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? finisar corporation january 20, 2006 rev.a page 1 preliminary product specification oc-48 lr-2/stm l-16.2 rohs compliant pluggable sfp transceiver ftlf1621p2xtl product features ? up to 2.67gb/s bi-directional data links ? hot-pluggable sfp footprint ? built-in digital diagnostic functions ? uncooled 1550nm dfb laser transmitter ? apd receiver ? duplex lc connector ? rohs compliant ? metal enclosure, for lower emi ? single 3.3v power supply ? low power dissipation typically <700mw ? industrial operating temperature range: -40c to 85c applications ? sonet oc-48 lr-2 / sdh stm l-16.2 ? sonet oc-12 / sdh stm 4 ? sonet oc-3 / sdh stm-1 ? gigabit ethernet / 1x/2x fibre channel finisar?s ftlf1621p2xtl small form factor pluggable (sfp) transceivers are compatible with the small form factor pluggable multi-sourcing agreement (msa) 1 . they comply with sonet oc-48 lr-2 (sdh stm l-16.2) standards 2 , gigabit ethernet as specified in ieee std 802.3 3(*) and fibre channel fc-pi-2 rev 7.0 4(*) . they are compatible with sonet oc-12 sr and sonet oc-3 standards 2 and are rohs compliant per directive 2002/95/ec 5 and finisar application note an-2038. digital diagnostics functions are available via the 2-wire serial bus specified in the sfp msa. product selection ftlf1621p2xtl x w wide extraction bail b narrow extraction bail
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 2 i. pin descriptions pin symbol name/description ref. 1 v eet transmitter ground (common with receiver ground) 1 2 t fault transmitter fault. not supported. 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 no connection required 4 8 los loss of signal indication. logic 0 indicates normal operation. 5 9 v eer receiver ground (common with transmitter ground) 1 10 v eer receiver ground (common with transmitter ground) 1 11 v eer receiver ground (common with 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 with transmitter ground) 1 15 v ccr receiver power supply 16 v cct transmitter power supply 17 v eet transmitter ground (common 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 (common 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. finisar ftlfxx21xxxxx transceivers operate between oc-3 and oc-48, 1x and 2x fibre channel, and gigabit ethernet data rates and respective protocols without active control. finisar ftlfxx19xxxxx transceivers operate at 1x and 2x fibre channel, and gigabit ethernet data rates and respective protocols without active control. 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 connector block pinout on the host board
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 3 ii. absolute maximum ratings parameter symbol min typ max unit ref. maximum supply voltage vcc -0.5 4.5 v storage temperature t s -40 85 c case operating temperature t op -40 85 c relative humidity rh 0 85 % 1 iii. electrical characteristics (t op = -40 to 85 c, v cc = 3.10 to 3.50 volts) parameter symbol min typ max unit ref. supply voltage vcc 3.10 3.50 v supply current icc 230 300 ma transmitter input differential impedance r in 100 ? 2 single ended data input swing vin,pp 250 1200 mv transmit disable voltage v d vcc ? 1.3 vcc v transmit enable voltage v en vee vee+ 0.8 v 3 transmit disable assert time 10 us receiver single ended data output swing vout,pp 300 400 800 mv 4 data output rise time t r 100 175 ps 5 data output fall time t f 100 175 ps 5 los fault v los fault vcc ? 0.5 vcc host v 6 los normal v los norm vee vee+0.5 v 6 power supply rejection psr 100 mvpp 7 total generated reciever jitter (peak to peak) j rx p-p 0.07 ui total generated reciever jitter (rms) j rx rms 0.007 ui notes : 1. non condensing. 2. ac coupled. 3. or open circuit. 4. into 100 ohms differential termination. 5. 10 ? 90 % 6. loss of signal is lvttl. logic 0 indicates normal operation; logic 1 indicates no signal detected. 7. all transceiver specifications are compliant with a power supply sinusoidal modulation of 20 hz to 1.5 mhz up to specified value applied through the power supply filtering network shown on page 23 of the small form-factor pluggable (sfp) transceiver multisource agreement (msa), september 14, 2000.
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 4 iv. optical characteristics (t op = -40 to 85 c, v cc = 3.10 to 3.50 volts) parameter symbol min typ max unit ref. transmitter output opt. pwr: 9/125 smf p out -2 +3 dbm 1 optical wavelength 1500 1580 nm spectral width (-20db) 1 nm optical extinction ratio er 9 db sidemode supression ratio ssr min 30 db optical rise/fall time t r / t f 180 ps 2 total generated transmitter jitter (peak to peak) j tx p-p 0.07 ui total generated transmitter jitter (rms) j tx rms 0.007 ui receiver average rx sensitivity @ 2.67gb/s r sens1 -9 -28 dbm 3 average rx sensitivity @ oc-48 r sens1 -9 -28 dbm 3 average rx sensitivity @ 2x fibre channel r sens2 -9 -28 dbm 4 average rx sensitivity @ gigabit ethernet r sens3 -9 -30 dbm 4 average rx sensitivity @ oc-12 r sens4 -9 -29 dbm 5 average rx sensitivity @ oc-3 r sens5 -15 -30 dbm 5 optical center wavelength c 1270 1600 nm los de-assert los d -30 dbm los assert los a -41 dbm los hysteresis 0.5 db notes : 1. class 1 laser safety per fda/cdrh and en (iec) 60825 regulations. 2. unfiltered, 20-80% 3. with worst-case extinction ratio at 10 -10 ber. measured with a prbs 2 31 -1 test pattern interspersed with 72 consecutive ones and 72 consecutive zeros. 4. with worst-case extinction ratio. measured with a prbs 2 7 -1 test pattern. 5. with worst-case extinction ratio. measured with a prbs 2 23 -1 test pattern.
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 5 v. general specifications parameter symbol min typ max units ref. data rate br 155 2667 mb/s 1 bit error rate ber 10 -12 2 max. supported link length on 9/125 m smf @ oc-48 l max1 80 km 3 max. supported link length on 9/125 m smf @ 2x fibre channel l max2 85 km 3 max. supported link length on 9/125 m smf @ gigabit ethernet l max3 100 km 3 max. supported link length on 9/125 m smf @ oc-12 l max4 100 km 3 max. supported link length on 9/125 m smf @ oc-3 l max5 100 km 3 notes : 1. sonet oc-48 lr-2/sdh stm l-16.2, gigabit ethernet and 1x/2x fibre channel compliant. compatible with sonet oc-12 and oc-3. supports fec at 2.67gb/s. 2. tested with a prbs 2 31 -1 test pattern interspersed with 72 consecutive ones and 72 consecutive zeros unless otherwise specified. 3. attenuation of 0.275 db/km is used for the link length calculations (per gr-253 core). a 2db penalty is included for dispersion on >2gb/s data rates. distances are indicative only. please refer to the optical specifications in table iv to calculate a more accurate link budget based on specific conditions in your application. vi. environmental specifications finisar sfp transceivers have an industrial operating temperature range from -40c to +85c case temperature. parameter symbol min 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 class 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 available at finisar corporation upon request.
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 6 viii. digital diagnostic functions finisar ftlf1621p2xtl sfp transceivers support 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 same electrical specifications. the standard sfp serial id provides access to identification information that describes the transceiver?s capabilities, standard interfaces, manufacturer, and other information. additionally, finisar sfp transceivers provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. it also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular 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 bit address 1010001x (a2h), so the originally defined serial id memory map remains unchanged. the interface is identical 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 interface for sfp optical transceivers?. the operating and diagnostics information 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 serial 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 transceiver. the serial data signal (sda, mod def 2) is bi-directional for serial data transfer. the host uses sda in conjunction with scl to mark the start and end of serial protocol 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 or finisar application note an-2030. digital diagnostics for the ftlf1621p2xtl are externally calibrated by default. please note that evaluation board fdb-1018 is available with finisar moddemo software that allows simple to use communication over the 2-wire serial interface.
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 7 ix. mechanical specifications finisar?s small form factor pluggable (sfp) transceivers are compatible with the dimensions defined by the sfp multi-sourcing agreement (msa) 3 . FTLF1621P2BTL
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 8 ftlf1621p2wtl
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 9 x. pcb layout and bezel recommendations
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 10
ftlf1621p2xtl pl uggable sfp product specification ? january 2006 ? finisar corporation january 20, 2006 rev.a page 11 xi. references 1. small form factor pluggable (sfp) transceiver multi-source agreement (msa), september 2000. documentation is currently available at finisar upon request. 2. telcordia gr-253 and itu-t g.957 specifications (transmitter optical output power complies with sonet oc-48 requirements only). 3. ieee std 802.3, 2002 edition, clause 38, pmd type 1000base-lx. ieee standards department, 2002. (*) 4. ?fibre channel draft physical interface specification (fc-pi-2 rev 7.0)?. american national standard for information systems. (*) 5. directive 2002/95/ec of the european council parliament and of the council, ?on the restriction of the use of certain hazardous substances in electrical and electronic equipment.? january 27, 2003. (*) neither ieee 802.3 nor fc-pi-2 rev 7.0 specifies a 1550nm dfb single mode interface. the ftlf1621p2xtl complies with these standards except for receiver sensitivity, and transmit output power. see section iv for details. xii. 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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