lc? is a trademark of lucent fiber optics january 2002 V23818-M305-B57 small form factor pluggable sfp multimode 850 nm 2.125 and 1.0625 gbd fibre channel transceiver with lc? connector preliminary features small form factor pluggable transceiver fully sfp msa compliant (1) advanced release mechanism ? easy access, even in belly to belly applications ? grip for easy access - no tool is needed ? color coded release mechanism mm: black color coding sm: blue color coding excellent emi performance rj-45 style lc? connector system single power supply (3.3 v) extremely low power consumption of 415 mw typical data rate autonegotiation between 1.0625 and 2.125 gbd small size for high channel density ul-94 v-0 certified esd class 1 per mil-std 883d method 3015.7 compliant with fcc (class b) and en 55022 for distances of up to 700 m (50 m fiber) class 1 fda and iec laser safety compliant ac/ac coupling according to sfp msa recommendation: infineon cage one-piece design v23818-s5-n1 for press fit and/or solderable operating case temperature: ?10c to 85c note 1. the sfp msa can be found at www.infineon.com/fiberoptics next to the transceiver datasheets. absolute maximum ratings exceeding any one of these values may destroy the device immediately. package power dissipation................................................ 1.5 w data input levels (pecl) ............................................v cc +0.5 v differential data input voltage ............................................ 2.4 v storage ambient temperature ............................ ?40 c to 85c v cc max.............................................................................. 5.5 v ecl-output current data ................................................... 50 ma dimensions in mm [inches]
fiber optics V23818-M305-B57, sfp mm 850nm 2.125/1.0625gbd fibre channel trx (lc?) 2 description the infineon fibre channel multimode transceiver ? part of infineon small form factor transceiver family ? is based on the physical medium depend (pmd) sublayer and baseband medium, type (short wavelength), fibre channel fc-pi 200-m5-sn-i, 200-m6-sn-i fc-pi 100-m5-sn-i, 100-m6-sn-i fc-ph2 100-m5-sn-i, fc-ph2 100-m6-sn-i. the appropriate fiber optic cable is 62.5 m or 50 m multi- mode fiber with lc? connector. operating range over each optical fiber type at 2.125 gbd operating range over each optical fiber type at 1.0625 gbd the infineon fibre channel multimode transceiver is a single unit comprised of a transmitter, a receiver, and an lc? recepta- cle. this transceiver supports the lc? connectorization concept. it is compatible with rj-45 style backpanels for high end data com and telecom applications while providing the advan- tages of fiber optic technology. the module is designed for low cost san, lan, wan, fibre channel applications. it can be used as the network end device interface in mainframes, workstations, servers, and storage devices, and in a broad range of network devices such as bridges, routers, hubs, and local and wide area switches. this transceiver operates at 1.0625 gbd / 2.125 gbd from a sin- gle power supply (+3.3 v). the full differential data inputs and outputs are pecl and lvpecl compatible. functional description of sfp transceiver this transceiver is designed to transmit serial data via multimode cable. functional diagram the receiver component converts the optical serial data into pecl compatible electrical data (rd+ and rd?). the los of signal (los, active low) shows whether an optical signal is present. the transmitter converts pecl compatible electrical serial data (td+ and td?) into optical serial data. data lines are differen- tially 100 ? terminated. the transmitter contains a laser driver circuit that drives the modulation and bias current of the laser diode. the currents are controlled by a power control circuit to guarantee constant out- put power of the laser over temperature and aging. the power control uses the output of the monitor pin diode (mechanically built into the laser coupling unit) as a controlling signal, to pre- vent the laser power from exceeding the operating limits. single fault condition is ensured by means of an integrated automatic shutdown circuit that disables the laser when it detects laser fault to guarantee the laser eye safety. the transceiver contains a supervisory circuit