datasheet 8 gbps bi-directional sfp+ transceiver SFP-8GD-LR 1 absolute maximum ratings* parameter symbol minimum maximum unit note maximum supply voltage v cc -0.5 4.0 v - case operating temperature t a -5 85 oc - storage temperature t s -40 85 oc - relative humidity (non-condensing) rh 0 85 % - *exceeding the limits listed in the table may damage the transceiver module permanently general speci cations parameter symbol minimum maximum unit note data rate br 2.125 8.5 gbps 1 bit error rate ber - 10 -12 -2 max. supported link length on 9/125 m smf, 2.125, 4.25, 8.5 gbps l max1 -10km3 notes: 1. 2x/4x/8x fibre channel compliant. 2. tested with a prbs 2 7 -1 test pattern. 3. distances are based on ieee 802.3 standards and fc-pi-4 rev. 7.00 (fibre channel physical interface-4 speci cation. american national standard for information systems, september 20, 2007.) features designed for sff-8472 compliance (sfp) up to 8.5 gbps data rates - 2.125/4.25/8.5 gbps fibre channel single-mode optics (duplex lc) dual- ber, bi-directional class 1 laser (tx): 1310 nm up to 10 km on 9/125 m smf digital diagnostics (sff-8472) commercial operating temperature range rohs compliant and lead free metal enclosure, for lower emi
datasheet 2 electrical speci cations parameter symbol minimum maximum unit note supply voltage v cc 3.00 3.60 v 1 supply current i cc - 300 ma 1 transmitter input di erential impedance r in 80 120 2 single ended data input swing v in, pp 90 350 mv - transmit disable voltage v d 2v cc v- transmit enable voltage v en v ee v ee + 0.8 v 3 receiver single ended data output swing v out, pp 150 425 mv 4 data output rise/fall time @ 2.125 gbps, 4.25 gbps t r, t f - 120 ps 5 data output rise/fall time @ 8.5 gbps t r, t f -60ps5 los fault v los fault 2v cc host v6 los normal v los norm v ee v ee + 0.8 v 6 power supply rejection psr 100 - mvpp 7 deterministic jitter contribution < 4.25 gbps rx dj - 51.7 ps 8,9 total jitter contribution < 4.25 gbps rx tj - 122.4 ps 9 deterministic jitter contribution = 4.25 gbps rx dj - 25.9 ps 8,9 total jitter contribution = 4.25 gbps rx tj - 61.2 ps 9 notes: 1. module power consumption never exceeds 1w. 2. ac coupled. 3. or open circuit. 4. into 100 ohm di erential termination. 5. 20 C 80 %. 6. los is lvttl. logic 0 indicates normal operation; logic 1 indicates no signal detected. 7. all transceiver speci cations are compliant with a power supply sinusoidal modulation of 20 hz to 1.5 mhz up to speci ed value applied through the power supply ltering network shown on page 23 of the small form-factor pluggable (sfp) transceiver multisource agreement (msa) 6, september 14, 2000. the power supply rejection applies for a supply voltage range of 3.1 to 3.6 v. 8. measured with dj-free data input signal. in actual application, output dj will be the sum of input dj and dj. 9. for 8.5 gbps operation, jitter values for gamma t and gamma r are controlled by tdp and stressed receiver sensitivity.
datasheet 3 optical speci cations parameter symbol minimum maximum unit note transmitter output optical power @ 8.5 gbps p o, rh -8.4 0.5 dbm 1 output optical power @ 2.125, 4.25 gbps p o, rl -8.4 -3 dbm 2 optical wavelength 1285 1345 nm 3 spectral width - 1 nm 3 optical modulation amplitude oma -5.4 - dbm 3,4 transmitter and dispersion penalty @ 8.5 gbps tdp - 3.2 db 5 optical rise/fall time @ 2.125, 4.25 gbps t r /t f -90ps6 relative intensity noise rin - -128 db/hz - receiver unstressed receiver oma sensitivity @ 8.5 gbps r sensr - -13.8 dbm 7 unstressed receiver oma sensitivity @ 4.25 gbps r sens4 - -15.4 dbm 7 unstressed receiver oma sensitivity @ 2.125 gbps r sens2 - -18.2 dbm 7 maximum average receiver power rx max 0.5 - dbm - optical center wavelength c 1260 1360 nm - optical return loss - 12 - db - los de-assert los d - -19 dbm - los assert los a -30 - dbm - los hysteresis - 0.5 - db - notes: 1. high bandwidth mode. class 1 laser safety per fda/cdrh and en (iec) 60825 regulations. 2. low bandwidth mode. class 1 laser safety per fda/cdrh and en (iec) 60825 regulations. 3. also speci ed to meet curves in fc-pi-4 rev 7.00 (fibre channel physical interface-4 speci cation. american national standard for information systems, september 20, 2007) figures 21, 22, and 23, which allow trade- o between wavelength, spectral width and oma. 4. equivalent extinction ratio speci cation for fibre channel. allows smaller er at higher average power. 5. for 8.5 gb/s operation, jitter values for gamma t and gamma r are controlled by tdp and stressed receiver sensitivity. 6. un ltered, 20-80%. complies with ieee 802.3 (gig. e), fc 1x and 2x eye masks when ltered. 7. measured with conformance signals de ned in fc-pi-4 rev. 10.0 speci cations. value in oma. measured with prbs 2 7 -1 at 10 -12 ber.
