IC datasheet pdf-UA9638,pdf(Dual High-Speed Differential Line Driver)

EIA/TIA-422-BOperates From a Single 5-V Power SupplyDrives Loads as Low as 50 Ω up to 15 MbpsTTL- and CMOS-Input CompatibilityOutput Short-Circuit ProtectionInterchangeable With NationalSemiconductor™ DS9638

D OR P PACKAGE(TOP VIEW)VCC1A2AGND123487651Y1Z2Y2Zdescription

The uA9638C is a dual high-speed differential line driver designed to meet ANSI Standard EIA/TIA-422-B. Theinputs are TTL and CMOS compatible and have input clamp diodes. Schottky-diode-clamped transistors areused to minimize propagation delay time. This device operates from a single 5-V power supply and is suppliedin an 8-pin package.

The uA9638 provides the current needed to drive low-impedance loads at high speeds. Typically used withtwisted-pair cabling and differential receiver(s), base-band data transmission can be accomplished up to andexceeding 15 Mbps in properly designed systems. The uA9637A dual line receiver is commonly used as thereceiver. For even faster switching speeds in the same pin configuration, see the SN75ALS191.The uA9638C is characterized for operation from 0°C to 70°C.

logic symbol†

8765logic diagram

2

8765

1Y1Z2Y2Z

1A

21Y1Z2Y2Z

1A

2A

†

32A

3

This symbol is in accordance with ANSI/IEEE Std 91-1984 andIEC Publication 617-12.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

National Semiconductor is a trademark of National Semiconductor Corporation.PRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily includetesting of all parameters.

Copyright © 1994, Texas Instruments Incorporated

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•

1

uA9638C

DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER

SLLS112C − OCTOBER 1980 − REVISED APRIL 1994schematics of inputs and outputs

EQUIVALENT OF EACH INPUTVCCTYPICAL OF ALL OUTPUTSVCC4 kΩ NOMInput9.6 Ω NOMOutputGNDabsolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 VInput voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 VContinuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating TableOperating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°CStorage temperature range, Tstg −65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C to 150°CLead temperature 1,6 mm (1/16 inch) from 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, andfunctional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is notimplied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.NOTE 1:Voltage values except differential output voltages are with respect to network GND.

DISSIPATION RATING TABLE

PACKAGE

DP

TA = 25°CPOWER RATING

725 mW1000 mW

DERATING FACTORABOVE TA = 25°C

5.8 mW/°C8.0 mW/°C

TA = 70°CPOWER RATING

4 mW0 mW

†

recommended operating conditions

MIN

Supply voltage, VCC

High-level input voltage, VIHLow-level input voltage, VILHigh-level output current, IOHLow-level output current, IOLOperating free-air temperature, TA

04.752

0.8−505070

NOM

5

MAX5.25

UNITVVVmAmA°C

2

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•

uA9638C

DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER

SLLS112C − OCTOBER 1980 − REVISED APRIL 1994electrical characteristics over operating free-air temperature range (unless otherwise noted)

PARAMETER

VIKVOHVOL|VOD1||VOD2|Δ|VOD|VOCΔ|VOC|

Input clamp voltageHighleveloutputvoltageHigh-level output voltageLowleveloutputvoltageLow-level output voltage

Magnitude of differential output voltageMagnitude of differential output voltageChange in magnitude of differentialoutput voltage‡

Common-mode output voltage§

Change in magnitude of common-modeoutput voltage‡

VO = 6 V

IOIIIIHIILIOSICC

†‡

TEST CONDITIONS

VCC = 4.75 V,VCC = 4.75 V,VIL = 0.8 VVCC = 4.75 V,IOL = 40 mAVCC = 5.25 V,

II = −18 mAVIH = 2 V, VIH = 2 V,IO = 0

IOH = −10 mAIOH = −40 mAVIL = 0.8 V,

MIN2.52

TYP†

−13.5

MAX−1.2

UNITVV

050.5 2VOD2

2

VVV

VCC = 4.75 V to 5.25 V,

See Figure 1

RL = 100 Ω,

±0.404304±0.4

0.1−0.1

100−100±1005025−200

−50

−15045

65

VVV

Output current with power offInput current

High-level input currentLow-level input currentShort-circuit output current¶Supply current (both drivers)

VCC = 0 0VCC = 5.25 V,VCC = 5.25 V,VCC = 5.25 V,VCC = 5.25 V,VCC = 5.25 V,

VO = − 0.25 VVO = − 0.25 V to 6 VVI = 5.5 VVI = 2.7 VVI = 0.5 VVO = 0No load,

All inputs at 0 V

μAμAμAμAmAmA

All typical values are at VCC = 5 V and TA = 25°C.

Δ| VOD | and Δ| VOC | are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to alow level or vice versa.

§In Standard EIA-422-A, V, which is the average of the two output voltages with respect to ground, is called output offset voltage, V.

