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? finisar corporation jun 25, 2009 rev.j page 1 product specification 4.25 gb/s rohs compliant sho rt-wavelength sfp transceiver FTLF8524P2XNY product features ? up to 4.25 gb/s bi-directional data links ? hot-pluggable sfp footprint ? built-in digital diagnostic functions ? 850nm oxide vcsel laser transmitter ? duplex lc connector ? rohs compliant and lead free ? up to 500m on 50/125 m mmf, 300m on 62.5/125 m mmf ? metal enclosure, for lower emi ? single 3.3v power supply ? extended operating temperature range: -20c to 85c applications ? tri-rate 1.063/2.125/4.25 gb/s fibre channel ? 1.25 gb/s 1000base-sx ethernet (rate selectable version) ? wireless ? obsai, cpri finisar?s FTLF8524P2XNY small form fact or pluggable (sfp) transceivers are compatible with the small form factor pluggable multi-sourcing agreement (msa) 1 . they are compatible with fibre channel fc-pi-2 rev. 7.0 2 . rate selectable versions are also compatible with gigabit ethernet as specified in ieee std 802.3 3 . they are rohs compliant and lead-fre e per directive 2002/95/ec 4 and finisar application note an- 2038. digital diagnostics functions are available via the 2-wire serial bus specified in the sfp msa. product selection FTLF8524P2XNY x w wide extraction bail b narrow extraction bail y l non rate selectable - 1x, 2x, 4x fibre channel v rate selectable - 1x, 2x, 4x fibr e channel and gigabit ethernet
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 2 i. pin descriptions pin symbol name/description ref. 1 v eet transmitter ground (comm on with receiver ground) 1 2 t fault transmitter fault. 3 t dis transmitter disable. laser output disabled on high or open. 2 4 mod_def(2) module definition 2. data line for serial id. 3 5 mod_def(1) module definition 1. clock line for serial id. 3 6 mod_def(0) module definition 0. grounded within the module. 3 7 rate select open or low = high = 1.063 gb/s or 2.125 gb/s fibre channel, 1.25 gb/s gigabit ethernet (low bandwidth) 2.125 or 4.25 gb/s fibre channel (high bandwidth) 4 8 los loss of signal indication. logic 0 indicates normal operation. 5 9 v eer receiver ground (common w ith transmitter ground) 1 10 v eer receiver ground (common w ith transmitter ground) 1 11 v eer receiver ground (common w ith transmitter ground) 1 12 rd- receiver inverted data out. ac coupled 13 rd+ receiver non-inverted data out. ac coupled 14 v eer receiver ground (common w ith transmitter ground) 1 15 v ccr receiver power supply 16 v cct transmitter power supply 17 v eet transmitter ground (comm on with receiver ground) 1 18 td+ transmitter non-inverted data in. ac coupled. 19 td- transmitter inverted data in. ac coupled. 20 v eet transmitter ground (comm on with receiver ground) 1 notes : 1. circuit ground is internally isolated from chassis ground. 2. laser output disabled on t dis >2.0v or open, enabled on t dis <0.8v. 3. should be pulled up with 4.7k ? 10kohms on host board to a voltage between 2.0v and 3.6v. mod_def(0) pulls line low to indicate module is plugged in. 4. for rate selectable version only: in accordance with sff comm ittee sff-8079 draft rev. 1.6, table 3. note that rate select can also be set through 2-wire bus in accordance with sff-8472 5 at bit 3, byte 110, address a2h (note: writing ?1? selects fu ll bandwidth operation). rate select is the logic or of the input state of rate select pin and 2-wire bus. non rate selectable version can operate at 1x, 2x, 4x fibre channel independent of rate select pin setting. 5. los is open collector output. should be pulled up with 4.7k ? 10kohms on host board to a voltage between 2.0v and 3.6v. logic 0 indicates normal operation; logic 1 indicates loss of signal. veet veet veer veer td- td+ rd+ rd- vcct vccr veet veer txfault mod-def(2) mod-def(1) mod-def(0) rate select los 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 towards asic towards bezel tx disable veer diagram of host board connect or block pin numbers and names
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 3 ii. absolute maximum ratings parameter symbol min typ max unit ref. maximum supply voltage vcc -0.5 4.0 v storage temperature t s -40 85 c case operating temperature t a -20 85 c relative humidity rh 0 85 % 1 iii. electrical characteristics (t a = -20 to 85 c, v cc = 3.0 to 3.6 volts) parameter symbol min typ max unit ref. supply voltage vcc 3.0 3.6 v supply current icc 180 240 ma transmitter input differential impedance r in 100 2 single ended data input swing vin,pp 150 1200 mv 3 transmit disable voltage v d 2 vcc v 4 transmit enable voltage v en vee vee+ 0.8 v receiver single ended data output swing vout,pp 300 350 550 mv 5 data output rise time t r 120 ps 6 data output fall time t f 120 ps 6 mask margin 40% los fault v los fault 2 vcc host v 7 los normal v los norm vee vee+0.8 v 7 power supply rejection psr 100 mvpp 8 deterministic jitter contribution @ 2.125 gb/s rx non condensing. 2. connected directly to tx data input pins. ac coupling from pins into laser driver ic. 3. we recommend <600mv for best emi performance. 4. or open circuit. 5. into 100 ohms differential termination. 6. unfiltered, 20 ? 80 % 7. los is an open collector output. should be pulled up with 4.7k ? 10kohms on the host board. normal operation is logic 0; loss of signal is logic 1. maximum pull-up voltage is 5.5v. 8. receiver sensitivity is compliant w ith power supply sinusoidal modulati on of 20 hz to 1.5 mhz up to specified value applied through the reco mmended power supply filtering network. 9. typical peak-to-peak jitter (=6*rms width of jitter). 10. measured with dj-free data input signal. in actual application, output dj will be the sum of input dj and dj. if measured with tj-free data input signal. in actual application, output tj will be given by: ()() 2 2 dj tj dj tj dj dj tj in in in out ? + ? + + =
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 4 iv. optical characteristics (t op = -20 to 85 c, v cc = 3. 00 to 3.60 volts) parameter symbol min typ max unit ref. transmitter output opt. pwr: 50 or 62.5 mmf p out -9 -2.5 dbm 1 optical wavelength 830 860 nm spectral width 0.85 nm optical modulation amplitude @ 4.25 gb/s oma 247 w 2 optical modulation amplitude @ 2.125 gb/s oma 196 w 2 optical modulation amplitude @ 1.0625 gb/s oma 156 w 2 optical rise/fall time t r / t f 90 ps 3 relative intensity noise rin -118 db/hz deterministic jitter contribution @ 2.125 gb/s tx receiver receiver sensitivity = 1.0625 gb/s rxsens -20 dbm 7 receiver sensitivity = 2.125 gb/s rxsens -18 dbm 7 receiver sensitivity = 4.25 gb/s rxsens -15 dbm 7 receiver sensitivity = 1.25 gb/s rxsens -20 dbm 8 stressed rx sens. =1.0625 gb/s 0.055 mw 9 stressed rx sens. =2.125 gb/s 0.096 mw 9 stressed rx sens. = 4.25 gb/s 0.138 mw 9 stressed rx sens. =1.25 gb/s -13.5 dbm 10 average receiver power rx max 0 dbm receiver elec. 3 db cutoff frequency 1500 mhz 11 receiver elec. 3 db cutoff frequency 2500 mhz 12 optical center wavelength c 770 860 nm optical return loss 12 db los de-assert los d -20 dbm los assert los a -30 dbm los hysteresis 0.5 db notes : 1. class 1 laser safety per fda/cdrh, and en (iec) 60825 laser safety standards. 2. equivalent extinction ratio specification for fibre channel. allows smaller er at higher average power. 3. unfiltered, 20-80%. complies with fc 1x and 2x eye mask when filtered. 4. measured with dj-free data input signal. in actual application, output dj will be the sum of input dj and dj. 5. if measured with tj-free data input signal. in actual application, output tj will be given by: ()() 2 2 dj tj dj tj dj dj tj in in in out ? + ? + + = 6. applicable for rate selectable version only in low bandwidth mode. 7. specifications are for 50 micro-me ter or 62.5 micro-meter fiber. 8. as measured with 9db extinction ratio. 9. measured with conformance signals defined in fc-pi-2 rev. 7.0 specifications.
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 5 10. measured with conformance signals defined in ieee 802.3 specifications. 11. rate selectable version in low bandwidth mode. 12. rate selectable version in high bandwidth mode. v. general specifications parameter symbol min typ max units ref. data rate br 1.062, 1.25, 2.125, 4.25 gb/sec 1 bit error rate ber 10 -12 5 fiber length on 50/125 m mmf l 550 300 150 m 2 3 4 fiber length on 62.5/125 m mmf l 300 150 70 m 2 3 4 notes : 1. 1x, 2x,4x fibre channel compatible, per fc-pi-2 rev. 7.0. rate selectable version is also gigabit ethernet compatible per ieee 802.3. 2. at 1.0625 gb/s fibre channel data rate and, for rate selectable version, at 1.25 gb/s gigabit ethernet data rate. 3. at 2.125 gb/s fibre channel data rate. 4. at 4.25 gb/s fibre channel data rate 5. 4.25gb/s with prbs 2 7 -1. vi. environmental specifications finisar 850nm sfp transceivers have an ex tended operating temperature range from ?20c to +85c case temperature. parameter symbol min typ max units ref. case operating temperature t op -20 85 c storage temperature t sto -40 85 c vii. regulatory compliance finisar transceivers are cla ss 1 laser products and comply with us fda regulations. these products are certified by tv and csa to meet the class 1 eye safety requirements of en (iec) 60825 and the electrical safety requirements of en (iec) 60950. copies of certificates are av ailable at finisar co rporation upon request.
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 6 viii. digital diagnostic functions finisar FTLF8524P2XNY sfp transceivers suppo rt the 2-wire serial communication protocol as defined in the sfp msa 1 . it is very closely related to the e 2 prom defined in the gbic standard, with the sa me electrical specifications. the standard sfp serial id pr ovides access to identification information that describes the transceiver?s capabilities, standard in terfaces, manufacturer, and other information. additionally, finisar sfp transceivers provide a enhanced digital diagnostic monitoring interface, which allows real -time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical pow er, received optical power and transceiver supply voltage. it also defines a sophisticated system of alarm and warning flags, which alerts end-users when pa rticular operating parameters are outside of a factory set normal range. the sfp msa defines a 256-byte memory map in e 2 prom that is accessible over a 2-wire serial interface at the 8 bit address 1010000x (a0h). the digital diagnostic monitoring interface makes use of the 8 b it address 1010001x (a2h), so the originally defined serial id memory map remains uncha nged. the interface is id entical to, and is thus fully backward compatible with both the gbic specification and the sfp multi source agreement. the complete interface is described in finisar application note an- 2030: ?digital diagnostics monitoring inte rface for sfp optical transceivers?. the operating and diagnostics informati on is monitored and reported by a digital diagnostics transceiver controller (ddtc) inside the transceiver, which is accessed through a 2-wire serial interface. when the seri al protocol is activated, the serial clock signal (scl, mod def 1) is generated by the host. the positive edge clocks data into the sfp transceiver into those segments of the e 2 prom that are not write-protected. the negative edge clocks data from the sfp transc eiver. the serial data signal (sda, mod def 2) is bi-directional for serial data tr ansfer. the host uses sda in conjunction with scl to mark the start and end of serial pr otocol activation. the memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. for more information, please see the sfp msa documentation 1,5 and finisar application note an-2030. please note that evaluation board fdb- 1018 is available with finisar moddemo software that allows simple to use comm unication over the 2-wire serial interface.
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 7 ix. digital diagnostic specifications FTLF8524P2XNY transceivers can be used in host systems that require either internally or externally calibrated digital diagnostics. parameter symbol min typ max units ref. accuracy internally measured transceiver temperature dd temperature 3 oc internally measured transceiver supply voltage dd voltage 100 mv measured tx bias current dd bias 10 % 1 measured tx output power dd tx-power 2 db measured rx received average optical power dd rx-power 2 db dynamic range for rated accuracy internally measured transceiver temperature dd temperature -20 85 oc internally measured transceiver supply voltage dd voltage 3.0 3.6 v measured tx bias current dd bias 0 20 ma measured tx output power dd tx-power -9 -2.5 dbm measured rx received average optical power dd rx-power -20 0 dbm max reporting range internally measured transceiver temperature dd temperature -40 125 oc internally measured transceiver supply voltage dd voltage 2.8 4.0 v measured tx bias current dd bias 0 20 ma measured tx output power dd tx-power -10 -3 dbm measured rx received average optical power dd rx-power -22 0 dbm notes : 1. accuracy of measured tx bias current is 10% of the actual bias current from the laser driver to the laser.
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 8 x. mechanical specifications finisar?s small form factor pluggable (sfp) transceivers are compatible with the dimensions defined by the sfp mult i-sourcing agreement (msa). ftlf8524p2bny
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 9 ftlf8524p2wny
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 10 xi. pcb layout and bezel recommendations
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 11
FTLF8524P2XNY pluggable sfp prod uct specification ? june 2009 ? finisar corporation jun 25, 2009 rev.j page 12 xii. references 1. small form-factor pluggable (sfp) tran sceiver multi-source agreement (msa), september 14, 2000. 2. ?fibre channel draft physical interface sp ecification (fc-pi-2 rev. 7.0)?. american national standard for information systems. 3. ieee std 802.3, 2002 edition, clause 38, pmd type 1000base-sx. ieee standards department, 2002. 4. directive 2002/95/ec of the european c ouncil parliament and of the council, ?on the restriction of the use of certain hazar dous substances in electrical and electronic equipment.? january 27, 2003. 5. ?digital diagnostics monitoring interface for optical transceivers?. sff document number sff-8472, revision 9.3. xiii. for more information finisar corporation 1308 moffett park drive sunnyvale, ca 94089-1133 tel. 1-408-548-1000 fax 1-408-541-6138 sales@finisar.com www.finisar.com

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