datasheet pin descriptions pin function name/description note 1 v eet transmitter ground (common with receiver ground) 1 2 t fault transmitter fault. 2 3 t dis transmitter disable. laser output disabled on high or open. 3 4 sda 2-wire serial interface data line (mod-def2) 4 5 sca 2-wire serial interface clock (mod-def1) 4 6 mod_abs module absent, connected to v eet or v eer 4 7 rs0 rx rate select: open or low = 2.125 or 4.25 gbps fibre channel (low bandwidth) high = 8.5 gbps fibre channel (high bandwidth) 5 8 los loss of signal indication. logic 0 indicates normal operation. 6 9 rs1 tx rate select: open or low = 2.125 or 4.25 gbps fibre channel (low bandwidth) high = 8.5 gbps fibre channel (high bandwidth) 5 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. t fault is an open collector/drain output, which should be pulled up with a 4.7 k C 10 kohms resistor on the host board if intended for use. pull up voltage should be between 2.0 v to vcc + 0.3 v. a high output indicates a transmitter fault caused by either the tx bias current or the tx output power exceeding the preset alarm thresholds. a low output indicates normal operation. in the low state, the output is pulled to < 0.8 v. 3. laser output disabled on t dis > 2.0 v or open, enabled on t dis < 0.8 v. 4. should be pulled up with 4.7 k C 10 kohms on host board to a voltage between 2.0 v and 3.6 v. mod_abs pulls line low to indicate module is plugged in. 5. rate select can also be set through the 2-wire bus in accordance with sff-8472 v. 10.1. rx rate select is set at bit 3, b yte 110, address a2h. tx rate select is set at bit 3, byte 118, address a2h. note: writing a 1 selects maximum bandwidth operatio n. rate select is the logic or of the input state of rate select pin and 2-wire bus. 6. los is open collector output. should be pulled up with 4.7 k C 10 kohms on host board to a voltage between 2.0 v and 3.6 v. logic 0 indicates normal operation; logic 1 indicates loss of signal. 4
datasheet veet veet veer veer td- td+ rd+ rd- vcct vccr veet veer tx_fault sd a scl mod_abs rs0 rx_los 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 towards tx_disable rs1 towards bezel a sic diagram of host board connector block pin numbers and names mechanical dimensions 5
datasheet mrv-op-sfp8gdlr-031609 copyright ?2009 mrv communications, inc. all rights reserved. 3020073-001 rev. a1 mrv has more than 50 o ces throughout the world. addresses, phone numbers and fax numbers are listed at www.mrv.com. please e-mail us at sales@mrv.com or call us for assistance. mrv los angeles mrv boston mrv international 20415 nordho st. 295 foster st. business park moerfelden chatsworth, ca 91311 littleton, ma 01460 waldeckerstrasse 13 800-338-5316 800-338-5316 64546 moerfelden-walldorf 818-773-0900 978-952-4700 germany tel. (49) 6105/2070 fax (49) 6105/207-100 all statements, technical information and recommendations related to the products herein are based upon information believed to be reliable or accurate. however, the accuracy or completeness thereof is not guaranteed, and no responsibilit y is assumed for any inaccuracies. please contact mrv c ommunications for more information. mrv communications and the mrv communications logo are trademarks of mr v communications, inc. other trademarks are the property of their respective holders. ordering information model description data rate (mbps) wavelength (nm) connector bail latch color max. link length (km) SFP-8GD-LR sfp+, 2.125 / 4.25 / 8.5 gb/s, sm, with digital diagnostics. 2125 - 8500 1310 duplex lc blue 0 -10 class 1 laser product, complies with 21cfr 1040.10, 1040.11 and en 60825-1 certi ed by one or more of the following agencies: tv, ul, csa rohs directive; china rohs; california rohs law, reach directive svhc regulatory and industry compliances please visit http://www.mrv.com or contact a sales repr esentative for more information and for ordering.
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