MAX641中文资料
TMS320DM642中文资料
TMS320DM642中文资料1.2 概述TMS320C64x DSP芯片（包括TMS320DM642）是在TMS320C6000 DSP平台上的高性能定点DSP。
TMS320DM642（DM642）是基于有TI开发的第二代高性能，先进VelociTI技术的VLIW结构（VelociTI1.2），从而使得这些DSP芯片成为数字多媒体的极好的选择。
DM642在主频720MHz下处理速度达到5760MIPS，并且给高性能DSP规划提供了廉价的解决方案。
DM642操作灵活的高速处理器和用数字表达容量的阵列处理器。
C64x DSP核具有64个32位字长的通用寄存器和8个独立的功能单元——两个结果为32位的乘法器和6个ALUs——是VelociTI1.2的升级版。
VelociTI1.2升级版在8个功能单元里包括新的指令，可以在视频和图像应用方面提高性能，并能对VelociTI结构进行扩充。
DM642每周期能够提供4个16位MACs，每秒可提供2880百万个MACs，或者8个8位MACs，每秒5760MMACs。
DM642具有特殊应用的硬件结构，片上存储器和与其它的C6000系列DSP平台相似的额外的片上外围设备。
DM642使用两级缓存，有一个强大的多变的外围设置。
一级程序缓存L1P是一个128Kbit的直接映射缓存，另一级数据缓存L1D是一个128Kbit双路结合设置缓存。
L2存储器能被配置成映射存储器，高速缓存或者两者结合。
外围设置包括：3个可配置的视频端口；1个10/100Mb/s的以太网控制器（EMAC）；1个管理数据输入输出（MDIO）；1个内插VCXO控制接口；1个McASP0；1个I2C总线；2个McBSPs；3个32位通用定时器；1个用户配置的16位或32位主机接口（HPI16/HPI32）；1个PCI；1个16引脚的通用输入输出口（GP0），具有可编程中断/事件产生模式；1个64位IMIFA，可以与同步和异步存储器和外围设备相连。
MAX6414UK41+中文资料
General DescriptionThe MAX6412–MAX6420 low-power microprocessor supervisor circuits monitor system voltages from 1.6V to 5V. These devices are designed to assert a reset signal whenever the V CC supply voltage or RESET IN falls below its reset threshold or the manual reset input is asserted.The reset output remains asserted for the reset timeout period after V CC and RESET IN rise above the reset threshold and the manual reset input is deasserted. The reset timeout is externally set by a capacitor to provide more flexibility.The MAX6412/MAX6413/MAX6414 feature fixed thresholds from 1.575V to 5V in approximately 100mV increments and a manual reset input. The MAX6415/MAX6416/MAX6417are offered with an adjustable reset input that can monitor voltages down to 1.26V and the MAX6418/MAX6419/MAX6420 are offered with one fixed input and one adjustable input to monitor dual-voltage systems.The MAX6412/MAX6415/MAX6418 have an active-low,push-pull reset output. The MAX6413/MAX6416/MAX6419 have an active-high, push-pull reset output and the MAX6414/MAX6417/MAX6420 have an active-low, open-drain reset output. All of these devices are offered in a SOT23-5 package and are fully specified from -40°C to +125°C.ApplicationsAutomotive Medical Equipment Intelligent Instruments Portable EquipmentBattery-Powered Computers/Controllers Embedded Controllers Critical µP Monitoring Set-Top Boxes ComputersFeatures♦Monitor System Voltages from 1.6V to 5V ♦Capacitor-Adjustable Reset Timeout Period ♦Manual Reset Input (MAX6412/MAX6413/MAX6414)♦Adjustable Reset Input Option (MAX6415–MAX6420)♦Dual-Voltage Monitoring(MAX6418/MAX6419/MAX6420)♦Low Quiescent Current (1.7µA, typ)♦3 RESET Output OptionsPush-Pull RESET Push-Pull RESET Open-Drain RESET♦Guaranteed Reset Valid to V CC = 1V ♦Power-Supply Transient Immunity ♦Small SOT23-5 PackagesMAX6412–MAX6420Low-Power, Single/Dual-Voltage µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay________________________________________________________________Maxim Integrated Products1Ordering InformationPin Configuration19-2336; Rev 2; 12/05For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Typical Operating Circuit appears at end of data sheet.Selector Guide appears at end of data sheet.Note: The MAX6412/MAX6413/MAX6414 and MAX6418/MAX6419/MAX6420 are available with factory-set V CC reset thresholds from 1.575V to 5.0V in approximately 0.1V incre-ments. Insert the desired nominal reset threshold suffix (from Table 1) into the blanks following the letters UK. There are 33standard versions with a required order increment of 2500pieces. Sample stock is generally held on standard versions only (see Standard Versions Table). Required order increment is 10,000 pieces for nonstandard versions. Contact factory for availability. All devices are available in tape-and-reel only. Devices are available in both leaded and lead-free packaging.Specify lead-free by replacing “-T” with “+T” when ordering.M A X 6412–M A X 6420with Capacitor-Adjustable Reset Timeout Delay2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = 1V to 5.5V, T A = T MIN to T MAX , unless otherwise specified. Typical values are at V CC = 5V and T A = +25°C.) (Note 1)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.All Voltages Referenced to GNDV CC ........................................................................-0.3V to +6.0V SRT, MR , RESET IN....................................-0.3V to (V CC + 0.3V)RESET, RESET (Push-Pull).........................