to control the power supply. this circuit makes an internal reset signal when- ever the supply voltage drops below the reset threshold. it keeps the reset signal active for at least 140 milliseconds after the voltage has risen above the reset threshold. during this time the laser is inactive. a low signal on txdis enables transmitter. if txdis is high or not connected the transmitter is disabled. the information which kind of sfp module has been plugged into an sfp port can be read through the mod-def interface. the information is stored in an i 2 c-eprom inside the sfp trans- ceiver. fiber type min. typ. (meters) max. 62.5 micron mmf 0.5 2 to 150 300 50.0 micron mmf 0.5 2 to 300 500 fiber type min. typ. (meters) max. 62.5 micron mmf 0.5 2 to 300 400 50.0 micron mmf 0.5 2 to 550 700 laser driver power control receiver o/e o/e laser e/o rx coupling unit td ? td+ txdis txfault rd ? rd+ los laser coupling unit multimode fiber len monitor automatic shut-down eprom mod-def
fiber optics V23818-M305-B57, sfp mm 850nm 2.125/1.0625gbd fibre channel trx (lc ? ) 3 technical data the electro-optical characteristics described in the following tables are valid only for use under the recommended operating conditions. recommended operating conditions transmitter electro-optical characteristics notes 1. into multimode fiber, 62.5 m or 50 m diameter. 2. laser power is shut down if power supply is below v th and switched on if power supply is above v th after t res . 3. fibre channel pi standard. receiver electro-optical characteristics notes 1. average optical power at which the ber is 1 x 10e ? 12. measured with a 2 7 ? 1 nrz prbs and er=9 db. 2. an increase in optical power above the specified level will cause the los of signal output to switch from a high state to a low state. 3. a decrease in optical power below the specified level will cause the los of signal to change from a low state to a high state. 4. ac/ac for data. load 50 ? to gnd or 100 ? differential. for dynamic measurement a tolerance of 50 mv should be added. 5. supply current excluding rx output load. 6. measured at the given stressed receiver eyeclosure penatly and dcd component given in fibre channel pi standard (2.03/2.18 db & 40/80 ps). 7. fibre channel pi standard. parameter symbol min. typ. max. units case temperature t c ? 10 85 c power supply voltage v cc ? v ee 3.1 3.3 3.5 v transmitter data input differential voltage v diff 250 2400 mv receiver input center wavelength c 770 860 nm transmitter symbol min. typ. max. units launched power (average) (1) p o ? 9.5 ? 6 ? 4dbm optical modula- tion amplitude (3) 2.125 gbit/s oma 196 450 w 1.0625 gbit/s 156 450 center wavelength c 830 850 860 nm spectral width (rms) l 0.85 relative intensity noise rin ? 117 db/hz extinction ratio (dynamic) er 9 13 db total tx jitter tj 40 80 ps reset threshold (2) v th 2.5 2.75 2.99 v reset time out (2) t res 140 240 560 ms rise time, 20% ? 80% t r 150 ps supply current 45 65 ma receiver symbol min. typ. max. units sensitivity (average power) (1) 2.125 gbit/s p in ? 18.5 ? 16 dbm 1.0625 gbit/s ? 19.5 ? 17 saturation (average power) p sat 0 min. optical modulation amplitude (7) 2.125 gbit/s oma 24 49 w 1.0625 gbit/s 19 31 stressed receiv- er sensitivity 50 m fiber (6) 2.125 gbit/s spin 50 m 29 96 1.0625 gbit/s 24 55 stressed receiv- er sensitivity 62.5 m fiber (6) 2.125 gbit/s spin 62.5 m 34 109 1.0625 gbit/s 32 67 los of signal assert level (2) p losa ? 23 ? 18 dbm los of signal deassert level (3) p losd ? 30 ? 25 los of signal hysteresis p losa ? p losd 0.5 2 db los of signal assert time t ass 100 s los of signal deassert time t das 350 receiver 3 db cut off frequency (7) 2.5 ghz receiver 10 db cut off frequency (7) 6 data output differential voltage (4) v diff 0.5 0.7 1.23 v return loss of receiver a rl 12 db supply current (5) 80 90 ma
