data sheet - jameco electronics · pdf file• 1.5w typical power dissipation ... -...

14
Features Compliant to XFP MSA Compliant to IEEE 802.3ae 10GBASE-LR for 10GbE, 10.3125 Gb/s Compliant to 10GFC 1310 nm Serial PMD, type 1200- SM-LL-L, 10.51875 Gb/s Compatible with 11.3G operation for FEC functionality AvagoTechnologies’ uncooled 1310 nm DFB Laser and PIN Photodiode Compliant XFI 10G Serial electrical interface LC Duplex optical connector interface conforming to ANSI TIA/EIA604-10 (FOCIS 10) 1.5W typical power dissipation Superior Thermal and EMI integrity performance to support high port densities Customizable clip-on heatsink to support a variety of line card environments -5 to +70 °C case operating temperature range Capable of extended temperature (-10C to +85C case) operation ** Hardware pins are available for the following control signals: - Transmitter disable - Module power down/RESET - Receiver loss of signal - Module not ready - Programmable interrupt 2-wire serial management interface provides real time monitors of: - Transmitted Optical Power - Received Optical Power - Laser Bias Current - Module Temperature Link Lengths up to 10 km with 9 µm fiber IEC 60825-1 Class 1/CDRH Class 1 laser eye safety. ** Note: Long term reliability at elevated temperatures is not guaranteed. Description The 1310 nm XFP transceiver is a high performance, cost effective module for serial optical data communications applications specified for signal rates of 10.30 Gb/s to 10.52 Gb/s. It is compliant to XFP MSA Rev 4.5. The module is designed for single mode fiber and operates at a nominal wavelength of 1310 nm. The transmitter section incorpo- rates Avago Technologies’ uncooled directly modulated 1310 nm distributed feedback laser (DFB). The receiver section uses Avago Technologies’ MOVPE grown planar SEDET PIN photodetector for low dark current and excel- lent responsivity. Integrated Tx and Rx signal condition- ers provide high jitter-tolerance for full XFI compliance. The internally ac coupled high speed serial I/O simplifies interfacing to external circuitry. The electrical interface is made using an industry standard 0.8 mm pitch 30-pin right angle connector. Optical connection is made via the duplex LC connector. Applications Fiber Channel Switches Host Bus Adapter Cards Mass Storage System and Server I/O Ethernet Switches Core Routers HFCT - 721 XPD 10GbE/10GFC 1310 nm XFP 10 Gbit/s Optical Transceiver Data Sheet

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Page 1: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Features • ComplianttoXFPMSA• Compliant to IEEE 802.3ae 10GBASE-LR for 10GbE,

10.3125Gb/s• Compliantto10GFC1310nmSerialPMD,type1200-

SM-LL-L,10.51875Gb/s• Compatiblewith11.3GoperationforFECfunctionality• AvagoTechnologies’uncooled1310nmDFBLaserand

PINPhotodiode• CompliantXFI10GSerialelectricalinterface• LCDuplexopticalconnectorinterfaceconformingto

ANSITIA/EIA604-10(FOCIS10)• 1.5Wtypicalpowerdissipation• Superior Thermal and EMI integrity performance to

supporthighportdensities• Customizableclip-onheatsinktosupportavarietyof

linecardenvironments• -5to+70°Ccaseoperatingtemperaturerange• Capableofextendedtemperature(-10Cto+85Ccase)

operation**• Hardwarepinsareavailableforthefollowingcontrol

signals: -Transmitterdisable -Modulepowerdown/RESET -Receiverlossofsignal -Modulenotready -Programmableinterrupt• 2-wireserialmanagementinterfaceprovidesrealtime

monitorsof: -TransmittedOpticalPower -ReceivedOpticalPower -LaserBiasCurrent -ModuleTemperature• LinkLengthsupto10kmwith9µmfiber• IEC60825-1Class1/CDRHClass1lasereyesafety.

**Note:Longtermreliabilityatelevatedtemperaturesisnotguaranteed.

DescriptionThe1310nmXFPtransceiverisahighperformance,costeffectivemoduleforserialopticaldatacommunicationsapplicationsspecifiedforsignalratesof10.30Gb/sto10.52Gb/s.It iscomplianttoXFPMSARev4.5.Themoduleisdesignedforsinglemodefiberandoperatesatanominalwavelengthof1310nm.Thetransmittersectionincorpo-ratesAvagoTechnologies’uncooleddirectlymodulated1310 nm distributed feedback laser (DFB).The receiversection uses AvagoTechnologies’ MOVPE grown planarSEDETPINphotodetectorforlowdarkcurrentandexcel-lentresponsivity.IntegratedTxandRxsignalcondition-ersprovidehigh jitter-tolerancefor fullXFIcompliance.TheinternallyaccoupledhighspeedserialI/Osimplifiesinterfacing to external circuitry.The electrical interfaceismadeusinganindustrystandard0.8mmpitch30-pinrightangleconnector.OpticalconnectionismadeviatheduplexLCconnector.

Applications• FiberChannelSwitches• HostBusAdapterCards• MassStorageSystemandServerI/O• EthernetSwitches• CoreRouters

HFCT - 721 XPD10GbE/10GFC 1310 nm XFP 10 Gbit/s Optical Transceiver

Data Sheet

Page 2: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

The product also offers digital diagnostics using the 2-wireserialinterfacedefinedintheXFPMSA.Theproductprovidesrealtimetemperature(moduleandlaser),supplyvoltage,laserbiascurrent,laseraverageoutputpowerandreceivedinputpower.Thedigitaldiagnosticinterfacealsoaddstheabilitytodisablethetransmitter(TX_DIS),powerdownthemodule,monitorformodulefaultsandmonitorforReceiverLossofSignal(RX_LOS).Transmitterdisable,interrupt,powerdown/reset, receiver lossofsignalandmodulenotreadyarealsohardwiredpinsonthe30-pinrightangleconnector.

Installation

TheHFCT-721XPDcanbeinstalledinanyXFPportregard-lessofhostequipmentoperatingstatus.TheHFCT-721XPDis hot-pluggable, allowing the module to be installedwhilethehostsystemisoperatingandon-line.Theclip-onheatsinkisdesignedtoclipontotheXFPcagewithoutamodulepresent.

Upon insertion, the transceiver housing makes initialcontactwiththehostboardXFPcage,mitigatingpotentialdamageduetoElectro-StaticDischarge(ESD).Oncefullyinserted into the XFP cage, the top surface of the XFPmodulemakescontactwiththeheatsinkthroughacutoutinthetopofthecageensuringaneffectivethermalpathformoduleheat.

Functional Description

Transmitter Section

Thetransmittersectionincludesa1310nmDFB(Distrib-uted Feedback Laser) light source, a transmitter drivercircuit and a signal conditioner circuit on the TX datainputs.(seeFigure1)Opticalconnectiontothetransmit-terisprovidedviaaLCconnector.TheopticaloutputiscontrolledbyacustomICthatdetectsthelaseroutputviathemonitorphotodiode.ThisICprovidesbothdcandaccurrentdrivetothelasertoensurecorrectmodulation,eyediagramandextinctionratioovertemperature,supplyvoltageandoperatinglife.

TX_DIS

Assertingpin5,TX_DIS,willdisablethetransmitteropticaloutput.Thetransmitteroutputcanalsobedisabledandmonitoredviathetwo-wireserialinterface.

Eye Safety Circuit

Undernormaloperatingconditions laserpowerwillbemaintained below Class 1 eye-safety limits. Should acatastrophiclaserfaultoccurandopticalpowerbecomeuncontrolled, the micro-controller will detect the fault,shutdownthelaser,powerdownthemoduleandassertthehard-wiredMOD_NRflag.TheTX_FAULToutputinthe2-wireserialinterfacewillalsobeasserted.

Figure 1. Transceiver Functional Diagram

PIN

Laser RFdriver

CWdriver

Opt

ical

rece

ptac

les

Elec

tric

al c

onne

ctor

Mon. PIN

ROSA

TOSAEEPROM

Microcontroller

A/D

ESA

Heat sink

Ana

log

sign

al

cond

ition

ers

Main housing

Analog bus

Digital 10Gb/s electricalI/O

Digital lowspeed bus orsignal

Analog signal

Powersupply

control

TIATIA

+.VSignal

Conditioner

Signal

Conditioner

Page 3: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Receiver Section

ThereceiversectionincludesaPINdetectorwithamplifica-tionquantizationsignalconditionercircuits.(seeFigure1)OpticalconnectiontothereceiverisprovidedviaaLCopticalconnector.

RX_LOS

The receiver section contains a loss of signal (RX_LOS)circuit to indicate when the optical input signal powerisinsufficientforreliablesignaldetection.Ahighsignalindicateslossofmodulatedsignal,indicatinglinkfailuresuchasabrokenfiberornonfunctionalremotetransmit-ter.RX_LOScanalsobemonitoredviathetwo-wireserialinterface(byte110,bit1).

XFP Module

Host Board

OptionalHost +5 V

4.7 µH VCC5

0.1 µF 22 µF 0.1 µF

Host +3.3 V 4.7 µH VCC3

0.1 µF 22 µF 0.1 µF

OptionalHost +1.8 V

4.7 µH VCC2

0.1 µF 22 µF 0.1 µF

OptionalHost -5.2 V

4.7 µH VEE5

0.1 µF 22 µF 0.1 µF

GND

XFP

Con

nect

or

Figure 2. MSA recommended power supply filter

Electrical Pinout

GND

RD-

RD+

GND

VCC2

P_DOWN/RST

VCC2

GND

REFCLK+

REFCLK-

GND

GND

TD-

TD+

GND

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

GND

RX_LOS

MOD_NR

MOD_ABS

SDA

SCL

VCC3

VCC3

GND

VCC5

TX_DIS

INTERRUPT

MOD_DESEL

VEE5

GND

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

TOWARDASIC

TOWARDBEZEL

Figure 4. Host PCB XFP Pinout Top View

Functional Data I/O

AvagoTechnologies’HFCT-721XPDfiber-optictransceiverisdesignedtoaccept industrystandardelectrical inputdifferentialsignals.Thetransceiverprovidesac-coupled,internally terminated data input and output interfaces.Biasresistorsandcouplingcapacitorshavebeenincludedwithinthemoduletoreducethenumberofcomponentsrequiredonthecustomer’sboard.

Page 4: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Table 1. Electrical Pin Definitions

Pin Name Logic Function/Description Notes

1 GND ModuleGround 1

2 VEE5 -5.2Vpowersupply.Notinternallyconnected.

3 Mod-Desel LVTTL-I ModuleDe-select;Whenheldlowallowsthemoduletorespondto2-wireSerialinterfacecommands

4 Interrupt LVTTL-O Interrupt;Indicatespresenceofanimportantconditionwhichcanbereadovertheserial2-wireinterface 2

5 TX_DIS LVTTL-I TransmitterDisable;TransmitterLaserSourceTurnedOff

6 VCC5 5Vpowersupply.Notinternallyconnected.

7 GND ModuleGround 1

8 VCC3 +3.3VPowerSupply

9 VCC3 +3.3VPowerSupply

10 SCL LVTTL-I TwoWireInterfaceClock 2

11 SDA LVTTL-I/O TwoWireInterfaceDataLine 2

12 Mod_Abs LVTTL-O LVTTL-OMod_AbsIndicatesModuleisnotpresent.GroundedintheModule 2

13 Mod_NR LVTTL-O ModuleNotReady;IndicatingModuleOperationalFault 2

14 RX_LOS LVTTL-O ReceiverLossOfSignalIndicator 2

15 GND ModuleGround 1

16 GND ModuleGround 1

17 RD- CML-O ReceiverInvertedDataOutput

18 RD+ CML-O ReceiverNon-InvertedDataOutput

19 GND ModuleGround 1

20 VCC2 +1.8VPowerSupply.Notinternallyconnected.

21 P_Down/RST LVTTL-IPowerdown:Whenhigh,themoduleisputintoalowerpowermode.Serialinterfaceisfunctionalinthelowpowermode.Reset:ThefallingedgeinitiatesacompleteresetofthemoduleincludingtheserialInterface,equivalenttoapowercycle.

22 VCC2 +1.8VPowerSupply.Notinternallyconnected. 1

23 GND ModuleGround

24 RefCLK+ PECL-I ReferenceClockNon-InvertedInput,accoupledonthehostboard 3

25 RefCLK- PECL-I ReferenceClockInvertedInput,accoupledonthehostboard 3

26 GND ModuleGround 1,3

27 GND ModuleGround 1

28 TD- CML-I TransmitterInvertedDataInput

29 TD+ CML-I TransmitterNon-InvertedDataInput

30 GND ModuleGround 1

Notes:1. ModulegroundpinsGndareisolatedfromthemodulecaseandchassisgroundwithinthemodule.2. OpenCollectorshouldbepulledupwith4.7K-10Kohmstoavoltagebetween3.15Vand3.6Vonthehostboard.3. RefCLK+/-areinternallyterminated(50Ω)

Page 5: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Absolute Maximum Ratings

Parameter Symbol Minimum Typical Maximum Unit Notes

StorageTemperature(non-operating) TS -40 +85 °C 1,2

AmbientOperatingTemperature TA -40 +85 °C 1,2

RelativeHumidity RH 10 90 % 1

SupplyVoltage VCC3 0 3.6 V 1,2

LowSpeedInputVoltage VIN -0.5 VCC+0.5 V 1

Parameter Symbol Minimum Typical Maximum Unit Notes

PowerSupplyNoiseRejection(peak-peak)under1MHz

PSNR 2%ofVCC mV 5

PowerSupplyNoiseRejection(peak-peak)1MHzto10MHz

PSNR 3%ofVCC mV 5

Modulesupplycurrent ICC 680 mA

PowerDissipation PDISS 1.5 2100 mW

Low Speed Outputs:MOD_NR,RX_LOS,MOD_ABS,INTERRUPT

VOHVOL

Host_VCC-0.50.0 0.01

Host_VCC+0.30.4

VV

67

Low Speed Inputs:TX_DIS,MOD_DESEL,P_DOWN/RST

VIHVIL

2.0-0.3

VCC3+0.30.8

VV

89

Parameter Symbol Minimum Typical Maximum Unit Notes

CaseOperatingTemperature TC -5 +70 °C 3

SupplyVoltage VCC3 3.135 3.465 V 4,5

DataRate 9.953 10.52 Gb/s 4

OpticalInputPowerMax Pinmax 6 dBm 1,2

Notes:1. AbsoluteMaximumRatingsarethosevaluesbeyondwhichdamagetothedevicemayoccuriftheselimitsareexceededforotherthanashort

periodoftime.SeeReliabilityDataSheetforspecificreliabilityperformance.2. BetweenAbsoluteMaximumRatingsandtheRecommendedOperatingConditionsfunctionalperformanceisnotintended,devicereliability

isnotimplied,anddamagetothedevicemayoccuroveranextendedperiodoftime.3. TheAmbientOperatingTemperaturelimitationsarebasedontheCaseOperatingTemperaturelimitationsandaresubjecttothehostsystem

thermaldesign.4. RecommendedOperatingConditionsarethosevaluesforwhichfunctionalperformanceanddevicereliabilityisimplied5. VccconditionappliestosupplyvoltageattheXFPmodule6. FilterperXFPspecificationisrequiredonthehostboard.7. 4.7kto10kW resistorpull-uptohost_VCC,measuredatthehostsideofconnector.IOH(max)=-2mA.8. 4.7kto10kW resistorpull-uptohost_VCC,measuredatthehostsideofconnector.IOL(max)=2mA.9. 4.7kto10kW resistorpull-uptohost_VCC,measuredatthehostsideofconnector.IOL(max)=10µA.10.4.7kto10kW resistorpull-uptohost_VCC,measuredatthehostsideofconnector.IIH(max)=-10µA.