-0.3V to (V CC + 0.3V)RESET (Open-Drain).............................................-0.3V to +6.0V Input Current (All Pins).....................................................±20mA Output Current (RESET , RESET)......................................±20mAContinuous Power Dissipation (T A = +70°C)5-Pin SOT23-5 (derate 7.1mW/°C above +70°C)........571mW Operating Temperature Range .........................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX6412–MAX6420with Capacitor-Adjustable Reset Timeout Delay_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS (continued)(V CC = 1V to 5.5V, T A = T MIN to T MAX , unless otherwise specified. Typical values are at V CC = 5V and T A = +25°C.) (Note 1)Typical Operating Characteristics(V CC = 5V, C SRT = 1500pF, T A = +25°C, unless otherwise noted.)432100312456SUPPLY CURRENT vs.SUPPLY VOLTAGESUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (µA )01.00.52.01.53.02.53.5-5025-255075100125SUPPLY CURRENT vs.TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (µA )0.1110010100010,0000.0010.10.011101001000RESET TIMEOUT PERIOD vs. C SRTM A X 6412-20 t o c 03C SRT (nF)R E S E T T I M E O U T P E R I O D (m s )M A X 6412–M A X 6420with Capacitor-Adjustable Reset Timeout Delay4_______________________________________________________________________________________4.054.104.204.154.254.30-50-25255075100125RESET TIMEOUT PERIOD vs. TEMPERATURETEMPERATURE (°C)R E S E T T I M E O U T P E R I O D (m s )RESET TIMEOUT PERIOD vs. TEMPERATURE200250350300500550450400600R E S E T T I M E O U T P E R I O D (µs )-5025-255075100125TEMPERATURE (°C)1.2501.2601.2551.2701.2651.2751.280-502550-2575100125RESET IN THRESHOLD VOLTAGEvs. TEMPERATUREM A X 6412-20 t o c 06TEMPERATURE (°C)R E S E T I N T H R E S H O L D V O L T A G E (V)05025100751501251754002006008001000MAXIMUM TRANSIENT DURATION vs. RESET THRESHOLD OVERDRIVERESET THRESHOLD OVERDRIVE (mV)T R A N S I E N T D U R A T I O N (µs )Typical Operating Characteristics (continued)(V CC = 5V, C SRT = 1500pF, T A = +25°C, unless otherwise noted.)Detailed DescriptionThe MAX6412–MAX6420 low-power microprocessor (µP) supervisory circuits provide maximum adjustability for supply-voltage monitoring and reset functionality. In addition, the MAX6412–MAX6420 reset timeout period is adjustable using an external capacitor.The MAX6412/MAX6413/MAX6414 have factory-trimmed reset threshold voltages in approximately 100mV increments from 1.575V to 5.0V with a manual reset input. The MAX6415/MAX6416/MAX6417 contain a reset threshold that can be adjusted to any voltage above 1.26V using external resistors. The MAX6418/MAX6419/MAX6420 offer both a factory-trimmed reset threshold and an adjustable reset threshold input for dual-voltage monitoring.A reset signal is asserted when V CC and/or RESET IN falls below the preset values or when MR is asserted.The reset remains asserted for an externally pro-grammed interval after V CC and/or RESET IN has risen above the reset threshold or MR is deasserted.Reset OutputThe reset output is typically connected to the reset input of a µP. A µP’s reset input starts or restarts the µPin a known state. The MAX6412–MAX6420 µP supervi-sory circuits provide the reset logic to prevent code-execution errors during power-up, power-down, and brownout conditions (see Typical Operating Circuit ). F or the MAX6413, MAX6416, and MAX6419, RESET changes from low to high whenever V CC or RESET IN drops below the reset threshold voltages. Once RESET IN and V CC exceed their respective reset threshold volt-age(s), RESET remains high for the reset timeout period,then goes low.On power-up, once V CC reaches 1V, RESET is guaran-teed to be a logic high. For applications requiring valid reset logic when V CC is less than 1V, see the section Ensuring a Valid RESET/RESET Output Down to V CC = 0.The active-low RESET output of the remaining supervi-sors is the inverse of the MAX6413, MAX6416, and MAX6419 active-high RESET output and is guaranteed valid for V CC ≥1V.Reset ThresholdThe MAX6415–MAX6420 monitor the voltage on RESET IN with an external resistor voltage-divider (F igure 1).MAX6412–MAX6420with Capacitor-Adjustable Reset Timeout Delay_______________________________________________________________________________________5Pin DescriptionM A X 6412–M A X 6420Use the following formula to calculate the externally monitored voltage (V MON_TH ):V MON_TH = V RST ✕(R1 + R2)/R2where V MON_TH is the desired reset threshold voltage and V RST is the reset input threshold (1.26V). Resistors R1 and R2 can have very high values to minimize cur-rent consumption due to low leakage currents. Set R2to some conveniently high value (1M Ω, for example)and calculate R1 based on the desired monitored volt-age, using the following formula:R1 = R2 x (V MON_TH /V RST - 1) (Ω)Manual Reset Input(MAX6412/MAX6413/MAX6414)Many µP based products require manual reset capabil-ity, allowing the operator, a technician, or external logic circuitry to initiate a reset. A logic low on MR asserts reset. Reset remains asserted while MR is low and for the reset timeout period after MR returns high.The MR has an internal 20k Ωpullup resistor so it can be left open if not used. Connect a normally open momentary switch from MR to ground to create a man-ual reset function (external debounce circuitry is not required for long reset timeout periods).A manual reset option can easily be implemented with the MAX6415–MAX6420 by connecting a normally open momentary switch in parallel with R2 (Figure 2). When the switch is closed, the voltage on RESET IN goes to zero,initiating a reset. Similar to the MAX6412/MAX6413/MAX6414 manual reset, reset remains asserted while the switch is closed and for the reset timeout period after the switch is opened.Monitoring Voltages Other than V CC(MAX6415/MAX6416/MAX6417)The MAX6415/MAX6416/MAX6417 contain an adjustable reset threshold input. These devices can be used to monitor voltages other than V CC . Calculate V MON_TH as shown in the Reset Threshold section. (See Figure 3.)with Capacitor-Adjustable Reset Timeout Delay6_______________________________________________________________________________________Figure 1. Calculating the Monitored Threshold Voltage (V MON_TH )MAX6415–MAX6420Figure 3. Monitoring External VoltagesDual-Voltage Monitoring(MAX6418/MAX6419/MAX6420) The MAX6418/MAX6419/MAX6420 contain both facto-ry-trimmed threshold voltages and an adjustable reset threshold input, allowing the monitoring of two voltages, V CC and V MON_TH(see F igure 4). Reset is asserted when either of the voltages falls below its respective threshold voltage.Application InformationSelecting a Reset Capacitor The reset timeout period is adjustable to accommodate a variety of µP applications. Adjust the reset timeout period (t RP) by connecting a capacitor (C SRT) between SRT and ground. Calculate the reset timeout capacitor as follows:C SRT= (t RP- 275µs) / (2.73 ✕106)where t RP is in seconds and C SRT is in Farads The reset delay time is set by a current/capacitor-con-trolled ramp compared to an internal 0.65V reference.An internal 240nA ramp current source charges the external capacitor. The charge to the capacitor is cleared when a reset condition is detected. Once thereset condition is removed, the voltage on the capacitor ramps according to the formula: dV/dt = I/C. The C SRT capacitor must ramp to 0.65V to deassert the reset.C SRT must be a low-leakage (<10nA) type capacitor, ceramic is recommended.Operating as a Voltage DetectorThe MAX6412–MAX6420 can be operated in a voltage detector mode by floating the SRT pin. The reset delaytimes for V CC rising above or falling below the thresholdare not significantly different. The reset output is deasserted smoothly without false pulses.MAX6412–MAX6420with Capacitor-Adjustable Reset Timeout Delay _______________________________________________________________________________________7M A X 6412–M A X 6420Interfacing to Other Voltages for LogicCompatibilityThe open-drain outputs of the MAX6414/MAX6417/MAX6420 can be used to interface to µPs with other logic levels. As shown in Figure 5, the open-drain out-put can be connected to voltages from 0 to 5.5V. This allows for easy logic compatibility to various micro-processors.Negative-Going V CC TransientsIn addition to issuing a reset to the µP during power-up,power-down, and brownout conditions, these supervisors are relatively immune to short-duration negative-going transients (glitches). The Maximum Transient Duration vs.Reset Threshold Overdrive graph in the Typical Operating Characteristics shows this relationship.The area below the curve of the graph is the region in which these devices typically do not generate a reset pulse. This graph was generated using a negative-going pulse applied to V CC , starting above the actual reset threshold (V TH ) and ending below it by the magni-tude indicated (reset-threshold overdrive). As the mag-nitude of the transient decreases (farther below the reset threshold), the maximum allowable pulse width decreases. Typically, a V CC transient that goes 100mV below the reset threshold and lasts 50µs or less will not cause a reset pulse to be issued.Ensuring a Valid RESET or RESETDown to V CC = 0When V CC falls below 1V, RESET /RESET current sink-ing (sourcing) capabilities decline drastically. In the case of the MAX6412, MAX6415, and MAX6418, high-impedance CMOS-logic inputs connected to RESET can drift to undetermined voltages. This presents no problems in most applications, since most µPs and other circuitry do not operate with V CC below 1V.In those applications where RESET must be valid down to 0, adding a pulldown resistor between RESET and ground sinks any stray leakage currents, holding RESET low (Figure 6). The value of the pulldown resis-tor is not critical; 100k Ωis large enough not to load RESET and small enough to pull RESET to ground. For applications using the MAX6413, MAX6416, and MAX6419, a 100k Ωpullup resistor between RESET and V CC will hold RESET high when V CC falls below 1V (Figure 7). Open-drain RESET versions are not recom-mended for applications requiring valid logic for V CC down to 0.with Capacitor-Adjustable Reset Timeout Delay8_______________________________________________________________________________________Figure 5. MAX6414/MAX6417/MAX6420 Open-Drain RESETOutput Allows use with Multiple SuppliesFigure 6. Ensuring RESET Valid to V CC= 0Figure 7. Ensuring RESET Valid to V CC = 0Layout ConsiderationSRT is a precise current source. When developing the layout for the application, be careful to minimize board capacitance and leakage currents around this pin.Traces connected to SRT should be kept as short as possible. Traces carrying high-speed digital signals and traces with large voltage potentials should be rout-ed as far from SRT as possible. Leakage current and stray capacitance (e.g., a scope probe) at this pin could cause errors in the reset timeout period. When evaluating these parts, use clean prototype boards to ensure accurate reset periods.RESET IN is a high-impedance input, which is typically driven by a high-impedance resistor-divider network (e.g., 1M Ωto 10M Ω). Minimize coupling to transient sig-nals by keeping the connections to this input short. Any DC leakage current at RESET IN (e.g., a scope probe)causes errors in the programmed reset threshold.Chip InformationTRANSISTOR COUNT: 325PROCESS: BiCMOSMAX6412–MAX6420with Capacitor-Adjustable Reset Timeout Delay_______________________________________________________________________________________9Table 1. Reset Voltages Suffix TableM A X 6412–M A X 6420with Capacitor-Adjustable Reset Timeout Delay10______________________________________________________________________________________Contact factory for availability of nonstandard versions.MAX6412–MAX6420with Capacitor-Adjustable Reset Timeout Delay______________________________________________________________________________________11Typical Operating CircuitM A X 6412–M A X 6420with Capacitor-Adjustable Reset Timeout DelayMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.12____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2005 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products, Inc.S O T -23 5L .E PSPackage Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。
MAX3490摘出资料(部分中文)
MAX3488, MAX3490，MAX3491 功能，全双工通信，而 MAX3483, MAX3485, MAX3486是专为半双工通信。
单一的电源供应，没有电荷注入；具有+ 5V 逻辑电源互操作；最大偏斜为 8ns ； 2ns 低电流掉电模式；共模输入电压范围：—7〜+ 12V ,总线上允许多达 32个收发器；全双工和半双工版本；具有电流限制和热 关机驱动器过载保护驱动器具有短路电流限制和对功耗过大的保护，热关断电路，驱动器输岀置于高阻抗状态。
接收器输入具 有故障安全功能，保证逻辑高输岀，如果两个输入端开路。
