U4T3SC

SC 切10MHz43U 高精密晶体性能指标
撰文：张严顺
SC 切晶体以其独特的性能，在高端频率控制元件里逐渐替代了AT 切晶体，成为恒温晶振（OCXO ）的首选核心，特别是10MHz 、SC 切三次泛音晶体得到广泛使用。

此款晶体目前采用43U 封装类型，当然也有厂家在研究推出更小尺寸的45U 晶体。

SC 切10MHz 三次泛音晶体采用镀金电极，冷压焊真空封装，提高了气密性，减少了对晶片的污染。

稳定度高、频率温度系数小及具有良好的可靠性和老化特性。

下面对其相关性能指标作简单介绍，供设计或使用者参考。

标称频率：10.000MHz
切型：SC 切
振动模式：三次泛音
负载电容：20PF （可根据需要选择）
零温度系数点（即拐点）范围：82℃～92℃
等效电阻：≤100Ω
调整频差：≤±2PPM （相对拐点范围）
静电容（C0）：2.3pF ±15%
动态电容（C1）：0.19±0.04fF
品质因数（Q 值）：>900K
绝缘电阻：≥500M Ω DC100V
激励功率：100μW
老化率：≤±0.05ppm/year
B 模：10.9～11.0MHz
漏率：≤1Ⅹ10-9Pa.m 3/S
DLD2（0.05μW ～400μW ）：≤10Ω （在常温或拐点温度范围内） 其它参数或要求可与生产厂家协商达成一致。

外形尺寸。

Teaching Plan for Grade 9 Unit4 Topic3China is the third nation that sent a person into space. Section C….S1: It’s about the Internet.The Internet has changed the world.The world is connected. The Internet is making the world smaller, like a village.设计意图：利用视频活跃课堂氛围，激发学生的学习兴趣，使学生尽快进入英语学习的状态。

让学生很快联想到互联网，自然引出主题。

步骤二、Pre-reading 4’1．预测电脑的使用范围1’2. 举例说明电脑在以上领域的运用：What are computers used for? 3’设计意图：引出话题之后，让学生结合自身情况初步思考并谈论电脑的功能，为新课的学习做准备。

电脑与学生实际生活息息相关，学生有话可说、有感而发，乐于发言。

步骤三、While-reading 19’1．通过标题预测阅读文本的大意：1’T: Can you predict the main idea of 1a according to the title?S: Computers are very important in our lives.T: Yes.设计意图：训练学生通过标题预测文本大意的能力。

2．略读全文，找出各段的主题句，并列出文章的主体框架结构：4’T: Please scan 1a and underline the top sentence of each paragraph.Para.1. Since computers were invented in the USA in the 1950s, they have become very importantin many areas of work and leisure.Para. 2. Since the Internet came into being, people’s lives at home have been changed, too.Para.3. Computers have improved our lives, but they have brought problems, too.设计意图：让学生快速通读全文，整体感知文本、把握大意。

灵水中学2014春季第一次月考七年级英语试卷（测试内容：U4T3-U5T2 满分：100分）Name：________ Class：_______ No.：______ score：________ Ⅰ.单项选择。

（15分）( )1.— _____ is it now? —It’s half past seven.A. How timeB.What timeC.How often( )2.—How does the old man go to the park?—He sometimes _____ to the park _____ foot.A.go; onB.goes; onC.goes; by( )3.—Hi, Jane. What time do you get up _____ weekdays?—I usually get up _____ about six o’clock.A.in; atB.on; atC.at; at( )4.It’s 8 o’clock. My mother is reading a book. My sister and I _____.A.is doing my homeworkB.am doing my homeworkC.are doing our homework( )5.—Excuse me, Maria. May I borrow your pen?—Sure. Here you are. But you must return it _____ time.A.inB.atC.on( )6. I often go to Xiamen by _____ car.A. aB. theC./(不填）( )7.--- Happy birthday to you! --- _________!A. The same to youB. ThanksC. Me, too( )8.---What does Li Lei do in the evening on weekend（周末）?--- He often ______ TV with his parents.A. watchesB. looksC. sees( )9.— _____ do you go to the zoo with your brother? —Once a month.A. HowB.How oftenC.How old( )10. We have two English classes _______ Wednesday morning.A. inB. atC. on( )11.Look! Jim and Lucy ________ the classroom.A. is cleaningB. are cleaningC. cleans( )12.It’s good to walk _________ a short time after supper.A.forB.byC.with( )13.—How long can I keep the books? —_____A.Three.B.Three times a day.C.Three days.( )14.— _____ in your wallet?—Some money and some cards.A.WhatB.What’sC.What are( )15.--- I don’t have a pen. May I _______ yours?- 1 -- 2 ---- Of course! Here you are.A. borrowB. giveC. keepⅡ.情景交际。