fiber optics V23818-M305-B57, sfp mm 850nm 2.125/1.0625gbd fibre channel trx (lc ? ) 4 timing of control and status i/o pin description parameter symbol min. max. units condition tx disable assert time t_off 10 s time from rising edge of tx disable to when the optical out- put falls below 10% of nominal. tx disable negate time t_on 1 ms time from falling edge of tx disable to when the modulated optical output rises above 90% of nomi- nal. time to initialize, including reset of tx_fault t_init 300 from power on or negation of tx fault using tx disable. tx fault assert time t_fault 100 s time from fault to tx fault on. tx disable to reset t_reset 10 time tx disable must be held high to reset tx_fault. los as- sert time t_loss_ on 100 time from los state to rx los assert. los deas- sert time t_loss_ off 100 time from non-los state to rx los deassert. serial id clock rate f_serial_ clock 100 khz pin name level/ logic pin# description v ee t transmitter ground n/a 1 tx fault transmitter fault indication ttl 2 logical 1 indicates that la- ser shut-down is active. tx dis- able transmitter disable ttl 3 a low signal switches the laser on. a high signal switches the laser off. if not connected the tx is disabled. mod- def2 module definition 2 ttl 4 mod-def 2 is the data line of two wire serial interface for serial id. mod- def1 module definition 1 ttl 5 mod-def 1 is the clock line of two wire serial interface for serial id. mod- def0 module definition 0 n/a 6 mod-def 0 is grounded by the module to indicate that the module is present. rate select not connected n/a 7 los loss of sig- nal ttl 8 normal operation: logic ? 0 ? output, represents that light is present at re- ceiver input. fault condition: logic ? 1 ? output. v ee rreceiver ground n/a 9 v ee rreceiver ground n/a 10 v ee rreceiver ground n/a 11 rd ? inv. received data out lv pecl 12 ac coupled inside the transceiver. rd+ received data out lv pecl 13 v ee rreceiver ground n/a 14 v cc rreceiver power n/a 15 v cc t transmitter power n/a 16 v ee t transmitter ground n/a 17 td+ transmit data in lv pecl 18 ac coupled inside the transceiver and 100 ? differential terminated. td ? inv. transmit data in lv pecl 19 v ee t transmitter ground n/a 20
fiber optics V23818-M305-B57, sfp mm 850nm 2.125/1.0625gbd fibre channel trx (lc ? ) 5 regulatory compliance eye safety this laser based multimode transceiver is a class 1 product. it complies with iec 60825-1 and fda 21 cfr 1040.10 and 1040.11. to meet laser safety requirements the transceiver shall be oper- ated within the absolute maximum ratings. caution all adjustments have been made at the factory prior to ship- ment of the devices. no maintenance or alteration to the device is required. tampering with or modifying the performance of the device will result in voided product warranty. note failure to adhere to the above restrictions could result in a modifica- tion that is considered an act of ? manufacturing ? , and will require, under law, recertification of the modified product with the u.s. food and drug administration (ref. 21 cfr 1040.10 (i)). laser data required labels laser emission sfp transceiver electrical pad layout feature standard comments compliant with 89/336/eec en 55022 en 55024 esd: electrostatic discharge to the electrical pins eia/jesd22- a114-a (mil-std 883d method 3015.7) class 1 (>1000 v) immunity: against electrostatic discharge (esd) to the duplex lc receptacle en 61000-4-2 iec 61000-4-2 discharges ranging from 2 kv to 15 kv on the receptacle cause no damage to transceiver (under recommended conditions). immunity: against radio frequency electro- magnetic field en 61000-4-3 iec 61000-4-3 with a field strength of 3 v/m rms, noise frequency ranges from 10 mhz to 2 ghz. no effect on transceiver performance between the specification limits. emission: electromagnetic interference (emi) fcc 47 cfr part 15, class b en 55022 class b cispr 22 noise frequency range: 30 mhz to 18 ghz this device complies with part 15 of the fcc rules. operation is sub- ject to the following two conditions: 1. this device may not cause harmful interference. 2. this device must ac- cept any interference received, including in- terference that may cause undesired operation. tested to comply with fcc standards for home or office use sfp V23818-M305-B57 wavelength 850 nm total output power (as defined by iec: 7 mm aperture at 1.4 cm distance) <675 w total output power (as defined by fda: 7 mm aperture at 20 cm distance) <70 w beam divergence 12 class 1 laser product iec complies with 21 cfr 1040.10 and 1040.11 fda tx rx indication of laser aperture and beam 20 11 v ee t td ? td+ v ee t v cc t v cc r v ee r rd+ rd ? v ee r 20 19 18 17 16 15 14 13 12 11 v ee t txfault tx disable mod-def(2) mod-def(1) mod-def(0) rate select los v ee r v ee r 1 2 3 4 5 6 7 8 9 10 top of transceiver bottom of transceiver (as viewed thru top of transceiver)
