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Measurements on 3GPP WCDMA User-CMUGO07-5
Fig.5.12_6:Measurementre；Nearlyallreceivertestsar；Fig.6.4_1:TestsetupforAd；Fig.6.4_3:CallSetupconfi；Fig.6.4_4:GeneratorSetup；
Fig. 5.12_6:
Measurement report for Transmit Intermodulation test
As indicated in Fig. 5.12_6, the contribution at channel 9725 (offset
-5 MHz) is not an intermodulation product but the adjacent channel power of the UE itself. The other results are far below the standard limits.3 Receiver TestsNearly all receiver tests are bit error measurements. For these tests, a loop inside the device under test is closed to re-transmit the received,
demodulated, and corrected bits. To make sure that the uplink does not contribute additional errors, the output power of the device under tests is fairly high. The bit error rate (BER) is counted inside the CMU200. The confidence level and the test time depend on the number of transport blocks that are checked for one result. The standard TS 34.121 does not prescribe how many blocks to take. As an acceptable compromise, we recommend 500 blocks. Because one transport block uses two frames, i.e. 20 ms, the time for one measurement will be 10 s.
6.4 Adjacent Channel Selectivity Adjacent channel selectivity (ACS) is a measure of a receiver's ability to receive a WCDMA signal at its assigned channel frequency in the presence of an adjacent channel signal at a given frequency offset from the center frequency of the assigned channel. ACS is the ratio of the receive filter attenuation on the assigned channel frequency to the receive filter attenuation on the adjacent channels. The purpose of this test is to verify that the BER does not exceed 0.001 for the parameters specified in Table 6.4. Parameter Level / Status Unit DPCH_Ec ?103 dBm / 3.84 MHz Ioac (modulated) ?52 dBm / 3.84 MHz Fuw (offset) ?5 or +5 MHz
Table 6.4: Test parameters for adjacent channel selectivity where DPCH_Ec: Absolute power of the data channel of the downlink signal ?or:
Total power of the downlink signal Ioac:
Total power of the (modulated) interferer
Recommended test setup: Fig. 6.4_1 shows the test setup for adjacent channel selectivity measurements. The WCDMA interferer is generated by an SMx signal generator. It is added to the CMU200 signal using a resistive combiner. The generator is protected against the transmit power of the UE by a 10 dB attenuator. Fig. 6.4_1:
Test setup for Adjacent Channel Selectivity test
Instruments and accessories: ? CMU200, SMIQ ? Resistive combiner: up to 2.5 GHz (e.g. Weinschel 1515-1) ? Attenuator 10 dB, up to 2.5 GHz (e.g. Suhner)
Path loss compensation: ? Measure the path loss between UE and CMU200. ? Measure the path loss between UE and signal generator.
Test procedure: 1) Connect instruments and user equipment as shown in Fig. 6.4_1. 2) Run CMUgo, click File, Load Sequence, and select WCDMA_6.4.seq. 3) Click Configuration in the menu bar, and then Configure Tests
The window Configure Test Items opens. The left column contains all available test items. The right one shows which test items have been selected to build test sequence 6.4.Fig. 6.4_2: Available and selected test items (test sequence) for Adj. Channel Selectivity
Adapt the test items WCDMA Call Setup and WCDMA UE RX Adj. Chan. Selectivity to your requirements as follows: 4) Double-click WCDMA Call Setup in the list of the selected test items. The window Call Setup Configuration opens:Fig. 6.4_3: Call Setup configuration
5) Enter the path loss you measured between UE and CMU200 as Input Attenuation and Output Attenuation (lower left in Fig. 6.4_3)) 6) If necessary, modify RF Downlink / Uplink Channel. 7) Click OK.You are back in the Configure Test Items window (Fig. 6.4_2). Now configure the test item WCDMA UE RX Adj. Chan. Selectivity. 8) Double-click WCDMA UE RX Adj. Chan. Selectivity. The window Settings for WCDMA UE RX adjacent channel selectivity opens:Fig. 6.4_4: Generator Setup for Adjacent Channel Selectivity
9) Enter UE Power. For UE power class 4, enter 18 dBm. For UE power class 3 and higher, enter 20 dBm. 10) Enter the interferer Scrambling
Code that is not identical with the scrambling code used for the connection. 11) Enter the Path Loss between UE and signal generator. 12) Enter the No of Transport Blocks that are used for one BER calculation (recommended 500 blocks). 13) If necessary, enter your individual levels and limit values. (The DPCH_Ec level is set automatically to 10.3 dB below the Ior level.) 14) To reset those values to the standard TS 34.121, click the button Use Std. Values. 15) Click OK. You are back in the Configure Test Items window (Fig. 6.4_2). The items are now configured. 16) Click OK.
To start the measurement: 17) Click the start icon in the menu bar of CMUgo (Fig. 5.11_6).包含各类专业文献、各类资格考试、专业论文、行业资料、中学教育、幼儿教育、小学教育、应用写作文书、Measurements on 3GPP WCDMA User-CMUGO07等内容。　
　3GPP定义的WCDMA频谱_互联网_IT/计算机_专业资料。3GPP定义的WCDMA频谱5...If the UE is on a network with Mobile Country Code set to Japan then ... 　WCDMA 主要信令流程 4 WCDMA 主要信令流程 User ...measurements Registration Area changes CM requests ...Core Network Stage 3 3GPP TS23.060 3GPP TS29.... 　WCDMA 频段设置_信息与通信_工程科技_专业资料。Downlink...(MHz) 3GPP TS 25.101 Downlink UARFCN Range ...set Frequency Band Indicator State to On and Band... 　WCDMA射频指标测试指导--HSDPA&HSUPA篇_电子/电路_工程科技_专业资料。WCDMA射频指标测试指导WCDMA 射频指标测试--HSDPA 篇前言:本文档主要介绍根据 3GPP 34.121,使... 　Report on Technical Options and 关于 3GPP 系统架构...Measurements 19 TS 36.300 物理层过程 物理层测量...User Plane protocol 48 TS 36.508 49 TS 36.... 　3GPP R4、R5、R6标准研究报告_信息与通信_工程科技...measurements for 1.28 Mcps TDD 华为 WCDMA 数字...硬分裂模式的增强:Enhancement on the DSCH hard ... 　WCDMA 全套测试规范---Iu测试规范(最终版)_信息与...on Signalling Procedures&. [11] 3GPP TS 29.060...User Plane Information Element Mobile-services ... 　3GPP协议中文版-003_信息与通信_工程科技_专业资料。...II 通信标准参考性技术文件 IMT-DS FDD(WCDMA)系统...25.215: &Physical layer - Measurements (FDD)&.... 　这是 3GPP 制定 WCDMA 标准时,期望利用广泛的 GSM...TS25.215 v3.12.0 Physical layer-Measurements (...TS25.101 v3.17.0 User Equipment (UE) radio ...LM22674QMRX-ADJ/NOPB (TI) PDF技术资料下载
LM22674QMRX-ADJ/NOPB 供应信息 IC Datasheet 数据表 (12/22 页)
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LM22674 / LM22674 -Q1 42V ， 500毫安SIMPLE SWITCHER?(R)降压型稳压器与特点
[LM22674/LM2V, 500 mA SIMPLE SWITCHER?(R) Step-Down Voltage Regulator with Features]
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LM22674 / LM22674 -Q1 42V ， 500毫安SIMPLE SWITCHER?(R)降压型稳压器与特点[LM22674/LM2V, 500 mA SIMPLE SWITCHER?(R) Step-Down Voltage Regulator with Features]
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SNVS590L – SEPTEMBER 2008 – REVISED APRIL 2013It is good practice to include a high frequency bypass capacitor as close as possible to the LM22674. This smallcase size, low ESR, ceramic capacitor should be connected directly to the VIN and GND pins with the shortestpossible PCB traces. Values in the range of 0.47 uF to 1 uF are appropriate. This capacitor helps to provide alow impedance supply to sensitive internal circuitry. It also helps to suppress any fast noise spikes on the inputsupply that may lead to increased EMI.OUTPUT CAPACITORThe output capacitor is responsible for filtering the output voltage and supplying load current during transients.Capacitor selection depends on application conditions as well as ripple and transient requirements. Bestperformance is achieved with a parallel combination of ceramic capacitors and a low ESR SP(TM) or POSCAP(TM)type. Very low ESR capacitors such as ceramics reduce the output ripple and noise spikes, while higher valueelectrolytics or polymer provide large bulk capacitance to supply transients. Assuming very low ESR, thefollowing equation gives an approximation to the output voltage ripple:(14)Typically, a total value of 100 uF, or greater, is recommended for output capacitance.In applications with Voutless than 3.3V, it is critical that low ESR output capacitors are selected. This will limitpotential output voltage overshoots as the input voltage falls below the device normal operating range.BOOT-STRAP CAPACITORThe bootstrap capacitor between the BOOT pin and the SW pin supplies the gate current to turn on the N-channel MOSFET. The recommended value of this capacitor is 10 nF and should be a good quality, low ESRceramic capacitor. In some cases it may be desirable to slow down the turn-on of the internal power MOSFET, inorder to reduce EMI. This can be done by placing a small resistor in series with the Cbootcapacitor. Resistors inthe range of 10Ohm to 50Ohm can be used. This technique should only be used when absolutely necessary, since itwill increase switching losses and thereby reduce efficiency.OUTPUT VOLTAGE DIVIDER SELECTIONFor output voltages between about 1.285V and 5V, the -ADJ option should be used, with an appropriate voltagedivider as shown inThe following equation can be used to calculate the resistor values of this divider:(15)A good value for RFBBis 1kOhm.This will help to provide some of the minimum load current requirement andreduce susceptibility to noise pick-up. The top of RFBTshould be connected directly to the output capacitor or tothe load for remote sensing. If the divider is connected to the load, a local high-frequency bypass should beprovided at that location.For output voltages of 5V, the -5.0 option should be used. In this case no divider is needed and the FB pin isconnected to the output. The approximate values of the internal voltage divider are as follows: 7.38kOhm from theFB pin to the input of the error amplifier and 2.55kOhm from there to ground.Both the -ADJ and -5.0 options can be used for output voltages greater than 5V, by using the correct outputdivider. As mentioned in thesection, the -5.0 option is optimized for output voltages of 5V.However, for output voltages greater than 5V, this option may provide better loop bandwidth than the -ADJoption, in some applications. If the -5.0 option is to be used at output voltages greater than 5V, the followingequation should be used to determine the resistor values in the output divider:(16)Again a value of RFBBof about 1kOhmis a good first choice.12Product Folder Links:Copyright (C) , Texas Instruments IncorporatedIC型号LM22675QMRX-ADJ,【SNVS591K - 2008年9月 - 修订2013年3月LM2】,LM22675QMRX-ADJ PDF资料,LM22675QMRX-ADJ经销商-51电子网
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LM22675SNVS591K - 2008年9月 - 修订2013年3月LM22675 / LM22675Q 42V ， 1A SIMPLE SWITCHER(R)降压型稳压器具有特点检查样品：LM226751特点宽输入电压范围： 4.5V至42V内部补偿的电压模式控制稳定的低ESR陶瓷电容器200 mΩ的N沟道MOSFET输出电压选项：–-ADJ （输出低至1.285V ）–-5.0 （输出固定为5V ）± 1.5 ％反馈参考精度500 kHz的开关频率-40 ° C至125°C的工作结温度范围精密使能引脚集成自举二极管集成的软启动充分WEBENCH(R)启用降压和反相降压 - 升压应用LM22675Q是一个汽车级产品这是AEC - Q100 1级合格（ -40 ° C至+ 125°C的工作结温）使用PowerPad SO -8 （裸露焊盘）封装描述该LM22675开关稳压器提供所有的要实现有效的高功能使用最小电压的降压型（buck ）稳压器的外部元件。这个易于使用的稳压器集成了一个42V N沟道MOSFET开关能够提供高达1A的负载电流的。出色的线路和负载调节以及高效率（ &90 ％ ）的特点。电压模式控制提供导通时间短最小，允许的最宽输入和输出电压之间的比率。内环路补偿装置，该用户是免费的计算环路补偿的繁琐的任务组件。固定的5V输出和可调输出电压选项。开关频率500千赫允许使用小尺寸外部元件和良好的瞬态响应。精密使能输入使调节器控制和系统的简化电源排序。在关断模式下，稳压器仅消耗25 μA （典型值） 。内置软启动（为500μs ，典型值）节省了外部元件。该LM22675还具有内置热关断和限流防止意外过载。该LM22675是德州仪器的一员“简单SWITCHER(R)家庭。该简单切换器概念提供了一种易于使用的使用外部最低数量完整的设计组分和TI的WEBENCH设计工具。 TI的WEBENCH工具包括功能，如外部组件计算，电气模拟，热仿真和建造，其板，便于设计而定。ooooo23oooooooooo应用oooo工业控制电信和数据通信系统嵌入式系统从标准24V ， 12V和5V的转换输入轨简化的应用原理VINVINFBLM22675-ADJBOOTVOUTENGNDSW123请注意，一个重要的通知有关可用性，标准保修，并且在关键的应用程序中使用德州仪器公司的半导体产品和免责条款及其出现在此数据表的末尾。SIMPLE SWITCHER ， WEBENCH是Texas Instruments的注册商标。所有其他商标均为其各自所有者的财产。版权所有(C) 年，德州仪器PRODUCTION数据信息为出版日期。产品符合占德州条款规范仪器标准保修。生产加工过程中不不一定包括所有参数进行测试。LM22675SNVS591K - 2008年9月 - 修订2013年3月接线图BOOT18SWNC27VINNC346GNDFB5EN裸露焊盘连接到GND图1. 8引脚SO PowerPAD的- 8封装见包装数DDA0008B引脚说明PIN号12, 345678EP名字BOOTNCFBENGNDVINSWEP描述自举输入没有连接反馈引脚使能输入地输入到调节器;常见的系统输入电压开关引脚裸露焊盘应用信息提供栅极电压为高压侧NFET 。引脚没有电气在芯片内部连接。引脚做功能热导体。反馈输入稳压器。用来控制稳压器的启动和关机。见精密启用数据表中的部分。系统接地引脚。输入电源稳压器稳压器的开关量输出连接到地面。提供PCB的热连接。看应用信息。这些器件具有有限的内置ESD保护。引线应短接在一起或设备放置在导电泡棉储存或搬运过程中，以防止对静电损坏MOS大门。2提交文档反馈产品文件夹链接：LM22675版权所有(C) 年，德州仪器LM22675SNVS591K - 2008年9月 - 修订2013年3月绝对最大额定值(1) (2)VIN至GNDEN引脚电压SW到GND(3)43V-0.5V至6V-5V到VINVSW+ 7V-0.5V至7V内部限制150°CBOOT引脚电压FB引脚电压功耗结温焊接规格，请参阅下列文档：/lit/snoa549ESD额定值(4)人体模型存储温度范围(1)± 2千伏-65 ° C至+ 150°C(2)(3)(4)最大极限值是指超出这可能会损坏设备的限制，包括不可操作性和退化设备的可靠性和/或性能。该设备和/或无退化的绝对最大额定值的功能操作或超越那些在推荐工作额定值表明其他条件是不是暗示。推荐工作额定值表示的条件，在该装置正常运行并且不应该超出这样的条件下操作。如果是用于军事/航空专用设备，请向德州仪器销售办事处/经销商咨询具体可用性和特定连接的阳离子。在“ SW到GND ”的绝对最大规格适用于直流电压。 -10V的扩展负电压极限适用于脉冲的最高达50毫微秒。使用人体模型，一个100pF的电容通过一个1.5 kΩ电阻向每个引脚放电ESD应用。(1)工作额定值电源电压（VIN)4.5V至42V-40°C至+ 125°C结温范围(1)最大极限值是指超出这可能会损坏设备的限制，包括不可操作性和退化设备的可靠性和/或性能。该设备和/或无退化的绝对最大额定值的功能操作或超越那些在推荐工作额定值表明其他条件是不是暗示。推荐工作额定值表示的条件，在该装置正常运行并且不应该超出这样的条件下操作。版权所有(C) 年，德州仪器提交文档反馈产品文件夹链接：LM226753LM22675SNVS591K - 2008年9月 - 修订2013年3月电气特性在标准型限为TJ= 25只;在限额黑体字适用于结点温度（TJ）范围为-40°C至+ 125°C 。最小和最大极限值，确保通过测试，设计或统计数据。典型值最可能的参数指标在TA= TJ= 25 ℃，仅供参考。除非另有规定：VIN= 12V.参数LMVFBLM22675-ADJVFBIQISTDBYICLILRDS （ ON）fOT最小间歇TONMINIBIASVENVENhystIENTSDθJA反馈电压静态电流待机静态电流电流限制输出漏电流开关导通电阻振荡器频率最小关断时间最小导通时间反馈偏置电流启用阈值电压启用电压迟滞使能输入电流热关断阈值热阻MR封装，结到环境热阻(3)EN输入= 0VVFB= 1.3V （ ADJ版本）落下1.3400100VIN= 42V ， EN引脚= 0V ，VSW= 0VVSW= -1VVIN= 4.7V至42VVFB= 5VEN引脚= 0V1.3/1.21.266/1.2591.2853.4251.50.20.10.25002001002301.60.66150601.91.304/1.3116401.7/1.8230.24/0.32600300VmAuAAuAuAOhm千赫nsnsnAVVuA°C° C / W所有输出电压版本反馈电压VIN= 8V至42V4.925/4.95.05.075/5.1V测试条件民(1)典型值(2)最大(1)单位(1)(2)(3)最小和最大限制是100 ％的产品在25 ℃的测试。限制在工作温度范围内，确保了相关利用统计质量控制（ SQC）方法。这些极限值可用来计算TI公司的平均出厂质量水平（ AOQL ） 。典型值代表最可能的参数规范，在规定的条件并不能保证。的值θJA为所述SO PowerPAD的-8裸焊盘封装60 ℃/ W的是有效的，如果包被安装到铜的1平方英寸。该θJA值的范围为42? 115 ° C / W取决于PCB专用铜传热的量。4提交文档反馈产品文件夹链接：LM22675版权所有(C) 年，德州仪器LM22675SNVS591K - 2008年9月 - 修订2013年3月典型性能特性除非另有规定，适用下列条件： VIN = 12V ，TJ= 25°C.英法fi效率VS我OUT和VINVOUT= 3.3V归一化的开关频率与温度图2中。电流限制与温度网络连接gure 3 。归一化?DS （ ON）与温度图4中。反馈偏置电流与温度图5中。归启用阈值电压与温度图6 。图7 。版权所有(C) 年，德州仪器提交文档反馈产品文件夹链接：LM226755
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