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features ? avago 850nm vcsel source and transmitter optical subassembly technology ? avago pin detector and receiver optical subassembly technology ? typical power dissipation 600mw ? full digital diagnostic management interface ? avago sfp+ package design enables equipment emi performance in high port density applications with margin to class b limits specifcations ? optical interface specifcations per ieee 802.3ae 10gbase-sr ? electrical interface specifcations per sff committee sff 8431 specifcations for enhanced 8.5 and 10 gigabit small form factor pluggable module sfp+ ? management interface specifcations per sff committee sff 8431 and sff 8472 diagnostic monitoring interface for optical transceivers ? lc duplex optical connector interface confrming to ansi tia/ea 604-10 (focis 10a) ? compliant to restriction on hazardous substances (rohs) per eu and china requirements ? class 1 eye safe per requirements of iec 60825-1 / cdrh description the avago AFBR-703SNZ transceiver is with a mini-sfp+ (msfp+) form factor that is smaller than the standard sfp+ form factor defned by the sff 8432 mechanical specs. this product is part of a family of sfp+ products, but can be used for even higher density 10gb ethernet application than what the sfp+ form factor can serve to - day. both the msfp+ and the sfp+ form factors share the same management interface specs and optical specs. both the msfp+ sr transceiver and the sfp+ sr transceiver utilize avagos 850nm vcsel and pin detec - tor technology to provide an ieee 10gbe design compli - ant with the 10gbase-sr standard. related products ? the afbr-703sdz (afbr-703asdz) is a 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. ? the afbr-707sdz (afbr-707asdz) is a 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 afct-701sdz (afct-701asdz) is a sfp+ 10 gigabit ethernet 10gbase-lr transceiver with case temperature 0-70 (0-85) c for operation in smf link applications to 10 km AFBR-703SNZ 10gb ethernet, 850 nm, 10gbase-sr, mini-sfp+ (msfp+) transceiver data sheet patent - www.avagotech.com/patents
2 installation the AFBR-703SNZ transceiver package is compliant with the sff 8432 improved pluggable formfactor 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 operating status the AFBR-703SNZ is hot-pluggable, allowing the mod - ule to be installed while the host system is operating and on-line. upon insertion, the transceiver housing makes initial contact with the host board sfp cage, mitigating potential damage due to electro-static discharge (esd). digital diagnostic interface and serial identifcation the two-wire interface protocol and signaling detail are based on sff-8431. conventional eeprom memo - ry, bytes 0-255 at memory address 0xa0, is organized in compliance with sff-8431. new digital diagnostic information, bytes 0-255 at memory address 0xa2, is compliant to sff-8472. the new diagnostic information provides the opportunity for predictive failure identif - cation, compliance prediction, fault isolation and com - ponent monitoring. predictive failure identifcation the AFBR-703SNZ predictive failure feature allows a host to identify potential link problems before system perfor - mance is impacted. prior identifcation of link problems enables a host to service an application via fail over to a redundant link or replace a suspect device, main - taining system uptime in the process. for applications where ultra-high system uptime is required, a digital sfp provides a means to monitor two real-time laser metrics asso ciated with observing laser degradation and pre - dicting failure: average laser bias current (tx_bias) and average laser optical power (tx_power). compliance prediction compliance prediction is the ability to determine if an optical transceiver is operating within its operating and environmental requirements. AFBR-703SNZ devices provide real-time access to transceiver internal supply voltage and temperature, allowing a host to identify po - tential component compliance issues. received optical power is also available to assess compliance of a cable plant and remote transmitter. when operating out of re - quirements, the link cannot guarantee error free trans - mission. fault isolation the fault isolation feature allows a host to quickly pin - point the location of a link failure, minimizing downtime. for optical links, the ability to identify a fault at a local device, remote device or cable plant is crucial to speed - ing service of an installation. AFBR-703SNZ real-time monitors of tx_bias, tx_power, vcc, temperature and rx_power can be used to assess local transceiver current operating conditions. in addition, status fags tx_dis - able and rx loss of signal (los) are mirrored in memory and available via the two-wire serial interface. component monitoring component evaluation is a more casual use of the af - br-703snz real-time monitors of tx_bias, tx_power, vcc, temperature and rx_power. potential uses are as debugging aids for system installation and design, and transceiver parametric evaluation for factory or feld qualifcation. for example, temperature per module can be observed in high density applications to facilitate thermal evaluation of blades, pci cards and systems. description, continued
