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LXT971A中文资料

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Intel® LXT971A

3.3V Dual-Speed Fast Ethernet PHY Transceiver

Datasheet

The LXT971A is an IEEE compliant Fast Ethernet PHY Transceiver that directly supports both 100BASE-TX and 10BASE-T applications. It provides a Media Independent Interface (MII) for easy attachment to 10/100 Media Access Controllers (MACs). The LXT971A also provides a Low Voltage PECL (LVPECL) interface for use with 100BASE-FX fiber networks.

This document also supports the LXT971 device.

The LXT971A supports full-duplex operation at 10 Mbps and 100 Mbps. Its operating condition can be set using auto-negotiation, parallel detection, or manual control.

The LXT971A is fabricated with an advanced CMOS process and requires only a single 3.3V power supply.

Applications

Product Features■Combination 10BASE-T/100BASE-TX or 100BASE-FX Network Interface Cards (NICs)■10/100 PCMCIA Cards

■Cable Modems and Set-Top Boxes

■3.3V Operation.

■Low power consumption (300 mW typical).

■Low-power “Sleep” mode.

■10BASE-T and 100BASE-TX using a single RJ-45 connection.

■Supports auto-negotiation and parallel detection.

■MII interface with extended register capability.

■Robust baseline wander correction performance.

■100BASE-FX fiber-optic capable.

■Standard CSMA/CD or full-duplex operation.

■Supports JTAG boundary scan.■Configurable via MDIO serial port or hardware control pins.

■Integrated, programmable LED drivers.

■64-ball Plastic Ball Grid Array (PBGA). — LXT971ABC - Commercial (0° to 70°C ambient).—LXT971ABE - Extended (-40° to 85°C ambient).

■64-pin Low-profile Quad Flat Package (LQFP). — LXT971ALC - Commercial (0° to 70°C ambient).— LXT971ALE - Extended (-40° to 85°C ambient).

Order Number: 249414-002August 2002元器件交易网www.cecb2b.com2 DatasheetDocument #: 249414Revision #: 002

Rev. Date: August 7, 2002INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTELÆ PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, life sustaining applications.Intel may make changes to specifications and product descriptions at any time, without notice.Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.The LXT971A may contain design defects or errors known as errata which may cause the product to deviate from published specifications. Current characterized errata are available on request.Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800-548-4725 or by visiting Intel's website at http://www.intel.com.Copyright © Intel Corporation, 2002*Third-party brands and names are the property of their respective owners.元器件交易网www.cecb2b.comLXT971A 3.3 V Dual-Speed Fast Ethernet Transceiver

Datasheet3Document #: 249414Revision #: 002

Rev. Date: August 7, 2002Contents

1.0Pin Assignments..............................................................................................................................12

2.0Signal Descriptions..........................................................................................................................16

3.0Functional Description.....................................................................................................................21

3.1Introduction.......................................................................................................................213.1.1Comprehensive Functionality.............................................................................213.1.2OSP™ Architecture............................................................................................213.2Network Media / Protocol Support....................................................................................223.2.110/100 Network Interface...................................................................................223.2.1.1Twisted-Pair Interface..........................................................................223.2.1.2Fiber Interface.......................................................................................223.2.1.3Fault Detection and Reporting..............................................................233.2.2MII Data Interface...............................................................................................233.2.2.1Increased MII Drive Strength...............................................................233.2.3Configuration Management Interface.................................................................243.2.3.1MDIO Management Interface..............................................................243.2.3.2Hardware Control Interface..................................................................253.3Operating Requirements....................................................................................................263.3.1Power Requirements...........................................................................................263.3.2Clock Requirements............................................................................................263.3.2.1External Crystal/Oscillator...................................................................263.3.2.2MDIO Clock.........................................................................................263.4Initialization.......................................................................................................................263.4.1MDIO Control Mode..........................................................................................263.4.2Hardware Control Mode.....................................................................................273.4.3Reduced Power Modes........................................................................................283.4.3.1Hardware Power Down........................................................................283.4.3.2Software Power Down..........................................................................293.4.3.3Sleep Mode...........................................................................................293.4.4Reset....................................................................................................................293.4.5Hardware Configuration Settings........................................................................303.5Establishing Link...............................................................................................................313.5.1Auto-Negotiation................................................................................................313.5.1.1Base Page Exchange.............................................................................313.5.1.2Next Page Exchange.............................................................................313.5.1.3Controlling Auto-Negotiation...............................................................313.5.2Parallel Detection................................................................................................313.6MII Operation....................................................................................................................323.6.1MII Clocks..........................................................................................................323.6.2Transmit Enable..................................................................................................333.6.3Receive Data Valid.............................................................................................333.6.4Carrier Sense.......................................................................................................333.6.5Error Signals.......................................................................................................333.6.6Collision..............................................................................................................333.6.7Loopback.............................................................................................................343.6.7.1Operational Loopback..........................................................................35元器件交易网www.cecb2b.com

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AD9714资料

AD9714资料

Dual, 8-/10-/12-/14-Bit Low Power Digital-to-Analog Converters

AD9714/AD9715/AD9716/AD9717

Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 781.329.4700 Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved. FEATURES

Power dissipation @ 3.3 V, 2 mA output

37 mW @ 10 MSPS

CS5171GDR8中文资料

CS5171GDR8中文资料

© Semiconductor Components Industries, LLC, 2004June, 2004 − Rev. 201Publication Order Number:CS5171/D CS5171, CS5172, CS5173,CS51741.5 A 280 kHz/560 kHzBoost RegulatorsThe CS5171/2/3/4 products are 280 kHz/560 kHz switchingregulators with a high efficiency, 1.5 A integrated switch. These partsoperate over a wide input voltage range, from 2.7 V to 30 V. Theflexibility of the design allows the chips to operate in most powersupply configurations, including boost, flyback, forward, inverting,and SEPIC. The ICs utilize current mode architecture, which allowsexcellent load and line regulation, as well as a practical means forlimiting current. Combining high frequency operation with a highlyintegrated regulator circuit results in an extremely compact powersupply solution. The circuit design includes provisions for featuressuch as frequency synchronization, shutdown, and feedback controlsfor either positive or negative voltage regulation. These parts arepin−to−pin compatible with LT1372/1373.Part NumberFrequencyFeedback Voltage PolarityCS5171280 kHzpositiveCS5172280 kHznegativeCS5173560 kHzpositiveCS5174560 kHznegativeFeatures•Pb−Free Packages are Available•Integrated Power Switch: 1.5 A Guaranteed•Wide Input Range: 2.7 V to 30 V•High Frequency Allows for Small Components•Minimum External Components•Easy External Synchronization•Built in Overcurrent Protection•Frequency Foldback Reduces Component Stress During anOvercurrent Condition•Thermal Shutdown with Hysteresis•Regulates Either Positive or Negative Output Voltages•Shut Down Current: 50 mA Maximum•Pin−to−Pin Compatible with LT1372/1373•Wide Temperature Range♦Industrial Grade: −40°C to 125°C♦Commercial Grade: 0°C to 125°Cx= 1, 2, 3, or 4x= E, GA= Assembly LocationL= Wafer LotY= YearW= Work WeekORDERING INFORMATIONCS5171/3CS5172/4SOIC−8D SUFFIXCASE 751VCCSS1517xxALYW8AGNDTestPGNDFBVSWVCPIN CONNECTIONS ANDMARKING DIAGRAMVCCSS1517xxALYW8AGNDNFBPGNDTestVSWVCSee detailed ordering and shipping information in thepackage dimensions section on page 17 of this data sheet.元器件交易网CS5171, CS5172, CS5173, CS51742+CS5171/312345678VOUTL15 VC322 mFVCFBTestSSVCCAGNDPGNDVSW+MBRS120T3D122 mHC222 mFR31.28 k3.72 kR2C1SS3.3 VR15 k0.01 mFFigure 1. Applications DiagramMAXIMUM RATINGSRatingValueUnitJunction Temperature Range, TJ−40 to +150°CStorage Temperature Range, TSTORAGE−65 to +150°CPackage Thermal Resistance: Junction−to−Case, RqJCJunction−to−Ambient, RqJA45165°C/W°C/WLead Temperature Soldering: Reflow (Note 1)230 Peak°CESD, Human Body Model1.2kVMaximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limitvalues (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,damage may occur and reliability may be affected.1.60 second maximum above 183°C.MAXIMUM RATINGS Pin NamePin SymbolVMAXVMINISOURCEISINKIC Power InputVCC30 V−0.3 VN/A200 mAShutdown/SyncSS30 V−0.3 V1.0 mA1.0 mALoop CompensationVC6.0 V−0.3 V10 mA10 mAVoltage Feedback InputFB(CS5171/3 only)10 V−0.3 V1.0 mA1.0 mANegative Feedback Input(transient, 10 ms)NFB(CS5172/4 only)−10 V10 V1.0 mA1.0 mATest PinTest6.0 V−0.3 V1.0 mA1.0 mAPower GroundPGND0.3 V−0.3 V4 A10 mAAnalog GroundAGND0 V0 VN/A10 mASwitch InputVSW40 V−0.3 V10 mA3.0 A元器件交易网CS5171, CS5172, CS5173, CS51743ELECTRICAL CHARACTERISTICS (2.7 V< VCC < 30 V; Industrial Grade: −40°C < TJ < 125°C; Commercial Grade: 0°C < TJ < 125°C; For all CS5171/2/3/4 specifications unless otherwise stated.)CharacteristicTest ConditionsMinTypMaxUnitPositive and Negative Error AmplifiersFB Reference Voltage (CS5171/3 only)VC tied to FB; measure at FB1.2461.2761.300VNFB Reference Voltage (CS5172/4 only)VC = 1.25 V−2.55−2.45−2.35VFB Input Current (CS5171/3 only)FB = VREF−1.00.11.0mANFB Input Current (CS5172/4 only)NFB = NVREF−16−10−5.0mAFB Reference Voltage Line Regulation(CS5171/3 only)VC = FB−0.010.03%/VNFB Reference Voltage Line Regulation(CS5172/4 only)VC = 1.25 V−0.010.05%/VPositive Error Amp TransconductanceIVC = ±25 mA300550800mMhoNegative Error Amp TransconductanceIVC = ±5 mA115160225mMhoPositive Error Amp Gain(Note 2)200500−V/VNegative Error Amp Gain(Note 2)100180320V/VVC Source CurrentFB = 1.0 V or NFB = −1.9 V, VC = 1.25 V255090mAVC Sink CurrentFB = 1.5 V or NFB = −3.1 V, VC = 1.25 V2006251500mAVC High Clamp VoltageFB = 1.0 V or NFB = −1.9 V; VC sources 25 mA1.51.71.9VVC Low Clamp VoltageFB = 1.5 V or NFB = −3.1 V, VC sinks 25 mA0.250.500.65VVC ThresholdReduce VC from 1.5 V until switching stops0.751.051.30VOscillatorBase Operating FrequencyCS5171/2, FB = 1 V or NFB = −1.9 V230280310kHzReduced Operating FrequencyCS5171/2, FB = 0 V or NFB = 0 V3052120kHzMaximum Duty CycleCS5171/29094−%Base Operating FrequencyCS5173/4, FB = 1 V or NFB = −1.9 V460560620kHzReduced Operating FrequencyCS5173/4, FB = 0 V or NFB = 0 V60104160kHzMaximum Duty CycleCS5173/48290−%NFB Frequency Shift ThresholdFrequency drops to reduced operating frequency−0.80−0.65−0.50VFB Frequency Shift ThresholdFrequency drops to reduced operating frequency0.360.400.44VSync/ ShutdownSync RangeCS5171/2320−500kHzSync RangeCS5173/4640−1000kHzSync Pulse Transition ThresholdRise time = 20 ns2.5−−VSS Bias CurrentSS = 0 VSS = 3.0 V−15−−3.03.0−8.0mAmAShutdown Threshold−0.500.851.20VShutdown Delay2.7 V ≤ VCC ≤12 V12 V < VCC ≤30 V12128036350200msms2.Guaranteed by design, not 100% tested in production.元器件交易网

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LM4700

Overture™AudioPowerAmplifierSeries

30WAudioPowerAmplifierwith

MuteandStandbyModes

GeneralDescription

TheLM4700isanaudiopoweramplifiercapableofdeliver-

ingtypically30Wofcontinuousaverageoutputpowerintoan

8Ωloadwithlessthan0.1%(THD+N).

TheLM4700hasanindependentsmoothtransitionfade-in/

outmuteandapowerconservingstandbymodewhichcan

becontrolledbyexternallogic.

TheperformanceoftheLM4700,utilizingitsSelfPeakIn-

stantaneousTemperature(˚Ke)(SPiKe™)ProtectionCir-

cuitry,placesitinaclassabovediscreteandhybridamplifi-

ersbyprovidinganinherently,dynamicallyprotectedSafe

OperatingArea(SOA).SPiKeProtectionmeansthatthese

partsarecompletelysafeguardedattheoutputagainstover-

voltage,undervoltage,overloads,includingthermalrunaway

andinstantaneoustemperaturepeaks.KeySpecifications

nTHD+Nat1kHzatcontinuousaverageoutputpowerof

25Winto8Ω:0.1%(max)

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Technical Datasheet DS25

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Luxeon Emitters can be purchased in reels for high volume assembly.

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For high volume applications, custom Luxeon power light source designs

are available upon request, to meet your specific needs.LuxeonEmitter

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󰂌Highest flux per LED family

in the world

󰂌Very long operating life (up to

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󰂌Available in White, Green,

Blue, Royal Blue, Cyan, Red,

Red󰀉Orange, and Amber

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