datasheet 10gbase-cx4 compliant (ieee 802.3ak) 15 meters reach on appropriate cx4-grade copper cable -- 4-channel full-duplex copper cable support msa compatible form factor (xfp) xfi high-speed host electrical interface serial two-wire interface with scl/sda lines z-axis front panel pluggable 30-pin host connector mdi socket for cx4, in niband, and fibre channel compatibility xfp power level 2 compliance hot-pluggable electronics 0c to 70c case temperature operating range rohs 5/6 compliance features 10gbase-cx4 copper xfp transceiver XFP-CX4 overview the XFP-CX4 copper transceiver from mrv communications provides cost-effective and reliable bandwidth transport of up to 12.5 gigabits over distances of up to 15 meters. the product provides 4 full-duplex, 3.125 gigabaud transmit and receive channels over a single parallel copper cable that is transparent to the user. it not only offers the ability to scale net bandwidth in 10 gigabit increments, it also mates directly with the industry standard mdi electrical socket. the XFP-CX4 is ideal for telecom central of ce and enterprise data center applications. whether extending bandwidth in-system or inter-connecting between systems, the xfp- cx4 transceiver offers an attractive combination of high performance and low cost in an industry standard form factor. 10 gigabit ethernet enterprise routers workgroup routers and switches servers nic cards storage interfaces supercomputers applications absolute maximum ratings parameter symbol min. typical max. units notes storage temperature t s -20 - 100 c 1 supply voltage (3.3 v) vcc3 -0.5 - 3.6 v 1 supply voltage (1.8 v) vcc2 -0.5 - 2.0 v 1 cmos data input voltage v i -0.3 - v cca +0.3 v 1 cml output current i d -50 - 50 ma 1 relative humidity rh 5 - 95 % 1, 2 notes: 1. exceeding the absolute maximum ratings can permanently damage the module. 2. non condensing. not intended for applications requiring agueous wash. 1
datasheet recommended operating conditions parameter symbol min. typical max. units notes operating case temperature t c +0 - +70 oc - supply voltage (3.3 v) vcc3 3.14 3.3 3.47 v 5% power supply rejection psr - - 200 mv p-p 1 supply voltage (1.8 v) vcc2 1.71 1.80 1.89 v 5% signaling rate - - 10.3125 - gbd 2 clock skew (from 10.3125 gbps) - - - 100 ppm - scl clock rate scl - - 400 khz - scl/sda i/o voltage (lvttl) (host pull to 3.3 v) v l / v h -0.3 / vcc3*0.7 - vcc3*0.3 / vcc3+0.5 v - serial data input termination di erential r dl - 100 - ohm 3 notes: 1. tested with 200 mv p-p broadband noise in the frequency range from 44 khz to 400 mhx on the 3.3v vcc supply. 2. limited to 10 gb/s ethernet lan data. 3. the high-speed serial transmitters data inputs are inter nally terminated for use with external transmission lines that ha ve a characteristic impedance of zo = 100 ohms di erential. receiver speci cations (electrical) parameter symbol min. typical max. units notes cable type standard 4 channel cx4 cable - connector durability 100----1 connector style industry standard mdi copper connector - notes: 1. insertions/extractions electrical characteristics, general parameter symbol min. typical max. units notes supply voltage (3.3 v) vcc3 3.14 3.3 3.47 v - supply current (3.3 v) icc3 - 100 - ma - supply voltage (1.8 v) vcc2 1.71 1.8 1.89 v - supply current (1.8 v) icc2 - 500 - ma - power dissipation p dist - - 2.0 w - tx_dis, p_down/rst voltage v l / v h -0.3 / 2.0 - 0.8 / vcc3+0.3 v - rx_los, mod_nr, interrupt v l / v h 0 / host_vcc-0.5 - 0.40 / host_vcc+0.31 v - p_down reset time - 10 - - s - 2
datasheet electrical transmitter characteristics (cable side, cx4 side) parameter symbol min typical max unit notes di erential peak-to-peak output voltage swing v out 800 - 1200 mv 1 di erential voltage di erence (lane to lane) v out - - 175 mv - common mode output voltage v com 0.5 0.75 1.0 v - data output rise time (20%/80%) t r 60 - 130 ps 2 data output fall time (80%/20%) t f 60 - 130 ps 2 deterministic jitter dj - - 0.17 ui - total jitter tj - - 0.35 ui - vcc for active module (when active module present) vcc 3.15 3.3 3.46 v - resistor attached to type_sense for turning on power to active module r type_sense - 5.1 - kohm - notes: 1. v out = [ (v out + p-p ) - (v out - p-p )] 2. power will not be supplied to that pin if a copper cable or any module without a resistor of proper value attached to the type_sense pin. the resistor should be 5.1k 10% electrical receiver characteristics (cable side, cx4 side) parameter symbol min. typical max. units notes receiver di erential input voltage v in 100 - 2000 mv p-p 1 deterministic jitter tolerance dj 0.65 - - ui 2 total jitter tolerance tj 0.75 - - ui - notes: 1. v in = [ (v in + p-p ) - (v in - p-p )] 2. if the incoming dj is caused by copper cable then it can be compensated by equalization in the receiver. in this ase the dj tolerance could be as high as 1ui. 6 1 s 1 s5 9 g 1 g 2 s 1 s 6 s 5 s 1 s2 1 s1 5 g 6 1 s 1 s5 9 g 1 g 2 s 1 s 6 s 5 s 1 s2 1 s1 5 g front-view cx4 connector electrical pin map (cable side, cx4 side) 3
datasheet electrical pin map (cable side, cx4 side) sff-8470 mdi connector function active module pin assignment g1 gnd g2 odis g3 gnd g4 gnd g5 gnd g6 fault- g7 type_sense g8 vcc g9 gnd s1 rx0+ s2 rx0- s3 rx1+ s4 rx1- s5 rx2+ s6 rx2- s7 rx3+ s8 rx3- s9 tx3- s10 tx3+ s11 tx2- s12 tx2+ s13 tx1- s14 tx1+ s15 tx0- s16 tx0+ housing chassis ground signal description, cable side, cx4 side signal functional description gnd circuit ground. connect these pins to the host systems circuit common ground plane. vcc power supply provides +3.3 vdc when an active module (qtr3400) is plugged into the socket. output is ac ground when a regular copper cable is present. tx0+ through tx3+ cml compatible transmitter data out+ for channels 0 through 3, respectively. tx0- through tx3- cml compatible transmitter data out- for channels 0 through 3, respectively. rx0+ through rx3+ cml compatible transmitter data in+ for channels 0 through 3, respectively. rx0- through rx3- cml compatible transmitter data in- for channels 0 through 3, respectively. odis used to control the active module. grounded in this cx4 implementation. type_sense used to determine whether or not active module is present. it is an ac ground. fault- transmitter fault signal or loss signal from receiver side. grounded in this cx4 implementation. note: the cable side pin assignment is compatible with the fibre channel standard proposal (pi-2) that supports active modules. when a copper cable is plugged in, then all g_signals are ground. 4
datasheet electrical pin map, host side, xfi side 5
datasheet electrical pin map, host side, xfi side, bottom side of board pin logic name functional description notes 1 - gnd module ground 1 2 vee5 optional -5.2 v power supply - 3 lvttl-i mod_desel module de-select; when held low allows module to respond to 2-wire serial inter- face - 4 lvttl-o interrupt_n indicates presence of an important condition which can be read over the 2-wire serial interface 2 5 lvttl-i tx_dis transmitter disable; turns o transmitter laser output - 6 vcc5 +5 v power supply - 7 - gnd module ground 1 8 - vcc3 +3.3 v power supply - 9 - vcc3 +3.3 v power supply - 10 lvttl-i/o scl 2-wire serial interface clock 2 11 lvttl-i/o sda 2-wire serial interface data line 2 12 lvttl-o mod_abs indicates module is not present. grounded in the module 2 13 lvttl-o mod_nr module not ready; indicating module operational fault 2 14 lvttl-o rx_los receiver loss of signal indicator 2 15 - gnd module ground 1 16 - gnd module ground 1 17 cml-o rd_n receiver inverted data output - 18 cml-o rd_p receiver non-inverted data output - 19 - gnd module ground 1 20 - vcc2 +1.8 v power supply - 21 lvttl-i p_down/rst power down; when high, requires the module to limit power consumption to 1.5 w or below. 2-wire serial interface must be functional in the low power mode. reset; the falling edge initiates a complete reset of the module including the 2-wire serial interface, equivqlent to a power cycle. - 22 - vcc2 +1.8 v power supply - 23 - gnd module ground 1 24 pecl-i refclk_n reference clock non-inverted input, ac coupled on the host board - 25 pecl-i refclk_p reference clock inverted input, ac coupled on the host board - 26 - gnd module ground 1 27 - gnd module ground 1 28 cml-i td_n transmitter inverted data input - 29 cml-i td_p transmitter non-inverted data input - 30 - gnd module ground 1 notes: 1. XFP-CX4 module ground pins are isolated from the module case ground. 2. must be pulled up with 4.7 k-10 kohms to a voltage between 3.15 v and 3.45 v on the host board. 6
datasheet mrv-op-xfpcx4-031008 copyright ?008 mrv communications, inc. all rights reserved. 3020043-001 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. module outline dimensions, in mm ordering information model description data rate distance (m) XFP-CX4 10 gbe -cx4 copper xfp transceiver up to 12.5 gbps 15
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