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features ? diagnostic features per sff-8472 diagnostic monitoring interface for optical transceivers ? compliant to restriction on hazardous substances (rohs) directive ? real time monitors of: C transmitted average optical power C received average optical power C laser bias current C temperature C supply voltage ? high performance 1310 nm dfb laser ? wide temperature and supply voltage operation (-40c to 85c) (3.3 v 10%) ? transceiver specifi cations per sfp (sff-8074i) multi- source agree ment and sff-8472 (revision 9.3) ? up to 20km with 9um fi ber for 3.072 gb/s ? up to 20km with 9um fi ber for 2.4576 gb/s ? lc duplex optical connector interface conforming to ansi tia/eia604-10 (focis 10) ? iec 60825-1 class 1/cdrh class 1 laser eye safe ? compatible with fibre channel and gigabit ethernet applications applications ? wireless and cellular base station system intercon- nect: - obsai rates 3.072 gb/s, 1.536 gb/s, 0.768 gb/s - cpri rates 3.072 gb/s, 2.4576 gb/s, 1.2288 gb/s, 0.6144 gb/s description the AFCT-57J5ATPZ optical transceiver supports high- speed serial links over singlemode optical fiber at signaling rates up to 3.072 gb/s. compliant with small form pluggable (sfp) multi source agreement (msa) me- chanical and electrical specifi cations, ansi fibre channel fc-pi-3 and compatible with ieee 802.3 for gigabit ap- plications. as an enhancement to the conventional sfp interface defi ned in sff-8074i, the AFCT-57J5ATPZ is compliant to sff-8472 (digital diagnostic interface for sfp). using the 2-wire serial interface defi ned in the sfp msa, the AFCT-57J5ATPZ provides real time temperature, supply voltage, laser bias current, laser average output power and received average input power. this information is in addition to the conventional sfp data. the digital diagnostic interface also adds the ability to disable the transmitter (tx_disable), monitor for transmitter faults (tx_fault), monitor for receiver loss of signal (rx_los). related products ? afbr-57j5apz: 850nm +3.3v lc sfp for 3.072/2.456 gbd cpri/obsai ? afct-57j5apz: 1310nm +3.3v lc sfp for 3.072/2.456 gbd cpri/obsai ? afbr-57j7apz: 1310nm +3.3v lc sfp for 7.373/6.144 gbd cpri.obsai ? afct-57j7atpz: 1310nm +3.3v lc sfp for 7.373/6.144 gbd cpri/obsai AFCT-57J5ATPZ 1310nm, 20km, 3.072/2.4576 gb/s, low voltage (3.3 v), sfp (small form pluggable), rohs obsai/cpri compatible, digital diagnostic optical transceiver data sheet AFCT-57J5ATPZ 850nm laser prod 21crf(j) class1 singapore 0446 sn: aj0446cd1c ppoc-4102-din2
2 installation the AFCT-57J5ATPZ can be installed in any sff-8074i compliant small form pluggable (sfp) port regardless of host equipment operating status. the AFCT-57J5ATPZ is hot-pluggable, allowing the module 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 identifi cation the 2-wire serial interface is based on atmel at24c01a series eeprom protocol and signaling detail. convention- al sfp eeprom memory, bytes 0-255 at memory address 0xa0, is organized in compliance with sff-8074i. new digital diagnostic information, bytes 0-255 at memory address 0xa2, is compliant to sff-8472. the new diag- nostic information provides the opportunity for predic- tive failure identifi cation, compliance prediction, fault isolation and component monitoring. the i2c accessible memory page address 0xb0 is used internally by sfp for the test and diagnostic purposes and it is reserved. predictive failure identifi cation the AFCT-57J5ATPZ predictive failure feature allows a host to identify potential link problems before system performance is impacted. prior identifi cation 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 applica- tions where ultra-high system uptime is required, a digital sfp provides a means to monitor two real-time laser metrics associated with observing laser degradation and predicting 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 opera ting within its operating and environmental requirements. AFCT-57J5ATPZ devices provide real-time access to transceiver internal supply voltage and temperature, allowing a host to identify potential component compliance issues. received optical power is also available to assess compliance of a cable plant and remote tr ansmitter. when operating out of requirements, the link cannot guarantee error free transmission. fault isolation the fault isolation feature allows a host to quickly pinpoint 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 speeding service of an installation. AFCT-57J5ATPZ 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 fl ags tx_disable 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 AFCT-57J5ATPZ 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 fi eld qualifi cation. for example, temperature per module can be observed in high density applications to facilitate thermal evaluation of blades, pci cards and systems.
3 figure 1. transceiver functional diagram. transmitter section the transmitter section includes a 1310-nm distributed feedback (dfb) laser and a transmitter driver circuit. the driver circuit maintains a constant average optical power output with fibre channel and ethernet 8b/10b coded data. optical connection to the transmitter is provided via an lc connector. the tosa is driven by a custom ic which uses the incoming diff erential 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 (8b/10b code, for example). transmit disable (tx_disable) the AFCT-57J5ATPZ accepts a ttl and cmos compat- ible transmit disable control signal input (pin 3) which shuts down the transmitter optical output. a high signal implements this function while a low signal allows normal transceiver operation. in the event of a fault (e.g. eye safety circuit activated), cycling this control signal resets the module as depicted in figure 4. an internal pull up resistor disables the transceiver transmitter until the host pulls the input low. host systems should allow a 10 ms interval between successive assertions of this control signal. tx_disable can also be asserted via the two-wire serial 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 (pin 3) to control transmitter operation 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). eye safety circuit the AFCT-57J5ATPZ 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 an unsafe condition beyond the scope of class 1 certifi ca- tion. such unsafe conditions can be due to inputs from the host board (vcc fl uctuation, unbalanced code) or a fault within the transceiver. light from fiber light to fiber photo-detector receiver amplification & quantization rd+ (receive data) rdC (receive data) rx loss of signal dfb laser transmitter laser driver & safety circuitry tx_disable td+ (transmit data) tdC (transmit data) tx_fault electrical interface mod-def2 (sda) mod-def1 (scl) mod-def0 controller & memory optical interface
4 caution there are no user serviceable parts nor maintenance require ments for the AFCT-57J5ATPZ. all mechanical adjustments are made at the factory prior to shipment. tampering with, modifying, misusing or improp- erly handling the AFCT-57J5ATPZ will void the product warranty. it may also result in improper operation and possibly overstress the laser source. performance deg- radation or device failure may result. connection of the AFCT-57J5ATPZ to a light source not compliant with ansi fc-pi or ieee 802.3 specifi cations, 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 manufactur ing a laser product. persons performing such an act are required by law to re-certify and re-identify the laser product under the provisions of u.s. 21 cfr (subchapter j) and tuv. ordering information please contact your local fi eld sales engineer or one of avago technologies franchised distributors for ordering information. for technical information, please visit avago technologies web page at www.avagotech.com or contact avago technologies semiconductor products customer response center at 1-800-235-0312. for information related to sff committee documentation visit www. sff committee.org . regulatory compliance the AFCT-57J5ATPZ complies with all applicable laws and regulations as detailed in table 1. certifi cation level is dependent on the overall confi guration of the host equipment. the transceiver performance is off ered as a fi gure of merit to assist the designer. electrostatic discharge (esd) the AFCT-57J5ATPZ is compatible with esd levels found in typical manufacturing and operating environments as described in table 1. in the normal handling and oper- ation of optical transceivers, esd is of concern in two circumstances. the fi rst 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 precau- tions. these include using of grounded wrist straps, work- benches and fl oor wherever a transceiver 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 transceiver may be subject to system level esd requirements. receiver section the receiver section includes the receiver optical sub- assembly (rosa) and the amplifi cation/quantization circuitry. the rosa, containing a pin photo diode and custom transimped ance amplifi er, 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- amplifi cation and quantization. receiver loss of signal (rx_los) the post-amplification ic also includes transition detection circuitry which monitors the ac level of incoming optical signals and provides a ttl/cmos compatible status signal to the host (pin 8). an adequate optical input results in a low rx_los output while a high rx_los output indicates an unusable optical input. the rx_los thresholds are factory set so that a high output indicates a defi nite optical fault has occurred. rx_los can also be monitored via the two-wire serial interface (address a2h, byte 110, bit 1). functional data i/o the AFCT-57J5ATPZ interfaces with the host circuit board through twenty i/o pins (sfp electrical connector) iden- tifi ed by function in table 2. the board layout for this interface is depicted in figure 6. the AFCT-57J5ATPZ high speed transmit and receive interfaces require sfp msa compliant signal lines on the host board. to simplify board requirements, biasing resistors and ac coupling capacitors are incorporated into the sfp transceiver module (per sff-8074i) and hence are not required on the host board. the tx_disable, tx_fault, rx_los require ttl lines on the host board (per sff-8074i) if used. if an application chooses not to take advantage of the functionality of these pins, care must be taken to ground tx_disable (for normal operation). figure 2 depicts the recommended interface circuit to link the AFCT-57J5ATPZ to supporting physical layer ics. timing for msa compliant control signals implemented in the transceiver are listed in figure 4. application support an evaluation kit and reference designs are available to assist in evaluation of the AFCT-57J5ATPZ. please contact your local field sales representative for availability and ordering details.
5 table 1. regulatory compliance feature test method performance electrostatic discharge (esd) mil-std-883c class 2 (> 2000 volts) to the electrical pins method 3015.4 electrostatic discharge (esd) variation of 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. gr1089 10 contacts of 8 kv on the electrical faceplate with device inserted into a panel. electrostatic discharge (esd) variation of iec 801-2 air discharge of 15 kv (min.) contact to to the optical connector connector without damage. electromagnetic interference fcc class b system margins are dependent on customer (emi) cenelec en55022 class b board and chassis design. (cispr 22a) vcci class 1 immunity variation of iec 61000-4-3 typically shows no measurable eff ect from a 10 v/m swept from 10 mhz to 1 ghz. laser eye safety and us fda cdrh ael class 1 cdrh #9521220-141 equipment type testing us21 cfr, subchapter j per tuv #933/21205741/010 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 ul #e173874 canadian standards association joint component recognition for information technology equipment including electrical business equipment restriction on hazardous less than 1000 ppm of cadmium, lead, mercury, substances (rohs) compliance hexavalent chromium, polybrominated biphe nyls, and polybrominated biphenyl ethers. bauart gepruft type approved tuv rheinland product safety electromagnetic interference (emi) equipment incorporating g igabit transceivers is typically subject to regulation by the fcc in the united states, cenelec en55022 (cispr 22) in europe and vcci in japan. the AFCT-57J5ATPZs compliance to these standards is detailed in table 1. the metal housing and shielded design of the AFCT-57J5ATPZ minimizes the emi challenge facing the equipment designer. emi immunity (susceptibility) due to its shielded design, the emi immunity of the afct- 57j5atpz exceeds typical industry standards. flammability the AFCT-57J5ATPZ optical transceiver is made of metal and high strength, heat resistant, chemical resistant and ul 94v-0 fl ame retardant plastic.
6 figure 2. typical application confi guration. figure 3. recommended power supply fi lter. laser driver module detect loss of signal scl sda tx_fault tx_disable td+ tx fault tx dis tdC rd+ rdC 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 1 h 1 h 10 f 0.1 f 0.1 f 10 f 0.1 f 3.3 v 3.3 v serdes ic rx los gnd,t post amplifier 100 : 4.7 k to 10 k : 100 : 6.8 k : v cc ,r 4.7 k to 10 k : v cc ,r 1 h 1 h 0.1 f v cc r sfp module 10 f v cc t 0.1 f 10 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.
7 notes: 1. tx_fault is an open collector/drain output, which must be pulled up with a 4.7 k C 10 k resistor on the host board. when high, this output indicates a laser fault of some kind. low indicates normal operation. in the low state, the output will be pulled to < 0.8 v. 2. tx_disable is an input that is used to shut down the transmitt er optical output. it is internally pulled up (within the tran sceiver) with a 6.8 k resistor. low (0 C 0.8 v): transmitter on between (0.8 v and 2.0 v): undefi ned high (2.0 C vcc max) or open: transmitter disabled 3. the signals mod-def 0, 1, 2 designate the two wire serial interface pins. they must be pulled up with a 4.7 k C 10 k resistor on the host board. mod-def 0 is grounded by the module to indicate the module is present mod-def 1 is serial clock line (scl) of two wire serial interface mod-def 2 is serial data line (sda) of two wire serial interface 4. rx_los (rx loss of signal) is an open collector/drain output that must be pulled up with a 4.7 k C 10 k resistor on the host board. when high, this output indicates the received optical power is below the worst case receiver sensitivity (as defi ned by the standard in use). low indicates normal operation. in the low state, the output will be pulled to < 0.8 v. 5. rd-/+ designate the diff erential receiver outputs. they are ac coupled 100 diff erential lines which should be terminated with 100 diff er- ential at the host serdes input. ac coupling is done inside the transceiver and is not required on the host board. the voltage swing on these lines will be between 600 and 1600 mv diff erential (300 C 800 mv single ended) when properly terminated. 6. vccr and vcct are the receiver and transmitter power supplies. they are defi ned at the sfp connector pin. the maximum supply current is 300 ma and the associated in-rush current will typically be no more than 30 ma above steady state after 2 microseconds. 7. td-/+ designate the diff erential transmitter inputs. they are ac coupled diff erential lines with 100 diff erential termination inside the module. the ac coupling is done inside the module and is not required on the host board. the inputs will accept diff erential swings of 400 C 2400 mv (200 C 1200 mv single ended), although it is recommended that values between 500 mv and 1200 mv diff erential (250-600 mv single ended) be used for best emi. table 2. pin description pin name function/description notes 1 veet transmitter ground 2 tx_fault transmitter fault indication C high indicates a fault condition note 1 3 tx_disable transmitter disable C module optical output disables on high or open note 2 4 mod-def2 module defi nition 2 C two wire serial id interface data line (sda) note 3 5 mod-def1 module defi nition 1 C two wire serial id interface clock line (scl) note 3 6 mod-def0 module defi nition 0 C grounded in module (module present indicator) note 3 7 n.c. 8 rx_los loss of signal C high indicates loss of received optical signal note 4 9 veer receiver ground 10 veer receiver ground 11 veer receiver ground 12 rd- inverse received data out note 5 13 rd+ received data out note 5 14 veer receiver ground 15 vccr receiver power + 3.3 v note 6 16 vcct transmitter power + 3.3 v note 6 17 veet transmitter ground 18 td+ transmitter data in note 7 19 td- inverse transmitter data in note 7 20 veet transmitter ground
8 table 3. absolute maximum ratings parameter symbol minimum maximum unit notes storage temperature t s -40 100 c note 1, 2 case operating temperature t c -40 85 c note 1, 2 relative humidity rh 5 85 % note 1 supply voltage vcc t, r -0.5 3.8 v note 1, 2, 3 low speed input voltage v in -0.5 vcc + 0.5 v note 1 notes: 1. absolute maximum ratings are those values beyond which damage to the device may occur if these limits are exceeded for other than a short period of time. see reliability data sheet for specifi c reliability performance. 2. between absolute maximum ratings and the recommended operating conditions functional performance is not intended, device rel iability is not implied, and damage to the device may occur over an extended period of time. 3. the module supply voltages, v cc t and v cc r must not diff er by more than 0.5 v or damage to the device may occur. table 4. recommended operating conditions parameter symbol minimum maximum unit notes supply voltage vcc t, r 2.97 3.63 v note 2 data rate 0.614 3.072 gb/s note 2 tcase -40 85 c note 1, 2 notes: 1. the ambient operating temper ature limitations are based on the case operating temperature limitations and are subject to the host system thermal design. 2. recommended operating conditions are those values for which functional performance and device reliability is implied. table 5. transceiver electrical characteristics (t c = -40c to 85c, vcct, vccr = 3.3 v 10%) parameter symbol minimum typical maximum unit notes ac electrical characteristics power supply noise rejection (peak-peak) psnr 100 mv note 1 dc electrical characteristics module supply current i cc 215 300 ma @ 70c 350 ma @ 85c power dissipation p diss 1000 mw low speed outputs: v oh 2.0 vcct,r+0.3 v note 2 transmit fault (tx_fault), loss of signal v ol 0.6 v (rx_los), mod-def 2 low speed inputs: v ih 2.0 vcc v note 3 transmit disable (tx_dis), v il 0 0.8 v mod-def 1, mod-def 2 notes: 1. filter per sfp specifi cation is required on host board to remove 10 hz to 2 mhz content. 2. pulled up externally with a 4.7 k C 10 k resistor on the host board to 3.3 v. 3. pulled up externally with a 4.7 k C 10 k resistor on the host board to 3.3 v.
9 table 6. transmitter and receiver electrical characteristics (t c = -40c to 85c, vcct, vccr = 3.3 v 10%) parameter symbol minimum typical maximum unit notes high speed data input: v i 400 2400 mv note 1 transmitter diff erential input voltage (td +/-) high speed data output: vo 600 1600 mv note 2 receiver diff erential output voltage (rd +/-) receiver contributed deterministic jitter dj 25 ps (0.614 to 3.072gb/s) receiver contributed total jitter tj 65 ps (0.614 to 3.072gb/s receiver electrical output rise & fall times tr, tf 30 200 ps note 4 (20-80%) notes: 1. internally ac coupled and terminated (100 ohm diff erential). 2. internally ac coupled but requires an external load termination (100 ohm diff erential). 3. contributed dj is measured on an oscilloscope in average mode with 50% threshold and k28.5 pattern. 4. 20%-80% electrical rise & fall times measured with a 500 mhz signal utilizing a 1010 data pattern. table 7. transmitter optical characteristics (t c = -40c to 85c, vcct, vccr = 3.3 v 10%) parameter symbol minimum typical maximum unit notes modulated optical output power (oma) tx,oma 290 350 w note 2 (peak-to-peak) (0.614 to 3.072 gb/s) average optical output power pout -8.4 -3.0 dbm note 1, 2 center wavelength ? c 1290 1340 nm spectral width C rms ? ,rms nm optical rise/fall time (4.25 gb/s) tr, tf 100 ps 20% - 80% rin 12 (oma) rin -118 db/hz transmitter contributed total jitter dj 50 ps (0.614 to 3.072gb/s) transmitter contributed total jitter tj 80 ps (0.614 to 3.072gb/s) pout tx_disable asserted p off -35 dbm notes: 1. max pout is the lesser of class 1 safety limits (cdrh and en 60825) or receiver power, max. 2. into 9/125 m single-mode optical fi ber. 3. contributed dj is measured on an oscilloscope in average mode with 50% threshold and k28.5 pattern. contributed tj is the s um of contrib- uted rj and contributed dj. contributed rj is calculated for 1x10 -12 ber by multiplying the rms jitter (measured on a single rise or fall edge) from the oscilloscope by 14. per fc-pi (table 9 - sm jitter output, note 1), the actual contributed rj is allowed to increase above its limit if the actual contributed dj decreases below its limits, as long as the component output dj and tj remain within their specifi ed fc-pi maximum lim- its with the worst case specifi ed component jitter input.
10 table 8. receiver optical characteristics (t c = -40c to 85c, vcct, vccr = 3.3 v 10%) parameter symbol min. typ. max. unit notes input optical power [overdrive] p in -3 dbm, avg input optical modulation amplitude (peak-to-peak) oma 20 w, oma note 1 (0.614 to 3.072 gb/s) [sensitivity] return loss 12 db loss of signal C assert p a 13.8 w, oma -30 -20.5 dbm, avg note 2 loss of signal C de-assert p d 15 w, oma -20.0 dbm, avg note 2 loss of signal hysteresis p d - p a 0.5 db notes: 1. input optical modulation amplitude (commonly known as sensitivity) requires a valid 8b/10b encoded input. 2. these average power values are specifi ed with an extinction ratio of 9 db. the loss of signal circuitry responds to valid 8b/10b encoded peak to peak input optical power, not average power.
11 table 9. transceiver timing characteristics (t c = -40c to 85c, vcct, vccr = 3.3 v 10%) parameter symbol minimum maximum unit notes hardware tx_disable assert time t_off 10 s note 1 hardware tx_disable negate time t_on 1 ms note 2 time to initialize, including reset of tx_fault t_init 300 ms note 3 hardware tx_fault assert time t_fault 100 s note 4 hardware tx_disable to reset t_reset 10 s note 5 hardware rx_los deassert time t_loss_on 100 s note 6 hardware rx_los assert time t_loss_off 100 s note 7 software tx_disable assert time t_off _soft 100 ms note 8 software tx_disable negate time t_on_soft 100 ms note 9 software tx_fault assert time t_fault_soft 100 ms note 10 software rx_los assert time t_loss_on_soft 100 ms note 11 software rx_los de-assert time t_loss_off _soft 100 ms note 12 analog parameter data ready t_data 1000 ms note 13 serial bus hardware ready t_serial 300 ms note 14 write cycle time t_write 10 ms note 15 serial id clock rate f_serial_clock 400 khz notes: 1. time from rising edge of tx_disable to when the optical output falls below 10% of nominal. 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. 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. 8. time from two-wire interface assertion of tx_disable (a2h, byte 110, bit 6) to when the optical output falls below 10% of n ominal. measured from falling clock edge after stop bit of write transaction. 9. time from two-wire interface de-assertion of tx_disable (a2h, byte 110, bit 6) to when the modulated optical output rises a bove 90% of nominal. 10. time from fault to two-wire interface tx_fault (a2h, byte 110, bit 2) asserted. 11. time for two-wire interface assertion of rx_los (a2h, byte 110, bit 1) from loss of optical signal. 12. time for two-wire interface de-assertion of rx_los (a2h, byte 110, bit 1) from presence of valid optical signal. 13. from power on to data ready bit asserted (a2h, byte 110, bit 0). data ready indicates analog monitoring circuitry is functi onal. 14. time from power on until module is ready for data transmission over the serial bus (reads or writes over a0h and a2h). 15. time from stop bit to completion of a 1-8 byte write command.
12 table 10. transceiver digital diagnostic monitor (real time sense) characteristics (t c = -40c to 85c, vcct, vccr = 3.3 v 10%) parameter symbol min. units notes transceiver internal temperature t int 3.0 c temperature is measured internal to the transceiver. accuracy valid from = -10c to 85c case temperature. transceiver internal supply v int 0.1 v supply voltage is measured internal to the transceiver voltage accuracy and can, with less accuracy, be correlated to voltage at the sfp vcc pin. valid over 3.3 v 10%. transmitter laser dc bias current i int 10 % i int is better than 10% of the nominal value. accuracy transmitted average optical p t 3.0 db coupled into 9/125 m single-mode fi ber. valid from output power accuracy 100 w to 500 w, average. received optical input power p r 3.0 db coupled from 9/125 m single-mode fi ber. valid from accuracy 15 w to 500 w, average. figure 4. transceiver timing diagrams (module installed except where noted). tx_fault v cc t,r > 2.97 v t_init tx_disable transmitted signal t_init tx_fault v cc t,r > 2.97 v tx_disable transmitted signal t-init: tx disable negated t-init: tx disable asserted tx_fault v cc t,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-loss-on & t-loss-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
13 byte # data byte # data decimal hex notes decimal hex notes 0 03 sfp physical device 37 00 hex byte of vendor oui [1] 1 04 sfp function defi ned 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 00 40 41 a - vendor part number ascii character 4 00 41 46 f - vendor part number ascii character 5 00 42 43 c - vendor part number ascii character 6 00 43 54 t - vendor part number ascii character 7 12 long distance 44 2d - - vendor part number ascii character 8 00 45 35 5 - vendor part number ascii character 9 01 single mode (sm) 46 37 7 - vendor part number ascii character 10 00 47 4a j - vendor part number ascii character 11 01 compatible with 8b/10b encoded data 48 35 5 - vendor part number ascii character 12 1f 3100 mbit/sec nominal bit rate (3.072 gbit/s) 41 41 a - vendor part number ascii character 13 00 54 54 t - vendor part number ascii character 14 14 20 km of single mode fi ber @ 3.1gbit/sec 50 50 p - vendor part number ascii character 15 c8 20km of single mode fi ber @ 3.1gbit/sec 5a 5a z - vendor part number ascii character 16 00 53 20 - vendor part number ascii character 17 00 54 20 - vendor part number ascii character 18 00 55 20 - vendor part number ascii character 19 00 56 20 - vendor part number ascii character 20 41 a - vendor name ascii character 57 20 - vendor part number ascii character 21 56 v - vendor name ascii character 58 20 - vendor part number ascii character 22 41 a - vendor name ascii character 59 20 - vendor part number ascii character 23 47 g - vendor name ascii character 60 05 hex byte of laser wavelength [2] 24 4f o - vendor name ascii character 61 1e 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 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 f0 a/w, soft sfp tx_disable, tx_fault, & rx_los 35 20 - vendor name ascii character 94 01 sff-8472 compliance to revision 9.3 36 00 95 checksum for bytes 64-94 [4] 96 - 255 00 notes: 1. the ieee organizationally unique identifi er (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 1310 (nm) is 051e. 3. addresses 63 and 95 are checksums calculated (per sff-8472 and sff-8074) and stored prior to product shipment. 4. addresses 68-83 specify the AFCT-57J5ATPZ ascii serial number and will vary on a per unit basis. 5. addresses 84-91 specify the AFCT-57J5ATPZ ascii date code and will vary on a per date code basis. table 12. eeprom serial id memory contents C conventional sfp memory (address a0h)
14 table 13: 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 average msb [5] 1 temp h alarm lsb [1] 27 tx pwr l alarm lsb [4] 105 real time rx average 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 14 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 15 9 vcc h alarm lsb [2] 35 rx pwr l alarm lsb [5] 113 flag bits - see table 15 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 15 13 vcc h warning lsb [2] 39 rx pwr l warning lsb [5] 117 flag bits - see table 15 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 specifi c 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 lsb [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 55-94 are not intended for use with AFCT-57J5ATPZ, 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.
15 table 14. 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 pin (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 pin (1 = tx_fault asserted) note 1 1 rx_los state digital state of the sfp rx_los output pin (1 = rx_los asserted) note 1 0 data ready (bar) indicates transceiver is powered and real time sense data is ready. (0 = ready) note 1 notes: 1. the response time for soft commands of the AFCT-57J5ATPZ is 100 msec as specifi ed by the msa sff-8472. 2. bit 6 is logic ord with the sfp tx_disable input pin 3 ... either asserted will disable the sfp transmitter. table 15. 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 optical power exceeds high alarm threshold 6 rx power low alarm set when received 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 optical power exceeds high warning threshold 6 rx power low warning set when received optical power exceeds low warning threshold 0-5 reserved
16 figure 5. module drawing. device shown with dust cap and bail delatch afct-57r5apz 850nm laser prod 21crf(j) class1 china 0445 sn: a30445cd1c ppog-4402-din2 afct-57r5apz 850nm laser prod 21crf(j) class1 china 0445 sn: a30445cd1c ppog-4402-din2 55.3 r 0.2 8.5 r 0.1 13.4 r 0.1 6.25 r 0.05 tx rx 1.91 13.6 12.4 r 0.2 13.6 14.9 uncompressed 0.55 uncompressed 1.39 uncompressed
17 figure 6. sfp host board mechanical layout. 2 x 1.7 20 x 0.5 0.03 0.9 2 0.005 typ. 0.06 l a s b s 10.53 11.93 20 10 11 pin 1 20 10 11 pin 1 0.8 typ. 10.93 9.6 2 x 1.55 0.05 3.2 5 legend 1. pads and vias are chassis ground 2. through holes, plating optional 3. hatched area denotes component and trace keepout (except chassis ground) 4. area denotes component keepout (traces allowed) dimensions are in millimeters 4 3 2 1 1 26.8 5 11 x 2.0 10 3 x 41.3 42.3 b 10 x 1.05 0.01 16.25 ref. 14.25 11.08 8.58 5.68 2.0 11 x 11.93 9.6 4.8 8.48 a 3.68 see detail 1 9 x 0.95 0.05 2.5 7.1 7.2 2.5 10 3 x 34.5 16.25 min. pitch y x detail 1 0.85 0.05 pcb edge 0.06 l a s b s 0.1 l a s b s 0.1 l x a s 0.1 l x a s 0.1 s x y
figure 7. sfp assembly drawing. customer manufacturing processes this module is pluggable and is not designed for aqueous wash, ir refl ow, or wave soldering processes. 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 ? 2005-2012 avago technologies. all rights reserved. av02-0474en - september 12, 2012 41.78 0.5 3.5 0.3 1.7 0.9 tcase reference point pcb 10 ref (to pcb) 0.4 0.1 (below pcb) 10.4 0.1 15.25 0.1 16.25 0.1 min. pitch dimensions are in millimeters 11.73 ref cage assembly 9.8 max. 15 max.

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