THS7303 www.ti.com SLOS479B–OCTOBER2005–REVISEDMARCH2011 2 3-Channel, Low-Power Video Amplifier with I C Control, Selectable Filters, 6-dB Gain, SAG Correction, 2:1 Input MUX, and Selectable Input Bias Modes CheckforSamples:THS7303 FEATURES APPLICATIONS 1 • 3-VideoAmplifiersforCVBS,S-Video , • SetTopBoxOutputVideoBuffering 234 Y'U'V',SD/ED/HDY'P' P' ,and G'B'R'(R'G'B') • PVR/DVDROutputBuffering B R • I2C™ControlofAllFunctions • USB/PortableLowPowerVideoBuffering • IntegratedLow-PassFilters DESCRIPTION – 5th-OrderButterworthCharacteristics Fabricated using the new complementary – SelectableCorner Frequenciesof9-MHz, silicon-germanium (SiGe) BiCom-3 process, the 16-MHz,35-MHz,and Bypass(190-MHz) THS7303 is a low-power, single-supply, 2.7-V to 5-V, • SelectableInputBiasModes 3-channel integrated video buffer. It incorporates a selectable fifth-order Butterworth filter to eliminate – AC-CoupledwithSync-Tip-Clamp data converter images. The 9-MHz filter is a perfect – AC-CoupledwithBias choice for SDTV video including composite (CVBS), – DC-Coupledwith135-mVInputShift S-Video, and 480i/576i Y'P' P' , and G'B'R' (R'G'B') B R signals. The 16-MHz filter is ideal for EDTV – DC-Coupled 480p/576p Y'P' P' , G'B'R', and VGA signals. The B R • 2:1InputMUX AllowsMultipleInputSources 35-MHz filter is useful for HDTV 720p/1080i Y'P' P' , B R • Built-in6-dBGain(2V/V) G'B'R', and SVGA/XGA signals. For 1080p or SXGA/UXGA signals, the filter can be bypassed • SAGCorrectionCapable allowing a 190-MHz bandwidth, 300-V/μs amplifier to • 2.7-Vto5-VSingleSupplyOperation bufferthesignal. • Low16.6-mA(3.3V)TotalQuiscentCurrent Each channel of the THS7303 is individually I2C • IndividualDisable(< 1μA)andMuteControl configurable for all functions which makes it flexible • Rail-to-RailOutput: for any application. Its rail-to-rail output stage allows for both ac and dc coupling applications. The 6-dB – Output Swingswithin100mV fromthe gain along with the built-in SAG correction allows for RailstoAllowACorDCOutputCoupling maximumflexibilityasanoutput videobuffer. – SupportsDrivingTwoLinesper Channel The 16.6-mA total quiescent current (55 mW total • LowDifferentialGain/Phaseof0.13%/0.55° power) makes the THS7303 an excellent choice for USB powered or portable video applications. While fully disabled, the THS7303 consumes less than 1 μA makingitidealfor energysensitiveapplications. 3.3 V Bypass Video InA DAC/ Encoder In B 2:1 X1 + Out 47mF LPF Video R 9 / 16 / - 75W Out AC 35-MHz 675W DC Sync SAG 135 mV DC TIP External AC- Clamp MUTE 1 kW 878W 150W 33mF 75W Input BIAS 75W SDA SCL I2C-A1 I2C-A0 3.3 V Figure1. 