OCOS

¶Only one output at a time should be shorted, and duration of the short circuit should not exceed one second.

switching characteristics, VCC = 5 V, TA = 25°C

PARAMETER

td(OD)tt(OD)tsk(o)

Differential output delay timeDifferential output transition timeOutput skew

CL = 15 pF,15pF

TEST CONDITIONSRL = 100 100Ω,ΩSee Figure 2

SeeFigure2See Figure 2

MIN

TYP10101

MAX2020

UNITnsnsns

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•

3

uA9638C

DUAL HIGH-SPEED DIFFERENTIAL LINE DRIVER

SLLS112C − OCTOBER 1980 − REVISED APRIL 1994PARAMETER MEASUREMENT INFORMATION

50 ΩInputVOD250 ΩVOCFigure 1. Differential and Common-Mode Output Voltages

3 V

InputY OutputCLGenerator(see Note A)RL = 100 Ω50 ΩZ OutputCL = 15 pF(see Note B)Y Output50%tsk(o)Z OutputTEST CIRCUIT

50%50%VOL

VOLTAGE WAVEFORMS

50%tsk(o)td(OD)DifferentialOutput90%10%tt(OD)tt(OD)VOHVOLVOH

90%10%1.5 V1.5 V0 V

td(OD)NOTES:A.The input pulse generator has the following characteristics: ZO = 50 Ω, PRR ≤ 500 kHz, tw = 100 ns, tr = ≤ 5 ns.

B.CL includes probe and jig capacitance.

Figure 2. Test Circuit and Voltage Waveforms

4

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

•

PACKAGEOPTIONADDENDUM

www.ti.com

21-May-2007

PACKAGINGINFORMATION

OrderableDevice

UA9638CDUA9638CDE4UA9638CDG4UA9638CDRUA9638CDRE4UA9638CDRG4UA9638CPUA9638CPE4

(1)

Status(1)ACTIVEACTIVEACTIVEACTIVEACTIVEACTIVEACTIVEACTIVE

PackageTypeSOICSOICSOICSOICSOICSOICPDIPPDIP

PackageDrawing

DDDDDDPP

PinsPackageEcoPlan(2)

Qty88888888

757575

Green(RoHS&noSb/Br)Green(RoHS&noSb/Br)Green(RoHS&noSb/Br)

Lead/BallFinishCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAU

MSLPeakTemp(3)Level-2-260C-1YEARLevel-2-260C-1YEARLevel-2-260C-1YEARLevel-2-260C-1YEARLevel-2-260C-1YEARLevel-2-260C-1YEARN/AforPkgTypeN/AforPkgType

2500Green(RoHS&

noSb/Br)2500Green(RoHS&

noSb/Br)2500Green(RoHS&

noSb/Br)5050

Pb-Free(RoHS)Pb-Free(RoHS)

Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.

LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.

NRND:Notrecommendedfornewdesigns.Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.

PREVIEW:Devicehasbeenannouncedbutisnotinproduction.Samplesmayormaynotbeavailable.OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.

(2)

EcoPlan-Theplannedeco-friendlyclassification:Pb-Free(RoHS),Pb-Free(RoHSExempt),orGreen(RoHS&noSb/Br)-pleasecheckhttp://www.ti.com/productcontentforthelatestavailabilityinformationandadditionalproductcontentdetails.TBD:ThePb-Free/Greenconversionplanhasnotbeendefined.

Pb-Free(RoHS):TI'sterms\"Lead-Free\"or\"Pb-Free\"meansemiconductorproductsthatarecompatiblewiththecurrentRoHSrequirementsforall6substances,includingtherequirementthatleadnotexceed0.1%byweightinhomogeneousmaterials.Wheredesignedtobesolderedathightemperatures,TIPb-Freeproductsaresuitableforuseinspecifiedlead-freeprocesses.

Pb-Free(RoHSExempt):ThiscomponenthasaRoHSexemptionforeither1)lead-basedflip-chipsolderbumpsusedbetweenthedieandpackage,or2)lead-baseddieadhesiveusedbetweenthedieandleadframe.ThecomponentisotherwiseconsideredPb-Free(RoHScompatible)asdefinedabove.

Green(RoHS&noSb/Br):TIdefines\"Green\"tomeanPb-Free(RoHScompatible),andfreeofBromine(Br)andAntimony(Sb)basedflameretardants(BrorSbdonotexceed0.1%byweightinhomogeneousmaterial)

(3)

MSL,PeakTemp.--TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.

ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.TIbasesitsknowledgeandbeliefoninformationprovidedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.Effortsareunderwaytobetterintegrateinformationfromthirdparties.TIhastakenandcontinuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetestingorchemicalanalysisonincomingmaterialsandchemicals.TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimitedinformationmaynotbeavailableforrelease.

InnoeventshallTI'sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTItoCustomeronanannualbasis.

Addendum-Page1

PACKAGEMATERIALSINFORMATION

www.ti.com

19-Mar-2008

TAPEANDREELINFORMATION

*Alldimensionsarenominal

Device

PackagePackagePinsTypeDrawingSOIC

D

8

SPQ

ReelReelDiameterWidth(mm)W1(mm)330.0

12.4

A0(mm)B0(mm)K0(mm)

P1(mm)8.0

WPin1(mm)Quadrant12.0

Q1

UA9638CDR25006.45.22.1

PackMaterials-Page1

PACKAGEMATERIALSINFORMATION

www.ti.com

19-Mar-2008

*Alldimensionsarenominal

DeviceUA9638CDR

PackageType

SOIC

PackageDrawing

D

Pins8

SPQ2500

Length(mm)

340.5

Width(mm)338.1

Height(mm)

20.6

PackMaterials-Page2

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