选择MAX3490做RS-422,下图为 MAX3490引脚图1 ——VCC2―― RO 接收器输出 3―― DI 驱动器输入 4 ——GND 5 ---- Y 同相驱动器输出 6 ---- Z 反相驱动器输出 7 ---- B反相接收器输入8——A 同相接收器输入保证数据传输速率（Mbps ） 10电源电压（V ） to 半/全双工 全双工摆率限制 无 驱动器/接收器使 无 关断电流（NA ）关断时无引脚数8频率大，高频谐波明显MAX3490没有接收器发送器使能，控制逻辑如下图Dences 宙Rhouf Receiver/Driver Enable（MAX3488/MAX349a}T^ble 3. Transmitting T^able 4. ReceivingMAX3490 （无RE 、DE 引脚）绝对最大额定值如下图:IN^UTOUTPUTSDI zY 1 D 1 □1INPUTSOUTPUTA. 6 RO *D.2V1 <-a.2v0 Inputs Open1□IP/SOE L叵叵DABSOLUTE MAXIMUM RATINGSS U P P 卜F \ 01 ^3 9 e l\/ kill ■ ■ ■ ■ ■■!■■■■■■ iri ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■■ ■ ■ ■ ■ ■ i ■ ■ ■ r ■ ■ ■ ■ ■ ■ ■Control IrpiJ ValLage (RE, D£) ............... .......... ............... -0.3V ta 7V□rtvsr Inpul Voltage (6l).............. .......... .......... ............... -0.3Vtn 7VOnvar Output VcItaQ* (A,気V, ZX - ......................... -7J5V to12.SVftccer^CF Input VaKagc |A, B) . -7.5V to )2 5VReceiver Ojtput Voltage (RO) . . -O.3Vto (Vcc * 0 3V)Gontinucus Power g$ipmTk?n (T R= +70芒|各Pin Pi/Mc DIP 忖申rate 9 09mWU above +70© 72?mW8-Pin SO (<1HW 5 aarrrtVy «bove +7C P C), 471mW14-Rn Plastic DlP(de<m© 10mW fl C above +70忙》... HOOtrMf14-Rn SO (deia1^ fl.SSmW.^C abaw +70*C> __________ UUJllMfOperating Temperalur?MAXU C .............. ......... *........ ... ..................... -.Ot：to +7[TCMAX3d_ _E__”…lh.. “一,. ,.H.…““-“,-H.⑷乜B +85\：Storage Temperafur? Range lo +16[yCbead Tempeiature [wldering lOlMC)..................................... +XD*CMAX3490驱动器的开关特性如下图:DRIVER SWITCHING CHARACTERISTICS-MAX3465h MAX14$0, and MAX3491ri^E：» 3.3M a T*w *25*CJPARAMtFER CONCilTICNS m TVP MA 9(UNITSDrrwf OHtreftfiii OdljMjt Del叩g■ Sdll, Figure 7 122M mDrvcr Wfe-oEiii Ckrlp ui T M7»C r Time hno良L * fiOtl, Flpm 71&25mEtr p临他n M■丫LCfflMCHHiah Lrvtl IpiLM R L * 37(1. F4l/*a T2235m轉、ion Delay Hl0hi&-Lew Leveli IpML R. - ZTflFiflWWE■Jr22 35tp L n - iPHitl □越g*曲m Dtt&Ff吕的却iH^ie S- IPDS R.fc• 27n, FipL<eS E mDRIVER OUTPUT ENABLEJOIS^BLE TIMES {IWS-iflS'IMLW3-431 聞切Dmw CXJtput tnable r me I Q L OW LE^el tfZL Ri= 110SL f^FLFa 10 45 M OEDiwci" OulpiJl EiwN? Trne tg High Len el S FZH Ri ■ 110(1 钿ure $ 45raDrw CMp讥04»^le Time tom Migih Level fi t* 11(X1. F»flL*t940 to POriw D・*l・ Tim from LwLwi tpLE R L* 11IMI. i&40 BO mDTM< dip Lit Errtb^A Tiffii Au墟电叭旳Lx L#v4l tm Rl ■匚如i 10<8W gm 他Qrta&r ErrtBifi Titre frw 电靜©询|a H(；h 4PCH R; - 1inni FigiLiraS®o r»MAX3490CPA(TCto +70'Q8 Ptasttc DIPMAX349OCSA(TCt口+7D B C\8 SOMAX3490C/D crcto+70e c \Dice'MAX349OEPA-4(rc to +85X8 Plastic DIPMAX349OESA■40X10+9598 SOMAX3490引脚配置与典型工作电路，如下图|l巒4e 2 MAA J4ML JWAJC3啲Pin 8 两#挪询事呵Typ"C^ uftMOTE AEANODE O 8LXF砂*师悶ZKSQW诂沖盟F训卜皿咻斥$钵自Ncrv^OfU MAX3490封装尺寸L -15^ Plastic DIPPLASTIC DU AL-IN-LINE PACKAGE(0.300 in.)DIM [HOMES MLLlWETESS MIN MAA MIN MAXA a 200A1ocn&-■"20 12& C 175 3104-iS *3 0D5& Q0» 1.402W0.01S a 022 041 OKoo^ 1 MC DQOB0 0120200 30 &1D0Q&0 09001328E0.300 0 925 A2A E10咖0 310dia7VT e OJOO■■eA D.3H)■*tB Q4P0 10 16 L 0 IU a iso 2923J1 PINSMCHES MJJME1TER3-MN NUM MNI MAXa 0 3430 w BM 891 0140^3513-6719-43 ET lir o.-«Q -B51: 911&.43 010MBS 0i1522 4B 23.24 020 101S104535742454□24 1 14H2B52S DE37 13。
MAX7400中文资料
8 Plastic DIP
MAX7400ESA
-40°C to +85°C
8 SO
MAX7400EPA
-40°C to +85°C
8 Plastic DIP
Ordering Information continued at end of data sheet.
Selector Guide
PART
MAX7400 MAX7403 MAX7404 MAX7407
o Clock-Tunable Corner Frequency (1Hz to 10kHz)
o 100:1 Clock-to-Corner Ratio
o Single-Supply Operation +5V (MAX7400/MAX7403) +3V (MAX7404/MAX7407)
o Low Power 2mA (Operating Mode) 0.2µA (Shutdown Mode)
The MAX7400/MAX7404 provide 82dB of stopband rejection and a sharp rolloff with a transition ratio of 1.5. The MAX7403/MAX7407 provide a sharper rolloff with a transition ratio of 1.2, while still delivering 60dB of stopband rejection. The fixed response of these devices simplifies the design task to corner-frequency selection by setting a clock frequency. The MAX7400/ MAX7403/MAX7404/MAX7407 are available in 8-pin SO and DIP packages.
MAX4144中文资料
Pin Configurations appear at end of data sheet. Typical Application Circuit appears at end of data sheet.
MAX4146ESD MAX4146EEE
________________________________________________________________ Maxim Integrated Products
MAX4144: o +2V/V Internally Fixed Gain o 130MHz Bandwidth o 1000V/µs Slew Rate o 70dB CMR at 10MHz o -90dBc SFDR (f = 10kHz) o Low Differential Gain/Phase: 0.03%/0.03° o 800µA Shutdown MAX4145: o External Gain Selection from +1V/V to +10V/V o 180MHz Bandwidth o 90MHz 0.1dB Gain Flatness o 600V/µs Slew Rate o 75dB CMR at 10MHz o -92dBc SFDR (f = 10kHz) o Very Low Noise: 3.8nV/√Hz (G = +10V/V) o 800µA Shutdown MAX4146: o External Gain Selection from +10V/V to +100V/V o 70MHz Bandwidth (AV = +10V/V) o 800V/µs Slew Rate o 90dB CMR at 10MHz o -82dBc SFDR (f = 10kHz) o Very Low Noise: 3.45nV/√Hz (G = +100V/V) o 800µA Shutdown
MAX3226EAE中文资料
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at .
_______________Ordering Information
PART MAX3224CPP MAX3224CAP MAX3224CTP MAX3224CUP MAX3224EPP MAX3224EAP MAX3224ETP MAX3224EUP TEMP RANGE PIN-PACKAGE 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C 20 Plastic DIP 20 SSOP 20 Thin QFN-EP* 20 TSSOP 20 Plastic DIP 20 SSOP 20 Thin QFN-EP* 5mm x 5mm 20 TSSOP PKG CODE — T4477-3 T2055-5 — — — T2055-5 —
_____________________ Selector Guide
PART NO. OF GUARANTEED AUTOREADY DRIVERS/ DATA RATE SHUTDOWN OUTPUT RECEIVERS (bps) PLUS 2/2 2/2 1/1 1/1 3/5 3/5 250k 1M 250k 1M 250k 1M ✔ ✔ ✔ ✔ — — ✔ ✔ ✔ ✔ ✔ ✔
MC-4R512FKE6D-840资料
GND LDQA8 GND LDQA6 GND LDQA4 GND LDQA2 GND LDQA0 GND LCTMN GND LCTM GND NC GND LROW1 GND LCOL4 GND LCOL2 GND LCOL0 GND LDQB1 GND LDQB3 GND LDQB5 GND LDQB7 GND LSCK VCMOS SOUT VCMOS NC GND NC VDD VDD NC NC NC NC
A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 A32 A33 A34 A35 A36 A37 A38 A39 A40 A41 A42 A43 A44 A45 A46
NC NC NC NC VREF GND SA0 VDD SA1 SVDD SA2 VDD RCMD GND RDQB8 GND RDQB6 GND RDQB4 GND RDQB2 GND RDQB0 GND RCOL1 GND RCOL3 GND RROW0 GND RROW2 GND NC GND RCFMN GND RCFM GND RDQA1 GND RDQA3 GND RDQA5 GND RDQA7 GND
NC NC NC NC VREF GND SCL VDD SDA SVDD SWP VDD RSCK GND RDQB7 GND RDQB5 GND RDQB3 GND RDQB1 GND RCOL0 GND RCOL2 GND RCOL4 GND RROW1 GND NC GND RCTM GND RCTMN GND RDQA0 GND RDQA2 GND RDQA4 GND RDQA6 GND RDQA8 GND
MAX3226中文资料
________________________Applications
Notebook, Subnotebook, and Palmtop Computers Cellular Phones Battery-Powered Equipment Hand-Held Equipment Peripherals Printers
元器件交易网
19-1289; Rev 1; 3/98
1µA Supply Current, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus
________________General Description
Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
MAX44009_中文手册
概述 MAX44009 环境光传感器提供I2 C 数字输出，可理想用于
智能手机、笔记本电脑、工业传感器等便携产品。器件工作 电流小于1µA，是业内功耗最低的环境光传感器，具有 22 位超宽动态范围 (0.045流明至188,000 流明)。 由于能够检测极其微弱的光线，可理想工作在深色玻璃环 境下。 片上光电二极管的光谱响应针对人眼对环境光的响应进行优 化，集成红外及紫外线屏蔽。自适应增益电路可自动选择正 确的流明范围优化测试 (计数值 / 流明)。
EVALUATION KIT AVAILABLE
19-5719; Rev 0; 1/11
AVAILAB
LE
MAX44009 功耗最低的环境光传感器， 内置 ADC
S 0.045流明至188,000 流明宽检测范围 S 小尺寸、2mm x 2mm x 0.6mm UTDFN-Opto 封装 S VCC = 1.7V至3.6V S 工作电流ICC = 0.65µA S -40°C至+85°C工作温度范围 S 器件可选地址
2
Maxim Integrated
MAX44009
功耗最低的环境光传感器， 内置 ADC
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 1.8V, TMIN to TMAX = -40NC to +85NC, unless otherwise noted.) (Note 1) PARAMETER I2C TIMING Serial-Clock Frequency Bus Free Time Between a STOP and a START Condition Hold Time (Repeated) START Condition Low Period of the SCL Clock High Period of the SCL Clock Setup Time for a Repeated START Condition Data Hold Time Data Setup Time Fall Time of SDA Transmitting Setup Time for STOP Condition Pulse Width of Spike Suppressed Note Note Note Note 1: 2: 3: 4: fSCL tBUF tHD,STA tLOW tHIGH tSU,STA tHD,DAT tSU,DAT tF tSU,STO tSP Input filters on the SDA and SCL inputs suppress noise spikes (Note 4) ISINK P 6mA, tR and tF are measured between 0.3 x VDD and 0.7 x VDD 0.6 0 50 1.3 0.6 1.3 0.6 0.6 0 100 100 0.9 400 kHz Fs Fs Fs Fs Fs Fs ns ns Fs ns SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX4164ESD+中文资料
ELECTRICAL CHARACTERISTICS: 3V Operation
(VDD = 3V, VSS = 0, VCM = VDD/2, VOUT = VDD/2, RL tied to VDD/2, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Operating Voltage Range Supply Current (Per Amplifier) Input Bias Current (Note 2)
Input Offset Voltage
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at .
________________________Applications
Battery-Powered Devices pH Probes Portable Equipment Low-Power, Low-Voltage Equipment
Medical Instruments Ionization Detectors Cellular Phones
Z64S4440M中文资料(Aerovox)中文数据手册「EasyDatasheet - 矽搜」
交流电动机运行电容器
ZeMax TM - 铝合金外壳
AEROMET II - 塑料盒
SuperMet - 金属外壳
芯片中文手册,看全文,戳
目录
AEROMET II规格（系列M型）.......................................... .................................... 3 SuperMet & ZeMax TM 规格（系列Z型）............................................ .................. 4 部分编号系统.............................................................................................................五 AEROMET II评分表（单台容量）系列M型....................................... ........... 6 AEROMET II评分表（双功能）系列型号M ....................................... ............. 8 SuperMet评分表（单台容量）系列Z型........................................ ............... 9 SuperMet评分表（双容量）系列Z型........................................ .............. 11 ZeMax TM 评分表（单台容量）系列Z型......................................... ........... 13 AEROMET II机械尺寸.............................................. .......................................... 15 SuperMet机械尺寸............................................... ........................................... 16 ZeMax TM 机械Dimensions............................................................................................17 附件 - 安装硬件.............................................. ............................................ 18
MAX1978中文数据手册
用于Peltier模块的集成温度控制器概论MAX1978 / MAX1979是用于Peltier热电冷却器（TEC）模块的最小, 最安全, 最精确完整的单芯片温度控制器。
片上功率FET和热控制环路电路可最大限度地减少外部元件, 同时保持高效率。
可选择的500kHz / 1MHz开关频率和独特的纹波消除方案可优化元件尺寸和效率, 同时降低噪声。
内部MOSFET的开关速度经过优化, 可降低噪声和EMI。
超低漂移斩波放大器可保持±0.001°C的温度稳定性。
直接控制输出电流而不是电压, 以消除电流浪涌。
独立的加热和冷却电流和电压限制提供最高水平的TEC保护。
MAX1978采用单电源供电, 通过在两个同步降压调节器的输出之间偏置TEC, 提供双极性±3A输出。
真正的双极性操作控制温度, 在低负载电流下没有“死区”或其他非线性。
当设定点非常接近自然操作点时, 控制系统不会捕获, 其中仅需要少量的加热或冷却。
模拟控制信号精确设置TEC 电流。
MAX1979提供高达6A的单极性输出。
提供斩波稳定的仪表放大器和高精度积分放大器, 以创建比例积分（PI）或比例积分微分（PID）控制器。
仪表放大器可以连接外部NTC或PTC热敏电阻, 热电偶或半导体温度传感器。
提供模拟输出以监控TEC温度和电流。
此外, 单独的过热和欠温输出表明当TEC温度超出范围时。
片上电压基准为热敏电阻桥提供偏置。
MAX1978 / MAX1979采用薄型48引脚薄型QFN-EP 封装, 工作在-40°C至+ 85°C温度范围。
采用外露金属焊盘的耐热增强型QFN-EP封装可最大限度地降低工作结温。
评估套件可用于加速设计。
应用光纤激光模块典型工作电路出现在数据手册的最后。
WDM, DWDM激光二极管温度控制光纤网络设备EDFA光放大器电信光纤接口ATE特征♦尺寸最小, 最安全, 最精确完整的单芯片控制器♦片上功率MOSFET-无外部FET♦电路占用面积<0.93in2♦回路高度<3mm♦温度稳定性为0.001°C♦集成精密积分器和斩波稳定运算放大器♦精确, 独立的加热和冷却电流限制♦通过直接控制TEC电流消除浪涌♦可调节差分TEC电压限制♦低纹波和低噪声设计♦TEC电流监视器♦温度监控器♦过温和欠温警报♦双极性±3A输出电流（MAX1978）♦单极性+ 6A输出电流（MAX1979）订购信息* EP =裸焊盘。
XMC4000中文参考手册-第21章 数模转换器(DAC)
&
DAC_CLOCK
图 21-4
数据输出级框图
参考手册 DAC V2.3.1
21-5
V1.2, 2012-12 请遵守产品信息使用协议
Device Guide XMC4500 XMC4000 家族
数模转换器（DAC）
数据输出级是 DAC 数据路径中数据转化为模拟量之前最后一个元素。它包括一个多路复用器、 加法器、乘法器、输出寄存器和 DAC 时钟输出的产生。 多路复用器在五个可用的数据源之间进行选择并用模式参数编程。相加级给出添加一个 8 位偏 移值的可能性。该偏移值主要为了满足 PG 模式的需求，以便处理未注明的信号模式到 DACs。 在这种情况下，某些特定的偏移值可以添加到信号输出模式的值中。乘法器通过简单的二进制 数值转换实现缩放比例。因此它允许编程 2n 刻度值的乘法和除法。在所有功能操作模式中偏 移和缩放操作是可能的。输出寄存器包含与相应触发器一起传递到模拟转换器的最终样本。 使用 DAC 的触发发生器（TG）产生 DAC 模拟部分操作的输出时钟。用于这一目的的 TG 触 发器输出延时了 4 个系统时钟周期并拉伸到 8 个系统时钟周期长度。 21.2.1.4 测试图案信号发生器（PG）--波形发生器
