View AFBR-720XPDZ_4589947.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

features ? rohs 6/6 compliance ? complian ? ?o ??? ? s? complian ? ? o ??? ?s? ? complian ? ? o ieee 802.3ae 0gb ? se-sr for 0gbe, 0.325 gb/s ? complian ? ??i 0g serial elec ? rical in ? erface ? 3.3v single power supply ? ? vago technologies 850 nm vcsel laser and ? in ? ho? odiode ? no reference clock required ? lc duplex op?ical connec ? or in ? erface conforming ? o ?nsi ti?/ei?604-0 (?ocis 0) ? .5w maximum ? link leng?hs up ? o 300 m wi?h 0?3 fber ? 0 ? o +70 c case opera ?ing ? empera ? ure range ? superior thermal and e?i in ? egri ? y performance ? o sup - por ? high por ? densi?ies ? cus ? omizable clip-on hea ?sink ? o suppor ? a varie ? y of line card environmen ?s ? iec 60825- class /cdrh class laser eye safe? y applications ? ? iber channel swi? ches ? hos ? bus ? dap? er cards ? ? ass s ? orage sys? em and server i/o ? e ? herne? swi? ches ? core rou? ers description the 850 nm ??? ? ransceiver is a high performance, cos ? efec ? ive module for serial op?ical da ?a communica ?ions applica ?ions specifed for signal ra ? es of 9.9 gb/s ? o 0.5 gb/s. i ? is complian ? ? o ??? ?s? rev 4.5. the module is designed for mul?i mode fber and opera ? es a ? a nominal waveleng ?h of 850 nm. the ? ransmi ?? er sec ?ion incorpo - ra ? es ? vago technologies 850 nm ver ?ical cavi ? y surface emi??ing laser (vcsel). the receiver sec ?ion uses ? vago technologies ? ov ? e grown planar sedet ? in pho ? o - de? ec ? or for low dark curren ? and excellen ? responsivi ? y. in ? egra ? ed tx and rx signal condi ? ioners provide high ji?? er- ? olerance for full ??i compliance. the in ? ernally ac coupled high speed serial i/o simplifes in ? erfacing ? o ex ? ernal circui ? ry. the elec ? rical in ? erface is made using an indus ? ry s ? andard 0.8 mm pi ? ch 30-pin righ ? angle connec ? or. op?ical connec ?ion is made via ?he duplex lc connec ? or. the produc ? also ofers digi ?al diagnos ?ics using ?he 2- wire serial in ? erface defned in ?he ??? ?s?. the produc ? provides real ? ime ? empera ? ure (module and laser), sup - ply vol ? age, laser bias curren ? , laser average ou?pu? power and received inpu? power. the digi ?al diagnos ?ic in ? erface also adds ?he abili? y ? o disable ?he ? ransmi?? er (t ?_dis), power down ? he module, moni? or for module faul?s and moni? or for receiver loss of signal (r ? _los). transmi ?? er disable, in ? errup ? , power down/rese ? , receiver loss of sig - nal and module no? ready are also hard wired pins on ?he 30-pin righ ? angle connec ? or. AFBR-720XPDZ 10gbe xfp 850 nm 10gbps optical transceiver data sheet
2 installation the ?? br-720??dz can be ins?alled in any ??? por ? re - gardless of hos? equipmen ? opera ?ing s?a ? us. the ?? br- 720 ?? dz is ho ? -pluggable, allowing ? he module ? o be ins?alled while ?he hos? sys? em is opera ?ing and on-line. upon inser ? ion, ? he ? ransceiver housing makes ini ? ial con ?ac ? wi?h ?he hos? board ??? cage, mi?iga ?ing po? en - ?ial damage due ? o elec ? ro-s ?a ?ic discharge (esd). once fully inser ? ed in ? o ?he ??? cage, ? he ? op surface of ?he ??? module makes con ?ac ? wi?h ?he hea ?sink ? hrough a cu? ou? in ?he ? op of ?he cage ensuring an efec ? ive ?her - mal pa ?h for module hea ? . functional description transmitter section the ? ransmi ?? er sec ?ion includes a 850 nm vcsel (ver ?ical cavi ? y surface emi?? ing laser) ligh ? source, a ? ransmi? - ? er driver circui ? and a signal condi ?ioner circui ? on ?he t ? da ?a inpu? s. (see ? igure ) op?ical connec ?ion ? o ?he ? ransmi?? er is provided via a lc connec ? or. the op?ical ou?pu? is con ? rolled by an ic ?ha ? de? ec ?s ?he laser ou?pu? via ?he moni? or pho? odiode. this ic provides bo?h dc and ac curren ? drive ? o ?he laser ? o ensure correc ? modula ?ion, eye diagram and ex ?inc ?ion ra ?io over ? empera ? ure, sup - ply vol?age and opera ?ing life. tx_dis ? sser ?ing pin 5, t ?_dis, will disable ?he ? ransmi?? er op?i - cal ou?pu? . the ? ransmi ?? er ou?pu? can also be disabled and moni? ored via ?he ? wo-wire serial in ? erface. eye safety circuit under normal opera ?ing condi ?ions laser power will be main ? ained below class eye-safe ? y limi ? s. should a ca ?as? rophic laser faul? occur and op?ical power become uncon ? rolled, ? he micro-con ? roller and laser driver ic will de? ec ? ? he faul? , shu? down ? he laser, power down ?he module and asser ? ? he hard-wired ? od_nr fag. the t ?_ ?? ult ou?pu? in ?he 2-wire serial in ? erface will also be asser ? ed. figure 1. transceiver functional diagram pin laser rf driver cw driver optical receptacles electrical connector mon. pin rosa tosa eeprom micro controller a/d esa heat sink analog signal conditioners main housing analog bus digital 10 gb/s electrical i/o digital low speed bus or signal analog signal power supply control tia tia +3.3v signal conditioner signal conditioner
3 receiver section the receiver sec ?ion includes a ?in de? ec ? or wi?h am - plifca ?ion quan ?iza ?ion signal condi ?ioner circui ? s. (see ? igure ) op?ical connec ?ion ? o ?he receiver is provided via a lc op?ical connec ? or. rx_los the receiver sec ?ion con ?ains a loss of signal (r ? _los) circui ? ? o indica ? e when ?he op?ical inpu? signal power is insufcien ? for reliable signal de? ec ?ion. ? high signal indica ? es loss of modula ? ed signal, indica ?ing link failure such as a broken fber or nonfunc ?ional remo ? e ? rans - mi?? er. r ? _los can also be moni? ored via ?he ? wo-wire serial in ? erface (by? e 0, bi? ). xfp module host boar d optional host +5 v 4.7 h v cc 5 0.1 f 22 f 0.1 f host +3.3 v 4 .7 h v cc 3 0.1 f 22 f 0.1 f optional host +1.8 v 4.7 h v cc 2 0.1 f 22 f 0.1 f optional host -5.2 v 4.7 h v ee 5 0.1 f 22 f 0.1 f gn d xfp connector figure 2. msa recommended power supply flter 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 toward asic toward bezel figure 3. host pcb xfp pinout top view functional data i/o ? vago technologies ?? br-720 ?? dz fber-op ? ic ? rans - ceiver is designed ? o accep ? indus? ry s? andard elec ? rical inpu? diferen ?ial signals. the ? ransceiver provides ac- coupled, in ? ernally ? ermina ? ed da ? a inpu ? and ou ? pu ? in ? erfaces. bias resis ? ors and coupling capaci? ors have been included wi?hin ?he module ? o reduce ? he number of componen ?s required on ?he cus? omers board.
4 table 1. electrical pin defnitions pin name logic function/description notes gnd ? odule ground 2 v ee 5 -5.2 v power supply. no? in ? ernally connec ? ed. 3 ? od-desel lvttl-i ? odule de-selec ?; when held low allows ?he module ? o respond ? o 2- wire serial in ? erface commands 4 in ? errup ? lvttl-o in ? errup ?; indica ? es presence of an impor ?an ? condi?ion which can be readover ?he serial 2-wire in ? erface 2 5 t ?_dis lvttl-i transmi ?? er disable; transmi ?? er laser source turned of 6 v cc 5 5 v power supply. no? in ? ernally connec ? ed. 7 gnd ? odule ground 8 v cc 3 +3.3 v ? ower supply 9 v cc 3 +3.3 v ? ower supply 0 scl lvttl-i two wire in ? erface clock 2 sd ? lvttl-i/o two wire in ? erface da ?a line 2 2 ? od_? bs lvttl-o lvttl-o ? od_? bs indica ? es ? odule is no? presen ? . grounded in ?he ? odule 2 3 ? od_nr lvttl-o ? odule no? ready; indica ?ing ? odule opera ?ional ? aul? 2 4 r ? _los lvttl-o receiver loss of signal indica ? or 2 5 gnd ? odule ground 6 gnd ? odule ground 7 rd- c? l-o receiver inver ? ed da ?a ou?pu? 8 rd+ c? l-o receiver non-inver ? ed da ?a ou?pu? 9 gnd ? odule ground 20 v cc 2 +.8 v ? ower supply. no? in ? ernally connec ? ed. 2 ? _down/rst lvttl-i ? ower down: when high, ?he module is pu? in ? o a lower power mode. serial in ? erface is func ?ional in ?he low power mode. rese?: the falling edge ini?ia ? es a comple? e rese? of ?he module including ?he serial in ? er - face, equivalen ? ? o a power cycle. 22 v cc 2 +.8 v ? ower supply. no? in ? ernally connec ? ed. 23 gnd ? odule ground 24 refclk+ ? ecl-i reference clock non-inver ? ed inpu? , ac coupled on ?he hos? board (no? used) 3 25 refclk- ? ecl-i reference clock inver ? ed inpu? , ac coupled on ?he hos? board (no? used) 3 26 gnd ? odule ground 27 gnd ? odule ground 28 td- c? l-i transmi ?? er inver ? ed da ?a inpu? 29 td+ c? l-i transmi ?? er non-inver ? ed da ?a inpu? 30 gnd ? odule ground notes: . ? odule ground pins gnd are isola ? ed from ?he module case and chassis ground wi?hin ?he module. 2. open collec ? or should be pulled up wi?h 4.7 k-0 kohms ? o a vol?age be? ween 3.5 v and 3.6 v on ?he hos? board. 3. refclk+/- are in ? ernally ? ermina ? ed (50?)
5 absolute maximum ratings parameter symbol minimum typical maximum unit notes s ? orage tempera ? ure (non-opera ?ing) t s -40 +85 c , 2 rela ? ive humidi? y rh 0 90 % supply vol ?age v cc 3 0 3.6 v , 2 low speed inpu? vol ?age v in -0.5 v cc +0.5 v parameter symbol minimum typical maximum unit notes ? ower supply noise rejec ?ion (peak-peak) under ? hz ?snr 2% of v cc mv 6 ? ower supply noise rejec ?ion (peak-peak) ? hz ? o 0 ? hz ?snr 3% of v cc mv 6 ? odule supply curren ? i cc 430 m? ? ower dissipa ?ion ? diss .5 w low speed outputs: ?od_nr, r ? _los, ?od_?bs, interru?t v oh v ol hos?_v cc -0.5 0.0 0.0 hos?_v cc +0.3 0.4 v v 7 8 low speed inputs: t ?_dis, ?od_desel, ?_down/rst v ih v il 2.0 -0.3 v cc 3+0.3 0.8 v v 0 9 parameter symbol minimum typical maximum unit notes case opera ?ing tempera ? ure t c 0 +70 c 3 supply vol ?age v cc 3 3.35 3.465 v 5 da ?a ra ? e 0.325 gb/s notes: . ? bsolu? e ? aximum ra ?ings are ? hose values beyond which damage ? o ?he device may occur if ?hese limi?s are exceeded for o?her ?han a shor ? period of ? ime. see reliabili? y da ?a shee? for specifc reliabili? y performance. 2. be ? ween ? bsolu? e ? aximum ra ?ings and ?he recommended opera ?ing condi ?ions func ?ional performance is no? in ? ended, device reliabili ? y is no? implied, and damage ? o ?he device may occur over an ex ? ended period of ? ime. 3. the ? mbien ? opera ?ing tempera ? ure limi?a ?ions are based on ?he case opera ?ing tempera ? ure limi?a ?ions and are subjec ? ? o ?he hos? sys ? em ? hermal design. 4. recommended opera ?ing condi?ions are ?hose values for which func ?ional performance and device reliabili? y is implied 5. vcc condi?ion applies ? o supply vol?age a ? ?he ??? module 6. ? il? er per ??? specifca ?ion is required on ?he hos? board. 7. 4.7 k w ? o 0 k w resis ? or pull-up ? o hos?_v cc , measured a ? ?he hos? side of connec ? or. i oh (max) = - 2 m?. 8. 4.7 k w ? o 0 k w resis ? or pull-up ? o hos?_v cc , measured a ? ?he hos? side of connec ? or. i ol (max) = 2 m?. 9. 4.7 k w ? o 0 k w resis ? or pull-up ? o hos?_v cc , measured a ? ?he hos? side of connec ? or. i il (max) = 0 ?. 0. 4.7 k w ? o 0 k w resis ? or pull-up ? o hos?_v cc , measured a ? ?he hos? side of connec ? or. i ih (max) = - 0 ?. transceiver electrical characteristics (t c = 0 c ? o +70 c, v cc 3 = 3.3 v 5%) recommended operating conditions [4]
6 transmitter electrical input characteristics (t c = 0 c ? o +70 c, v cc 3 = 3.3 v 5%) parameter symbol minimum typical maximum unit notes diferen ?ial inpu? impedance z d 00 w termina ?ion ? isma ? ch d z ? 5 % diferen ?ial inpu? ? mpli?ude dvqdo 20 820 mv peak ? o peak () diferen ?ial inpu? re? urn loss sdd 20 db 0.05 ? o 0. ghz diferen ?ial inpu? re? urn loss sdd 8 db 0. ? o 5.5 ghz diferen ?ial inpu? re? urn loss sdd 8 - 20.66 log0(f/5.5) f in ghz db 5.5 - 2 ghz common ? ode inpu? re? urn loss scc 3 db 0. ? o 5 ghz diferen ?ial ? o common ? ode conversion scd 0 db 0. ? o 5 ghz ji?? er and eye ? ask ??? ?s? complian ? parameter symbol minimum typical maximum unit notes diferen ?ial inpu? impedance z d 00 w termina ?ion ? isma ? ch d z ? 5 % diferen ?ial ou?pu? ? mpli?ude 340 850 mv peak ? o peak () dc common ? ode ? o? en ?ial v cm 0 3.6 v ou ?pu? ? c common ? ode vol ?age 5 mv r?s ou ?pu? rise/? all ?ime (20% ? o 80%) ? rh , ? ?h 24 ps common mode ou?pu? re? urn loss scc22 3 0. ? o 5 ghz diferen ?ial ou?pu? re? urn loss sdd22 20 db 0.05 ? o 0. ghz diferen ?ial ou?pu? re? urn loss sdd22 8 db 0. ? o 5.5 ghz diferen ?ial ou?pu? re? urn loss sdd22 8 - 20.66 log0(f/5.5) f in ghz db 5.5 - 2 ghz ji?? er and eye ? ask ??? ?s? complian ? receiver electrical output characteristics note: . the diferen ?ial inpu? and ou?pu? ampli?udes are per ??? ?s? mask a ? poin ?s b and c.
7 transmitter optical characteristics 10 gbe (t c = 0 c ? o +70 c, v cc 3 = 3.3 v 5%) parameter symbol minimum typical maximum unit notes laser o ?? ou?pu? ? ower ? ou? -4.3 dbm , 2, 4 ? ean op?ical ou?pu? ? ower ? ou? -7.3 - dbm , 2, 3, 5 ex ?inc ?ion ra ?io er 3.0 db , 2 spec ? ral wid ?h - rms s , rms 0.45 nm r?s 4 cen ? er waveleng ?h c 840 850 860 nm transmi ?? er and dispersion penal? y td? 3.9 db , 2 transmi ?? er o?? ? verage op?ical ou ?pu? ? ower ? of -30 dbm rin 2 (o ?? ) rin -28 db/hz op?ical eye ? ask complian ? wi?h ieee 802.3ae 0gb?se-sr ??? ?s? see ? ig 4 parameter symbol minimum typical maximum unit notes s ? ressed receiver sensi?ivi? y (o ?? ) -7.5 dbm receiver sensi?ivi? y (o ?? ) ? in -. dbm 3 receiver refec ? ance -2 db waveleng ?h c 840 850 860 nm notes: . 0g?c 200-?? -sn-i / ieee 802.3ae 0gb?se-sr complian ? 2. these parame? ers are in ? errela ? ed: see ieee 802.3ae, clause 52. 3. ? or informa ?ion only 4. trade-ofs are available be? ween spec ? ral wid?h, cen ? er waveleng?h and minimum op?ical ? odula ?ion ? mpli?ude (o ?? ). see ? igure 4? and op?ical ? odula ?ion table. 5. the maximum 0gb?se-sr ? verage op?ical ou?pu? ? ower shall be ?he lesser of ?he class safe? y limi? as defned by ieee 802.3ae 52.0.2 or ?he average receive power maximum defned by ieee 802.3ae table 52-9 receiver optical characteristics 10 gbe (t c = 0 c ? o +70 c, v cc 3 = 3.3 v 5%) no? e: where ?, ?2, ?3, y, y2, y3 = 0.25, 0.40, 0.45, 0.25, 0.28, 0.40 respec ? ively figure 4. transmitter eye mask defnition
8 0.4 to 0.45 nm 0.35 to 0.4 nm 0.3 to 0.35 nm 0.25 to 0.3 nm 0.2 to 0.25 nm 0.15 to 0.2 nm up to 0.05 nm -2.5 -2.7 -2.9 -3.1 -3.3 -3.5 -3.7 -3.9 -4.1 -4.3 -4.5 840 center wavelength (nm) minimum transmit oma (dbm) 845 850 855 860 figure 4a. triple tradeof curve for 10gbase-s (informative) optical modulation centerwavelength(nm) rms spec tral width (nm) up to 0.05 0.05 to 0.1 0.1 to 0.15 0.15 to 0.2 0.2 to 0.25 0.25 to 0.3 0.3 to 0.35 0.35 to 0.4 0.4 to 0.45 840 ? o 842 -4.2 -4.2 -4. -4. -3.9 -3.8 -3.5 -3.2 -2.8 842 ? o 844 -4.2 -4.2 -4.2 -4. -3.9 -3.8 -3.6 -3.3 -2.9 844 ? o 846 -4.2 -4.2 -4.2 -4. -4.0 -3.8 -3.6 -3.3 -2.9 846 ? o 848 -4.3 -4.2 -4.2 -4. -4.0 -3.8 -3.6 -3.3 -2.9 848 ? o 850 -4.3 -4.2 -4.2 -4. -4.0 -3.8 -3.6 -3.3 -3.0 850 ? o 852 -4.3 -4.2 -4.2 -4. -4.0 -3.8 -3.6 -3.4 -3.0 852 ? o 854 -4.3 -4.2 -4.2 -4. -4.0 -3.9 -3.7 -3.4 -3. 854 ? o 856 -4.3 -4.3 -4.2 -4. -4.0 -3.9 -3.7 -3.4 -3. 856 ? o 858 -4.3 -4.3 -4.2 -4. -4.0 -3.9 -3.7 -3.5 -3. 858 ? o 860 -4.3 -4.3 -4.2 -4.2 -4. -3.9 -3.7 -3.5 -3.2
9 transceiver timing characteristics (t c = 0 c ? o +70 c, v cc 3 = 3.3 v 5%) parameter symbol minimum typical maximum unit notes t ?_dis ? sser ? time ?_of 0 s time from rising edge of t ?_dis ? o when ?he op?ical ou?pu? falls below 0% of nominal. t ?_dis nega ? e time ?_on 2 ms time from falling edge of t ?_dis ? o when ?he modula ? ed op?ical ou?pu? rises above 90% of nominal. time ? o ini? ialize ?_ini? 300 ms ? rom power on or ho? plug af ? er mee?ing power supply specs in ? errup ? asser ? delay in ? errup ?_on 200 ms ? rom occurrence of ?he condi?ion ? riggering in ? errup ? in ? errup ? nega ? e delay in ? errup ?_of 500 us ? rom clear on read in ? errup ? fags ? _down/ rst asser ? delay ? _down/rst_on 00 us ? rom ? ower down ini?ia ?ion ? -down nega ? e delay ? _down/rst_of 300 ms ? ax delay from nega ? e ? o comple - ?ion of power up and rese? ? od_nr asser ? delay ? od_nr_on ms ? rom occurrence of faul? ? o asser - ?ion of ? od_nr ? od_nr nega ? e delay ? od_nr_of ms ? rom occurrence of signal ? o nega - ?ion of ? od_nr ? od_desel asser ? ?ime t_? od_desel 2 ms ? aximum delay be? ween asser ?ion of ? od_desel and end of module response ? o 2-wire in ? erface com - munica ?ions ? od_desel de-asser ? ?ime t_? od_sel 2 ms ? aximum delay be? ween de-as - ser ?ion of ? od_desel and proper module response ? o 2-wire in ? er - face communica ?ions ? _down rese? ?ime ? _rese? 0 s ? in leng?h of ? -down asser ? ? o ini?ial rese? r ? _los ? sser ? delay t_loss_on 00 s ? rom occurrence of loss of signal ? o asser ?ion of r ? _los r ? _los nega ? e delay t_loss_of 2.3 00 s ? rom occurrence of presence of signal ? o nega ?ion of r ? _los serial id clock ra ? e f_serial_clock 0 400 khz
0 figure 5. xfp assembly drawing clip host board heat sink cage assembly module bezel emi gasket (not shown) connector case t emperature measurement point ?
digital diagnostic interface and serial identifcation the 2-wire serial in ? erface is explici ?ly defned in ?he ??? ?s? rev 4.0. 2-wire ? iming specifca ?ions and ?he s?ruc - ? ure of ?he memory map are per ??? ?s? rev 2.0. the normal 256 by ? e i2c address space is divided in ? o lower and upper blocks of 28 by ? es. the lower block of 28 by ? es is always direc ?ly available and is used for diagnos - ?ic informa ?ion providing ? he oppor ?uni? y for ? redic ? ive ? ailure iden ?ifca ?ion, compliance ? redic ?ion, ? aul? isola - ? ion and componen ? ? oni ? oring. the upper address space ? ables are used for less frequen ?ly accessed func - ?ions such as serial id, user wri ? eable ee? ro?, reserved ee? ro? and diagnos ?ics and con ? rol spaces for fu? ure s? andards defni?ion, as well as ? vago technologies-spe - cifc func ? ions. predictive failure identifcation the diagnos ?ic informa ?ion allows ? he hos? sys ? em ? o iden ?ify po? en ?ial link problems. once iden ? ifed, a fail over ? echnique can be used ? o isola ? e and replace sus - pec ? devices before sys? em up?ime is impac ? ed. compliance prediction the real- ?ime diagnos ?ic parame ? ers can be moni? ored ? o aler ? ? he sys ? em when opera ?ing limi?s are exceeded and compliance canno? be ensured. ? s an example, ? he real ? ime average receive op?ical power can be used ? o assess ?he compliance of ?he cable plan ? and remo ? e ? ransmi?? er. fault isolation the diagnos ?ic informa ?ion can allow ? he hos ? ? o pin - poin ? ? he loca ?ion of a link problem and accelera ? e sys - ? em servicing and minimize down ? ime. component monitoring ? s par ? of hos ? sys ? em qualifca ? ion and verifca ? ion, real ? ime ? ransceiver diagnos ? ic informa ? ion can be combined wi?h sys ? em level moni? oring ? o ensure per - formance and opera ?ing environmen ? are mee?ing ap - plica ?ion requiremen ? s. transceiver internal temperature tempera ? ure is measured on ? he ?? br-720 ?? dz us - ing sensing circui ? ry moun ? ed on ? he in ? ernal ? cb. the measured ? empera ? ure will generally be cooler ?han laser junc ?ion and warmer ? han ??? case and can be indirec ? ly correla ? ed ? o ??? case or laser junc ? ion ? empera ? ure using ? hermal resis ? ance and capaci? ance modeling. this measuremen ? can be used ? o observe drif ?s in ? hermal opera ?ing poin ? or ? o de? ec ? ex ? reme ? empera ? ure fuc ?ua ?ions such as a failure in ?he sys ? em ? hermal con ? rol. ? or more informa ? ion on correla ? ing in ? ernal ? empera ? ure ? o case or laser junc ?ion con ?ac ? ? vago technologies. transmitter laser dc bias current laser bias curren ? is measured using sensing circui ? ry loca ? ed on ?he ? ransmi?? er laser driver ic. normal varia - ?ions in laser bias curren ? are expec ? ed ? o accommoda ? e ? he impac ? of changing ? ransceiver ? empera ? ure and supply vol ? age opera ? ing poin ? s. the ?? br-720 ?? dz uses a closed loop laser bias feedback circui ? ? o main ?ain cons ?an ? op?ical power. this circui ? compensa ? es for nor - mal laser parame ? ric varia ?ions in quan ?um efciency, forward vol ?age and lasing ? hreshold due ? o changing ? ransceiver opera ?ing poin ? s. transmitted average optical output power varia ? ions in average op ? ical power are no ? expec ? ed under normal opera ? ion because ? he ?? br-720 ?? dz uses a closed loop laser bias feedback circui ? ? o main - ? ain cons ? an ? op ? ical power. this circui ? compensa ? es for normal laser parame ? ric varia ?ions due ? o changing ? ransceiver opera ?ing poin ? s. only under ex ? reme laser bias condi ? ions will signifcan ? drif ? ing in ? ransmi ?? ed average op?ical power be observable. therefore i? is rec - ommended tx average op?ical power be used for faul? isola ?ion, ra ?her ?han predic ? ive failure purposes. received average optical input power received average op ? ical power measuremen ? s are a valuable asse? for ins?allers ? o verify cable plan ? compli - ance. drif ?s in average power can be observed from ? he cable plan ? and remo ? e ? ransmi?? er for po? en ?ial predic - ? ive failure use. received average op?ical power can be used for faul? isola ?ion. auxilliary monitors in addi?ion ? o ?he parame ? ers men ?ioned above, 3.3v supply vol ?age ( ? u?) is also repor ? ed as auxilliary pa - rame ? er .
2 figure 6b. module drawing mechanical specifcations package dimensions figure 6a. module drawing
3 figure 7. xfp host board mechanical layout
4 application support ? n evalua ?ion ki ? and reference designs are available ? o assis? in evalua ?ion of ?he ??br-720??dz. ? lease con - ?ac ? your local ? ield sales represen ?a ? ive for availabili ? y and ordering de? ails. regulatory compliance the ? ransceiver regula ? ory compliance performance is provided in table 2 as a fgure of meri ? ? o assis ? ?he de - signer. the overall equipmen ? design will de? ermine ? he cer ?ifca ?ion level. regulatory compliance electrostatic discharge (esd) there are ? wo condi ? ions in which immuni ? y ? o esd damage is impor ?an ? . table 3 documen ?s ?he esd im - muni? y ? o bo?h of ?hese condi? ions. the frs? condi ?ion is s?a ?ic discharge ? o ?he ? ransceiver during handling such as when ?he ? ransceiver is inser ? ed in ? o ?he ? ransceiver por ? . to pro ? ec ? ? he ? ransceiver, i? is impor ?an ? ? o use normal esd handling precau ?ions in - cluding ?he use of grounded wris ? s? raps, work benches, and foor ma ?s in esd con ? rolled areas. the esd sensi - ?ivi? y of ?he ??br-720??dz is compa ?ible wi?h ? ypical indus? ry produc ?ion environmen ? s. the second condi ?ion is s?a ?ic discharge ? o ?he ex ? erior of ?he hos? equipmen ? chassis af ? er ins?alla ?ion. to ? he ex ? en ? ? ha ? ? he duplex lc op?ical in ? erface is exposed ? o ?he ou?side of ?he hos? equipmen ? chassis, i? may be subjec ? ? o sys? em-level esd requiremen ? s. the esd performance of ? he ?? br-720 ?? dz exceeds ? ypical indus? ry s? andards. feature test method performance elec ? ros?a ?ic discharge (esd) ? o ?he elec ? rical pins of ?he ??? module ? il-std-883 ? e?hod 305 500 vol ?s ? o ?he high speed pins, 2000 vol ?s ? o ?he low speed pins elec ? ros?a ?ic discharge (esd) ? o ?he duplex lc recep?acle varia ?ion of iec 6000-4-2 typically, no damage occurs wi?h 25 kv when ?he duplex lc connec ? or recep ?acle is con ?ac ? ed. elec ? ros?a ?ic discharge (esd) ? o ?he op?ical connec ? or gr089 8 kv on ?he elec ? rical facepla ? e wi?h device inser ? ed in ? o a panel. elec ? ros?a ?ic discharge (esd) ? o ?he op?ical connec ? or iec600-4-2 ? ir discharge of 5 kv(min) con ?ac ? ? o connec ? or w/o damage elec ? romagne?ic in ? erference (e?i) ? cc class b cenelec en55022 class b (cis ?r 22? ) vcci class sys ? em margins are dependen ? on cus? omer board and chassis design. immuni ? y varia ?ion of iec 6000-4-3 no bi? error a ? 0v/m, 0? hz ? o g w/o chassis enclosure laser eye safe? y and equipmen ? type tes ?ing us ?d ? cdrh ?el class us2 c?r, subchap? er j per ? aragraphs 002.0 and 002.2. (iec) en60825-: 994 + ?+?2 (iec) en60825-2: 994 + ? (iec) en60950: 992 + ? + ?2 + ?3 + ?4 + ? cdrh cer ?ifca ?ion # 97205-072 tuv cer ?ifca ?ion # r72074 componen ? recogni?ion underwri ? ers labora ? ories and canadian s ? andards ? ssocia ?ion join ? componen ? recogni?ion for infor - ma ?ion technology equipmen ? including elec ? rical business equipmen ? ul fle # e73874
immunity the ? ransceivers have a shielded design ? o provide excel - len ? immuni? y ? o radio-frequency elec ? romagne?ic felds which may be presen ? in some opera ?ing environmen ? s. electromagnetic interference (emi) ? os ? equipmen ? designs using ? he ?? br-720 ?? dz are subjec ? ? o ? he requiremen ? s of ? he ? cc in ? he uni ? ed s ?a ? es, cenelec en55022 (cis ?r 22) in europe and vcci in japan. the me?al housing and shielded design of ?he ?? br-720 ?? dz minimizes e ? i and provides excellen ? e?i performance. eye safety the ?? br-720??dz ? ransceivers provide class eye safe - ? y by design. ? vago technologies has ? es? ed ?he ? rans - ceiver design for regula ? ory compliance, under normal opera ?ing condi ?ions and under single faul? condi ? ions. see table 2. flammability the ??br-720??dz is complian ? ? o ul 94v-0. caution the ?? br-720??dz con ?ains no user serviceable par ? s. tampering wi ? h or modifying ? he performance of ? he ?? br-720 ?? dz will resul ? in voided produc ? warran ? y. i ? may also resul ? in improper opera ? ion of ? he ?? br- 720 ?? dz circui ? ry, and possible overs ? ress of ? he laser source. device degrada ?ion or produc ? failure may resul ? . connec ?ion of ?he ??br-720??dz ? o a non-approved op - ?ical source, opera ?ing above ? he recommended absolu? e maximum condi ?ions may be considered an ac ? of modi - fying or manufac ? uring a laser produc ? . the person(s) performing such an ac ? is required by law ? o recer ?ify and reiden ?ify ?he laser produc ? under ?he provisions of u.s. 2 c?r (subchap? er j) and ?he tuv. ordering information ? lease con ?ac ? your local feld sales engineer or one of ? vago technologies franchised dis ? ribu ? ors for order - ing informa ?ion. ? or ? echnical informa ?ion, please visi? ? vago technologies web page a ? www.avago ? ech.com or con ?ac ? ? vago technologies semiconduc ? or ? roduc ?s cus ? omer response cen ? er a ? -800-235-03 2. ? or in - forma ?ion rela ? ed ? o ??? ?s? documen ?a ?ion visi? www. 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, limited in the united states and other countries. data subject to change. copyright ? 2007 avago technologies limited. all rights reserved. av02-0438en - august 17, 2007

▲Up To Search▲

Price & Availability of AFBR-720XPDZ

	To Download AFBR-720XPDZ Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .