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? finisar corporation mov 15, 2011 rev. b page 1 product specification 3.7 gb/s rohs compliant sh ort-wavelength sfp transceiver FTLF8524P3BNL product features ? up to 3.7 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 300m on 62.5/125 m mmf ? metal enclosure, for lower emi ? single 3.3v power supply ? <0.5w ? extended operating temperature range: -40c to 85c applications ? wireless: obsai,cpri, lte finisar?s ftlf8524p3xny small form fact or pluggable (sfp) transceivers are compatible with the small form factor pluggable multi-sourcing agreement (msa) 1 . they are rohs compliant and le ad-free per dire ctive 2002/95/ec 2 and finisar application note an-2038. digital diagnostics functions are availa ble via the 2-wire serial bus specified in the sfp msa. product selection FTLF8524P3BNL
FTLF8524P3BNL pluggable sfp produc t specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b 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 na 8 los loss of signal indication. logic 0 indicates normal operation. 4 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. 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
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b 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 -40 85 c relative humidity rh 0 85 % 1 iii. electrical characteristics (t a , v cc = 3.1 to 3.46 volts) parameter symbol min typ max unit ref. supply voltage vcc 3.1 3.46 v supply current icc 130 144 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 300 800 mv 5 data output rise time t r 140 ps 6 data output fall time t f 140 ps 6 los fault v los faul t 2 vcc host v 7 los normal v los norm vee vee+0.8 v 7 power supply rejection psr 100 mvpp 8 determinstic jitter contribution @ 3.7 gb/s 28 ps 9 total jitter contribution @ 3.7 gb/s 77 ps 10 notes : 1. 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 recommended 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 ? + ? + + =
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 4 iv. optical characteristics (t a , v cc = 3. 10 to 3.46 volts) parameter symbol min typ max unit ref. transmitter output opt. pwr: 50 or 62.5 mmf p out -9 dbm 1 optical wavelength 830 860 nm spectral width 0.85 nm optical modulation amplitude oma 247 receiver receiver sensitivity @3.7gb/s (oma) rxsens -13 dbm 5 average receiver power rx max 0 dbm optical center wavelength class 1 laser safety per fda/cdrh, and en (iec) 60825 laser safety standards. 2. unfiltered, 20-80%. 3. measured with dj-free data input signal. in actual application, output dj will be the sum of input dj and dj. 4. 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 ? + ? + + = 5. specifications are for 50 micro-me ter or 62.5 micro-meter fiber.
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 5 v. general specifications parameter symbol min typ max units ref. data rate br 3.7 gb/sec bit error rate ber 10 -12 1 fiber length over om3 l 300 m notes : 1. 3.7gb/s with prbs 2 7 -1 vi. environmental specifications parameter symbol mi n typ max units ref. case operating temperature t op -40 85 c storage temperature t sto -40 85 c vii. regulatory compliance finisar transceivers are cla ss finisar laser transceiver co mplies with laser class 1 per latest edition of en60825-1 and iec 60825-1 for fiber optic systems.
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 6 viii. digital diagnostic functions finisar FTLF8524P3BNL sfp transceivers s upport 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.
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 7 ix. digital diagnostic specifications FTLF8524P3BNL transceivers can be used in ho st systems that requir e either internally or externally calibrate d 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.
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b 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). FTLF8524P3BNL
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 9 xi. pcb layout and bezel recommendations
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 10
ftlf8524p3nl pluggable sfp product specification ? november 2011 ? finisar corporation nov 15, 2011 rev.b page 11 xii. references 1. small form-factor pluggable (sfp) tran sceiver multi-source agreement (msa), september 14, 2000. 2. directive 2002/95/ec of the european c ouncil parliament and of the council, ?on the restriction of the use of certain hazardous substances in electrical and electronic equipment.? january 27, 2003. 3. ?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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