RVN4126 3.59100-386-9100-386/T DEVICERVN41772-CD2-3.5MCS/MTSRVN41821-CD2-3.5XTS3000/SABER PORTABLE YES RKN4046KHVN9085 3.51-20 R NO HLN9359 PROG. STAND RVN4057 3.532 X 8 CODEPLUG NO3080385B23 & 5880385B30 MDVN4965 3.59100-WS/T CONFIG KITRVN4053 3.5ASTRO DIGITAL INTERFACE NO3080385B23RVN41842-CD RKN4046A (Portable) 2-3.5ASTRO PORTABLE /MOBILE YES3080369B73 or0180300B10 (Mobile) RVN41831-CD3080369B732-3.5ASTRO SPECTRA MOBILE YES(Low / Mid Power)0180300B10 (High Power) RVN4185CD ASTRO SPECTRA PLUS MOBILE NO MANY OPTIONS; SEESERVICE BRIEF#SB-MO-0101RVN4186CD ASTRO SPECTRA PLUS MANY OPTIONS;MOBILE/PORTABLE COMB SEE SERVICE BRIEF#SB-MO-0101RVN4154 3.5ASTROTAC 3000 COMPAR.3080385B23RVN5003 3.5ASTROTAC COMPARATORS NO3080399E31 Adpt.5880385B34RVN4083 3.5BSC II NO FKN5836ARVN4171 3.5C200RVN4029 3.5CENTRACOM SERIES II NO VARIOUS-SEE MANUAL6881121E49RVN4112 3.5COMMAND PLUS NORVN4149 3.5COMTEGRA YES3082056X02HVN6053CD CT250, 450, 450LS YES AAPMKN4004RVN4079 3.5DESKTRAC CONVENTIONAL YES3080070N01RVN4093 3.5DESKTRAC TRUNKED YES3080070N01RVN4091 3.5DGT 9000 DESKSET YES0180358A22RVN4114 3.5GLOBAL POSITIONING SYS.NO RKN4021AHVN8177 3.5GM/GR300/GR500/GR400M10/M120/130YES3080070N01RVN4159 3.5GP60 SERIES YES PMLN4074AHVN9128 3.5GP300 & GP350RVN4152 3.5GP350 AVSRVN4150 3.5GTX YES HKN9857 (Portable)3080070N01(Mobile) HVN9025CD HT CDM/MTX/EX SERIES YES AARKN4083/AARKN4081RiblessAARKN4075RIBLESS NON-USA RKN4074RVN4098H 3.5HT1000/JT1000-VISAR YES3080371E46(VISAR CONV)RVN4151 3.5HT1000 AVSRVN4098 3.5HT1000/ VISAR CONV’L.YES RKN4035B (HT1000) HVN9084 3.5i750YES HLN-9102ARVN4156 3.5LCS/LTS 2000YES HKN9857(Portable)3080070N01(Mobile) RVN4087 3.5LORAN C LOC. RECV’R.NO RKN4021ARVN4135 3.5M100/M200,M110,M400,R100 includesHVN9173,9177,9646,9774YES3080070N01RVN4023 3.5MARATRAC YES3080070N01RVN4019 3.5MAXTRAC CONVENTIONAL YES3080070N01RVN4139 3.5MAXTRAC LS YES3080070N01RVN4043 3.5MAXTRAC TRK DUPLEX YES3080070N01RVN4178CD MC SERIES, MC2000/2500DDN6124AW/DB25 CONNECTORDDN6367AW/DB9 CONNECTOR RVN41751-CD Rib to MIC connector 1-3.5MCS2000 RKN4062BRVN41131-3.5MCS2000RVN4011 3.5MCX1000YES3000056M01RVN4063 3.5MCX1000 MARINE YES3000056M01RVN4117 3.5MDC/RDLAP DEVICESRVN4105 3.5MOBILE PROG. TOOLRVN4119 3.5MOBITEX DEVICESRVN4128 3.5MPT1327-1200 SERIES YES SEE MANUALRVN4025 3.5MSF5000/PURC/ANALOG YES0180355A30RVN4077 3.5MSF5000/10000FLD YES0180355A30RVN4017K 3.5MT 1000YES RTK4205CRVN4148 3.5MTR 2000YES3082056X02RVN4140 3.5MTRI 2000NORVN41761-CD MTS2000, MT2000*, MTX8000, MTX90001-3.5*programmed by DOS which is included in the RVN4176RVN4131 3.5MTVA CODE PLUG FIXRVN4142 3.5MTVA DOCTOR YES3080070N01RVN4131 3.5MTVA3.EXERVN4013 3.5MTX800 & MTX800S YES