Transceiver Electrical Characteristics(TC=-5°Cto+70°C,VCC3=3.3V±5%)

Recommended Operating Conditions

Page 6: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Transmitter Electrical Input Characteristics(TC=-5°Cto+70°C,VCC3=3.3V±5%)

Parameter Symbol Minimum Typical Maximum Unit Notes

DifferentialInputImpedance Zd 100 W

TerminationMismatch DZM 5 %

DifferentialInputAmplitude DVQDO 120 820 mV peaktopeak(1)

DifferentialInputReturnLoss SDD11 20 dB 0.05to0.1GHz

DifferentialInputReturnLoss SDD11 8 dB 0.1to5.5GHz

DifferentialInputReturnLoss SDD11 8-20.66log10(f/5.5)finGHz

dB 5.5-12GHz

CommonModeInputReturnLoss SCC11 3 dB 0.1to15GHz

DifferentialtoCommonModeConversion SCD11 -10 dB 0.1to15GHz

JitterandEyeMask XFPMSACompliant

Parameter Symbol Minimum Typical Maximum Unit Notes

DifferentialInputImpedance Zd 100 W

TerminationMismatch DZM 5 %

DifferentialOutputAmplitude 340 850 mV peaktopeak(1)

DCCommonModePotential Vcm 0 3.6 V

OutputACCommonModeVoltage 15 mV RMS

OutputRise/Falltime(20%to80%) tRH,tFH 24 ps

Commonmodeoutputreturnloss SCC22 3 0.1to15GHz

Differentialoutputreturnloss SDD22 20 dB 0.05to0.1GHz

Differentialoutputreturnloss SDD22 8 dB 0.1to5.5GHz

Differentialoutputreturnloss SDD22 8-20.66log10(f/5.5)finGHz

dB 5.5-12GHz

JitterandEyeMask XFPMSACompliant

Receiver Electrical Output Characteristics

Note:1. ThedifferentialinputandoutputamplitudesareperXFPMSAmaskatpointsB’andC’.

kotowskis
Note
Ohms
kotowskis
Note
Ohms
Page 7: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Transmitter Optical Characteristics 10 GbE/10GFC(TC=-5°Cto+70°C,VCC3=3.3V±5%)

Parameter Symbol Minimum Typical Maximum Unit Notes

OpticalOutputPower Pout -5.2 dBmOMA 1,2

AverageOpticalOutputPower Pout -8.2 0.5 dBm 1,2,3

ExtinctionRatio ER 3.5 dB 1,2

SpectralWidth-rms s,rms 0.2 nmRMS 3

CenterWavelength λC 1260 1310 1355 nm

Transmitteranddispersionpenalty TDP 3.2 dB 1,3

Sidemodesuppressionratio 30 dB 1

Opticaloutputpower(min)inOMA-TDP -6.2 dBmOMA 1,3

RIN12(OMA) RIN -128 dB/Hz 1

OpticalEyeMask CompliantwithIEEE802.3ae10GBASE-LXFPMSA

Parameter Symbol Minimum Typical Maximum Unit Notes

AverageReceivepower -14.4 0.5 dBmmean 1

Stressedreceiversensitivity -10.3 dBmOMA 1

Receiversensitivity PIN -12.6 dBmOMA 3

MaxReceiverReflectance -12 dB 1

Wavelength λC 1260 1310 1355 nm

Notes:1. 10GFC1200-SM-LL-L/IEEE802.3ae10BASE-LRcompliant2. Theseparametersareinterrelated:seeIEEE802.3ae3. Forinformationonly

Receiver Optical Characteristics 10 GbE/10GFC(TC=-5°Cto+70°C,VCC3=3.3V±5%)

Page 8: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Transceiver Timing Characteristics(TC=-5°Cto+70°C,VCC3=3.3V±5%)

Parameter Symbol Minimum Typical Maximum Unit Notes

TX_DISAssertTime t_off 10 µs TimefromrisingedgeofTX_DIStowhentheopticaloutputfallsbelow10%ofnominal.

TX_DISNegateTime t_on 2 ms TimefromfallingedgeofTX_DIStowhenthemodulatedopticaloutputrisesabove90%ofnominal.

Timetoinitialize t_init 300 ms Frompoweronorhotplugaftermeetingpowersupplyspecs

Interruptassertdelay Interrupt_on 200 ms Fromoccurrenceoftheconditiontriggeringinterrupt

Interruptnegatedelay Interrupt_off 500 us Fromclearonreadinterruptflags

P_Down/RSTassertdelay

P_Down/RST_on

100 us FromPowerdowninitiation

P-Downnegatedelay P_Down/RST_off

300 ms Maxdelayfromnegatetocompletionofpowerupandreset

Mod_NRassertdelay Mod_nr_on 1 ms FromOccurrenceoffaulttoassertionofTX_NR

Mod_NRnegatedelay Mod_nr_off 1 ms FromOccurrenceofsignaltonegationofTX_NR

Mod_DeSelasserttime T_Mod_DeSel 2 ms MaximumdelaybetweenassertionofMod_DeSelandendofmoduleresponseto2-wireinterfacecom-munications

Mod_DeSelde-asserttime

T_Mod_Sel 2 ms Maximumdelaybetweende-assertionofMod_DeSelandpropermoduleresponseto2-wireinterfacecommunications

P_Downresettime t_reset 10 µs MinlengthofP-Downasserttoinitialreset

RX_LOSAssertdelay T_loss_on 100 µs FromOccurrenceoflossofsignaltoassertionofRX_LOS

RX_LOSnegatedelay T_loss_off 2.3 100 µs FromOccurrenceofpresenceofsignaltonegationofRX_LOS

SerialIDClockRate f_serial_clock 0 400 kHz

Page 9: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Digital Diagnostic Interface and Serial Identification

The2-wireserialinterfaceisexplicitlydefinedintheXFPMSARev4.0.2-wiretimingspecificationsandthestructureofthememorymapareperXFPMSARev2.0.Thenormal256ByteI2Caddressspaceisdividedintolowerandupperblocksof128Bytes.Thelowerblockof128BytesisalwaysdirectlyavailableandisusedfordiagnosticinformationprovidingtheopportunityforPredictiveFailureIdentifica-tion,CompliancePrediction,FaultIsolationandCompo-nentMonitoring.TheupperaddressspacetablesareusedforlessfrequentlyaccessedfunctionssuchasserialID,userwriteableEEPROM,reservedEEPROManddiagnosticsandcontrolspacesforfuturestandardsdefinition,aswellasAvagoTechnologies-specificfunctions.

Predictive Failure Identification

The diagnostic information allows the host system toidentifypotentiallinkproblems. Onceidentified,a“failover”techniquecanbeusedtoisolateandreplacesuspectdevicesbeforesystemuptimeisimpacted.

Compliance Prediction

The real-time diagnostic parameters can be monitoredtoalertthesystemwhenoperatinglimitsareexceededandcompliancecannotbeensured.Asanexample,therealtimeaveragereceiveopticalpowercanbeusedtoassess the compliance of the cable plant and remotetransmitter.

Fault Isolation

Thediagnosticinformationcanallowthehosttopinpointthelocationofalinkproblemandacceleratesystemser-vicingandminimizedowntime.

Component Monitoring

Aspartofhostsystemqualificationandverification,realtimetransceiverdiagnosticinformationcanbecombinedwithsystemlevelmonitoringtoensureperformanceandoperatingenvironmentaremeetingapplicationrequire-ments.

Transceiver Internal Temperature

TemperatureismeasuredontheHFCT-721XPDusingsens-ingcircuitrymountedontheinternalPCB.ThemeasuredtemperaturewillgenerallybecoolerthanlaserjunctionandwarmerthanXFPcaseandcanbeindirectlycorrelatedtoXFPcaseorlaserjunctiontemperatureusingthermalresistanceandcapacitancemodeling.Thismeasurementcanbeusedtoobservedriftsinthermaloperatingpointortodetectextremetemperaturefluctuationssuchasafailureinthesystemthermalcontrol.Formoreinforma-tiononcorrelatinginternaltemperaturetocaseorlaserjunctioncontactAvagoTechnologies.

Transmitter Laser dc Bias Current

Laserbiascurrentismeasuredusingsensingcircuitrylo-catedonthetransmitterlaserdriverIC.Normalvariationsin laser bias current are expected to accommodate theimpactofchangingtransceivertemperatureandsupplyvoltageoperatingpoints.TheHFCT-721XPDusesaclosedlooplaserbiasfeedbackcircuittomaintainconstantopticalpower.Thiscircuitcompensatesfornormallaserparametricvariationsinquantumefficiency,forwardvoltageandlasingthresholdduetochangingtransceiveroperatingpoints.

Transmitted Average Optical Output Power

VariationsinaverageopticalpowerarenotexpectedundernormaloperationbecausetheHFCT-721XPDusesaclosedlooplaserbiasfeedbackcircuittomaintainconstantopticalpower.Thiscircuitcompensatesfornormallaserparametricvariationsduetochangingtransceiveroperatingpoints.Onlyunderextremelaserbiasconditionswillsignificantdriftingintransmittedaverageopticalpowerbeobserv-able. Therefore it is recommended Tx average opticalpowerbeusedforfault isolation,ratherthanpredictivefailurepurposes.

Received Average Optical Input Power

Receivedaverageopticalpowermeasurementsareavalu-ableassetforinstallerstoverifycableplantcompliance.Driftsinaveragepowercanbeobservedfromthecableplant and remote transmitter for potential predictivefailureuse.Receivedaverageopticalpowercanbeusedforfaultisolation.

Page 10: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

10

Figure 5b. Module Drawing

Mechanical Specifications

Package Dimensions

Figure 5a. Module Drawing

Page 11: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

11

Figure 6. XFP host board mechanical layout

Page 12: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

1

Figure 7. XFP Assembly Drawing

Clip

Host Board

Heat Sink

Cage Assembly

Module

Bezel

EMI Gasket(not shown)

Connector

Page 13: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

1

Application Support

AnEvaluationKitandReferenceDesignsareavailabletoassistinevaluationoftheHFCT-721XPD.Pleasecontactyour localFieldSalesrepresentativeforavailabilityandorderingdetails.

Regulatory Compliance

ThetransceiverRegulatoryComplianceperformance isprovidedinTable2asafigureofmerittoassistthede-signer.Theoverallequipmentdesignwilldeterminethecertificationlevel.

Electrostatic Discharge (ESD)

TherearetwoconditionsinwhichimmunitytoESDdam-ageisimportant.Table13documentstheESDimmunitytobothoftheseconditions.

Regulatory Compliance

Thefirstcondition isstaticdischargetothetransceiverduringhandlingsuchaswhenthetransceiverisinsertedintothetransceiverport.Toprotectthetransceiver,itisimportanttousenormalESDhandlingprecautionsinclud-ingtheuseofgroundedwriststraps,workbenches,andfloor mats in ESD controlled areas. The ESD sensitivityoftheHFCT-721XPDiscompatiblewithtypicalindustryproductionenvironments.

Thesecondconditionisstaticdischargetotheexteriorofthehostequipmentchassisafter installation. Totheextent that the duplex LC optical interface is exposedtotheoutsideofthehostequipmentchassis,itmaybesubjecttosystem-levelESDrequirements.

TheESDperformanceoftheHFCT-721XPDexceedstypicalindustrystandards.

Feature Test Method Performance

ElectrostaticDischarge(ESD)totheexterioroftheXFPmodule

JEDECJESD22-A114-B 500Voltstothehighspeedpins,2000Voltstothelowspeedpins

ElectrostaticDischarge(ESD)totheDuplexLCReceptacle

VariationofIEC61000-4-2 Typically,nodamageoccurswith25kVwhentheduplexLCconnectorreceptacleiscontactedbyaHumanBodyModelprobe.

ElectrostaticDischarge(ESD)totheOpticalConnector

GR1089 10contactsof8KVontheelectricalfaceplatewithdeviceinsertedintoapanel.

ElectrostaticDischarge(ESD)totheOpticalConnector

VariationofIEC801-2 Airdischargeof15kV(min)contacttoconnectorw/odamage

ElectromagneticInterference(EMI)

FCCClassBCENELECEN55022ClassB(CISPR22A)VCCIClass1

Systemmarginsaredependentoncustomerboardandchassisdesign.

Immunity VariationofIEC61000-4-3 Lessthan0.5dBofRxsensitivitydegradationandlessthan10%marginreductionofTxmaskat10V/m,10MHZto1GHzw/ochassisenclosure

LaserEyeSafetyandEquipmentTypeTesting

USFDACDRHAELClass1US21CFR,SubchapterJperParagraphs1002.10and1002.12.

(IEC)EN60825-1:1994+A11+A2(IEC)EN60825-2:1994+A1(IEC)EN60950:1992+A1+A2+A3+A4+A11

CDRHcertification#TBDTUVfile#933/510312/02

ComponentRecognition UnderwritersLaboratoriesandCanadianStandardsAssociationJointComponentRecognitionforInformationTechnologyEquipmentIncludingElectricalBusinessEquipment

ULcertificatenumber05012004-E173874

Page 14: Data Sheet - Jameco Electronics · PDF file• 1.5W typical power dissipation ... - Transmitter disable ... circuit and a signal conditioner circuit on the TX data inputs

Immunity

Thetransceivershaveashieldeddesigntoprovideexcellentimmunitytoradio-frequencyelectromagneticfieldswhichmaybepresentinsomeoperatingenvironments.

Electromagnetic Interference (EMI)

Most equipment designs using the HFCT-721XPD aresubject to the requirements of the FCC in the UnitedStates,CENELECEN55022(CISPR22)inEuropeandVCCIinJapan.ThemetalhousingandshieldeddesignoftheHFCT-721XPDminimizesEMIandprovidesexcellentEMIperformance.

Eye Safety

TheHFCT-721XPDtransceiversprovideClass1eyesafetybydesign.AvagoTechnologieshastestedthetransceiverdesignforregulatorycompliance,undernormaloperat-ing conditions and under single fault conditions. SeeTable2.

Flammability

TheHFCT-721XPDiscomplianttoUL94V-0.

Caution

The HFCT-721XPD contains no user serviceable parts.Tampering with or modifying the performance of theHFCT-721XPDwillresultinvoidedproductwarranty. ItmayalsoresultinimproperoperationoftheHFCT-721XPDcircuitry,andpossibleoverstressofthelasersource.Devicedegradation or product failure may result. Connectionof theHFCT-721XPDtoanon-approvedopticalsource,operatingabovetherecommendedabsolutemaximumconditions may be considered an act of modifying ormanufacturingalaserproduct.Theperson(s)performingsuchanactisrequiredbylawtorecertifyandreidentifythe laser product under the provisions of U.S. 21 CFR(SubchapterJ)andtheTUV.

Ordering Information

Pleasecontactyour localfieldsalesengineeroroneofAvagoTechnologiesfranchiseddistributorsfororderinginformation.Fortechnicalinformation,pleasevisitAvagoTechnologies’WEBpageatwww.avagotech.comorcontactAvagoTechnologiesSemiconductorProductsCustomerResponseCenterat1-800-235-0312.Forinformationre-latedtoXFPMSAdocumentationvisitwww.xfpmsa.org

For product information and a complete list of distributors, please go to our web site: www.avagotech.com

Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies, Pte. in the United States and other countries.Data subject to change. Copyright © 2006 Avago Technologies Pte. All rights reserved. Obsoletes 5989-2468EN AV01-0237EN - June 15, 2006