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f i n i s a r finisar corporation march 200 6 rev a page 1 product specification oc - 48 lr - 2/stm l - 16.2 multirate 2x10 sff transceiver ftlf 1621s1xcl product features up to 2.67gb/s bi - directional data links standard 2x10 pin sff footprint (msa compliant) analog diagnostics functions uncooled 1550nm dfb laser tr ansmitter apd receiver duplex lc connector very low jitter metal enclosure, for lower emi single 3.3v power supply low power dissipation <900mw typical extended operating temperature range: - 10c to 70 c applications sonet oc - 48 lr - 2 / sdh stm l - 16.2 sonet oc - 12 lr - 2 / sdh stm l - 4.2 sonet oc - 3 lr - 2 / sdh stm l - 1.2 gigabit ethernet / 1x/2x fibre channel finisar?s ftlf 1621s1xcl small form factor (sff) transceivers are compatible with the small form factor multi - sourcing agreement (msa) 1 . they comply wi th sonet oc - 48 lr - 2 (sdh stm l - 16.2) standards 2 , and are compatible with gigabit ethernet as specified in ieee std 802.3 3 , fibre channel fc - pi 13.0 4 , sonet oc - 12 and sonet oc - 3 standards 2 . the transceivers are rohs compliant and lead - free per directive 2002 /95/ec 5 and finisar application note an - 2038 6 product selection ftlf 1621s 1 xcl g 2 grounding pins, short em i shield m 6 grounding pins, short emi shield k 2 grounding pins, long emi shield x h 6 grounding pins, long emi shield
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? march 200 6 f i n i s a r finisar corp oration march 200 6 rev a page 2 i. pin descriptions pin symbol name/description logic family ms ms mounting studs for mechanical attachment. chas sis ground is internally isolated from circuit ground. connection to chassis ground is recommended. na 1 pd receiver power monitor. this pin must be connected to a positive voltage supply (vcc), preferably via a small resistor. supplies photocurrent and may be used to monitor received power. analog current 2,3,6 v eer receiver ground (common with transmitter ground) na 4,5 nc not connected. 7 v ccr receiver power supply na 8 sd signal detect. logic 1 indicates normal operation. lvttl 9 rd - receiver inverted data out. ac coupled cml 10 rd+ receiver non - inverted data out. ac coupled cml 11 v cct transmitter power supply na 12,16 v eet transmitter ground (common with receiver ground) na 13 t dis transmitter disable lvttl 14 td+ transmitter non - inverted data in . ac coupled. cml ecl 15 td - transmitter inverted data in . ac coupled. cml ecl 17 bmon - laser bias monitoring ( - ). analog voltage 18 bmon+ laser bias monitoring (+) .(bmon+ - bmon - ) = 10 w x laser bias current. analog voltage 19 pmo n - laser power monitoring ( - ). current implementation connects this pin to ground analog voltage 20 pmon+ laser power monitoring (+) .(pmon+ - pmon - ) = 200 w x mon. photodiode current. analog voltage top view 6 7 8 9 10 ms ms 1 2 3 4 5 15 14 13 12 11 20 19 18 17 16
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 3 ii. absolute maximum ratings parameter symbol min typ max unit notes maximum supply voltage vcc - 0.5 4.5 v storage temperature t s - 40 85 c case operating temperature t op - 10 70 c relative humidity rh 0 85 % 1 lead soldering temperature/time 260/10 c/s iii. electrical characteristics (t op = - 10 to 70 c, v cc = 3.00 to 3.60 volts) parameter symbol min typ max unit notes supply voltage vcc 3.00 3.60 v supply current icc 270 340 ma transmitter input differential impedance r in 100 w 2 single ended data input swing vin,pp 2 50 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 sd assert v sd assert vcc ? 0.5 vcc v 6 sd de - assert v sd deassert vee vee+0.5 v 6 power supply rejection psr 100 mvpp 7 total generated receiver jitter (pea k to peak) j rx p - p 0.07 ui 8 total generated receiver jitter (rms) j rx rms 0.007 ui 8 notes : 1. non condensing. 2. ac coupled. 3. or open circuit. 4. into 100 ohms differential termination. 5. 20 ? 80 % 6. signal detect is lvttl. logic 0 indicates normal operation; log ic 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) 2 , september 14, 2000. 8. parameters per gr - 253 2 section 5.6 for oc - 48b.