RTK4205CRVN4097 1-CD MTX8000/MTX9000,MTS2000,MT2000*,* programmed by DOS which is included in the RVN4176HVN9067CD MTX850/MTX8250MTX950,MTX925RVN4138 3.5MTX-LS YES RKN4035DRVN4035 3.5MX 1000YES RTK4203CRVN4073 3.5MX 800YES RKN4006BHVN9395 P100, P200 LB, P50+, P210, P500, PR3000RVN4134 3.5P100 (HVN9175)P200 LB (HVN9794)P50+ (HVN9395)P210 (HVN9763)P500 (HVN9941)PR3000 (HVN9586)YES RTK4205HVN9852 3.5P110YES HKN9755A/REX1143 HVN9262 3.5P200 UHF/VHF YES RTK4205RVN4129 3.5PDT220YVN4051 3.5PORTABLE REPEATER Portable rptr.P1820/P1821AXRVN4061C 3.5PP 1000/500NO3080385B23 & 5880385B30 RVN5002 3.5QUANTAR/QUANTRO NO3O80369E31RVN4135 3.5R100 (HVN9177)M100/M200/M110/M400YES0180358A52RVN4146 3.5RPM500/660RVN4002 3.5SABER YES RTK4203CRVN4131 3.5SETTLET.EXEHVN9007 3.5SM50 & SM120YESRVN4039 3.5SMART STATUS YES FKN5825AHVN9054 3.5SOFTWARE R03.2 P1225YES3080070N01HVN9001 3.5SOFTWARE R05.00.00 1225LS YES HLN9359AHVN9012 3.5SP50RVN4001N 3.5SPECTRA YES3080369B73 (STANDARD)0180300B10 (HIGH POWER) RVN4099 3.5SPECTRA RAILROAD YES3080369B73RVN4110 3.5STATION ACCESS MODULE NO3080369E31RVN4089A 3.5STX TRANSIT YES0180357A54RVN4051 3.5SYSTEMS SABER YES RTK4203BRVN4075 3.5T5600/T5620 SERIES NO3080385B23HVN9060CD TC3000, TS3000, TR3000RVN4123 3.5VISAR PRIVACY PLUS YES3080371E46FVN4333 3.5VRM 100 TOOLBOX FKN4486A CABLE &ADAPTORRVN4133 3.5VRM 500/600/650/850NORVN4181CD XTS 2500/5000 PORTABLES RKN4105A/RKN4106A RVN41002- 3.5XTS3000 ASTRO PORTABLE/MOBILERVN4170 3.5XTS3500YES RKN4035DRIB SET UPRLN4008E RADIO INTERFACE BOX (RIB)0180357A57RIB AC POWER PACK 120V0180358A56RIB AC POWER PACK 220V3080369B71IBM TO RIB CABLE (25 PIN) (USE WITH XT & PS2)3080369B72IBM TO RIB CABLE (9 PIN)RLN443825 PIN (F) TO 9 PIN (M) ADAPTOR (USE W/3080369B72 FOR AT APPLICATION) 5880385B308 PIN MODULAR TO 25 PIN ”D” ADAPTOR (FOR T5600 ONLY)0180359A29DUPLEX ADAPTOR (MOSTAR/TRAXAR TRNK’D ONLY)Item Disk Radio RIB Cable Number Size Product Required Number Item Disk Radio RIB Cable Number Size Product Required NumberUtilizing your personal computer, Radio Service Software (RSS)/Customer Programming Software (CPS)/CustomerConfiguration Software (CCS) enables you to add or reprogram features/parameters as your requirements change. RSS/CPS/CCS is compatible with IBM XT, AT, PS/2 models 30, 50, 60 and 80.Requires 640K RAM. DOS 3.1 or later. Consult the RSS users guide for the computer configuration and DOS requirements. (ForHT1000, MT/MTS2000, MTX838/8000/9000, Visar and some newer products —IBM model 386, 4 MEG RAM and DOS 5.0 or higher are recommended.) A Radio Interface Box (RIB) may be required as well as the appropriate cables. The RIB and cables must be ordered separately.Licensing:A