WiMax,, and UWB ultra wide- . band are described where these comparatively new radio specialties are demonstrating spectacular growth.

    标签: Telecommunication Design System Radio for

    上传时间: 2020-06-01

    上传用户:shancjb

  • Silicon-Based+RF+Front-Ends

    Ultra-wideband (UWB) technology enables high data-rate short-range communica- tion, in excess of hundredmegabit-per-secondsand up to multi-gigabit-per-seconds, over a wide spectrum of frequencies, while keeping power consumption at low lev- els. This low power operation results in a less-interfering co-existence with other existed communication technologies (e.g., UNII bands). In addition to carrying a huge amount of data over a distance of up to 230 feet at very low power (less than 0.5mW), the UWB signal has the ability to penetrate through the doors and other obstacles that tend to reflect signals at more limited bandwidths and higher power densities.

    标签: Silicon-Based Front-Ends RF

    上传时间: 2020-06-01

    上传用户:shancjb

  • RFID+Security

    Radio frequency identification (RFID) is a type of automatic identification systems which has gained popularity in recent years for being fast and reliable in keeping track of the individual objects. In RFID systems, contactless object identification is achieved using radio signals without the need for physical contact as the case with other existing identification technologies such as barcodes. Therefore, a huge number of items can be identified in a short amount of time with high reliability and low cost which makes the RFID technology very attractive for a wide range of applications such as supply chain management, e-health, monitoring humans, pets, animals, and many other objects, toll control, and electrical tagging. Furthermore, RFID technology eliminates the human error and reduces the total cost of the products.

    标签: Security RFID

    上传时间: 2020-06-08

    上传用户:shancjb

  • fft信号分析

    快速傅里叶变换,fft应用实例。供学习,供参考。 原理:快速傅里叶变换 (fast Fourier transform), 即利用计算机计算离散傅里叶变换(DFT)的高效、快速计算方法的统称,简称FFT。快速傅里叶变换是1965年由J.W.库利和T.W.图基提出的。采用这种算法能使计算机计算离散傅里叶变换所需要的乘法次数大为减少,特别是被变换的抽样点数N越多,FFT算法计算量的节省就越显著。

    标签: fft 信号分析

    上传时间: 2021-07-14

    上传用户:hhh4321

  • 74HC595 A4950 MAX3232 ULN2003AD STM32F207VCT6 AD集成封装库

    74HC595 A4950 MAX3232 ULN2003AD  STM32F207VCT6 AD集成封装库,原理图库器件型号列表:Library Component Count : 53Name                Description----------------------------------------------------------------------------------------------------1N4148              High Conductance Fast Diode1N4448              High Conductance Fast Diode1N914               High Conductance Fast Diode1N914A              High Conductance Fast Diode1N914B              High Conductance Fast Diode1N916               High Conductance Fast Diode1N916A              High Conductance Fast Diode1N916B              High Conductance Fast Diode2N3904              NPN General Purpose Amplifier74ALS86             74HC595             8M贴片晶振          A4950               直流电机驱动AO4805CAP                 CapacitorCAP SMD             CapacitorCON2                ConnectorCON2*10             ConnectorCON2*12P            ConnectorCON2*7              ConnectorCON2*9              ConnectorCON3                ConnectorCON4                ConnectorCON5                ConnectorCON7                ConnectorCap Pol             极性电解电容DIODE               DiodeFUSE1               FuseFUSE2               FuseINDUCTOR2           IRF7351PbF          N-MOSJS1-12V-FLED                 MAX487              MAX809RD            R0.125              Less than 1/4 Watt Power Resistor.RES2                RGRPI*4               Res1                ResistorSGM8955XN5G/TR      测量放大器SM712               SN74LV4052AD        SP3232ESST25VF016B-50-4I-S2AFI2C Real-Time Clock.STM32F107VTC6       STM32F107VTC6SW DIP-4            编码开关SW-PB               SwitchTPS54302            45UA静态电流 3ATVS                 SMBJ30CAULN2003             XC6214XTAL                Crystal OscillatorPCB封装库列表:Component Count : 40Component Name-----------------------------------------------4G模块-外置7D181K0603-LED0603C0603R0805C12061210181232255569-2*1P直针5569-2*2P直针AT-26CAP-D8DO-214AANHSOP-8J-SPDT-5JTAGL