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 4 iv. optical characteristics (t op = - 10 to 70 c, v cc = 3.00 to 3.60 volts) parameter symbol min typ max unit notes transmitter output opt. pwr: 9/125 smf p out - 2 +3 dbm 1 optical wavelength l 1500 1580 nm spectral width ( - 20db) s 1 nm optical extinction ratio er 8.2 db sidemode suppression ratio ssr min 30 db optical rise/fall time t r / t f 180 ps 2 relative intensity noise rin - 120 db/hz tota l generated transmitter jitter (peak to peak) j tx p - p 0.07 ui 3 total generated transmitter jitter (rms) j tx rms 0.007 ui 3 dispersion penalty at 80 km 2.0 db 4 receiver average rx sensitivity @ 2.67gb/s r sens1 - 9 - 28 dbm 5 average rx sen sitivity @ oc - 48 r sens1 - 9 - 28 dbm 5 average rx sensitivity @ 2x fibre channel r sens2 - 9 - 28 dbm 6 average rx sensitivity @ gigabit ethernet r sens3 - 9 - 30 dbm 6 average rx sensitivity @ oc - 12 r sens4 - 9 - 29 dbm 7 average rx sensitivity @ oc - 3 r sens5 - 15 - 30 dbm 7 optical center (input) wavelength l c 1270 162 0 nm receiver reflectance r rx - 27 db sd assert sd a - 28 dbm sd de - assert sd d - 41 dbm sd hysteresis 0.5 db notes : 1. class 1 laser safety per fda/cdrh and en (iec) 60825 regulations. 2. unfiltered, 20 - 80% 3. parameters per gr - 253 2 section 5.6 for oc - 48b. 4. smf - 28 fiber used. 80 kms represents 1600ps /nm at 1550nm. measured at 2.488 gb/s with a prbs 2 23 - 1 pattern extrapolated to ber<10 - 12 . 5. with worst - case extinction ratio at 10 - 10 ber. measured with a prbs 2 31 - 1 test pattern inter spersed with 72 consecutive ones and 72 consecutive zeros. 6. with worst - case extinction ratio. measured with a prbs 2 7 - 1 test pattern. 7. with worst - case extinction ratio. measured with a prbs 2 23 - 1 test pattern.
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 5 v. general specifications parameter symb ol min typ max units notes data rate br 155 2667 mb/s 1 bit error rate ber 10 - 12 2 max. supported link length on 9/125 m m smf @ oc - 48 l max1 80 km 3 max. supported link length on 9/125 m m smf @ 2x fibre channel l max2 85 km 3 max. supported link l ength on 9/125 m m smf @ gigabit ethernet l max3 100 km 3 max. supported link length on 9/125 m m smf @ oc - 12 l max4 100 km 3 max. supported link length on 9/125 m m smf @ oc - 3 l max5 100 km 3 notes : 1. sonet oc - 48 lr - 2/sdh stm l - 16.2 compliant. compatible with gigabit ethernet, 1x/2x fibre channel, 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 parameter symbol min typ max units case operating temperature t op - 10 70 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.
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 6 viii. analog diagnostics functions (t op = - 10 c to 70 c, v cc = 3.00 to 3.60 volts) parameter symbol min typ max unit notes transmitter monitor photodiode current monitor pmon+, pmon - 0 vcc v 1 laser bia s current monitor bmon+, bmon - 0 vcc v 2 receiver received photocurrent rpd 0 1 ma 3 photodiode responsivity r 0.5 0.9 1.0 a/w applied voltage at pd pin vpd 2.4 vcc v 3 notes : 1. pins 19 and 20 provide an analog voltage output proportional to the monitor photodiode current, per the following formula: i bias = .v(pmon+ - pmon - ) / 200 w . the figure below shows the equivalent circuit. 2. pins 17 and 18 provide an analog voltage output proportional to the laser bias current, per the following formula: i bias = .v(bmon+ - bmon - ) / 10 w . the figure below shows the equivalent circuit. 3. pin 1 is used to monitor the received photocurrent. it must be connected to a positive voltage within the range specified above. the current that flows into this pin is the r eceived photocurrent. the received power is given by the photocurrent multiplied by the photodiode responsivity. vcc 10 w 3 k w 3 k w bmon+ bmon- ibias vcc 200 w 3 k w 3 k w pmon+ pmon- imon laser monitor photodidoe vpd receiver photodidoe ipd analog monitoring function connections.
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 7 ix. mechanical specifications finisar?s oc - 48/stm - 16 small form factor (sff) t ransceivers comply with the standard dimensions defined by the small form factor multi - sourcing agreement (msa). ftlf 1621 s1gcl ? 2 pin version
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 8 ftlf 1621s 1 h cl ? 6 pin version
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 9 ftlf 1621s 1 h cl ? 6 pin version ( l o ng emi shield)
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 10 x. pcb layout and bezel recommendations minimum recommended module - to - module spacing is 0.6 inches
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 11 xi. references 1. small form factor pluggable (sf f ) transceiver multi - source agreement (msa), january 199 8 . documentation is currently available from finisar upon request. 2. ?sonet transport sys tems: common generic criteria?, telcordia technologi es, gr - 253 - core, issue 3, sept 2000. also refer to itu - t g.957 specification s 3. ieee std 802.3, 2002 edition, clause 38, pmd type 1000base - lx. ieee standards department, 2002. (transmit optical output ha s a minimum extinction ratio of 8.2 db only). (*) 4. ?fibre channel draft physical interface specification (fc - pi 13.0)?. 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. 6. ?application note an - 2038: finisar implementation of rohs compliant transceivers:. finisar corporation, january 21, 2005. (*) neither ieee 802.3 nor fc - pi 13.0 specifies a 1550nm dfb single mode inte rface. the ftlf 1621s1xcl complies with these standards except for receiver sensitivity, er 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 - 5 48 - 1000 fax 1 - 408 - 541 - 6138 sales@finisar.com www.finisar.com
ftlf 1621s1xcl 2x10 pin sff produ ct specification ? november 2005 f i n i s a r finisar corp oration march 200 6 rev a page 12

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