3.3-V,Single-Supply, DC-Input/AC-VideoOutputSystemwithSAG Correction (1of3ChannelsShown) 1 Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexas Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet. WindowsisaregisteredtrademarkofMicrosoftCorporation. 2I2CisatrademarkofNXPSemiconductors. 3 Allothertrademarksarethepropertyoftheirrespectiveowners. 4 PRODUCTIONDATAinformationiscurrentasofpublicationdate. Copyright©2005–2011,TexasInstrumentsIncorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarilyincludetestingofallparameters. THS7303 SLOS479B–OCTOBER2005–REVISEDMARCH2011 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage. ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemore susceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications. DESCRIPTION (CONTINUED) As part of the THS7303 flexibility, the 2:1 MUX input can be selected for ac- or dc-coupled inputs. The ac-coupled modes include a sync-tip-clamp option for CVBS/Y'/G'/B'/R' with sync or a fixed bias for the C'/P' /P' B R non-sync channels. The dc input options include a dc input or a (dc + 135-mV) input offset shift to allow for a full syncdynamicrangeattheoutputwith0-V input. PACKAGE/ORDERINGINFORMATION(1) PRODUCT PACKAGE-LEAD PACKAGEDESIGNATOR TRANSPORTMEDIA,QUANTITY THS7303PW Rails,70 TSSOP-20 PW THS7303PWR TapeandReel,2000 (1) Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTI Websiteatwww.ti.com. ABSOLUTE MAXIMUM RATINGS Overoperatingfree-airtemperaturerange(unlessotherwisenoted).(1) PARAMETER UNIT VSS Supplyvoltage,VS+toGND 5.5V VI Inputvoltage –0.4VtoVS+ IO Outputcurrent ±125mA Continuouspowerdissipation SeeDissipationRatingsTable TJ Maximumjunctiontemperature,anycondition(2) +150°C TJ Maximumjunctiontemperature,continuousoperation,longtermreliability(3) +125°C Tstg Storagetemperaturerange –65°Cto+150°C Leadtemperature1,6mm(1/16inch)fromcasefor10seconds +300°C HBM 2000V ESDratings CDM 750V MM 100V (1) Stressesabovethoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratings onlyandfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperating conditionsisnotimpliedExposuretoabsolutemaximumratedconditionsforextendedperiodsmaydegradedevicereliability. (2) Theabsolutemaximumjunctiontemperatureunderanyconditionislimitedbytheconstraintsofthesiliconprocess. (3) Theabsolutemaximumjunctiontemperatureforcontinuousoperationislimitedbythepackageconstraints.Operationabovethis temperaturemayresultinreducedreliabilityand/orlifetimeofthedevice. DISSIPATION RATINGS POWERRATING(1) θJC θJA (TJ=+125°C) PACKAGE (°C/W) (°C/W) TA=+25°C TA=+85°C TSSOP-20(PW) 32.3 83(2) 1.2W 0.48W RECOMMENDED OPERATING CONDITIONS PARAMETER MIN NOM MAX UNIT VSS Supplyvoltage,VS+ 2.7 5 V TA Ambienttemperature –40 +85 °C (1) Powerratingisdeterminedwithajunctiontemperatureof+125°C.Thisisthepointwheredistortionstartstosubstantiallyincreaseand long-termreliabilitystartstobereduced.ThermalmanagementofthefinalPCBshouldstrivetokeepthejunctiontemperatureator below+125°Cforbestperformanceandreliability. (2) ThisdatawastakenwiththeJEDECHigh-KtestPCB.FortheJEDEClow-KtestPCB,theθ is+125.8°C. JA 2 SubmitDocumentationFeedback Copyright©2005–2011,TexasInstrumentsIncorporated ProductFolderLink(s):THS7303 THS7303 www.ti.com SLOS479B–OCTOBER2005–REVISEDMARCH2011 ELECTRICAL CHARACTERISTICS: V = 3.3 V S+ R =150ΩtoGND,filterselect=9MHz,inputbias=dc,andSAGpinshortedtotheoutputpin(unlessotherwisenoted). L TYP OVERTEMPERATURE PARAMETER TESTCONDITIONS +25°C +25°C 0°Cto+70°C –40°Cto+85°C UNITS MIN/MAX ACPERFORMANCE FilterSelect=9MHz(1) 9 7.6/10.4 7.4/10.6 7.3/10.7 MHz Min/Max Small-signalbandwidth Filterselect=16MHz(1) 16 13.4/18.6 13.1/18.9 13/19 MHz Min/Max (–3dB)VO–0.2VPP Filterselect=35MHz(1) 35 29.4/40.6 29.1/40.9 29/41 MHz Min/Max Filterselect=bypass 175 MHz Filterselect=9MHz 9 MHz Large-signalbandwidth Filterselect=16MHz 16 MHz (–3dB)VO–2VPP Filterselect=35MHz 35 MHz Filterselect=bypass 83 MHz Slewrate Filterselect=bypass,VO=2VPP 300 V/μs Filterselect=9MHz 54 ns Filterselect=16MHz 31.5 ns Groupdelayat100kHz Filterselect=35MHz 17 ns Filterselect=bypass 3 ns Filterselect=9MHz,at5.1MHz 10.5 ns Groupdelayvariationwith Filterselect=16MHz,at11MHz 8 ns respectto100kHz Filterselect=35MHz,at27MHz 4.8 ns Groupdelaymatching Allfilters:channel-to-channel 0.5 ns Filterselect=9MHz,at5.75MHz 0.2 -0.3/0.9 -0.5/1.1 -0.6/1.2 dB Min/Max Filterselect=9MHz,at27MHz 43 33 32 31 dB Min Attenuationwithrespectto Filterselect=16MHz,at11MHz 0.25 -0.3/0.9 -0.5/1.1 -0.6/1.2 dB Min/Max 100kHz Filterselect=16MHz,at54MHz 44 33 32 31 dB Min Filterselect=35MHz,at27MHz 0.7 -0.3/2.7 -0.5/2.8 -0.6/2.9 dB Min/Max Filterselect=35MHz,at74MHz 28 15 14 13 dB Min Mutefeedthrough Filterselect=bypass,at30MHz -73 dB Differentialgain Filterselect=9MHz,NTSC/PAL 0.13/0.27 % Differentialphase Filterselect=9MHz,NTSC/PAL 0.55/0.65 ° Filterselect=9MHz –59 dB Totalharmonicdistortion Filterselect=16MHz –62 dB f=1MHz,2VPP Filterselect=35MHz –58 dB Filterselect=bypass –60 dB Filterselect=9MHz,480isource 84 dB Signal-to-noiseratio(unified Filterselect=16MHz,480psource 82 dB weightingperCCIR576-2 recommendation) Filterselect=35MHz,720psource 79 dB Filterselect=bypass(2),720psource 67 dB Filterselect=9MHz,at1MHz –65 dB Channel-to-channelcrosstalk Filterselect=16MHz,at1MHz –67 dB (VO=2VPP) Filterselect=35MHz,at1MHz –69 dB Filterselect=bypass,at1MHz –70 dB Filterselect=9MHz,at5.1MHz 70 dB Filterselect=16MHz,at11MHz 69 dB MUXisolation Filterselect=35MHz,at27MHz 69 dB Filterselect=bypass,at60MHz 73 dB ACgain:allchannels f=100kHz 6 5.7/6.3 5.65/6.35 5.65/6.35 dB Min/Max Outputimpedance f=10MHz 0.7 Ω (1) Min/Maxvalueslistedarespecifiedbydesignonly.PCBcapacitanceaffectsthefiltercharacteristics,especiallythe35-MHzandbypass moderesponses. (2) Bandwidthupto100-MHz,noweighting,tiltnull. Copyright©2005–2011,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLink(s):THS7303 THS7303 SLOS479B–OCTOBER2005–REVISEDMARCH2011 www.ti.com ELECTRICAL CHARACTERISTICS: V = 3.3 V (continued) S+ R =150ΩtoGND,filterselect=9MHz,inputbias=dc,andSAGpinshortedtotheoutputpin(unlessotherwisenoted). L TYP OVERTEMPERATURE PARAMETER TESTCONDITIONS +25°C +25°C 0°Cto+70°C –40°Cto+85°C UNITS MIN/MAX DCPERFORMANCE Outputoffsetvoltage Bias=dc 35 90 95 95 mV Max Averageoffsetvoltagedrift Bias=dc 20 μV/°C Bias=dc+135mV,VI=0V 290 235/345 215/360 200/375 mV Min/Max Biasoutputvoltage Bias=ac 1.65 1.5/1.8 1.45/1.85 1.45/1.85 V Min/Max Sync-tip-clampoutputvoltage Bias=acSTC 290 210/370 200/380 195/385 mV Min/Max Inputbiascurrent Bias=dc,impliesIBoutofthepin –0.6 –4 –5 –5 μA Max Averagebiascurrentdrift Bias=dc 10 nA/°C Bias=acSTC,lowbias 1.8 0.6/3.3 0.5/3.5 0.4/3.6 μA Min/Max Sync-tip-clampbiascurrent Bias=acSTC,midbias 5.8 4.3/8.2 4.1/8.4 4/8.5 μA Min/Max Bias=acSTC,highbias 7.8 6.2/10.8 6/11 5.9/11.1 μA Min/Max INPUTCHARACTERISTICS Inputvoltagerange Bias=dc,limitedbyoutput 0/1.57 0/1.52 0/1.47 0/1.47 V Min/Max Bias=acbiasmode 19 kΩ Inputresistance Bias=dc,dc+135mV,acSTC 3 MΩ Inputcapacitance 2 pF OUTPUTCHARACTERISTICS RL=150Ωto+1.65V 3.15 2.9 2.8 2.8 V Min RL=150ΩtoGND 3.05 2.85 2.75 2.75 V Min Highoutputvoltageswing RL=75Ωto+1.65V 3.05 2.8 2.7 2.7 V Min RL=75ΩtoGND 2.9 2.65 2.55 2.55 V Min RL=150Ωto+1.65V 0.14 0.24 0.27 0.28 V Max RL=150ΩtoGND 0.09 0.17 0.2 0.21 V Max Lowoutputvoltageswing RL=75ΩtoGND 0.24 0.33 0.36 0.37 V Max RL=75ΩtoGND 0.09 0.17 0.2 0.21 V Max RL=10Ωto+1.65V,sourcing 70 45 42 40 mA Min Outputcurrent RL=10Ωto+1.65V,sinking 70 45 42 40 mA Min POWERSUPPLY Maximumoperatingvoltage 3.3 5.5 5.5 5.5 V Max Minimumoperatingvoltage 3.3 2.6 2.6 2.6 V Min Maximumquiescentcurrent PerchannelVI=200mV 6 7.2 7.4 7.5 mA Max Minimumquiescentcurrent PerchannelVI=200mV 6 4.8 4.6 4.5 mA Min Totalquiescentcurrent Allchannelson,VI=200mV(3) 16.6 mA Power-supplyrejection (+PSRR) VS+=3.5Vto3.1V 62 37 35 35 dB Min DISABLECHARACTERISTICS Quiescentcurrent All3channelsdisabled(4) 0.1 μA Turn-ontimedelay(tON) Timereaches50%offinalvalueafter 5 μs I2Ccontroliscompleted Turn-ontimedelay(tOFF) 2 μs DIGITALCHARACTERISTICS High-levelinputvoltagexxx 2.3 V Typ VIH Low-levelinputvoltagexxx 1.0 V Typ VIL (3) Duetosharingofinternalbiascircuitry,thequiescentcurrent(withallchannelsoperating)islessthanthesingleindividualchannel quiescentcurrentsaddedtogether. (4) NotethattheI2CcircuitryisstillactivewhileinDisablemode.ThecurrentshowniswhilethereisnoactivitywiththedeviceI2Ccircuitry. 4 SubmitDocumentationFeedback Copyright©2005–2011,TexasInstrumentsIncorporated ProductFolderLink(s):THS7303 THS7303 www.ti.com SLOS479B–OCTOBER2005–REVISEDMARCH2011 ELECTRICAL CHARACTERISTICS: V = 5 V S+ R =150ΩtoGND,filterselect=9MHz,inputbias=dc,andSAGpinshortedtotheoutputpin(unlessotherwisenoted). L TYP OVERTEMPERATURE PARAMETER TESTCONDITIONS +25°C +25°C 0°Cto+70°C –40°Cto+85°C UNITS MIN/MAX ACPERFORMANCE Filterselect=9MHz(1) 9 7.6/10.4 7.4/10.6 7.3/10.7 MHz Min/Max Small-signalbandwidth Filterselect=16MHz(1) 16 13.4/18.6 13.1/18.9 13/19 MHz Min/Max (–3dB)VO–0.1VPP Filterselect=35MHz(1) 35 29.4/40.6 29.1/40.9 29/41 MHz Min/Max Filterselect=bypass 190 MHz Filterselect=9MHz 9 MHz Large-signalbandwidth Filterselect=16MHz 16 MHz (–3dB)VO–2VPP Filterselect=35MHz 35 MHz Filterselect=bypass 90 MHz Slewrate Filterselect=bypass 320 V/μs Filterselect=9MHz 53 ns Filterselect=16MHz 31 ns Groupdelayat100kHz Filterselect=35MHz 16.5 ns Filterselect=bypass 2.9 ns Filterselect=9MHz,at5.1MHz 10.5 ns Groupdelayvariationwith Filterselect=16MHz,at11MHz 7.5 ns respectto100kHz Filterselect=35MHz,at27MHz 4.5 ns Groupdelaymatching Allfilters:channel-to-channel 0.5 ns Filterselect=9MHz,at5.75MHz 0.2 -0.3/0.9 -0.5/1.1 -0.6/1.2 dB Min/Max Filterselect=9MHz,at27MHz 42 33 32 31 dB Min Attenuationwithrespectto Filterselect=16MHz,at11MHz 0.25 -0.3/0.9 -0.5/1.1 -0.6/1.2 dB Min/Max 100kHz Filterselect=16MHz,at54MHz 44 33 32 31 dB Min Filterselect=35MHz,at27MHz 0.7 -0.3/2.7 -0.5/2.8 -0.6/2.9 dB Min/Max Filterselect=35MHz,at74MHz 28 15 14 13 dB Min Mutefeedthrough Filterselect=bypass,at30MHz 73 dB Differentialgain Filterselect=9MHz,NTSC/PAL 0.2/0.35 % Differentialphase Filterselect=9MHz,NTSC/PAL 0.73/0.86 ° Filterselect=9MHz –61 dB Totalharmonicdistortion Filterselect=16MHz –66 dB f=1MHz,2VPP Filterselect=35MHz –66 dB Filterselect=bypass –67 dB Filterselect=9MHz,480isource 84 dB Signal-to-noiseratio(unified Filterselect=16MHz,480psource 82 dB weightingperCCIR576-2 recommendation) Filterselect=35MHz,720psource 79 dB Filterselect=bypass(2),720psource 67 dB Filterselect=9MHz:at1MHz –65 dB Filterselect=16MHz:at1MHz –67 dB Channel-to-channelcrosstalk Filterselect=35MHz:at1MHz –69 dB Filterselect=bypass:at1MHz –70 dB Filterselect=9MHz:at5.1MHz 70 dB Filterselect=16MHz:at11MHz 69 dB MUXisolation Filterselect=35MHz:at27MHz 71 dB Filterselect=bypass:at60MHz 68 dB ACgain:allchannels f=100kHz 6 5.7/6.3 5.65/6.35 5.65/6.35 dB Min/Max Outputimpedance f=10MHz 0.7 Ω (1) Min/Maxvalueslistedarespecifiedbydesignonly.PCBcapacitanceaffectsthefiltercharacteristics,especiallythe35-MHzandbypass moderesponses. (2) Bandwidthupto100-MHz,noweighting,tiltnull. Copyright©2005–2011,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLink(s):THS7303 THS7303 SLOS479B–OCTOBER2005–REVISEDMARCH2011 www.ti.com ELECTRICAL CHARACTERISTICS: V = 5 V (continued) S+ R =150ΩtoGND,filterselect=9MHz,inputbias=dc,andSAGpinshortedtotheoutputpin(unlessotherwisenoted). L TYP OVERTEMPERATURE PARAMETER TESTCONDITIONS +25°C +25°C 0°Cto+70°C –40°Cto+85°C UNITS MIN/MAX DCPERFORMANCE Outputoffsetvoltage Bias=dc 30 90 95 95 mV Max Averageoffsetvoltagedrift Bias=dc 20 μV/°C Bias=dc+135mV,VI=0V 290 235/345 215/360 200/375 mV Min/Max Biasoutputvoltage Bias=ac 2.5 2.3/2.7 2.25/2.75 2.25/2.75 V Min/Max Sync-tip-clampoutputvoltage Bias=acSTC 300 230/375 215/385 210/390 mV Min/Max Inputbiascurrent Bias=dc,impliesIBoutofthepin –0.6 –4 –5 –5 μA Max Averagebiascurrentdrift Bias=dc 10 nA/°C Bias=acSTC,lowbias 1.9 0.6/3.3 0.5/3.5 0.4/3.6 μA Min/Max Sync-tip-clampbiascurrent Bias=acSTC,midbias 6 4.3/8.2 4.1/8.4 4/8.5 μA Min/Max Bias=acSTC,highbias 8.2 6.2/10.8 6/11 5.9/11.1 μA Min/Max INPUTCHARACTERISTICS Inputvoltagerange Bias=dc,limitedbyoutput 0/2.4 0/2.35 0/2.3 0/2.3 V Min/Max Bias=acbiasmode 19 kΩ Inputresistance Bias=dc,dc+135mV,acSTC 3 MΩ Inputcapacitance 2 pF OUTPUTCHARACTERISTICS RL=150Ωto+2.5V 4.8 4.4 4.3 4.3 V Min RL=150ΩtoGND 4.65 4.2 4.1 4.1 V Min Highoutputvoltageswing RL=75Ωto+2.5V 4.7 4.3 4.2 4.2 V Min RL=75ΩtoGND 4.4 4.1 4 4 V Min RL=150Ωto+2.5V 0.2 0.34 0.37 0.37 V Max RL=150ΩtoGND 0.1 0.23 0.26 0.27 V Max Lowoutputvoltageswing RL=75ΩtoGND 0.35 0.46 0.5 0.5 V Max RL=75ΩtoGND 0.1 0.23 0.26 0.27 V Max RL=10Ωto+2.5V,sourcing 85 60 57 55 mA Min Outputcurrent RL=10Ωto+2.5V,sinking 85 60 57 55 mA Min POWERSUPPLY Maximumoperatingvoltage 5 5.5 5.5 5.5 V Max Minimumoperatingvoltage 5 2.6 2.6 2.6 V Min Maximumquiescentcurrent PerchannelVI=200mV 6.6 7.9 8.1 8.2 mA Max Minimumquiescentcurrent PerchannelVI=200mV 6.6 5.3 5.1 5 mA Min Totalquiescentcurrent Allchannelson,VI=200mV(3) 18.9 mA Power-supplyrejection (+PSRR) VS+=5.2Vto4.8V 66 38 36 36 dB Min DISABLECHARACTERISTICS Quiescentcurrent All3channelsdisabled(4) 0.5 μA Turn-ontimedelay(tON) Timereaches50%offinalvalueafter 5 μs I2Ccontroliscompleted Turn-ontimedelay(tOFF) 2 μs DIGITALCHARACTERISTICS High-levelinputvoltagexxx 3.5 V Typ VIH Low-levelinputvoltagexxx 1.5 V Typ VIL (3) Duetosharingofinternalbiascircuitry,thequiescentcurrent(withallchannelsoperating)islessthanthesingleindividualchannel quiescentcurrentsaddedtogether. (4) NotethattheI2CcircuitryisstillactivewhileinDisablemode.ThecurrentshowniswhilethereisnoactivitywiththedeviceI2Ccircuitry. 6 SubmitDocumentationFeedback Copyright©2005–2011,TexasInstrumentsIncorporated ProductFolderLink(s):THS7303 THS7303 www.ti.com SLOS479B–OCTOBER2005–REVISEDMARCH2011 TIMING REQUIREMENTS(1) AtV =2.7Vto5V,unlessotherwisenoted. S+ STANDARDMODE FASTMODE PARAMETER MIN MAX MIN MAX UNIT f Clockfrequency,SCL 0 100 0 400 kHz SCL t Pulseduration,SCLhigh 4 0.6 μs w(H) t Pulseduration,SCLlow 4.7 1.3 μs w(L) t Risetime,SCLandSDA 1000 300 ns r t Falltime,SCLandSDA 300 300 ns f t Setuptime,SDAtoSCL 250 100 ns su(1) t Holdtime,SCLtoSDA 0 0 ns h(1) t Busfreetimebetweenstopandstartconditions 4.7 1.3 μs (buf) t Setuptime,SCLtostartcondition 4.7 0.6 μs su(2) t Holdtime,startconditiontoSCL 4 0.6 μs h(2) t Setuptime,SCLtostopcondition 4 0.6 μs su(3) C Capacitiveloadforeachbusline 400 400 pF b (1) TheTHS7303I2Caddress=01011(A1)(A0)(R/W).SeetheApplicationInformationsectionformoreinformation. tw(H) tw(L) tr tf SCL tsu(1) th(1) SDA Figure2. SCLandSDATiming SCL tsu(2) th(2) tsu(3) t(buf) SDA Start Condition Stop Condition Figure3. StartandStopConditions Copyright©2005–2011,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLink(s):THS7303 THS7303 SLOS479B–OCTOBER2005–REVISEDMARCH2011 www.ti.com FUNCTIONAL BLOCK DIAGRAM Bypass Channel1 Input A 2:1 X1 + LPF Channel1 Channel2 9 / 16 / - Output Input A AC 35-MHz 675W DC Sync Channel1 Channel3 135 mV DC TIP Input A AC- Clamp MUTE 1 kW 878W 150W SAG BIAS Bypass 2:1 X1 + LPF Channel2 9 / 16 / - Output AC 35-MHz 675W DC Sync Channel2 135 mV DC TIP Channel1 Clamp MUTE 1 kW 878W 150W SAG Input B AC- BIAS Bypass Channel2 Input B 2:1 X1 + Channel3 LPF Channel3 Input B 9 / 16 / - Output AC 35-MHz 675W DC Sync 135 mV DC TIP Channel3 Clamp MUTE 1 kW 878W 150W SAG AC- BIAS I2C- I2C- SDA SCL A1 A0 Vs+ NOTE: TheI2CaddressoftheTHS7303is01011(A1)(A0)(R/W). 8 SubmitDocumentationFeedback Copyright©2005–2011,TexasInstrumentsIncorporated ProductFolderLink(s):THS7303 THS7303 www.ti.com SLOS479B–OCTOBER2005–REVISEDMARCH2011 PIN CONFIGURATION PWPACKAGE TSSOP-20 (TOPVIEW) PINDESCRIPTIONS PIN NAME NO. DESCRIPTION N/C 1,20 Nointernalconnection.Itisrecommended,butnotrequired,toconnectthesepinstoGND. CH.1–INPUTA 2 Videoinputchannel1,inputA CH.2–INPUTA 3 Videoinputchannel2,inputA CH.3–INPUTA 4 Videoinputchannel3,inputA CH.1–INPUTB 5 Videoinputchannel1,inputB CH.2–INPUTB 6 Videoinputchannel2,inputB CH.3–INPUTB 7 Videoinputchannel3,inputB I2C-A1 8 I2CslaveaddresscontrolbitA1.ConnecttoV foralogic1presetvalueorGNDforalogic0presetvalue. S+ I2C-A0 9 I2CslaveaddresscontrolbitA0.ConnecttoV foralogic1presetvalueorGNDforalogic0presetvalue. S+ GND 10 Groundreferencepinforallinternalcircuitry. V 11 Positivepower-supplyinputpin.Connectto2.7Vto5V. S+ SerialdatalineoftheI2Cbus.Pull-upresistorshouldhaveaminimumvalueof2kΩandamaximum SDA 12 valueof19kΩ.PulluptoV . S+ I2Cbusclockline.Pull-upresistorshouldhaveaminimumvalueof2kΩandamaximumvalueof19kΩ. SCL 13 PulluptoV . S+ CH.3–SAG 14 Videooutputchannel3SAGcorrectionpin.IfSAGisnotused,connectdirectlytoCH.3–OUTPUTpin. CH.3–OUTPUT 15 Videooutputchannel3fromeitherCH.3–INPUTAorCH.3–INPUTB. CH.2–SAG 16 Videooutputchannel2SAGcorrectionpin.IfSAGisnotused,connectdirectlytoCH.2–OUTPUTpin. CH.2–OUTPUT 17 Videooutputchannel2fromeitherCH.2–INPUTAorCH.2–INPUTB. CH.1–SAG 18 Videooutputchannel1SAGcorrectionpin.IfSAGisnotused,connectdirectlytoCH.1–OUTPUTpin. CH.1–OUTPUT 19 Videooutputchannel1fromeitherCH.1–INPUTAorCH.1–INPUTB. Copyright©2005–2011,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLink(s):THS7303 THS7303 SLOS479B–OCTOBER2005–REVISEDMARCH2011 www.ti.com TYPICAL CHARACTERISTICS R =150ΩtoGNDanddc-coupledinputandoutput,unlessotherwisenoted. L TOTALQUIESCENTCURRENT INPUTBIASCURRENT vs vs SUPPLYVOLTAGE SUPPLYVOLTAGE 20 9 All Channels ON STC − High Bias 8 70°C mA 19 A 7 STC − Mid Bias − m− 6 Quiescent Current 1178 25°C 85°C 0°C nput Bias Current 2345 STC − Low Bias TA = 25°C I−q 16 −40°C I− IIB 1 0 DC − Input Bias −1 15 −2 2.6 3 3.4 3.8 4.2 4.6 5 2.6 3 3.4 3.8 4.2 4.6 5 VS−Supply Voltage−V VS − Supply Voltage − V Figure4. Figure5. MUTEFEEDTHROUGH CROSSTALK vs vs FREQUENCY FREQUENCY −40 −20 VS= 3.3 V and 5 V −50 VRSL== 135.30 VW a||n 1d3 5 p VF −30 WCRreoofressrstr teCadlak stoe Input Filter = Bypass RL= 150W Filter = 35 MHz B −40 d − −60 Filter = 35 MHz ugh Filter = 16 MHz dB −50 Filter = 16 MHz e Feed Thro −−8700 Filter = 9 MHz Crosstalk− −60 Filter = 9 MHz Mut −70 −90 −80 Filter = Bypass −100 −90 0.1 1 10 100 1000 0.1 1 10 100 1000 f−Frequency−MHz f−Frequency−MHz Figure6. Figure7. 10 SubmitDocumentationFeedback Copyright©2005–2011,TexasInstrumentsIncorporated ProductFolderLink(s):THS7303