license is required before a software (RVN) order is placed. The software license is site specific (customer number and ultimate destination tag). All sites/locations must purchase their own software.Be sure to place subsequent orders using the original customer number and ship-to-tag or other licensed sites; ordering software without a licensed customer number and ultimate tag may result in unnecessary delays. To obtain a no charge license agreement kit, order RPX4719. To place an order in the U.S. call 1-800-422-4210. Outside the U.S., FAX 847-576-3023.Subscription Program:The purchase of Radio ServiceSoftware/Customer Programming/Customer ConfigurationSoftware (RVN & HVN kits) entitles the buyer/subscriber to three years of free upgrades. At the end of these three years, the sub-scriber must purchase the same Radio Service Software kit to receive an additional three years of free upgrades. If the sub-scriber does not elect to purchase the same Radio Service Software kit, no upgrades will be sent. Annually a subscription status report is mailed to inform subscribers of the RSS/CPS/CCS items on our database and their expiration dates.Notes:1)A subscription service is offered on “RVN”-Radio Service Software/Customer Programming/Customer Configuration Software kits only.2)“RVN” software must only be procured through Radio Products and Services Division (RPSD). Software not procured through the RPSD will not be recorded on the subscription database; upgrades will not be mailed.3)Upgrades are mailed to the original buyer (customer number & ultimate tag).4)SP software is available through the radio product groups.The Motorola General Radio Service Software Agreement is now available on Motorola Online. If you need assistance please feel free to submit a “Contact Us” or call 800-422-4210.SMART RIB SET UPRLN1015D SMART RIB0180302E27 AC POWER PACK 120V 2580373E86 AC POWER PACK 220V3080390B49SMARTRIB CABLE (9 PIN (F) TO 9 PIN (M) (USE WITH AT)3080390B48SMARTRIB CABLE (25 PIN (F) TO 9 PIN (M) (USE WITH XT)RLN4488ASMART RIB BATTERY PACKWIRELESS DATA GROUP PRODUTS SOFTWARERVN4126 3.59100-386/9100T DEVICES MDVN4965 3.59100-WS/T CONFIG’TN RVN41173.5MDC/RDLAP DEVICESPAGING PRODUCTS MANUALS6881011B54 3.5ADVISOR6881029B90 3.5ADVISOR ELITE 6881023B20 3.5ADVISOR GOLD 6881020B35 3.5ADVISOR PRO FLX 6881032B30 3.5BR8506881032B30 3.5LS3506881032B30 3.5LS5506881032B30 3.5LS7506881033B10 3.5LS9506881035B20 3.5MINITOR III8262947A15 3.5PAGEWRITER 20008262947A15 3.5PAGEWRITER 2000X 6881028B10 3.5TALKABOUT T3406881029B35 3.5TIMEPORT P7308262947A15 3.5TIMEPORT P930NLN3548BUNIVERSAL INTERFACE KITItem Disk Radio NumberSize Product。