21.1.2
图 21-1
包含 Digdac 子模块的 DAC 模块方框图
参考手册 DAC V2.3.1
21-2
V1.2, 2012-12 请遵守产品信息使用协议
Device Guide XMC4500 XMC4000 家族
数模转换器（DAC）
21.2
操作模式
以下章节描述所有 DAC 的功能操作模块和如何使用它们。本章所有使用的配置参数是 21.6 节 所描述寄存器的一部分。 21.2.1 硬件特点
MAX1241中文资料datasheet
MAX1240 / MAX1241 采用 8 引脚封装的低 功耗、12 位模数转换器转换器（ADC）。 MAX1240 采 用 + 2.7V 至 + 3.6V 的 电 源 供 电，MAX1241 采用单电源供电范围是+ 2.7V 至+ 5.25V。这两款设备都具有 7.5μs 的功 能 逐次逼近 ADC，快速跟踪/保持（1.5μs）， 片上时钟和高速 3 线串行接口。 在 73ksps 的 最 大 采 样 速 度 下 ， 功 耗 仅 为 37mW（VDD = 3V）。2μA 关断模式以较 慢的吞吐率来降低功耗。 MAX1240 具 有 内 部 2.5V 参 考 电 压 ， 而 MAX1241 需要外部参考电 压。MAX1241 接受从 0V 到VREF 和参考信号输入范围包括 正电源轨。外部的时钟从 3 线接口访问数据， 它直接连接到标准微控制器的 I/O 港口。该 接口与 SPI™，QSPI™和 MICROWIRE™兼容。 该接卓越的交流特性和极低的功耗，易于使 用和小封装尺寸，使这些转换器成为远程传 感器和数据采集应用的理想之选，或者是要 求降低功耗和对空间有要求的电路的最好 选择。MAX1240/MAX1241 采用 8 引脚 PDIP 和 SO 封装。
兑换率
转换时间 跟踪/保持采集时 间 转换时间 吞吐率 光圈抖动
tCONV
t ACQ
t APR
fSCLK=2.1MHz 图8
5.5
7.5
us
1.5
us
73
ksps
30
ns
<50
ps
模拟输入
输入电压范围 输入电容
0
VREF V
16
pF
电源要求
MAX266中文数据手册
MAX266中文数据手册MAX266/265中文数据手册By Hi_Cracker @whu引脚电阻可编程通用高效滤波器-----MAX266/265General Description和MAX265是高效的容滤波器，专门设计用于需要高精度滤波的应用MAX266场合。
内置了两个独立的滤波模块，可以配置成低通，高通，带通，带阻，全通滤波器。
中心频率或者截止频率的控制需要外接电阻以及6 Pin-Strapped 的输入特性来编程实现，然而，Q值仅用电阻连接实现。
各种各样类型的滤波器都可以实现（巴特沃斯，切比雪夫，椭圆滤波器等等）。
内部集成了两个运算放大器。
MAX265可以将中心/截止频率可以最高调到40Khz，然而，MAX266，通过使用一个低范围的fclk/fo比例系数，可以将fos 调到140Khz。
4MHZ系统时钟，可以通过一个晶振或是额外的源获得。
滤波器的操作电压为从±2.37v到±6.3v或者+5V的单电源供电。
Application：声纳电子设备Anti-Aliasing 滤波器数字信号处理震动音频分析远程通信测试仪器Features滤波器参数设置软件化256bit的频率控制字电阻调整Q值和fo140Khz频率调节范围±5V或者单电源﹢5V操作电压Introduction每个MAX266/265都包含的两个可配置滤波器模块已经显示在数据手册前面的功能框图上。
fclk/fo编程输入（F0-F5）被两个滤波模块共用,然而，每个部分的fo仍然受到各自外接电阻的独立调节。
各个模块的的Q值也是受到各自的外接电阻的独立调节的。
MAX266使用比MAX265更低范围的取样比率（fclk/fo），这样就可以产生更高的信号带宽以及fo的可编程范围。
降低fclk/fo产生的影响主要就是比MAX265的滤波器参数的连续性稍微差了一些，但是这些不同可以通过使用图23所示的图形或是美信得滤波器软件来补偿。
XMC4000中文参考手册-第20章 Δ-Σ解调器(DSD)
每一个转换通道可以独立运行，由一组专用的寄存器控制。每一个通道的转换结果可以储存在 专用的通道特定结果寄存器。 被选择的调制器信号通过片上滤波环节产生数字结果。 DSD 可以接受来自不同类型的外部调制器的数据。这些数据流可被送到可选择的输入引脚中。 特点 下面的特点描述了 Δ-Σ 转换器的功能。
连接外部标准的 Δ-Σ 调制器的选项 − 可选的数据流输入 − 可选的 Δ-Σ 时钟输入或输出
参考手册 DSD, V1.4
20-4
V1.2, 2012-12 请遵守产品信息使用协议
Device Guide XMC4500 XMC4000 家族
Δ-Σ 解调器(DSD)
抽取因子 4...32:1 数字 输入
输 入 选 择 调 整
数 辅助CIC 据 滤波器 移 位
比较器
数字 结果 服务 请求
抽取因子 4...256:1
连接外部标准的调制器的选项可选的时钟输入或输出主解调器级联的硬件滤波环节deviceguidexmc4500xmc4000家族解调器dsd参考手册202v12201212dsdv14请遵守产品信息使用协议用于旋转变压器的载波信号发生器表202dsd模块应用dsd应用实例应用领域解耦的相电流检测电机控制能量转换旋变信号的解算和励磁信号的生成电机控制对于宽动态范围输入信号的可变分辨率调节电机控制测量医疗deviceguidexmc4500xmc4000家族解调器dsd参考手册203v12201212dsdv14请遵守产品信息使用协议图201dsd模块结概览deviceguidexmc4500xmc4000家族解调器dsd参考手册204v12201212dsdv14请遵守产品信息使用协议202简介和基本结构xmc4500模数转换模块提供若干个滤波器抽取率可配置的主解调器和辅助解调器的通道见图202
BH6412KN资料
Appendix1-Rev1.1
Contact us
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