使用CC2591作为CC2530的功放
使用CC2591作为CC2530的功放, CC2591 PAThe absolute maximum ratings and operating conditions listed in the CC2530 datasheet [1]and the CC2591 datasheet [4] must be followed at all times. Stress exceeding one or more ofthese limiting values may cause permanent damage to any of the devicesNote that these characteristics are only valid when using the recommended register settingspresented in Section 4.6 and in Chapter 8, and the CC2530 - EM reference designOperating Frequency240524835MHzOperating Supply Voltage2036VOperating Temperature-40CTC=25C, VDD=3.0V, f=2440 MHz if nothing else is stated. All parameters are measuredon the CC2530-Cc2591EM reference design [11] with a 50 Q2 loadReceive CurrentWait for sync, -90 dBm input levelWait for sync, -50 dBm input level24mATXPOWER OXE5166mATXPOWER OXD5149mATXPOWER OXC5138mATXPOWER OXB5127mATransmit currentTXPOWER OXA5115ATXPOWER = 0X95100mATXPOWER = 0X8594ATXPOWE=0×75mATXPOWE=0×6579APower Down Current PM2UAISTRUMENTSPage 3 of 19SWRA308ATC=25C, Vdd=3.0V, f= 2440 MHz if nothing else is stated. All parameters are measuredon the CC2530-CC2591 EM reference design with a 50 Q2 loadReceive Sensitivity HGM 1 %PER, IEEE 802. 15.4[6] requires -85 dBm-988dBmReceive Sensitivity LGM1 PER, IEEE 802. 15.4 [6] requires -85 dBm-90.4dBmSaturationlEEE 802.15. 4 [6] requires-20 dBm10dBmWanted signal 3 db above the sensitivity levelIEEE 802.15.4 modulated interferer at ieee 802.15.4 channelsInterferer Rejection+5 MHz from wanted signal, IEEE 802. 15. 4 [6] requires 0 dBdB+10 MHz from wanted signal, IEEE 802. 15. 4 [6] requires 30 dB49dB+20 MHz from wanted signal wanted signal at- 82d BmdBdue to in the external lna and the offset in cc2530 the rssi readouts from cc2530CC2591 is different from rssi offset values for a standalone cc2530 design the offsetvalues are shown in table 4.4High Gain Mode79LoW Gain mode67Real rssi Register value-Rssl offsetISTRUMENTSPage 4 of 19SWRA308ATc=25C, Vdd=3.0V, f=2440 MHz if nothing else is stated All parameters are measuredon the CC2530-CC2591 EM reference design with a 50 Q2 load Radiated measurements aredone with the kit antennaRadiated Emissionwith TXPOWer Oxe5Conducted 2. RF (FCC restricted band)-462|dBmConducted 3. RF(FCC restricted band46.5 dBmComplies withFCC 15.247. SeeChapter 7 for moredetails about regulatoryRadiated 2.RF(FCC restricted band)42.2dBmrequirements andcomplianceIEEE 802.15.4[6]requires max.35%%Measured as defined by IEEE 802.15. 4 6TXPOWER OxE5. f= EEE 802.15. 4 channels13TXPOWER= OXD5. f= EEE 802.15.4 channelsTXPOWER= OXC5 f= EEE 802.15.4 channelsMax error∨ ectorTXPOWER OxB5 f= IEEE 802.15. 4 channelsMagnitude(EVM)TXPOWER OxA5. f= IEEE 802.15.4 channelsTXPOWER 0X95. f= IEEE 802. 15.4 channels643333%%%%%%%TXPOWER= 0x85. f= iEEE 802. 15.4 channelsTXPOWER =0x75 f= IEEE 802. 15.4 channels%TXPOWER= 065. f= iEEE 802. 