Reference Board User’s ManualHigh Voltage Synchronous Buck Regulators: 3 V to 24 VSiC431 (24 A), SiC437 (12 A), SiC438 (8 A)DESCRIPTIONThe SiC431/437/438 is family of synchronous buck regulators with integrated high side and low side power MOSFETs. Its power stage is capable of supplying up to 24 A continuous current at 1 MHz switching frequency. This regulator produces an adjustable output voltage down to 0.6 V from 3 V to 24 V input rail to accommodate a variety of applications, including computing, consumer electronics,telecom, and industrial. SiC43x series employs a constant ON time control architecture that supports ultrafast transient response with minimum output capacitance and tight ripple regulation at very light load. The device is internally compensated and no external ESR network is required for loop stability purposes. The device also incorporates a power saving scheme that significantly increases light load efficiency. The regulator integrates a full protection feature set, including output over voltage protection (OVP), cycle by cycle over current protection (OCP) short circuit protection (SCP) and thermal shutdown (OTP). It also has UVLO and a user programmable soft start. The SiC43x series is available in lead (Pb)-free power enhanced MLP44-24L package in 4 mm x 4 mm dimension.FEATURES•Versatile- Single supply operation from 3 V to 24 V input voltage -Adjustable output voltage down to 0.6 V - Scalable solution8 A (SiC438), 12 A (SiC437), 24 A (SiC431)- Output voltage tracking and sequencing with pre-bias start up- ± 1 % output voltage accuracy at -40 °C to +125 °C •Highly efficient - 97 % peak efficiency- 1 μA supply current at shutdown - 50 μA operating current not switching •Highly configurable-Four programmable switching frequencies available:300 kHz, 500 kHz, 750 kHz, and 1 MHz - Adjustable soft start and adjustable current limit - 3 modes of operation: forced continuous conduction,power save, or ultrasonic •Robust and reliable- Cycle-by-cycle current limit - Output overvoltage protection- Output undervoltage / short circuit protection with auto retry - Power good flag and over temperature protection •Design tools- Supported by Vishay PowerCAD Online Design Simulation (/power-ics/powercad-list/)- Design support kit (/ppg?74589)•Material categorization: for definitions of compliance please see /doc?99912APPLICATIONS•Industrial and automation •Home automation•Industrial and server computing•Networking, telecom, and base station power supplies •Wall transformer regulation •Robotics•High end hobby electronics: remote control cars, planes,and drones•Battery management systems •Power tools•Vending, ATM, and slot machinesORDERING TABLEPART NUMBER MODEOUTPUT CURRENTSiC431AEVB-A Ultrasonic24 A SiC431BEVB-APower safe 24 ASiC437AEVB-BUltrasonic 12 A SiC437BEVB-BPower safe12 A SiC438AEVB-B Ultrasonic 8 A SiC438BEVB-BPower safe8 ASPECIFICATIONSThis reference board allows the end user to evaluate the SiC43x series microBUCK® regulators for their features and functionalities. The user may also change the operating range may be modified by making changes to the jumper connections. See section “Selection Jumpers” below in the document.CONNECTION AND SIGNAL / TEST POINTS Power Terminals (J10)- +V IN (pin 1), V IN GND (pin 2)Connect to a voltage source to this pin. The minimum input voltage will be 3 V. For input voltages (V IN) below 4.5 V an external V DD and V DRD is required.- +V OUT (pins 5 and 6), V OUT GND (pins 3 and 4)Fig. 1 - SiC43x EVBSELECTION JUMPERSMode SelectJ1, to J8 and J15: there are 4 jumpers which allow the user to select one of four modes of operation.J1 to J4 to select switching frequency: 300 kHz to 1 MHz. Short pins 1 and 2 for PSM mode, short pins 2 and 3 for FCCM modeJ5 to J8 to select over current trip (I LIM). Short pins 1 and 3 to select 6 mS soft start, short pins 2 and 3 to select 6 mS soft startJ15 to select output voltage: 1 V, 3.3 V, 5 V and 12 V EnableJ9: this is the jumper that enables/disables the part.With J9 left open, the device is enabled, via R9 to V IN+. To disable the part, short J9.SIGNALS AND TEST LEADSInput Voltage SenseV IN_SENSE (TP11), GND IN_SENSE (TP12): this allows the user to measure the voltage directly at the input