    标签: 74hc595 a4950 stm32

    上传时间: 2021-11-15

    上传用户:ttalli

  • AC220V转DC(12V15W )电源板AD设计硬件原理图+PCB文件 2层板设计 大小为100

    AC220V转DC(12V15W )电源板AD设计硬件原理图+PCB文件,2层板设计,大小为100*55mm,   ALTIUM设计的原理图+PCB文件,可以做为你的学习设计参考。主要器件型号如下:Library Component Count : 24Name                Description----------------------------------------------------------------------------------------------------2N3904              NPN General Purpose Amplifier2N3906              PNP General Purpose AmplifierBRIDGE1             Diode BridgeCON2                ConnectorCap                 CapacitorCap Pol1            Polarized Capacitor (Radial)D Zener             Zener DiodeDIODE               Diode 1N914         High Conductance Fast DiodeECELECTRO2            Electrolytic CapacitorFP103               FUSE-HHeader 2            Header, 2-PinINDUCTOR2           NMOS-2              N-Channel Power MOSFETPC837               OptoisolatorRES2-B              Res Varistor        Varistor (Voltage-Sensitive Resistor)T                   TR-2B               TRANS1UCC28051            Volt Reg            Voltage Regulator

    标签: 电源 pcb

    上传时间: 2021-11-21

    上传用户:kent

  • RTL8201CP 规格书

    C10018_RTL8201CP-VD-LF_2012-11-22.PDFSINGLE-CHIP/SINGLE-PORT 10/100M FAST ETHERNET PHYCEIVER (With Auto Crossover) DATASHEET 

    标签: rtl8201cp

    上传时间: 2022-01-13

    上传用户:xsr1983

  • PW4203_2.0.pdf规格书下载

    PW4203 is a 4.5-22V input, 2A multi-cell synchronous Buck Li-Ion battery charger, suitable forportable application. Select pin is convenient for multi-cell charging. 800 kHz synchronous buckregulator integrates of 22V rating FETs with ultra low on- resistance to achieve high efficiency andsimple circuit design.The PW4203 is available in an 8-pin SOP package, provides a very compact system solution andgood thermal conductance

    标签: pw4203

    上传时间: 2022-02-11

    上传用户:

  • PW3130_2.0.pdf规格书下载

    The PW3130 series product is a high integration solution for lithium-lion/polymer batteryprotection.PW3130 contains advanced power MOSFET, high-accuracy voltage detection circuits anddelay circuits. PW3130 is put into an ultra-small SOT23-5 package and only one external componentmakes it an ideal solution in limited space of battery pack. PW3130 has all the protection functionsrequired in the battery application including overcharging, overdischarging, overcurrent and loadshort circuiting protection etc. The accurate overcharging detection voltage ensures safe and fullutilization charging.The low standby current drains little current from the cell while in storage. Thedevice is not only targeted for digital cellular phones, but also for any other Li-Ion and Li-Polybattery-powered information appliances requiring long-term battery life

    标签: pw3130

    上传时间: 2022-02-11

    上传用户:fliang

  • PW2330-2.0.pdf规格书下载

    PW2330 develops a high efficiency synchronous step down DC-DC converter capable of delivering3A output current. PW2330 operates over a wide input voltage range from 4.5V to 30V andintegrates main switch and synchronous switch with very low RDS(ON) to minimize the conductionloss. PW2330 adopts the proprietary instant PWM architecture to achieve fast transient responsesfor high step down applications and high efficiency at light loads. In addition, it operates atpseudo-constant frequency of 500kHz under continuous conduction mode to minimize the size ofinductor and capacitor

    标签: pw2330

    上传时间: 2022-02-11

    上传用户: