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afbr-2carxxz 10g ethernet sfp+ active optical cable (aoc) data sheet description the avago technologies afbr-2carxxz active opti - cal cable (aoc) is part of a family of sfp+ products to serve 10gb ethernet (10gbe) applications. the letters xx of the part number afbr-2carxxz denoted the cable length in meters. the afbr-2carxxz aoc enables 10gbe equipment designs with very high port density based on the new electrical and mechanical specifca - tion enhancements to the well known sfp specifcations developed by the sff committee. the specifcations are referred to as sfp+ to represent the enhancements over previous sfp specifcations. the sfp+ aoc have a cable length up to 20m. these aocs can be used as an alternative solution to sfp+ passive and active copper cables, while providing improved signal integrity, longer distances, superior electromagnetic immunity and bet - ter bit error rate performance. related products ? the afbr-703sdz (afbr-703asdz) is an sfp+ 10 gigabit ethernet 10gbase-sr transceiver with case temperature operated at 0-70 (0-85) c for use on multimode fber cables. it is best suited for om3 high bandwidth mmf link applications with link lengths up to 300 meters. ? afbr-707sdz sfp+ 10 gigabit ethernet 10gbase- lrm transceiver for 220 meter operation in all mmf link applications including om1 and om2 legacy fber cables and new high bandwidth om3 fber cables. ? the afbr-704sdz is an sfp+ transceiver for 10gbe 10gbase-usr applications with case temperature 0-70 c for use on multimode fber cables up to 100m. ? afct-5016z sfp+ evaluation board the purpose of this sfp+ evaluation board is to provide the designer with a convenient means for evaluating sfp+ fber optic transceivers. features ? proven high reliability 850 nm technology: avago vcsel transmitter and avago pin receiver ? maximum power dissipation 350mw per active cable end ? avago sfp+ package design enables equipment emi performance in high port density applications with margin to class b limits specifcations ? electrical specifcations per sff-8431 specifcations for enhanced small form factor pluggable module sfp+ ? 0 to 70 c case temperature operating range ? rx_los and tx_disable supported ? mechanical specifcations per sff committee sff 8432 improved pluggable formfactor ipf ? compliant to restriction on hazardous substances (rohs) per eu and china requirements ? class 1 eye safe per requirement of en 60825-1 2007, en 60825-2 a2 2010 ? 1e-15 ber performance applications ? 1/10 gigabit ethernet (1/10gbe) ? 1/2/4/8g fibre channel (1/2/4/8gfc), fibre channel over ethernet (fcoe) ? infniband (qdr/ddr/sdr) ? data center networking - converged enhanced ethernet data centers - data center bridging ? networked storage systems ? high performance computing ? proprietary interconnects patent - www.avagotech.com/patents
2 installation the afbr-2carxxz active optical cable package is com - pliant with the sff-8432 improved pluggable formfac - tor housing specifcation for the sfp+. it can be installed in any inf-8074 or sff-8431/2 compliant small form pluggable (sfp) port regardless of host equipment op - erating status the afbr-2carxxz is hot-pluggable, al - lowing both active cable ends to be installed while the host system is operating and on-line. upon insertion, the housing makes initial contact with the host board sfp cage, mitigating potential damage due to electro-static discharge (esd). digital interface and serial identifcation the two-wire interface protocol and signaling detail are based on sff-8431. conventional eeprom memory, bytes 0-255 at memory address 0xa0, is organized in compliance with sff-8431. the eeprom contents of afbr-2carxxz are such that it can directly replace the active copper cable. transmitter section the transmitter section includes an 850 nm vcsel (verti - cal cavity surface emitting laser) light source designed and manufactured by avago technologies. the vcsel is driven by an ic which uses the incoming diferential high speed logic signal to modulate the laser diode driver current. this tx laser driver circuit regulates the optical power at a constant level provided the incoming data pattern is dc balanced. dc blocking capacitors are lo - cated inside the aoc package and are not required on the system board. transmit disable (tx_disable) each end of the afbr-2carxxz aoc has a tx_disable hardware pin, which accepts an input lvttl compatible control signal that shuts down the transmitter optical output. a logic high signal implements the transmitter disable function, while a low signal allows normal trans - mitter operation. an internal pull up resistor disables the transmitter until the host pulls the input low. receiver section the receiver section includes a pin photodiode and cus - tom amplifcation and quantization ic. dc blocking ca - pacitors are located inside the aoc package and are not required on the system board. receiver loss of signal (rx_los) the rx portion of the ic includes detection circuitry which monitors the average input rx optical power and provides a lvttl/cmos compatible status signal to the host via the rx_los pin. a logic high status on this rx_ los output pin indicates a loss of signal, indicating a link failure such as a broken fber, or the far-end cable-end is not plugged in, or the far-end tx has failed or has been disabled. functional data i/o the afbr-2carxxz interfaces with the host circuit board through the twenty contact sfp+ electrical connector. see table 2 for contact descriptions. the device edge connector is shown in figure 2. the afbr-2carxxz high speed transmit and receive in - terfaces require sff-8431 compliant signal lines on the host board. the tx_disable and rx_los signals require lvttl signals on the host board (per sff-8431) if used. if an application does not take advantage of these func - tions, care must be taken to ground tx_disable to en - able normal operation. part number description AFBR-2CAR01Z 1 meter sfp+ active optical cable afbr-2car02z 2 meter sfp+ active optical cable afbr-2car03z 3 meter sfp+ active optical cable afbr-2car05z 5 meter sfp+ active optical cable afbr-2car07z 7 meter sfp+ active optical cable afbr-2car10z 10 meter sfp+ active optical cable afbr-2car15z 15 meter sfp+ active optical cable afbr-2car20z 20 meter sfp+ active optical cable afct-5016z sfp+ evaluation board
3 application support an evaluation kit and reference designs are available to assist in evaluation of the afbr-2carxxz. please contact your local field sales representative for availability and ordering details. caution there are no user serviceable parts nor maintenance requirements for the afbr-2carxxz. all mechanical adjustments are made at the factory prior to shipment. tampering with, modifying, misusing or improperly han - dling the afbr-2carxxz will void the product warranty. it may also result in improper operation and possibly overstress the device. performance degrada tion or de - vice failure may result. operating above maximum op - erating conditions or in a manner inconsistent with its design and function may result in exposure to hazardous light radiation and may constitute an act of modifying or manufacturing a laser product. persons performing such an act are required by law to recertify and re-identify the laser product under the provisions of u.s. 21 cfr (sub - chapter j) and tuv. customer manufacturing processes this aoc is pluggable and is not designed for aqueous wash, ir refow, or wave soldering processes. ordering information please contact your local feld sales engineer or one of avago technologies franchised distributors for ordering information. for technical information, please visit ava - go technologies web page at www.avagotech.com. for information related to sff committee documentation visit www.sfcommittee.org. regulatory compliance the afbr-2carxxz complies with all applicable laws and regulations as detailed in table 1. certifcation level is dependent on the overall confguration of the host equipment. the aoc performance is ofered as a fgure of merit to assist the designer. electrostatic discharge (esd) the afbr-2carxxz is compatible with esd levels found in typical manufacturing and operating environments as described in table 1. in the normal handling and opera - tion of optical cables, esd is of concern in two circum - stances. the frst case is during handling of the aoc prior to inser - tion into an sfp+ compliant cage. to protect the device, its important to use normal esd handling pre-cautions. these include use of grounded wrist straps, work-bench - es and foor wherever a optical cable is handled. the second case to consider is static discharges to the exterior of the host equipment chassis after installation. if the optical interface is exposed to the exterior of host equipment cabinet, the optical cable may be subject to system level esd requirements. electromagnetic interference (emi) equipment incorporating 10 gigabit transceivers or ac - tive optical cables is typically subject to regulation by the fcc in the united states, cenelec en55022 (cispr 22) in europe and vcci in japan. the afbr-2carxxz enables equipment compliance to these standards detailed in table 1. the metal housing and shielded design of the afbr-2carxxz minimizes the emi challenge facing the equipment designer. for superior emi performance it is recommended that equipment designs utilize sfp+ cages per sff 8432. rf immunity (susceptibility) the emi immunity of the afbr-2carxxz exceeds typical industry standards. eye safety the afbr-2carxxz provides class 1 (single fault toler - ant) eye safety by design and has been tested for com - pliance with the requirements listed in table 1. the eye safety circuit continuously monitors the optical output power level and will disable the transmitter upon de - tecting a condition beyond the scope of class 1 certif - cation. such conditions can be due to inputs from the host board (vcc fuctuation, unbalanced code) or a fault within the transceiver. us cdrh and eu tuv certifcates are listed in table 1. flammability the afbr-2carxxz optical cable is made of metal and high strength, heat resistant, chemical resistant and ul 94v-0 fame retardant plastic.
4 table 1. regulatory compliance feature test method performance electrostatic discharge (esd) to the electrical contacts mil-std-883c method 3015.4 class 1 (> 2000 volts) life trafc esd immunity iec 61000-4-2 10 contacts of 8 kv on the electrical faceplate with device inserted into a panel. life trafc esd immunity iec 61000-4-2 air discharge of 15 kv (min.) contact to con - nector without damage. electromagnetic interference (emi) fcc class b cenelec en55022 class b (cispr 22a) vcci class a system margins are dependent on customer board and chassis design. rf immunity iec 61000-4-3 typically shows no measurable efect from a 10 v/m feld swept from 80mhz to 1 ghz laser eye safety and equipment type testing en 60825-1 2007, en 60825-2 a2:2010 p out : iec ael & us fda cdrh class 1 component recognition underwriters laboratories and canadian stan - dards association joint component recogni - tion for information technology equipment including electrical business equipment rohs compliance rohs directive 2002/95/ec and its amend - ment directives 6/6 sgs test report no. lpc/13392 (ad-1)/07 cts ref. cts/07/3283/avago flammability module: ul 94v-0 cable: ofnr bauart gepruft type approved tuv rheinland product safety figure 1. recommended power supply flter 4.7 h 4.7 h 0.1 f v cc r sfp+ aoc end 22 f v cc t 0.1 f 0.1 f 3.3 v host board 0.1 f note: inductors must have less than 1 series resistance to limit voltage drop to the sfp module. 22 f
5 table 2. contact description contact symbol function/description notes 1 veet transmitter signal ground note 1 2 tx_fault transmitter fault (lvttl-o) C not used. grounded inside the module note 2 3 tx_disable transmitter disable (lvttl-i) C high or open disables the transmitter note 3 4 sda two wire serial interface data line (lvcmos C i/o) (same as mod-def2 in inf-8074) note 4 5 scl two wire serial interface clock line (lvcmos C i/o) (same as mod-def1 in inf-8074) note 4 6 mod_abs module absent (output), connected to veet or veer in the module note 5 7 rs0 rate select 0 - not used, presents high input impedance. 8 rx_los receiver loss of signal (lvttl-o) note 2 9 rs1 rate select 1 - not used, presents high input impedance. 10 veer receiver signal ground note 1 11 veer receiver signal ground note 1 12 rd- receiver data out inverted (cml-o) 13 rd+ receiver data out (cml-o) 14 veer receiver signal ground 15 vccr receiver power + 3.3 v 16 vcct transmitter power + 3.3 v 17 veet transmitter signal ground note 1 18 td+ transmitter data in (cml-i) 19 td- transmitter data in inverted (cml-i) 20 veet transmitter signal ground note 1 notes: 1. the module signal grounds are isolated from the module case. 2. this is an open collector/drain output that on the host board requires a 4.7 k to 10 k pullup resistor to vcchost. see figure 2. 3. this input is internally biased high with a 4.7 k to 10 k pullup resistor to vcct. 4. two-wire serial interface clock and data lines require an external pullup resistor dependent on the capacitance load. 5. this is a ground return that on the host board requires a 4.7 k to 10 k pullup resistor to vcchost. figure 2. module edge connector contacts t op vie w of bo ard 11 20 10 1 t ow ard host bo t t om of bo ard as vie wed from t op through bo ard
6 table 3. absolute maximum ratings stress in excess of any of the individual absolute maximum ratings can cause immediate catastrophic damage to the module even if all other parameters are within recommended operating conditions. it should not be assumed that limiting values of more than one parameter can be applied concurrently. exposure to any of the absolute maximum ratings for extended periods can adversely afect reliability. parameter symbol minimum maximum unit notes storage temperature t s -40 85 c relative humidity rh 5 95 % supply voltage vcct, vccr -0.3 3.8 v note 1 low speed input voltage -0.5 vcc+0.5 v two-wire interface input voltage -0.5 vcc+0.5 v high speed input voltage, single ended -0.3 vcc+0.5 v high speed input voltage, diferential 2.5 v low speed output current -20 20 ma table 4. recommended operating conditions recommended operating conditions specify parameters for which the electrical and optical characteristics hold unless other - wise noted. optical and electrical charactristics are not defned for operation outside the recommended operating conditions, reliability is not implied and damage to the module may occur for such operation over an extended period of time. parameter symbol minimum maximum unit notes case operating temperature t c 0 70 c note 2 module supply voltage vcct, vccr 3.135 3.465 v figure 3 host supply voltage vcchost 3.14 3.46 v signal rate 1-10.3125 gbd -100 100 ppm power supply noise tolerance 66 10hz to 10mhz figure 3 tx input single ended dc voltage tolerance (ref veet) v -0.3 4.0 v rx output single ended voltage tolerance v -0.3 4.0 v bend radius 30 mm table 5. low speed signal electrical characteristics the following characteristics are defned over the recommended operating conditions unless otherwise noted. typical values are for tc = 40c. vcct and vccr = 3.3 v. parameter symbol minimum typical maximum unit notes module supply current i cc 83 107 ma note 3 power dissipation p diss 275 350 mw note 4 tx_fault, rx_los i oh - 50 + 37.5 m a note 5 v ol - 0.3 0.4 v tx_disable v ih 2.0 vcct + 0.3 v note 6 v il -0.3 0.8 v notes: 1. the module supply voltages, vcct and vccr must not difer by more than 0.5 v or damage to the device may occur. 2. ambient operating temperature limits are based on the case operating temperature limits and are subject to the host system thermal design. 3. supply current includes both vcct and vccr connections. 4. per port 5. measured with a 4.7 k load to vcchost. 6. tx_disable has an internal 4.7 k to 10 k pull-up to vcct
7 table 6. high speed signal electrical characteristics the following characteristics are defned over the recommended operating conditions unless otherwise noted. typi - cal values are for tc = 40c. vcct and vccr = 3.3 v. parameter symbol minimum typical maximum unit notes tx input diferential voltage (td +/-) v i 180 700 mv note 1; see figure 3b tx input mask see figure 3b tx input ac common mode voltage tolerance 15 mv (rms) tx input diferential s-parameter (100 ref.) sdd11 note 3 tx input diferential to common mode conversion (25 ref.) scd11 -10 db 0.01-11.1 ghz rx output diferential voltage (rd +/-) vo 300 850 mv note 2 rx output termination mismatch @ 1mhz d z m 5 % rx output ac common mode voltage 7.5 mv (rms) note 5 rx output output rise and fall time (20% to 80%) tr, tf 28 ps rx output total jitter tj 0.70 ulp-p note 7 rx output deterministic jitter dj 0.42 ulp-p rx output diferential s-parameter sdd22 note 4 rx output common mode refection coefcient (25 ref.) scc22 note 6 -3 db db 0.01-2.5 ghz 2.5-11.1 ghz receiver output eye mask see figure 3b notes: 1. internally ac coupled and terminated (100 ohm diferential). 2. internally ac coupled but requires an external load termination (100 ohm diferential). 3. maximum refection coefcient is expressed as sdd11=max(-12+2*sqrt(f ) , -6.3+13*log10(f/5.5)), for f in ghz. 4. maximum refection coefcient is expressed as sdd22=max(-12+2*sqrt(f ) , -6.3+13*log10(f/5.5)), for f in ghz. 5. the rms value is measured by calculating the standard deviation of the histogram for one ui of the common mode signal. 6. maximum refection coefcient given by equation scc22(db) < -7 + 1.6 f, with f in ghz. 7. tj measured at 1e-12 figure 3a. receiver electrical optical eye mask defnition figure 3b. transmitter diferential input compliance mask at b 150 0 -150 -425 0 0.35 1.0 0.65 absolute amplitude - mv normalized time (unit interval) 425 -350 -95 0 95 350 0.0 0.12 0.33 0.67 0.88 1.0 normalized time (unit interval) voltage - mv
8 table 7. two-wire interface electrical characteristics parameter symbol minimum maximum unit conditions host vcc range vcchtwi 3.135 3.465 v scl and sda v ol 0.0 0.40 v rp [1] pulled to vcchtwi, measured at host side of connector v oh vcchtwi - 0.5 vcchtwi + 0.3 v scl and sda v il -0.3 vcct*0.3 v v ih vcct*0.7 vcct + 0.5 v input current on the scl and sda contacts i l -10 10 a capacitance on scl and sda contacts c i [2] 14 pf total bus capacitance for scl and for sda c b [3] 100 pf at 400 khz, 3.0 k rp, max at 100 khz, 8.0 k rp, max 290 pf at 400 khz, 1.1 krp, max at 100 khz, 2.75 k rp, max notes: 1. rp is the pull up resistor. active bus termination may be used by the host in place of a pullup resistor. pull ups can be connected to various power supplies, however the host board design shall ensure that no module contact has voltage exceeding vcct or vccr by 0.5 v nor requires the module to sink more than 3.0 ma current. 2. c i is the capacitance looking into the module scl and sda contacts 3. c b is the total bus capacitance on the scl or sda bus. table 8. control functions: low speed signals timing characteristics parameter symbol maximum units notes time to initialize t_inti 300 ms note 1 tx_disable assert + rx_los assert time t_los_on 110 us note 2 tx_disable negate + rx_los deassert time t_los_of 2.1 ms note 3 notes: 1. time from power on or falling edge of tx_disable to when the modulated optical output rises above 90% of nominal (not measurable in the active optical cable) and the two-wire interface is available. 2. the maximum time between (a) when the near-end aoc-end has tx_disable asserted until (b) rx_los is declared/asserted on the far-end aoc-end. there is also a small delay for the signal transit time through the optical cable, however, this is a small efect: light propagating through fber ~ 5ns per meter. a 10 ms interval between assertions of tx_disable is required. 3. the maximum time between (a) when the near-end aoc-end has tx_disable negated until (b) rx_los is deasserted on the far-end aoc-end. there is also a small delay for the signal to transit time through the optical cable, however, this is a small efect: light propagating through fber ~ 5 ns per meter
9 table 9. eeprom serial id memory contents C address a0h page a0h only, per sff-8472 revision 11.0 byte # decimal byte # hex default value (hex) notes type 0 0 03 physical device sfp/sfp+ = 03h read-only 1 1 04 two wire serial interface function = 04h read-only 2 2 21 copper pigtail read-only 3 3 00 not applicable read-only 4 4 00 not applicable read-only 5 5 00 not applicable read-only 6 6 00 not applicable read-only 7 7 00 unspecifed read-only 8 8 08 active cable read-only 9 9 00 unspecifed read-only 10 a 00 unspecifed read-only 11 b 00 unspecifed read-only 12 c 67 10312.5 mb/s nominal rate = 67h read-only 13 d 00 rate select not implemented read-only 14 e 00 not applicable read-only 15 f 00 not applicable read-only 16 10 00 not applicable read-only 17 11 00 not applicable read-only 18 12 link length cable, units of meters (decimal) read-only 19 13 00 not applicable read-only 20 14 41 a - vendor name ascii character read-only 21 15 56 v - vendor name ascii character read-only 22 16 41 a - vendor name ascii character read-only 23 17 47 g - vendor name ascii character read-only 24 18 4f o - vendor name ascii character read-only 25 19 20 - vendor name ascii character read-only 26 1a 20 - vendor name ascii character read-only 27 1b 20 - vendor name ascii character read-only 28 1c 20 - vendor name ascii character read-only 29 1d 20 - vendor name ascii character read-only 30 1e 20 - vendor name ascii character read-only 31 1f 20 - vendor name ascii character read-only 32 20 20 - vendor name ascii character read-only 33 21 20 - vendor name ascii character read-only 34 22 20 - vendor name ascii character read-only 35 23 20 - vendor name ascii character read-only 36 24 00 not used read-only 37 25 00 hex byte of vendor oui[1] read-only 38 26 17 hex byte of vendor oui[1] read-only 39 27 6a hex byte of vendor oui[1] read-only
10 table 9. eeprom serial id memory contents C address a0h (cont.) byte # decimal byte # hex default value (hex) notes type 40 28 41 a - vendor part number ascii character read-only 41 29 46 f - vendor part number ascii character read-only 42 2a 42 b - vendor part number ascii character read-only 43 2b 52 r - vendor part number ascii character read-only 44 2c 2d - - vendor part number ascii character read-only 45 2d 32 2 - vendor part number ascii character read-only 46 2e 43 c - vendor part number ascii character read-only 47 2f 41 a - vendor part number ascii character read-only 48 30 52 r - vendor part number ascii character read-only 49 31 x cable length in meters - vendor part number ascii character read-only 50 32 x cable length in meters - vendor part number ascii character read-only 51 33 5a z - vendor revision number ascii character read-only 52 34 20 - vendor part number ascii character read-only 53 35 20 - vendor part number ascii character read-only 54 36 20 - vendor part number ascii character read-only 55 37 20 - vendor part number ascii character read-only 56 38 20 - vendor revision number ascii character read-only 57 39 20 - vendor revision number ascii character read-only 58 3a 20 - vendor revision number ascii character read-only 59 3b 20 - vendor revision number ascii character read-only 60 3c 04 compliant to sff-8431 limiting = 04h read-only 61 3d 00 not applicable read-only 62 3e 00 not used read-only 63 3f checksum (hex lsb only) bytes 0-62[2] read-only 64 40 00 uncooled laser. power level 1 operation (1.0 watt max). limiting receiver output. = 00h read-only 65 41 12 tx_disable implemented & sfp rx_los implemented = 12h read-only 66 42 00 not specifed read-only 67 43 00 not specifed read-only 68-83 44-53 vendor serial number ascii characters[3] read-only 84-91 54-5b vendor date code ascii characters[4] read-only 92 5c 00 no diagnostics = 00h read-only 93 5d 00 no enhanced options = 00h read-only 94 5e 00 unspecifed read-only 95 5f checksum (hex lsb only) bytes 64-94[2] read-only 96-255 60-ff 00 vendor specific id fields read-only notes: 1. the ieee organizationally unique identifer (oui) assigned to avago technologies is 00-17-6a (3 bytes hex). 2. addresses 63 and 95 are checksums calculated (per sff-8472) and stored prior to product shipment. 3. addresses 68-83 specify the afbr-2carxxz ascii serial number and will vary on a per unit basis. 4. addresses 84-91 specify the afbr-2carxxz ascii date code and will vary on a per date code basis.
11 figure 4. module drawing measurement minimum maximum units comments insertion 0 18 n extraction 0 12.5 n retention 90 170 n no functional damage to device below 90n front-1 top-1 bottom-1 65 30 2.550.1 1.40.1 51 8.60.1 20.1 color tag label right-1 15.2 uncompressed t_case reference point
for product information and a complete list of distributors, please go to our website: www.avagotech.com avago, avago technologies, and the a logo are trademarks of avago technologies in the united states and other countries. data subject to change. copyright ? 2005-2014 avago technologies. all rights reserved. av02-4397en - march 21, 2014 table 11. optical fiber specifcations parameter specifcation tight bufer color orange, yellow tight bufer material pvc tight bufer diameter mm 0.60 0.05 fiber type 62.5/125 (ofs) bandwith:160 mhz.km @ 850 nm strength member aramid yarns jacket color orange jacket material pvc cable diameter mm 3.0 0.1 cable weight kg/km 7.0 min. bending radius mm 30 attenuation db/km 3.5 at 850 nm 1.5 at 1300 nm short tension n 120 short crush n/100mm 500 operation temperature c -20~70 figure 6. optical fber details optical ber tight layer aramid yarns jacket 78.7 r30 ?3 13.8 13.65 figure 5. bend radius defnition length cable length tolerance 1 m +20/-0 cm 2 m +20/-0 cm 3 m +20/-0 cm 5 m +20/-0 cm 7 m +20/-0 cm 10 m +20/-0 cm 15 m +2%/-0 cm 20 m +2%/-0 cm note: cable length is defned as the length of the fber only (not including the sfp+ module-ends). table 10. sfp+ aoc cable assembly length tolerances

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