Data Sheet. HFCT-5911ATLZ Single Mode Laser Transceivers for Gigabit Ethernet and iscsi Applications at 1.25 Gb/s. Description. Features.

Transcription

1 HFCT-5911ATLZ Single Mde Laser Transceivers fr Gigabit Ethernet and iscsi Applicatins at 1.25 Gb/s Data Sheet Descriptin The HFCT-5911ATLZ transceiver is a high perfrmance, cst effective mdule fr serial ptical data cmmunicatins applicatins perating at 1.25 Gb/s. This mdule is designed fr single mde fiber and perates at a nminal wavelength f 1310 nm. It incrprates high perfrmance, reliable, lng wavelength ptical devices and prven circuit technlgy t give lng life and cnsistent service. The transmitter sectin incrprates a 1310 nm Fabry Pert (FP) laser. The transmitter has full IEC 825 and CDRH Class 1 eye safety. The receiver sectin uses an MOVPE grwn planar SEDET PIN pht detectr fr lw dark current and excellent respnsivity. The transceiver is supplied in the industry standard 2 x 5 DIP style package with the LC fiber cnnectr interface and is ftprint cmpatible with SFF Multi Surce Agreement (MSA). Features 10 km Links with 9/125 µm single mde fiber (SMF) 550 m Links in 62.5/125 µm multi mde fiber (MMF) Cmpliant t IEEE 802.3, 2000 Editin Cmpliant t Small Frm Factr MSA specificatins 2 x 5 package style with LC receptacle Single +3.3 V pwer supply Case perating temperature range: -10 C t +85 C Manufactured in an ISO9002 certified facility Fully Class 1 CDRH/IEC 825 cmpliant Wave slder and aqueus wash prcess cmpatible RHS Cmpliance Applicatins Gigabit Ethernet 1000BASE-LX High speed links fr Gigabit Ethernet Switches Ruters Hubs

2 Functinal Descriptin Receiver Sectin Design The receiver sectin fr the HFCT-5911ATLZ cntains an InGaAs/InP pht detectr and a pre-amplifier munted in an ptical subassembly. This ptical subassembly is cupled t a pst-amplifier/decisin circuit n a circuit bard. The design f the ptical assembly is such that it prvides better than 12 db Optical Return Lss (ORL). The pst-amplifier is ac cupled t the pre-amplifier as illustrated in Figure 1. The cupling capacitrs are capable f passing the Gigabit Ethernet test pattern at 1.25 Gb/s withut any significant distrtin r perfrmance penalty. If a lwer signal rate, r a cde which has significantly mre lw frequency cntent is used, sensitivity, jitter and pulse distrtin culd be degraded. Figure 1 als shws a filter functin which limits the bandwidth f the pre-amplifier utput signal. The filter is designed t bandlimit the pre-amplifier utput nise and thus imprve the receiver sensitivity. These cmpnents will reduce the sensitivity f the receiver as the signal bit rate is increased abve 1.25 Gb/s. Nise Immunity The receiver includes internal circuit cmpnents t filter pwer supply nise. Hwever under sme cnditins f EMI and pwer supply nise, external pwer supply filtering may be necessary (see Applicatin Sectin). The Signal Detect Circuit The signal detect circuit wrks by sensing the peak level f the received signal and cmparing this level t a reference. The SD utput is lw vltage TTL. TRANS- IMPEDANCE PRE- AMPLIFIER FILTER AMPLIFIER PECL OUTPUT BUFFER DATA OUT DATA OUT GND SIGNAL DETECT CIRCUIT TTL OUTPUT BUFFER SD Figure 1. Receiver Blck Diagram 2

3 Functinal Descriptin Transmitter Sectin Design A schematic diagram fr the transmitter is shwn in Figure 2. The HFCT-5911ATLZ incrprates an FP laser and has been designed t be cmpliant with IEC 825 eye safety requirements under any single fault cnditin and CDRH under nrmal perating cnditins. The ptical utput is cntrlled by a custm IC that detects the laser utput via the mnitr phtdide. This IC prvides bth dc and ac current drive t the laser t ensure crrect mdulatin, eye diagram and extinctin rati ver temperature, supply vltage and perating life. FP LASER PHOTODIODE (rear facet mnitr) DATA DATA PECL INPUT LASER MODULATOR LASER BIAS DRIVER LASER BIAS CONTROL Figure 2. Simplified Transmitter Schematic 3

4 Package The verall package cncept fr the device cnsists f the fllwing basic elements; tw ptical subassemblies, tw electrical subassemblies and the husing as illustrated in the blck diagram in Figure 3. The package utline drawing and pin ut are shwn in Figures 4 and 5. The details f this package utline and pin ut are cmpliant with the multisurce definitin f the 2 x 5 DIP. The electrical subassemblies cnsist f high vlume multilayer printed circuit bards n which the IC and varius surface-munted passive circuit elements are attached. The receiver electrical subassembly includes an internal shield fr the electrical and ptical subassembly t ensure high immunity t external EMI fields. The ptical subassemblies are each attached t their respective transmit r receive electrical subassemblies. These tw units are then placed within the uter husing f the transceiver. The uter husing f the transceiver is mlded with nncnductive plastic t prvide mechanical strength. The husing is then encased with a metal EMI prtective shield. The case is signal grund and we recmmend sldering the fur grund tabs t hst card signal grund. Each electrical subassembly PCB carries the signal pins that exit frm the bttm f the transceiver. The slder psts are fastened int the mlding f the device. This design prvides the mechanical strength required t withstand the additinal stresses n the transceiver resulting frm the insertin frce f fiber cable mating. Althugh the slder psts are cnnected electrically t the transceiver, it is recmmended that they are cnnected t the chassis grund. R X SUPPLY * DATA OUT DATA OUT QUANTIZER IC PIN PHOTODIODE PREAMPLIFIER SUBASSEMBLY SIGNAL DETECT DATA IN DATA IN Tx DISABLE T X GROUND LASER DRIVER AND CONTROL CIRCUIT R X GROUND LASER BIAS MONITORING LASER DIODE OUTPUT POWER MONITORING LASER OPTICAL SUBASSEMBLY LC RECEPTACLE T X SUPPLY CASE Figure 3. Blck Diagram * NOSE CLIP PROVIDES CONNECTION TO CHASSIS GROUND FOR IMPROVED EMI PERFORMANCE

5 15.0 ± 0.2 (0.591 ± 0.008) ( ) (0.535) MAX TOP VIEW 6.25 (0.246) 48.2 (1.898) (0.4) 10.8 ± ± 0.2 (0.425 ± 0.008) (0.378 ±0.008) 4.06 (0.16) Ø 1.07 MIN (0.042) ±0.3 (0.768 ±0.012) (0.039) 1.78 (0.07) 10 x 0.5 (0.02) 9.8 (0.386) MAX 3.81 (0.15) MIN 0.25 (0.01) 1 (0.039) BACK VIEW FRONT VIEW SIDE VIEW 10 x 0.25 (PIN THICKNESS) (0.01) NOTE: END OF PINS CHAMFERED BOTTOM VIEW T CASE REFERENCE POINT DIMENSIONS IN MILLIMETERS (INCHES) DIMENSIONS SHOWN ARE NOMINAL. ALL DIMENSIONS MEET THE MAXIMUM PACKAGE OUTLINE DRAWING IN THE SFF MSA. Figure 4. HFCT-5911ATLZ Package Outline Drawing 5

6 Cnnectin Diagram RX TX Munting Studs/ Slder Psts Package Grunding Tabs Tp View RECEIVER SIGNAL GROUND RECEIVER POWER SUPPLY SIGNAL DETECT RECEIVER DATA OUT BAR RECEIVER DATA OUT TRANSMITTER DATA IN BAR TRANSMITTER DATA IN TRANSMITTER DISABLE TRANSMITTER SIGNAL GROUND TRANSMITTER POWER SUPPLY Figure 5. Pin Out Diagram (Tp View) Pin Descriptins: Pin 1 Receiver Signal Grund V EE RX: Directly cnnect this pin t the receiver grund plane. Pin 2 Receiver Pwer Supply V CC RX: Prvide +3.3 V dc via the recmmended dc receiver pwer supply filter circuit. Lcate the pwer supply filter circuit as clse as pssible t the V CC RX pin. Nte: the filter circuit shuld nt cause V CC t drp belw minimum specificatin. Pin 3 Signal Detect SD: Nrmal ptical input levels t the receiver result in a lgic 1 utput. Lw ptical input levels t the receiver result in a lgic 0 utput. This Signal Detect utput can be used t drive a LVTTL input n an upstream circuit, such as Signal Detect input r Lss f Signal-bar. Pin 4 Receiver Data Out Bar RD-: Output internally biased and ac cupled. Pin 5 Receiver Data Out RD+: Output internally biased and ac cupled. Pin 6 Transmitter Pwer Supply V CC TX: Prvide +3.3 V dc via the recmmended dc transmitter pwer supply filter circuit. Lcate the pwer supply filter circuit as clse as pssible t the V CC TX pin. Pin 7 Transmitter Signal Grund V EE TX: Directly cnnect this pin t the transmitter signal grund plane. Pin 8 Transmitter Disable T DIS : Optinal feature, cnnect this pin t +3.3 V TTL lgic high 1 t disable mdule. T enable mdule cnnect t TTL lgic lw 0. Pin 9 Transmitter Data In TD+: Input internally terminated and ac cupled. Pin 10 Transmitter Data In Bar TD-: Input internally terminated and ac cupled. Munting Studs/Slder Psts The tw munting studs are prvided fr transceiver mechanical attachment t the circuit bard. It is recmmended that the hles in the circuit bard be cnnected t chassis grund. Package Grunding Tabs Cnnect fur package grunding tabs t signal grund. 6

7 Applicatin Infrmatin The Applicatins Engineering Grup at Avag Technlgies is available t assist yu with technical understanding and design trade-ffs assciated with these transceivers. Yu can cntact them thrugh yur Avag Technlgies sales representative. The fllwing infrmatin is prvided t answer sme f the mst cmmn questins abut the use f the parts. Optical Pwer Budget and Link Penalties The wrst-case Optical Pwer Budget (OPB) in db fr a fiber-ptic link is determined by the difference between the minimum transmitter utput ptical pwer (dbm avg) and the lwest receiver sensitivity (dbm avg). This OPB prvides the necessary ptical signal range t establish a wrking fiber-ptic link. The OPB is allcated fr the fiber-ptic cable length and the crrespnding link penalties. Fr prper link perfrmance, all penalties that affect the link perfrmance must be accunted fr within the link ptical pwer budget. The Gigabit Ethernet IEEE standard identifies, and has mdeled, the cntributins f these OPB penalties t establish the link length requirements fr 62.5/125 µm and 50/125 µm multimde fiber usage. In additin, single mde fiber with standard 1310 nm Fabry-Pert lasers have been mdeled and specified. Refer t the IEEE standard and its supplemental dcuments that develp the mdel, empirical results and specificatins. Refer t Sectin fr specificatin f ffset-launch mde-cnditining patch crd required fr MMF peratin f HFCT-5911ATLZ. 10km Link Supprt As well as cmplying with the LX 5 km standard, the HFCT-5911ATL specificatin prvides additinal margin allwing fr a 10 km Gigabit Ethernet link n a single mde fiber. This is accmplished by limiting the spectral width and center wavelength range f the transmitter while increasing the utput ptical pwer and imprving sensitivity. All ther LX cable plant recmmendatins shuld be fllwed. T DIS (LVTTL) Z = 50 W V CC (+3.3 V) Z = 50 W 130 W TD- 130 W TD+ NOTE A T X TD- TD+ T DIS V EE TX V CC TX C2 1 µh 10 µf V CC (+3.3 V) C3 10 µf V CC (+3.3 V) R X V EE RX V CC RX SD RD RD C1 1 µh 10 µf Z = 50 W 100 W RD+ NOTE B RD- Z = 50 W SD LVTTL Nte: C1 = C2 = C3 = 10 nf r 100 nf TD+, TD- INPUTS ARE INTERNALLY TERMINATED AND AC COUPLED. RD+, RD- OUTPUTS ARE INTERNALLY BIASED AND AC COUPLED. Nte A: CIRCUIT ASSUMES OPEN EMITTER OUTPUT. Nte B: CIRCUIT ASSUMES HIGH IMPENDANCE INTERNAL V CC V. Figure 6. Recmmended Interface Circuit

8 2 x Ø 2.29 MAX. (0.09) 2 x Ø 1.4 ±0.1 (0.055 ±0.004) 7.11 (0.28) 17.8 (0.700) 2 x Ø 1.4 ±0.1 (0.055 ±0.004) 3.56 (0.14) (0.525) (0.4) 4 x Ø 1.4 ±0.1 (0.055 ±0.004) 7.59 (0.299) 9.59 (0.378) 2 (0.079) 3 (0.118) 3 (0.118) 6 (0.236) 4.57 (0.18) 4 x 1.78 (0.07) 2 (0.079) 3.08 (0.121) 2 x Ø 2.29 (0.09) 10 x Ø 0.81 ±0.1 (0.032 ±0.004) NOTES: 1. THIS FIGURE DESCRIBES THE RECOMMENDED CIRCUIT BOARD LAYOUT FOR THE SFF TRANS- CEIVER. 2. THE HATCHED AREAS ARE KEEP-OUT AREAS RESERVED FOR HOUSING STANDOFFS. NO METAL TRACES OR GROUND CONNECTION IN KEEP-OUT AREAS x 5 TRANSCEIVER MODULE REQUIRES 16 PCB HOLES (10 I/O PINS, 2 SOLDER POSTS AND 4 PACKAGE GROUNDING TABS). PACKAGE GROUNDING TABS SHOULD BE CONNECTED TO SIG- NAL GROUND. 4. THE MOUNTING STUDS SHOULD BE SOLDERED TO CHASSIS GROUND FOR MECHANICAL IN- TEGRITY AND TO ENSURE FOOTPRINT COMPATIBILITY WITH OTHER SFF TRANSCEIVERS. 5. HOLES FOR HOUSING LEADS MUST BE TIED TO SIGNAL GROUND. DIMENSIONS IN MILLIMETERS (INCHES) Figure 7. Recmmended Bard Layut Hle Pattern Electrical and Mechanical Interface Recmmended Circuit Figure 6 shws the recmmended interface fr deplying the Avag Technlgies transceivers in a +3.3 V system. Data Line Intercnnectins Avag Technlgies HFCT-5911ATLZ fiber-ptic transceivers are designed t cuple t +3.3 V PECL signals. The transmitter driver circuit regulates the utput ptical pwer. The regulated light utput will maintain a cnstant utput ptical pwer prvided the data pattern is balanced in duty cycle. If the data duty cycle has lng, cntinuus state times (lw r high data duty cycle), then the utput ptical pwer will gradually change its average utput ptical pwer level t its preset value. The HFCT-5911ATLZ has a transmit disable functin which is a single-ended +3.3 V TTL input which is dc-cupled t Pin 8. The receiver sectin is internally ac-cupled between the preamplifier and the pst-amplifier stages. The Data and Data-bar utputs f the pst-amplifier are internally biased and ac-cupled t their respective utput pins (Pins 4, 5). Signal Detect is a single-ended, +3.3 V TTL cmpatible utput signal that is dc-cupled t Pin 3 f the mdule. Signal Detect shuld nt be ac-cupled externally t the fllw-n circuits because f its infrequent state changes. Cautin shuld be taken t accunt fr the prper intercnnectin between the supprting Physical Layer integrated circuits and these transceivers. Figure 6 illustrates a recmmended interface circuit fr intercnnecting t a +3.3 V dc PECL fiber-ptic transceiver. Pwer Supply Filtering and Grund Planes It is imprtant t exercise care in circuit bard layut t achieve ptimum perfrmance frm these transceivers. Figure 6 shws the pwer supply circuit which cmplies with the Small Frm Factr Multisurce Agreement. It is further recmmended that a cntinuus grund plane be prvided in the circuit bard directly under the transceiver t prvide a lw inductance grund fr signal return current. This recmmendatin is in keeping with gd high frequency bard layut practices. 8

9 10.16 ± 0.1 (0.4 ± 0.004) TOP OF PCB (0.6) B B DETAIL A (0.6) 1 (0.039) A SOLDER POSTS ±0.1 (0.56 ±0.004) MAX MIN. (0.62 MAX MIN.) SECTION B - B DIMENSIONS IN MILLIMETERS (INCHES) 1. FIGURE DESCRIBES THE RECOMMENDED FRONT PANEL OPENING FOR A LC OR SG SFF TRANSCEIVER. 2. SFF TRANSCEIVER PLACED AT mm (0.6) MIN. SPACING. Figure 8. Recmmended Panel Munting Package ftprint and frnt panel cnsideratins The Avag Technlgies transceivers cmply with the circuit bard Cmmn Transceiver Ftprint hle pattern defined in the current multisurce agreement which defined the 2 x 5 package style. This drawing is reprduced in Figure 7 with the additin f ANSI Y14.5M cmpliant dimensining t be used as a guide in the mechanical layut f yur circuit bard. Figure 8 shws the frnt panel dimensins assciated with such a layut. Eye Safety Circuit Fr an ptical transmitter device t be eye-safe in the event f a single fault failure, the transmit-ter must either maintain eye-safe peratin r be disabled. The HFCT-5911ATLZ is intrinsically eye safe and des nt require shut dwn circuitry. Signal Detect The Signal Detect circuit prvides a de-asserted utput signal when the ptical link is brken (r when the remte transmitter is OFF). The Signal Detect threshld is set t transitin frm a high t lw state between the minimum receiver input ptical pwer and -30 dbm avg. input ptical pwer indicating a definite ptical fault (e.g. unplugged cnnectr fr the receiver r transmitter, brken fiber, r failed far-end transmitter r data surce). The Signal Detect des nt detect receiver data errr r errr-rate. Data errrs can be determined by signal prcessing ffered by upstream PHY ICs. Electrmagnetic Interference (EMI) One f a circuit bard designer s fremst cncerns is the cntrl f electrmagnetic emissins frm electrnic equipment. Success in cntrlling generated Electrmagnetic Interference (EMI) enables the designer t pass a gvernmental agency s EMI regulatry standard and mre imprtantly, it reduces the pssibility f interference t neighbring equipment. Avag Technlgies has designed the HFCT-5911ATLZ t prvide gd EMI perfrmance. The EMI perfrmance f a chassis is dependent n physical design and features which help imprve EMI suppressin. Avag Technlgies encurages using standard RF suppressin practices and aviding prly EMI-sealed enclsures. Avag Technlgies LC transceivers (HFCT-5911ATLZ) have nse shields which prvide a cnvenient chassis cnnectin t the nse f the transceiver. This nse shield imprves system EMI perfrmance by effectively clsing ff the LC aperture. Lcalized shielding is als imprved by tying the fur metal husing package grunding tabs t signal grund n the PCB. Thugh nt bvius by inspectin, the nse shield and metal husing are electrically separated fr custmers wh d nt wish t directly tie chassis and signal grunds tgether. Figure 8 shws the recmmended psitining f the transceivers with respect t the PCB and faceplate. 9

10 Package and Handling Instructins Flammability The HFCT-5911ATLZ transceiver husing cnsists f high strength, heat resistant and UL 94 V-0 flame retardant plastic and metal packaging. Recmmended Slder and Wash Prcess The HFCT-5911ATLZ are cmpatible with industry-standard wave slder prcesses. Prcess plug This transceiver is supplied with a prcess plug fr prtectin f the ptical prt within the LC cnnectr receptacle. This prcess plug prevents cntaminatin during wave slder and aqueus rinse as well as during handling, shipping and strage. It is made f a high-temperature, mlded sealing material that can withstand +85 C and a rinse pressure f 110 lbs per square inch. Recmmended Slder fluxes Slder fluxes used with the HFCT-5911ATLZ shuld be water-sluble, rganic fluxes. Recmmended slder fluxes include Lnc frm Lndn Chemical West, Inc. f Burbank, CA, and 100 Flux frm Alpha-Metals f Jersey City, NJ. Recmmended Cleaning/Degreasing Chemicals Alchls: methyl, isprpyl, isbutyl. Aliphatics: hexane, heptane Other: naphtha. D nt use partially halgenated hydrcarbns such as 1,1.1 trichlrethane, ketnes such as MEK, acetne, chlrfrm, ethyl acetate, methylene dichlride, phenl, methylene chlride, r N-methylpyrlldne. Als, Avag Technlgies des nt recmmend the use f cleaners that use halgenated hydrcarbns because f their ptential envirnmental harm. LC SFF Cleaning Recmmendatins In the event f cntaminatin f the ptical prts, the recmmended cleaning prcess is the use f frced nitrgen. If cntaminatin is thught t have remained, the ptical prts can be cleaned using a NTT internatinal Cletp stick type (diam. 1.25mm) and HFE7100 cleaning fluid. Regulatry Cmpliance The Regulatry Cmpliance fr transceiver perfrmance is shwn in Table 1. The verall equipment design will determine the certificatin level. The transceiver perfrmance is ffered as a figure f merit t assist the designer in cnsidering their use in equipment designs. Electrstatic Discharge (ESD) The device has been tested t cmply with MIL-STD- 883 (Methd 3015). It is imprtant t use nrmal ESD handling precautins fr ESD sensitive devices. These precautins include using grunded wrist straps, wrk benches, and flr mats in ESD cntrlled areas. Electrmagnetic Interference (EMI) Mst equipment designs utilizing these high-speed transceivers frm Avag Technlgies will be required t meet FCC regulatins in the United States, CENELEC EN55022 (CISPR 22) in Eurpe and VCCI in Japan. Refer t EMI sectin (page 9) fr mre details. Immunity Transceivers will be subject t radi-frequency electrmagnetic fields fllwing the IEC test methd. Eye Safety These laser-based transceivers are classified as AEL Class I (U.S. 21 CFR(J) and AEL Class 1 per IEC (+A11). They are eye safe when used within the data sheet limits per CDRH. They are als eye safe under nrmal perating cnditins and under all reasnably freseeable single fault cnditins per IEC Avag Technlgies has tested the transceiver design fr cmpliance with the requirements listed belw. These tests were cnducted under nrmal perating cnditins and under single fault cnditins where applicable. TUV Rheinland has granted certificatin t these transceivers fr laser eye safety and use in IEC applicatins. Their perfrmance enables the transceivers t be used withut cncern fr eye safety up t 3.6 V transmitter V CC. 10

11 Regulatry Cmpliance - Targeted Specificatin Feature Test Methd Perfrmance Electrstatic Discharge (ESD) t the Electrical Pins Electrstatic Discharge (ESD) t the LC Receptacle Electrmagnetic Interference (EMI) MIL-STD-883 Methd Variatin f IEC FCC Class B CENELEC EN55022 Class B (CISPR 22A) VCCI Class I Class 2 (>2 kv). Tested t 8 kv cntact discharge. Margins are dependent n custmer bard and chassis designs. Immunity Variatin f IEC Typically shw n measurable effect frm a 10 V/m field swept frm 27 t 1000 MHz applied t the transceiver withut a chassis enclsure. Laser Eye Safety and Equipment Type Testing FDA CDRH 21-CFR 1040 Class 1 Accessin Number: HFCT-5911ATLZ ) Cmpnent Recgnitin RHS Cmpliance IEC Amendment Underwriters Labratries and Canadian Standards Assciatin Jint Cmpnent Recgnitin fr Infrmatin Technlgy Equipment Including Electrical Business Equipment. License Number: 933/510206/01 UL File Number: E Less than 1000 ppm f cadmium, lead, mercury, hexavalent chrmium, plybrminated biphenyls, and plybrminated biphenyl ethers. CAUTION: There are n user serviceable parts nr any maintenance required fr the HFCT-5911ATL. All adjustments are made at the factry befre shipment t ur custmers. Tampering with r mdifying the perfrmance f the parts will result in vided prduct warranty. It may als result in imprper peratin f the circuitry, and pssible verstress f the laser surce. Device degradatin r prduct failure may result. Cnnectin f the devices t a nn-apprved ptical surce, perating abve the recmmended abslute maximum cnditins r perating the HFCT-5911ATLZ in a manner incnsistent with its design and functin may result in hazardus radiatin expsure and may be cnsidered an act f mdifying r manufacturing a laser prduct. The persn(s) perfrming such an act is required by law t re-certify and re-identify the laser prduct under the prvisins f U.S. 21 CFR (Subchapter J). 11

12 Abslute Maximum Ratings Stresses in excess f the abslute maximum ratings can cause catastrphic damage t the device. Limits apply t each parameter in islatin, all ther parameters having values within the recmmended perating cnditins. It shuld nt be assumed that limiting values f mre than ne parameter can be applied t the prduct at the same time. Expsure t the abslute maximum ratings fr extended perids can adversely affect device reliability. Parameter Symbl Min Typ Max Unit Ntes Strage Temperature (nn-perating) T S C Relative Humidity RH 85 % Supply Vltage V CC V 1 Input Vltage n any Pin V I -0.5 V CC V Recmmended Operating Cnditins Parameter Symbl Min Typ Max Unit Ntes Case Operating Temperature T C C Supply Vltage V CC V Pwer Supply Nise Rejectin PSNR 100 mv P-P 2 Data Output Lad R DL 50 W Transmit Disable Input Vltage - Lw T DIS 0.6 V Transmit Disable Input Vltage - High T DIS 2.2 V Transmit Disable Assert Time T ASSERT 10 µs 3 Transmit Disable Deassert Time T DEASSERT 1.0 ms 4 Prcess Cmpatibility Parameter Symbl Min Typ Max Unit Ntes Wave Sldering and Aqueus Wash T SOLD /t SOLD +260/10 C/sec. 5 Ntes: 1. The transceiver is class 1 eye safe up t V CC = 3.6 V. 2. Tested with a sinusidal signal in the frequency range frm 10 Hz t 1 MHz n the V CC supply with the recmmended pwer supply filter in place. Typically less than a 1 db change in sensitivity is experienced. 3. Time delay frm Transmit Disable Assertin t laser shutdwn. 4. Time delay frm Transmit Disable Deassertin t laser startup. 5. Aqueus wash pressure <110 psi. 12

13 Transmitter Electrical Characteristics T C = -10 C t +85 C, V CC = 3.1 V t 3.5 V Parameter Symbl Min Typ Max Unit Ntes Supply Current I CCT ma Transmitter Pwer Dissipatin P DIST mw Data Input Vltage Swing (single-ended) V IH - V IL mv Transmitter Differential Data Input Current - Lw I IL -350 µa Transmitter Differential Data Input Current - High I IH 350 µa Receiver Electrical Characteristics T C = -10 C t +85 C, V CC = 3.1 V t 3.5 V Parameter Symbl Min Typ Max Unit Ntes Supply Current I CC RX ma Receiver Pwer Dissipatin P DISS mw Data Output Vltage Swing (single-ended) V OH - V OL mv 1 Data Output Rise Time t r 0.40 ns 2 Data Output Fall Time t f 0.40 ns 2 Signal Detect Output Vltage - Lw V OL 0.6 V 3 Signal Detect Output Vltage - High V OH 2.0 V 3 Signal Detect Assert Time (OFF t ON) AS MAX 100 µs Signal Detect Deassert Time (ON t OFF) ANS MAX 100 µs Ntes: 1. These utputs are cmpatible with 10 k, 10 kh, and 100 k ECL and PECL inputs. 2. These are 20-80% values. 3. SD is LVTTL cmpatible. 13

14 Transmitter Optical Characteristics T C = -10 C t +85 C, V CC = 3.1 V t 3.5 V Parameter Symbl Min Typ Max Unit Ntes Output Optical Pwer 9 µm SMF 62.5 µm MMF 50 µm MMF P OUT Optical Extinctin Rati ER 9 db dbm 1 Center Wavelength Cl nm 8, Fig 10 Spectral Width - RMS nm 8, Fig 10 Optical Rise/Fall Time T RISE/FALL 0.26 ns 2, 3, Fig 9 Randm Intensity Nise RIN db/hz Cntributed Ttal Jitter added at TP2 TJ 227 ps 4 Cupled Pwer Rati 62.5 µm MMF CPR 28<CPR<40 Cupled Pwer Rati 50 µm MMF CPR 12<CPR<20 Receiver Optical Characteristics T C = -10 C t +85 C, V CC = 3.1 V t 3.5 V Parameter Symbl Min Typ Max Unit Reference Receiver Overlad P IN MAX -3 dbm avg Receiver Sensitivity P IN MIN -20 dbm avg 5 Stressed Receiver Sensitivity dbm avg 6, 7 Stressed Receiver Eye Opening at TP4 201 ps 4, 7 Receiver Electrical 3 db Upper Cutff Frequency 1500 MHz Operating Center Wavelength l C nm Return Lss 12 db Signal Detect - Asserted P A -20 dbm avg Signal Detect - Deasserted P D -30 dbm avg Signal Detect - Hysteresis P A - P D 1.5 db Ntes: 1. The maximum Optical Output Pwer cmplies with IEEE specificatin, and is class 1 laser eye safe. 2. These are unfiltered 20-80% values. 3. An eye diagram (Figure 9) specifies laser transmitter pulse respnse characteristics. The characteristics include rise time, fall time, pulse undersht, and ringing, all f which are cntrlled t prevent excessive degradatin f the receiver sensitivity. The referenced Gigabit Ethernet eye diagram using the required filter specifies these parameters. The utput ptical wavefrm cmplies with the requirements f the eye mask discussed in sectin and Fig f IEEE TP refers t the cmpliance pint specified in 802.3, sectin The receiver sensitivity is measured using a wrst case extinctin rati penalty while sampling at the center f the eye. Fr a PRBS the receiver will prvide utput data with better than r equal t 1E-12 BER. 6. The stressed receiver sensitivity is measured using the cnfrmance test signal defined in 802.3, sectin The cnfrmance test signal is cnditined by applying deterministic jitter and intersymbl interference. 7. The stressed receiver jitter is measured using the cnfrmance test signal defined in 802.3, sectin and set t an average ptical pwer 0.5 db greater than the specified stressed receiver sensitivity. 8. In rder t meet the 10 km link pwer budget the transmitter can trade ff spectral width and center wavelength as shwn in Figure

15 NORMALIZED TIME (UNIT INTERVAL) NORMALIZED AMPLITUDE (%) NORMALIZED AMPLITUDE NORMALIZED TIME (% OF UNIT INTERVAL) Figure 9. Gigabit Ethernet Transmitter eye mask diagram RMS spectral width (nm) Minimum Launched Pwer -9.5 dbm Wavelength (nm) Figure 10. Maximum spectral width trade ff curve derived frm GigaBit Ethernet link mdel 15

16 Design Supprt Materials Avag Technlgies has created a reference design with HDMP-1687 PHY IC in rder t demnstrate full functinality and interperability. Such design infrmatin and results can be made available t the designer as a technical aid. Please cntact yur Avag Technlgies representative fr further infrmatin if required. Ordering Infrmatin 1310 nm FP Laser (Case Temperature range -10 C t +85 C) HFCT-5911ATLZ Related Prducts Other single mde Gigabit Ethernet transceivers in this prduct family are: HFCT-5914ATLZ 2x10 DIP Class 1 Laser Prduct: This prduct cnfrms t the applicable requirements f 21 CFR 1040 at the date f manufacture Date f Manufacture: Avag Technlgies Inc., N 1 Yishun Ave 7, Singapre Handling Precautins 1. The HFCT-5911ATLZ can be damaged by current surges r vervltage. Pwer supply transient precautins shuld be taken. 2. Nrmal handling precautins fr electrstatic sensitive devices shuld be taken. Fr prduct infrmatin and a cmplete list f distributrs, please g t ur web site: Avag, Avag Technlgies, and the A lg are trademarks f Avag Technlgies, Pte. in the United States and ther cuntries. Data subject t change. Cpyright 2006 Avag Technlgies Pte. All rights reserved EN - July 17, 2006