3 figure 1. transceiver functional diagram transmit fault (tx_fault) a catastrophic laser fault will activate the transmitter signal, tx_fault, and disable the laser. this signal is an open collector output (pull-up required on the host board). a low signal indicates normal laser operation and a high signal indicates a fault. the tx_fault will be latched high when a laser fault occurs and is cleared by toggling the tx_disable input or power cycling the transceiver. the transmitter fault condition can also be monitored via the two-wire serial interface (address a2, byte 110, bit 2). transmitter section the transmitter section includes the transmitter opti - cal sub-assembly (tosa) and laser driver circuitry. the tosa, containing an avago designed and manufactured 850 nm vcsel (vertical cavity surface emitting laser) light source, is located at the optical interface and mates with the lc optical connector. the tosa 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 con - stant level provided the incoming data pattern is dc bal - anced. transmit disable (tx_disable) the AFBR-703SNZ accepts an lvttl compatible trans - mit disable control signal input which shuts down the transmitter optical output. a high signal implements this function while a low signal allows normal transceiver op - eration. in the event of a fault (e.g. eye safety circuit ac - tivated), cycling this control signal resets the module as depicted in figure 6. an internal pull up resistor disables the transceiver transmitter until the host pulls the input low. tx_disable can also be asserted via the two-wire interface (address a2h, byte 110, bit 6) and monitored (address a2h, byte 110, bit 7). the contents of a2h, byte 110, bit 6 are logic ord with hardware tx_disable (contact 3) to control transmitter operation. light from fiber light to fiber photo-detector receiver amplification & quantization rd+ (receive data) rd? (receive data) rx_los vcsel transmitter laser driver & safety circuitry tx_disable td+ (transmit data) td? (transmit data) tx_fault electrical interface sda scl mod-abs controller & memory optical interface rs0 rs1
4 receiver section the receiver section includes the receiver optical sub - assembly (rosa) and the amplifcation/quantization cir - cuitry. the rosa, containing a pin photodiode and cus - tom transimpedance amplifer, is located at the optical interface and mates with the lc optical connector. the rosa output is fed to a custom ic that provides post- amplifcation and quantization. receiver loss of signal (rx_los) the post-amp ic also includes transition detection cir - cuitry which monitors the ac level of incoming optical signals and provides a lvttl/cmos compatible status signal to the host. a high status signal indicates loss of modulated signal, indicating link failures such as broken fber or failed transmitter. rx_los can also be monitored via the two-wire serial interface(address a2h, byte 110, bit 1). functional data i/o the AFBR-703SNZ interfaces with the host circuit board through the twenty contact sfp+ electrical connector. see table 2 for contact descriptions. the module edge connector is shown in figure 4. the host board layout for this interface is depicted in figure 8. the AFBR-703SNZ high speed transmit and receive in - terfaces require sff-8431 compliant signal lines on the host board. to simplify board requirements, biasing re - sistors and ac coupling capacitors are incorpo rated into the sfp+ transceiver module (per sff-8431) and hence are not required on the host board. the tx_disable, tx_ fault 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 tak - en to ground tx_disable to enable normal operation. figure 2 depicts the recom mended interface circuit to link the AFBR-703SNZ to supporting physical layer ics. timing for the dedicated sfp+ control signals imple - mented in the transceiver are listed in figure 6. application support an evaluation kit and reference designs are available to assist in evaluation of the AFBR-703SNZ. 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-703SNZ. all mechanical ad - justments are made at the factory prior to shipment. tampering with, modifying, misusing or improperly han - dling the AFBR-703SNZ will void the product warranty. it may also result in improper operation and possibly over - stress the laser source. performance degrada tion or de - vice failure may result. connection of the AFBR-703SNZ to a light source not compliant with ieee std. 802.3ae clause 52 and sff-8341 specifcations, operating above maximum operating conditions or in a manner inconsis - tent 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 (subchapter j) and tuv. customer manufacturing processes this module is pluggable and is not designed for aque - ous 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.
5 electromagnetic interference (emi) equipment incorporating 10 gigabit transceivers is typically subject to regulation by the fcc in the united states, cenelec en55022 (cispr 22) in europe and vcci in japan. the AFBR-703SNZ enables equipment compli - ance to these standards detailed in table 1. the metal housing and shielded design of the AFBR-703SNZ mini - mizes 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) due to its shielded design, the emi immunity of the af - br-703snz exceeds typical industry standards. eye safety the AFBR-703SNZ provides class 1 (single fault tolerant) eye safety by design and has been tested for compliance with the requirements listed in table 1. the eye safety circuit continuously monitors the optical output power level and will disable the transmitter upon detecting a condition beyond the scope of class 1 certifcation 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-703SNZ optical transceiver is made of metal and high strength, heat resistant, chemical resistant and ul 94v-0 fame retardant plastic. regulatory compliance the AFBR-703SNZ 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 transceiver performance is ofered as a fgure of merit to assist the designer. electrostatic discharge (esd) the AFBR-703SNZ is compatible with esd levels found in typical manufacturing and operating environments as described in table 1. in the normal handling and op - eration of optical transceivers, esd is of concern in two circumstances. the frst case is during handling of the transceiver prior to insertion 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-benches and foor wherever a transceiver is han - dled. 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 transceiver may be subject to system level esd requirements.
6 table 1. regulatory compliance feature test method performance electrostatic discharge (esd) mil-std-883c class 1 (> 2000 volts) to the electrical contacts method 3015.4 electrostatic discharge (esd) iec 61000-4-2 typically, no damage occurs with 25 kv when to the duplex lc receptacle the duplex lc connector receptacle is contacted by a human body model probe. 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 connector without damage. electromagnetic fcc class b system margins are dependent on customer interference (emi) cenelec en55022 class b board and chassis design. (cispr 22a) vcci class a 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 us fda cdrh ael class 1 cdrh accession no. 9720151-072 equipment type testing us21 cfr, subchapter j per tuv file r 72071411 page 2 paragraphs 1002.10 and 1002.12 (iec) en60825-1: 1994 + a11 + a2 (iec) en60825-2: 1994 + a1 (iec) en60950: 1992 + a1 + a2 + a3 + a4 + a11 component recognition underwriters laboratories and canadian ul fle e173874 standards association joint component recognition for information technology equipment including electrical business equipment rohs compliance rohs directive 2002/95/ec and sgs test report no. lpc/13392 (ad-1)/07 its amendment directives 6/6 cts ref. cts/07/3283/avago bauart gepruft type approved tuv rheinland product safety
7 figure 2. typical application confguration. figure 3. recommended power supply flter. 4.7 h 4.7 h 0.1 f v cc r sfp module 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 laser driver module detect loss of signal scl sda tx_fault tx_disable td+ tx fault tx dis td- rd+ rd- mod_def2 mod_def1 mod_def0 gnd,r 4.7 k to 10 k 50 50 4.7 k to 10 k 4.7 k to 10 k protocol ic v cc ,t v cc ,t v cc ,r f 3.3 v serdes ic rx los gnd,t 0.1 f 0.1 f post amplifier 100 4.7 k to 10 k 100 10 k 0.1 f v cc ,r 0.1 f 4.7 k to 10 k v cc ,r 4.7 h 22 f 3.3 v 4.7 h 0.1 f 0.1 f 22 f 0.1 f 0.1 f
8 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. table 2. contact description contact symbol function/description notes 1 veet transmitter signal ground note 1 2 tx_fault transmitter fault (lvttl-o) C high indicates a fault condition 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 figure 4. 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
9 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 maxi - mum ratings for extended periods can adversely afect reliability. parameter symbol minimum maximum unit notes storage temperature t s -40 100 c case operating temperature t c -40 100 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 optical receiver input average power 0 dbm note; 1. the module supply voltages, vcct and vccr must not difer by more than 0.5 v or damage to the device may occur. table 4. recommended operating conditions recommended operating conditions specify parameters for which the electrical and optical characteristics hold unless otherwise noted. optical and electrical charactristics are not defned for operation outside the recommend - ed 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 1 module supply voltage vcct, vccr 3.135 3.465 v fig. 3 host supply voltage vcchost 3.14 3.46 v signal rate 10.311 10.313 gbd power supply noise tolerance 66 10hz to 10mhz mvp-p fig. 3 tx input single ended dc v -0.3 4.0 v voltage tolerance (ref veet) rx output single ended voltage tolerance v -0.3 4.0 v notes: 1. ambient operating temperature limits are based on the case operating temperature limits and are subject to the host system thermal design. see figure 7 for the module tc reference point.
10 table 6. high 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 tx input diferential voltage (td +/-) v i 180 700 mv note 1 tx input ac common mode voltage tolerance 15 mv(rms) tx input diferential s-parameter (100 ref.) sdd11 -10 db 0.01-1.0 ghz note 4 db 1.0-11.1 ghz tx input diferential to common scd11 -10 db 0.01-11.1 ghz mode conversion (25 ref.) 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 tr, tf 28 ps (20% to 80%) rx output total jitter tj 0.70 ulp-p rx output deterministic jitter dj 0.42 ulp-p rx output diferential s-parameter sdd22 -12 db 0.01-1.0 ghz (100 ref.) note 5 db 1.0-11.1 ghz rx output common mode refection scc22 -6 db 0.01-2.5 ghz coefcient (25 ref.) -3 db 2.5-11.1 ghz receiver output eye mask see figure 5a 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. 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 180 289 ma note 1 power dissipation p diss 600 1000 mw tx_fault, rx_los i oh - 50 + 37.5 m a note 2 v ol - 0.3 0.4 v tx_disable v ih 2.0 vcct + 0.3 v note 3 v il -0.3 0.8 v notes: 1. supply current includes both vcct and vccr connections. 2. measured with a 4.7 k load to vcchost. 3. tx_disable has an internal 4.7 k to 10 k pull-up to vcct
11 table 7. two-wire interface electrical characteristics parameter symbol min. max. 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, v oh vcchtwi - 0.5 vcchtwi + 0.3 v measured at host side of connector scl and sda v il -0.3 vcct*0.3 v v ih vcct*0.7 vcct + 0.5 v input current on the i l -10 10 a scl and sda contacts capacitance on scl c i [2] 14 pf and sda contacts total bus capacitance c b [3] 100 pf at 400 khz, 3.0 k rp, max for scl and for sda 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. figure 5a. receiver electrical optical eye mask defnition figure 5b. transmitter optical eye mask defnition 150 0 -150 -425 0 0.35 1.0 0.65 absol ute amplitude - mv normalized time (unit interv al) 425 1.0 0.75 0.73 0.5 0.28 0.25 0 -0.40 0 0.25 0.40 0.45 1 0.55 0.60 0.75 normalized amplitude normalized time (unit interv al) 1.40
12 table 8. optical specifcations 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 minimum typical maximum units notes transmitter laser oma output power -4.3 dbm 1, 2, 3, table 9 laser mean output power -1.0 dbm 1, 2, 4 laser of power -30 dbm 1 extinction ratio 3.0 db 1, 2 transmitter and dispersion penalty (tdp) 3.9 db 1 center wavelength 840 860 nm 1,3, table 9 rms spectral width, standard deviation 1,3, table 9 rin12oma -128 db/hz 1 optical return loss tolerance 12 db 1 encircled flux 5 transmitter output eye mask 1, see figure 5b receiver stressed sensitivity (oma) C -7.5 dbm 1 receive sensitivity (oma) -11.1 dbm receive power (pave) overload -1.0 dbm 1 refectance -12 db 1 center wavelength 840 860 nm 1 rx_los (oma) of -12 dbm rx_los (oma) on -30 dbm rx_los (oma) hysteresis 0.5 db vertical eye closure penalty 3.5 db 7 stressed eye jitter 0.3 ui p-p 7 general specifcation considerations (notes): 1. ieee 802.3ae clause 52 compliant. 2. these parameters are interrelated: see ieee 802.3ae, clause 52. 3. see table 9. trade-ofs are available among spectral width, center wavelength, and minimum optical modulation amplitude. 4. the 10gbase-sr launch power shall be the lesser of the class 1 safety limit as defned in ieee 802.3ae 52.10.2 or the average receive power maximum defned by ieee 802.3ae -2002 table 52-9. 5. the transceivers launch condition meets the requirement of 10 gigabit ethernet multimode fber as detailed in tia 492aaac. 6. vertical eye closure penalty and stressed eye jitter are test conditions for stressed sensitivity (oma) measurements.
13 table 9. minimum optical modulation amplitude center rms spectral width (nm) wavelength up to 0.05 to 0.1 to 0.15 to 0.2 to 0.25 to 0.3 to 0.35 to 0.4 to (nm) 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 840 to 842 -4.2 -4.2 -4.1 -4.1 -3.9 -3.8 -3.5 -3.2 -2.8 842 to 844 -4.2 -4.2 -4.2 -4.1 -3.9 -3.8 -3.6 -3.3 -2.9 844 to 846 -4.2 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.3 -2.9 846 to 848 -4.3 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.3 -2.9 848 to 850 -4.3 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.3 -3.0 850 to 852 -4.3 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.4 -3.0 852 to 854 -4.3 -4.2 -4.2 -4.1 -4.0 -3.9 -3.7 -3.4 -3.1 854 to 856 -4.3 -4.3 -4.2 -4.1 -4.0 -3.9 -3.7 -3.4 -3.1 856 to 858 -4.3 -4.3 -4.2 -4.1 -4.0 -3.9 -3.7 -3.5 -3.1 858 to 860 -4.3 -4.3 -4.2 -4.2 -4.1 -3.9 -3.7 -3.5 -3.2
14 table 10. control functions: low speed signals timing characteristics the following characteristics are defned over the recommended operating conditions unless otherwise noted. parameter symbol minimum maximum unit notes tx_disable assert time t_of 10 s note 1 , fig. 6 tx_disable negate time t_on 2 ms note 2 , fig. 6 time to initialize, including reset of tx_fault t_init 300 ms note 3 , fig. 6 tx_fault assert time t_fault 100 s note 4 , fig. 6 tx_disable to reset t_reset 10 s note 5 , fig. 6 rx_los assert time t_los_on 100 s note 6 , fig. 6 rx_los deassert time t_los_of 100 s note 7 , fig. 6 notes: 1. time from rising edge of tx_disable to when the optical output falls below 10% of nominal. a 10 ms interval between assertions of tx_ disable is required. 2. time from falling edge of tx_disable to when the modulated optical output rises above 90% of nominal. 3. time from power on or falling edge of tx_disable to when the modulated optical output rises above 90% of nominal and the two-wire interface is available. 4. from power on or negation of tx_fault using tx_disable. 5. time tx_disable must be held high to reset the laser fault shutdown circuitry. 6. time from loss of optical signal to rx_los assertion. 7. time from valid optical signal to rx_los de-assertion. table 11. control functions: two-wire interface timing characteristics the following characteristics are defned over the recommended operating conditions unless otherwise noted. parameter symbol minimum maximum unit notes tx_disable assert time t_of_twi 100 ms note 1 tx_disable negate time t_on_twi 100 ms note 2 tx_fault assert time t_fault_twi 100 ms note 3 rx_los assert time t_loss_on_twi 100 ms note 4 rx_los deassert time t_loss_of_twi 100 ms note 5 analog parameter data ready t_data 1000 ms note 6 two-wire interface ready t_serial 300 ms note 7 write cycle time parameter t_write 80 ms note 8 two-wire interface clock rate f_serial_clock 400 khz time bus free before new transmission can start t_buf 20 m s note 9 notes: 1. time from two-wire interface assertion of tx_disable (a2h, byte 110, bit 6) to when the optical output falls below 10% of nominal. measured from falling clock edge after stop bit of write transaction. 2. time from two-wire interface de-assertion of tx_disable (a2h, byte 110, bit 6) to when the modulated optical output rises above 90% of nominal. 3. time from fault to two-wire interface tx_fault (a2h, byte 110, bit 2) asserted. 4. time for two-wire interface assertion of rx_los (a2h, byte 110, bit 1) from loss of optical signal. 5. time for two-wire interface de-assertion of rx_los (a2h, byte 110, bit 1) from presence of valid optical signal. 6. from power on to data ready bit asserted (a2h, byte 110, bit 0). data ready indicates analog monitoring circuitry is functional. 7. time from power on until module is ready for data transmission over the two-wire interface (reads or writes over a0h and a2h). 8. time from stop bit to completion of a 1-8 byte write command. measured from the stop bit, for a one t om four byte write the maximum cycle time is 40ms and for a fve to eight byte write the maximum cycle time is 80ms. 9. between stop and start. see sff 8431 section 4.3
15 table 12. transceiver digital diagnostic monitor (real time sense) 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 min. units notes transceiver internal temperature accuracy t int 3.0 c temperature is measured internal to the transceiver. valid from = -10c to 85c case temperature. transceiver internal supply voltage accuracy v int 0.1 v supply voltage is measured internal to the transceiver and can, with less accuracy, be correlated to voltage at the vcct contact. valid over 3.3 v 10%. transmitter laser dc bias current accuracy i int 10 % i int accuracy is better than 10% of the nominal value. transmitted average optical output power accuracy p t 3.0 db average power coupled into 50/125 m multi-mode fber. valid from100 w to 500 w. received average optical input power accuracy p r 3.0 db average power coupled from 50/125 m multi-mode fber. valid from 77 w to 500 w. figure 6. transceiver timing diagrams (module installed and power applied except where noted) tx_fault v cc t, v cc r > 2.97 v t_init tx_disable transmitted signal t_init tx_fault v cc t, v cc r > 2.97 v tx_disable transmitted signal t-init: tx disable negated t-init: tx disable asserted tx_fault v cc t, v cc r > 2.97 v t_init tx_disable transmitted signal t_off tx_fault tx_disable transmitted signal t-init: tx disable negated, module hot plugged t-off & t-on: tx disable asserted then negated insertion t_on tx_fault occurance of fault t_fault tx_disable transmitted signal tx_fault occurance of fault tx_disable transmitted signal t-fault: tx fault asserted, tx signal not recovered t-reset: tx disable asserted then negated, tx signal recovered t_reset t_init* * sfp shall clear tx_fault in < t_init if the failure is transient tx_fault occurance of fault t_fault tx_disable transmitted signal optical signal los t-fault: tx disable asserted then negated, tx signal not recovered t-los-on & t-los-off t_loss_on t_init* t_reset * sfp shall clear tx_fault in < t_init if the failure is transient t_loss_off occurance of loss
16 table 13. eeprom serial id memory contents C conventional sfp memory (address a0h) byte # decimal data hex notes byte # decimal data hex notes 0 03 sfp physical device 37 00 hex byte of vendor oui [1] 1 04 sfp function defned by serial id only 38 17 hex byte of vendor oui [1] 2 07 lc optical connector 39 6a hex byte of vendor oui [1] 3 10 10g base-sr 40 41 a - vendor part number ascii character 4 00 41 46 f - vendor part number ascii character 5 00 42 42 b - vendor part number ascii character 6 00 43 52 r - vendor part number ascii character 7 00 44 2d - - vendor part number ascii character 8 00 45 37 7 - vendor part number ascii character 9 00 46 30 0 - vendor part number ascii character 10 00 47 33 3 - vendor part number ascii character 11 06 64b/66b 48 53 s - vendor part number ascii character 12 67 10312.5 mbit/sec nominal bit rate (10.3125 gbit/s) 49 4e n - vendor part number ascii character 13 00 unspecifed 50 5a z - vendor part number ascii character 14 00 51 20 - vendor part number ascii character 15 00 52 20 - vendor part number ascii character 16 08 82 m of om2 50/125 m fber 53 20 - vendor part number ascii character 17 03 33 m of om1 62.5/125 m fber 54 20 - vendor part number ascii character 18 00 55 20 - vendor part number ascii character 19 1e 300 m of om3 50/125 m fber 56 20 - vendor revision number ascii character 20 41 a - vendor name ascii character 57 20 - vendor revision number ascii character 21 56 v - vendor name ascii character 58 20 - vendor revision number ascii character 22 41 a - vendor name ascii character 59 20 - vendor revision number ascii character 23 47 g - vendor name ascii character 60 03 hex byte of laser wavelength [2] 24 4f 0 - vendor name ascii character 61 52 hex byte of laser wavelength [2] 25 20 - vendor name ascii character 62 00 26 20 - vendor name ascii character 63 checksum for bytes 0-62 [3] 27 20 - vendor name ascii character 64 00 receiver limiting output. 1 watt power class. 28 20 - vendor name ascii character 65 1a hardware sfp tx_disable, tx_fault, & rx_los 29 20 - vendor name ascii character 66 00 30 20 - vendor name ascii character 67 00 31 20 - vendor name ascii character 68-83 vendor serial number ascii characters [4] 32 20 - vendor name ascii character 84-91 vendor date code ascii characters [5] 33 20 - vendor name ascii character 92 68 digital diagnostics, internal cal, rx pwr avg 34 20 - vendor name ascii character 93 f8 a/w, soft sfp tx_disable, tx_fault, & rx_los, rate_select 35 20 - vendor name ascii character 94 03 sff-8472 compliance to revision 10.0 36 00 95 checksum for bytes 64-94 [3] 96 - 255 00 notes: 1. the ieee organizationally unique identifer (oui) assigned to avago technologies is 00-17-6a (3 bytes of hex). 2. laser wavelength is represented in 16 unsigned bits. the hex representation of 850 (nm) is 0352. 3. addresses 63 and 95 are checksums calculated (per sff-8472) and stored prior to product shipment. 4. addresses 68-83 specify the AFBR-703SNZ ascii serial number and will vary on a per unit basis. 5. addresses 84-91 specify the AFBR-703SNZ ascii date code and will vary on a per date code basis.
17 table 14. eeprom serial id memory contents C enhanced feature set memory (address a2h) byte # byte # byte # decimal notes decimal notes decimal notes 0 temp h alarm msb [1] 26 tx pwr l alarm msb [4] 104 real time rx pwr msb [5] 1 temp h alarm lsb [1] 27 tx pwr l alarm lsb [4] 105 real time rx pwr lsb [5] 2 temp l alarm msb [1] 28 tx pwr h warning msb [4] 106 reserved 3 temp l alarm lsb [1] 29 tx pwr h warning lsb [4] 107 reserved 4 temp h warning msb [1] 30 tx pwr l warning msb [4] 108 reserved 5 temp h warning lsb [1] 31 tx pwr l warning lsb [4] 109 reserved 6 temp l warning msb [1] 32 rx pwr h alarm msb [5] 110 status/control - see table 15 7 temp l warning lsb [1] 33 rx pwr h alarm lsb [5] 111 reserved 8 vcc h alarm msb [2] 34 rx pwr l alarm msb [5] 112 flag bits - see table 16 9 vcc h alarm lsb [2] 35 rx pwr l alarm lsb [5] 113 flag bits - see table 16 10 vcc l alarm msb [2] 36 rx pwr h warning msb [5] 114 reserved 11 vcc l alarm lsb [2] 37 rx pwr h warning lsb [5] 115 reserved 12 vcc h warning msb [2] 38 rx pwr l warning msb [5] 116 flag bits - see table 16 13 vcc h warning lsb [2] 39 rx pwr l warning lsb [5] 117 flag bits - see table 16 14 vcc l warning msb [2] 40-55 reserved 118-127 reserved 15 vcc l warning lsb [2] 56-94 external calibration constants [6] 128-247 customer writeable 16 tx bias h alarm msb [3] 95 checksum for bytes 0-94 [7] 248-255 vendor specifc 17 tx bias h alarm lsb [3] 96 real time temperature msb [1] 18 tx bias l alarm msb [3] 97 real time temperature lsb [1] 19 tx bias l alarm lsb [3] 98 real time vcc msb [2] 20 tx bias h warning msb [3] 99 real time vcc ls [2] 21 tx bias h warning lsb [3] 100 real time tx bias msb [3] 22 tx bias l warning msb [3] 101 real time tx bias lsb [3] 23 tx bias l warning lsb [3] 102 real time tx power msb [4] 24 tx pwr h alarm msb [4] 103 real time tx power lsb [4] 25 tx pwr h alarm lsb [4] notes: 1. temperature (temp) is decoded as a 16 bit signed twos compliment integer in increments of 1/256c. 2. supply voltage (vcc) is decoded as a 16 bit unsigned integer in increments of 100 v. 3. laser bias current (tx bias) is decoded as a 16 bit unsigned integer in increments of 2 a. 4. transmitted average optical power (tx pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 w. 5. received average optical power (rx pwr) is decoded as a 16 bit unsigned integer in increments of 0.1 w. 6. bytes 56-94 are not intended for use with AFBR-703SNZ, but have been set to default values per sff-8472. 7. byte 95 is a checksum calculated (per sff-8472) and stored prior to product shipment.
18 table 15. eeprom serial id memory contents C soft commands (address a2h, byte 110) status/ bit # control name description notes 7 tx_ disable state digital state of sfp tx_ disable input (1 = tx_disable asserted) note 1 6 soft tx_ disable read/write bit for changing digital state of tx_disable function note 1, 2 5 reserved 4 reserved 3 reserved 2 tx_fault state digital state of the sfp tx_fault output (1 = tx_fault asserted) note 1 1 rx_los state digital state of the sfp rx_los output (1 = rx_los asserted) note 1 0 data ready (bar) indicates transceiver is powered and real time sense data is ready. (0 = ready) notes: 1. the response time for soft commands of the AFBR-703SNZ is 100 msec as specifed by sff-8472. 2. bit 6 is logic ord with the sfp tx_disable input on contact 3; either asserted will disable the sfp+ transmitter. table 16. eeprom serial id memory contents C alarms and warnings (address a2h, bytes 112, 113, 116, 117) byte bit flag bit name description 112 7 temp high alarm set when transceiver internal temperature exceeds high alarm threshold 6 temp low alarm set when transceiver internal temperature exceeds low alarm threshold 5 vcc high alarm set when transceiver internal supply voltage exceeds high alarm threshold 4 vcc low alarm set when transceiver internal supply voltage exceeds low alarm threshold 3 tx bias high alarm set when transceiver laser bias current exceeds high alarm threshold 2 tx bias low alarm set when transceiver laser bias current exceeds low alarm threshold 1 tx power high alarm set when transmitted average optical power exceeds high alarm threshold 0 tx power low alarm set when transmitted average optical power exceeds low alarm threshold 113 7 rx power high alarm set when received average optical power exceeds high alarm threshold 6 rx power low alarm set when received average optical power exceeds low alarm threshold 0-5 reserved 116 7 temp high warning set when transceiver internal temperature exceeds high warning threshold 6 temp low warning set when transceiver internal temperature exceeds low warning threshold 5 vcc high warning set when transceiver internal supply voltage exceeds high warning threshold 4 vcc low warning set when transceiver internal supply voltage exceeds low warning threshold 3 tx bias high warning set when transceiver laser bias current exceeds high warning threshold 2 tx bias low warning set when transceiver laser bias current exceeds low warning threshold 1 tx power high warning set when transmitted average optical power exceeds high warning threshold 0 tx power low warning set when transmitted average optical power exceeds low warning threshold 117 7 rx power high warning set when received average optical power exceeds high warning threshold 6 rx power low warning set when received average optical power exceeds low warning threshold 0-5 reserved
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 ? 2005-2013 avago technologies. all rights reserved. av02-2620en - january 28, 2013 figure 7. module drawing figure 8. module label 63.5 47.5 8.9 5.25 11.5 11.5 10.25 8.55 0.74 uncompressed

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