15.4 channelsThe RF output power of the CC2530- CC2591 EM is controlled by the 7-bit value in theCC2530 TXPOWER register. Table 4.6 shows the typical output power and currentconsumption for the recommended power settings The results are given for Tc= 25 C, Vdd3.0V and f= 2440 MHz, and are measured on the cC2530-CC2591 EM reference designwith a 50 Q2 load. For recommendations for the remaining CC2530 registers, see Chapter 8 oruse the settings given by SmartRF StudioOXE520166OxD519149OxC18138OxB517127OxA5161150x95141000x8513940X75860x651079Note that the recommended power settings given in Table 4.6 are a subset of all the possibleTXPOWER register settings. However, using other settings than those recommended mightINSTRUMENTSPage 5 of 19SWRA308Aresult in suboptimal performance in areas like current consumption, EVM, and spuriousemissionTc=25C, Vdd=3.0V, f=2440 MHz if nothing else is stated All parameters are measuredon the CC2530-CC2591EM reference design with a 50 32 load2221-2V201918171611121314151617181920212223242526251510OxE5OxC5OxA50X850x65540-30-20-1001020304050607080ISTRUMENTSPage 6 of 19SWRA308A98Avg 3.6VAva 3vAvg 2V110111213141516171819202122232425261023.6V-1062V-110-40-30-20-100102030405060708070604020-Wanted signal at:-82 dBm10ISTRUMENTSPage 7 of 19SWRA308ACC2530-CC2591EM High Gain ModeC C2530-CC2591EM Low Gain Mode- CC2530EM40000-100110100908070-60-50-40-30-20-100The IEEE standard 802.15. 4 [8] requires the transmitted spectral power to be less than thelimits specified in table 4.7If-fc>3.5 MHz-20 dB-30 dBmThe results below are given for Tc=25 C, Vdd=3.0V and f= 2440 MHz, and are measuredon the CC2530-CC259 1EM reference design with a 50 Q loadIEEE absoluteChannel 182432.52435243752442524452447.5ISTRUMENTSPage 8 of 19SWRA308AOnly a few external components are required for the CC2530-CC2591 reference design. Atypical application circuit is shown below in Figure 5.1. Note that the application circuit figuredoes not show how the board layout should be done. The board layout will greatly influencethe RF performance of the CC2530-CC2591EM. TI provides a compact CC2530CC2591 EM reference design that it is highly recommended to follow. The layout, stack-upand schematic for the CC2591 need to be copied exactly to obtain good performance. Notethat the reference design also includes bill of materials with manufacturers and part numbersL102 L10=TI INF inductorVDD13cc2530LA 1RF PANTCC2591 RF NFNPA EN(P1 1)i工工I NA FNP:1HGM ENPO 7)T:1Proper power supply decoupling must be used for optimum performance. In Figure 5.1, onlythe decoupling components for the CC2591 are shown. This is because, in addition todecoupling, the parallel capacitors C11, C101, and C131 together with, L101, L102, TL11TL101 and TL131 also work as RF loads. These therefore ensure the optimal performancefrom the CC2591. C161 decouples the AvDD blAs power.The placement and size of the decoupling components, the power supply filtering and thePCB transmission lines are very important to achieve the best performance Details about theimportance of copying the CC2530-CC2591EM reference design exactly and potentialconsequences of changes are explained in chapter 6The RF input/output of CC2530 is high impedance and differential. The CC2591 includes abalun and a matching network in addition to the PA, LNa and RF switches which makes theinterface to the CC2530 seamless. Only a few components between the CC2530 andCC2591 necessary for RF matching For situation with extreme mismatch(VSWR 6: 1 till 12: 1out-of-band as shown in Figure 6.2) it is recommended to include all the components asshown in Figure 5.1ISTRUMENTSPage 9 of 19SWRA308ANote that the PCB transmission lines that connect the two devices also are part of the RFmatching. It is therefore important to copy the distance between the devices, the transmissionlines and the stack-up of the PCB according to the reference design to ensure optimumperformanceThe network between the CC2591 and the antenna(L111, C112, C111 C113 and L112matches the CC2591 to a 50 2 load and provides filtering to pass regulatory demands. C111also works as a dc-blockR151 is a bias resistor the bias resistor is used to set an accurate bias current for internaluse in the cc2591The TI reference design contains two antenna options. As default, the Sma connector isconnected to the output of CC2591 through a 0 Q2 resistor. This resistor can be soldered offand rotated 90 clockwise in order to connect to the PCB antenna, which is a planar invertedF antenna(PIFA). Note that all testing and characterization has been done using the SMAconnector. The PCB antenna has only been functionally tested by establishing a link betweentwo EMs. Please refer to the antenna selection guide [6] and the Inverted F antenna designnote [7 for further details on the antenna solutionsISTRUMENTSPage 10 of 19SWRA308A
- 2020-11-30下载
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毕业答辩 USB上位机设计
我是毕业于重庆大学通信工程学院集成电路设计与集成系统2010级学生。我的本科毕业设计题目是串口/USB接口的上位机软件设计。这是我答辩用的PPT。串口/USB接口的上位机设计1绪论(1)选题背景和研究意义工业生产和科学研究对现场数据采集、处理的需求,使得高校、便捷的上位机应用到数据采集系统。(2)国内外研究现状数据采集产品alibaba com.tn产品实物图串口儿USB接口的上位机设计2方案对比与选择(1)数据采集系统整体框图该系统主要由以下几个功能模块组成,如下图所示。SDRAM乒乓缓冲USBA模拟信号FPGA主控转换制器数据传输上位机软件外围配置系统功能模块框图(2)方案对比与选取口八USB2.0特征比较表特征插接操作性「成本传输传输速度是否需开发难度「发展性距离驱动方案不方便,体较慢,最串口积较大,需低长快达否简单接近淘汰重启230Kbps方便,小巧快,广泛普及USB20即插即用高短480Mbps是复杂前景光明数据釆集系统的关键指标和要求是精确和高速结合上表选取USB接口来进行系统中的数据传输。串口八USB接口的上位机设计3USB固件和驱动设计(1)USB芯片固件设计电复位初始化状态变量固件设计包括调用 TD Init(,使能中断主程序、初始化是否需要重枚举?是延时1.5s,重枚举子程序,重枚举否子程序,处理设一是否收到EUP包2是→分析命令,执行请求备请求子程序等主要子程序。是否产生中断挂起?是挂起处理器否是否收到唤醒信号?否/唤醒处理器调用TD_Po|()固件主程序流程图(2)UB2.0驱动设计为 Driverizard叵网Step Navigation Project Summary For微软用户Project Name= CQU USB [04441314Project NameProject Location =E: DRIVER dr3CQU USB[044413142. ProJect TypeProject Type=WDM驱动设3. Driver TypeHandle rP M reAd4. Hardware busHandle rP M] Write5. USB ResourcesHandle rP M device CoNtrol计参数配需andersDriver Tupe FUNCTIONALHardware bus= useB RegistryHardware=凵SBWv|D①44&FD1314置最终界4. Power0. WHInstallation面如下图2 Additional3. Summary所示HelBack屬Mext1 nish Cance1参数配置界面申SB接口的上位机设計4上位机软件设计上位机软件设计下图为上位机设计的流程图。开始变量定义并初始化数据处理并计算USB连接成功八否否数波形显数据保存?值是开启线程示数据再现?/诉开启采集?打开数据窗体上位机设计流程图串口闶SB接口的上位机設5调试运行整体调试重庆大学通信工程学院USB BLASTER6-FPGA JTAGJ7-FPGACyclone.I;U57FPGA+2SDRNYMUSB2AJ16Cyclone.Il调试过程CHFIu12J5RC5510 20M ADC MODULE zo 9oU58LIANGZIUSB硬件实物串口SB接口的上位机设许5调试运行(1)固件下载和驱动安装USB芯片的固件程序可通过 EZ-USB Control panel在线下载和固化,界面显示如下图所示。EZ-USB InterfaceDevice cypress Ez-USB FX2LP No ebL Clear Load Mon s EEPROM Select MonGEt DeGet Conf Get Pipes Get String= Down ade-Load Lg EEPRom URE Statvend Req Req 0x00 Value 0x0000 Index 0x0000 Length 0Dir o OUTHex Bytes CO B4 04 81 00 01 00so TranPipeLength 128Packet siBulk Trans PipeLength 64Hex BytesReset Pipe Abort Pipe File TransPipeSet IFace Interface DAltsetting 0ev立e⑩e三iPt了lEngthbDescriptorfype: 1bcdUSB: 0x0200bDevicecla33. 0xFE上 Devices1kC1a:xEFbDeviceFrotoc口LOHEEbMaxpackets立ze0:4vEndorx04B4立 aProductX613bcdDevice032001mAnufActurer. 0立adct立三e〓i卫 NUTE:上 unConEiquratior固件下载界面
- 2020-12-08下载
- 积分：1
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