of the regulator bypassing any losses generated by connections to the board. These test points can also be as a remote sense port of a power source with remote sense capability.Output Voltage SenseV OUT_SENSE (TP13), GND OUT_SENSE (TP14): this allows the user to measure the output voltage directly at the sense point of the regulator bypassing any losses generated by connections to the board. These test points can also be as a remote sense port of an external load with remote sense capability.Power Good IndicatorPGD (J17): is an open drain output and is pulled up with a 100 kΩ resistor, R12, to V DD1 (≈ 5 V). When FB or V OUT are within -10 % to +20 % of the set voltage this pin will go HI to indicate the output is okay. To prevent false triggering during transient events, the P GOOD has a 25 μS blanking time.Power Up ProcedureBefore turning on the reference board, the user needs to select one of the three modes by shorting one jumper (see section on mode selection). It is recommend to disable theSiC431 before making any changes to the jumpers.SCHEMATIC FOR SiC431SCHEMATIC FOR SiC437, SiC438SCHEMATIC, DESIGN, BILL OF MATERIALS, AND GERBER FILES FOR PCB FABRICATIONThese files are as follows:•“*.DSN” for schematic design file•“*.DBK” for data backup file for Orcad•“.opj” Orcad project file. Any schematic work should always be opened with the opj file. Use of a DSN file for this purpose is not advised•“*.xlsx” is the bill of materials (BOM) derived from the schematic•“*.PDF” is the PDF version of the schematic from the “*.DSN” fileThe Fab files for the high power and low power are located in a separate sub directory and contain gerbers,.brd files (Allegro), etc. for PCB fabrication.PCB LAYOUT FOR SiC431Fig. 2 - Top LayerFig. 3 - Inner Layer 2Fig. 4 - Inner Layer 3Fig. 5 - Inner Layer 4 Fig. 6 - Inner Layer 5Fig. 7 - Bottom LayerPCB LAYOUT FOR SiC437, SiC438Fig. 8 - Top LayerFig. 9 - Inner Layer 2Fig. 10 - Inner Layer 3Fig. 11 - Inner Layer 4 Fig. 12 - Inner Layer 5Fig. 13 - Bottom LayerBILL OF MATERIAL REPORT, SiC431SYM_NAME COMP_VALUE REFDES PART NUMBER 04020.1 μF C1, C5, C6GRM155R71H104ME14D 121022 μF C2, C3, C4CL32B226KAJNFNE 0603 1 μF C7GCM188R71E105KA64D POSCAP100 μF C8, C920TQC100MYF0603DNP C10121022 μF C11, C12, C13, C14CL32B226KAJNFNEDNP C15, C16, C1706030.1 μF C18GCM188R71E104KA57D CAP10P2x5220 μF C20UBT1E221M SiC431SiC431IC1MINIJUMPER3CON3J1, J2, J3, J4, J5, J6, J7, J8, J9M50-3530342 CON6CON6J10277-1581-NDTP30VIN+s J1136-5000-NDTP30VIN-S J1236-5001-NDTP30VO+S J1336-5000-NDTP30VO-S J1436-5001-ND MINIJUMPER2x4CON8A J15S9015E-04-ND TP30AGND J1636-5001-NDTP30PGOOD J1736-5002-NDDNP L1IHLP 1 μH L2ZPWM-101014MA-1R0K 040251k R1, R5CRCW040251K0FKED 0402100k R2, R6, R9, R12CRCW0402100KFKED 0402200k R3, R7CRCW0402200KFKED 0402510k R4, R8CRCW0402510KFKED 04020R10CRCW04020000Z0ED 060310k R11TNPW060310K0BXEN 0603 6.65k R14TNPW06036K65BEEA 060345.3k R15TNPW060345K3BEEA 060373.2k R16TNPW060373K2BEEA 0603191k R17TNPW0603191KBEEA 1206DNP R18JUMPER OFF BOARD x3NPB02SVFN-RCBILL OF MATERIAL REPORT, SiC437, SiC438SYM_NAME COMP_VALUE REFDES PART NUMBER 04020.1 μF C1, C5, C6GRM155R71H104ME14D121022 μF C2, C3, C4CL32B226KAJNFNE0603 1 μF C7GCM188R71E105KA64DPOSCAP100 μF C8, C920TQC100MYF0603DNP C10121022 μF C13, C14CL32B226KAJNFNEDNP C11, C12, C15, C16, C1706030.1 μF C18GCM188R71E104KA57DSiC437/8SiC437/8IC1MINIJUMPER3CON3J1, J2, J3, J4, J5, J6, J7, J8,J 9M50-3530342 CON6CON6J10277-1581-NDTP30VIN+s J1136-5000-NDTP30VIN-S J1236-5001-NDTP30VO+S J1336-5000-NDTP30VO-S J1436-5001-ND MINIJUMPER2x4CON8A J15S9015E-04-ND TP30AGND J1636-5001-NDTP30PGOOD J1736-5002-NDDNP L1DNP L1IHLP 2.2 μH L2 (for SiC437x)IHLP4040DZER2R2M01IHLP 3.3 μH L2 (for SiC438x)IHLP4040DZER3R3M5A040251k R1, R5CRCW040251K0FKED0402100k R2, R6, R9, R12CRCW0402100KFKED0402200k R3, R7CRCW0402200KFKED0402510k R4, R8CRCW0402510KFKED04020R10CRCW04020000Z0ED060310k R11TNPW060310K0BXEN0603 6.65k R14TNPW06036K65BEEA060345.3k R15TNPW060345K3BEEA060373.2k R16TNPW060373K2BEEA0603191k R17TNPW0603191KBEEA1206DNP R18JUMPER OFF BOARD x3NPB02SVFN-RCVishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several q ualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package / tape drawings, part marking, and reliability data, see /ppg?76801.。

八年级英语上册第四单元第三话题教学案仁爱版重点活动是1a和2a教学目标：1.学习反意疑问句2.谈论北京的古城墙，增强学生保护文化遗产的意识教学内容：1.It’s a nice day, isn’t it? 译：______________________________这是为反意疑问句，反意疑问句是疑问句的一种,常见于我们的口语及日常对话中,主要是由“陈述句+附加疑问”这两部分构成,如前一部分为肯定形式,后一部分通常用否定形式,前一部分为否定形式，后一部分通常用肯定形式。

注意前后人称、数、时态的一致。

例如：You are a student, aren’t you? She couldn’t swim, could she?祈使句后一般加上will you或won't you构成反意疑问句，用will you 多表示“请求”，用won't you 多表示提醒对方注意。

例如：Look at the blackboard, will you/ won't you? Let引导的祈使句有两种情况：(1)Let's...,后的反意疑问句用 shall we例如：Let's go home, shall we ? 回家吧，好吗？(2)Let us/me...后的反意疑问句用will you例如：Let me have a try, will you ?2.They are more than 500 years old. 译： ___________________________more than 超过，相当于over. 例如：The old is more than/over 100 years old.3. There used to be lots of old city walls in Beijing.There used to be 某地曾经有某物，这是There be句型和used to短语合用的形式。

XX年九年级英语上册第四单元知识点（仁爱版）本资料为woRD文档，请点击下载地址下载全文下载地址U4T1SAbeallowedtodosth.被允许做某事,allowsb.todosth.允许某人做某事；allowdoingsth.允许做某事。

e.g.Sheallowedmetogofishing.她允许我去钓鱼。

wedon’tallowsmokinginthereadingroom.我们不允许在阅览室吸烟。

2toomuch既是形容词短语，也是副词短语，所以它既可修饰名词也可修饰动词。

e.g.toomuchwater；eattoomuch太多的水吃得太多.另外注意toomuch后接的是不可数名词；toomany+可数名词复数；muchtoo常用在形容词或副词之前修饰形容词或副词。

e.g.muchtoolong太长，muchtoofast太快3showv.给……看。

showsth.tosb.=showsb.sth.把某物给某人看。

e.g.canyoushowyournewwatchtome?=canyoushowmeyournewwatch?你能把新手表给我看看吗？showsb.around...带领某人参观。

e.g.welcometomycity.I’llshowyouaroundsomeplacesofinterest.欢迎来我市，我将带你参观一些名胜古迹。

shown.展览、展示,onshow展出。

e.g.ThereisaTVplayonshowonccTV-1.在中央一台有一部电视剧在播放。

4bemadeof/from由……制成。

bemadeof；bemadefrom。

e.g.Thedeskismadeofwood.桌子是由木材制成的。

Paperismadefromwood.纸是由木材制成的。

bemadein在……制造。

e.g.ThewatchismadeinShanghai.手表是在上海制造的。

日本东芝光耦深圳市美特光有限公司为日本东芝品牌光耦代理商。

TOSHIBA光耦中文名：东芝光耦。

东芝在日本东京都的总部大楼东芝（TOSHIBA），是日本最大的半导体制造商，亦是第二大综合电机制造商，隶属于三井集团旗下。

我司供应东芝全系列光耦合器，东芝光耦从功能分有逻辑输出，可控硅输出，光电二极管输出，固态继电器，高速输出，MOSFET输出，晶体管输出等。

高速光耦TLP115A描述：东芝光耦合器TLP115A是一个小外形耦合器，适合表面贴装。

TLP115A由一个高输出功率GAAℓAs发光二极管，光耦合到一个集成的高增益，高速光屏蔽检测器的输出是一个集电极开路肖特基钳位晶体管。

其中分capacirively加上常见的噪音到地面，提供1000V/μs的保证瞬变抗扰度规范。

特点：输入电流阈值：IF = 5mA (max.)切换速度：10MBD（典型值）共模瞬变抗扰度：± 1000V / μs (min.)最佳性能温度。

：0～70°C隔离电压：2500Vrms (min.)UL认证：UL1577, file no. E67349运用：高速，长距离隔离线路接收器微处理器系统接口数字隔离的A / D，D / A转换电脑外设接口接地回路消除参数：东芝高速光耦型号有：TLP550(F), TLP116A(E), 6N137F，TLP2166A(F), 6N136F，TLP2630(F),，TLP118(TPL,E),，TLP715(F),，TLP105(F), TLP108(F),，TLP557(F), 6N139(F), TLP719(TP,F), TLP2200F，6N138F，TLP559(IGM,F), TLP2309(E), TLP2631(F),TLP2098(F), TLP118(E), TLP558(F), TLP2601(F), TLP117(F), TLP718(F), TLP559(F), TLP2530(F), TLP2531(F), TLP2368(E), TLP512(F), TLP2105(F), TLP116(F), TLP2366(E), TLP115A(F), TLP716(F), TLP716(TP,F), TLP719(F), TLP714(F), TLP2118E(F), TLP2108(F),TLP2418(F), TLP2160(F), TLP2631TP1F TLP2168(F), TLP2355(E，TLP2362(E),TLP2200(TP1,F), 6N138(TP1,F), TLP2601(TP1,F), TLP2303(E TLP2303(TPR,ETLP109(IGM,E), TLP2468(F), TLP109(E), TLP2408(F), TLP104(E), TLP2409(F),TLP2358(E), TLP2301(TPL,E，TLP2303(TPL,E TLP555(F), TLP754(F), TLP2631(LF5,F), TLP2404(F), TLP2405(F), TLP2301(E，TLP2116(F), TLP2403(F), 6N137(TP1F),TLP116A(E，6N136(TP1F), TLP2630(TP1F), TLP2601(LF1,F), TLP104(TPR,E),TLP2362(TPR,E，TLP2531(TP1F), TLP2358(TPL,E), TLP2530(TP1F), TLP2116(TP,F), TLP2468(TP,F), 6N135(F), TLP559(IGM-TP5F), TLP2368(TPR,E，TLP2355(TPL,E，TLP751(F), TLP109(TPR,E), TLP2098(TPL,F), TLP2166A(TP,F), TLP118(TPR,E),TLP117(TPR,F), TLP2358(TPR,E), TLP2309(TPL,E), 6N139(TP1F), TLP109(IGM-TPR,E), TLP117(TPR,F),。

最新初中英语精品资料设计1 Section CⅠ. Material analysis本课是九年级第四单元第三话题的第三课时。

主活动是1a 和2。

1a 介绍了电脑在各行各业中的作用，也提醒了学生要合理地利用电脑和网络。

在这个信息爆炸的时代，学生很容易迷失方向，辨别信息的真假尤其重要。

1b 既可以通过提纲式结构来巩固1a 的内容，也可以让学生学习在写作中运用这种方法来草拟提纲。

2这个写作任务，可以让学生充分发挥想象，如果没有了电脑，生活会变成什么样子。

这从另一个角度让学生感受电脑对我们生活的重大影响。

为了能让学生有足够的时间来完成这个任务，建议留作家庭作业。

Ⅱ.Teaching aims 1. Knowledge aims ：掌握本课的重点词汇和短语，继续学习定语从句。

2. Skill aims:能够通过1a 的pre-reading 任务来预测1a 的内容。

能够借助1b 的提纲复述1a 的内容，并把这种提纲式的结构运用到写作中。

能够快速找到段落的中心句、辨别论证句。

3. Emotional aims: (optional)电脑和网络是个双刃剑，在利用它来服务于生活、学习的同时，不能沉溺于游戏游戏，并且要自觉远离不良信息的诱惑。

Ⅲ. The key points and difficult points 1. Key points:Words and phrases: doubt, tiny, inside, brain, cancel, connect, no doubt, normally, for instance, besides, properly, be useful in,with the help of, for example, keep sth/sb. doing, place orders, thanks to, come into being, instead of doing sth.Sentences: There is no doubt that computers are very useful in technology and business.For example, tiny computers which are inside patients’ bodies can keep their hearts beating normally.In factories, robots are controlled by computers that are like human brains.Grammar: Attributive clause2. Difficult points：In space, computers have been used to control the speed and direction of a spaceship.Besides, not everything we read on the Internet is true or good for us.Computers help us at work and at home, but they must be used properly.Ⅳ. Learning strategies通过标志词，如：for instance, for example, besides来找到属于举例子的句子。