fiber optics V23818-M305-B57, sfp mm 850nm 2.125/1.0625gbd fibre channel trx (lc ? ) 6 application notes emi-recommendation to avoid electromagnetic radiation exceeding the required limits please take note of the following recommendations. when gigabit switching components are found on a pcb (multi- plexers, clock recoveries etc.) any opening of the chassis may produce radiation also at chassis slots other than that of the device itself. thus every mechanical opening or aperture should be as small as possible. on the board itself every data connection should be an imped- ance matched line (e.g. strip line, coplanar strip line). data, datanot should be routed symmetrically, vias should be avoided. a terminating resistor of 100 ? should be placed at the end of each matched line. an alternative termination can be provided with a 50 ? resistor at each (d, dn). in dc coupled systems a thevenin equivalent 50 ? resistance can be achieved as follows: for 3.3 v: 125 ? to v cc and 82 ? to v ee , for 5 v: 82 ? to v cc and 125 ? to v ee at data and datanot. please con- sider whether there is an internal termination inside an ic or a transceiver. in certain cases signal gnd is the most harmful source of radia- tion. connecting chassis gnd and signal gnd at the plate/ bezel/ chassis rear e.g. by means of a fiber optic transceiver may result in a large amount of radiation. even a capacitive cou- pling between signal gnd and chassis may be harmful if it is too close to an opening or an aperture. if a separation of signal gnd and chassis gnd is not possible, it is strongly recommended to provide a proper contact between signal gnd and chassis gnd at every location where possible. this concept is designed to avoid hotspots. hotspots are places of highest radiation which could be generated if only a few connections between signal and chassis gnd exist. compensation currents would concentrate at these connec- tions, causing radiation. by use of gigabit switching components in a design, the return path of the rf current must also be considered. thus a split gnd plane of tx and rx portion may result in severe emi prob- lems. the cutout should be sized so that all contact springs make good contact with the face plate. for the sfp transceiver a connection of the sfp cage pins to chassis gnd is recommended. if no separate chassis gnd is available on the users pcb the pins should be connected to sig- nal gnd. in this case take care of the notes above. please consider that the pcb may behave like a waveguide. with an r of 4, the wavelength of the harmonics inside the pcb will be half of that in free space. in this scenario even the smallest pcbs may have unexpected resonances. the sfp transceiver can be assembled onto the host board together with all cages and host board connectors complying with the sfp multi source agreement. infineon proposes cage: host board connector: infineon technologies tyco electronics part number: v23818-s5-n1 part number: 1367073-1 sfp host board connector cage
fiber optics V23818-M305-B57, sfp mm 850nm 2.125/1.0625gbd fibre channel trx (lc ? ) 7 eeprom serial id memory contents the data can be read using the 2-wire serial cmos e2prom protocol of the atmel at24c01a or equivalent. notes 1. address 63 is check sum of bytes 0 ? 63 2. address 61 ? 83 vendor serial number 3. date code 4. address 95 is check sum of bytes 64 ? 94 address hex ascii address hex ascii 003 3220 104 3320 207 3420 300 3520 400 3600 500 3700 601 3803 740 3919 840 4056v 90c 41322 10 05 42 33 3 11 01 43 38 8 12 15 44 31 1 13 00 45 38 8 14 00 46 2d - 15 00 47 4d m 16 1e 48 33 3 17 0f 49 30 0 18 00 50 35 5 19 00 51 2d - 20 49 i 52 42 b 21 6e n 53 35 5 22 66 f 54 37 7 23 69 i 55 20 24 6e n 56 00 25 65 e 57 00 26 6f o 58 00 27 6e n 59 00 28 20 60 00 29 41 a 61 00 30 47 g 62 00 31 20 63 (1) e6 address hex ascii address hex ascii 64 00 96 20 65 1a 97 20 66 69 98 20 67 2d 99 20 68 (2) 100 20 69 (2) 101 20 70 (2) 102 20 71 (2) 103 20 72 (2) 104 20 73 (2) 105 20 74 (2) 106 20 75 (2) 107 20 76 (2) 108 20 77 (2) 109 20 78 (2) 110 20 79 (2) 111 20 80 (2) 112 20 81 (2) 113 20 82 (2) 114 20 83 (2) 115 20 84 (3) 116 20 85 (3) 117 20 86 (3) 118 20 87 (3) 119 20 88 (3) 120 20 89 (3) 121 20 90 (3) 122 20 91 (3) 123 20 92 00 124 20 93 00 125 20 94 00 126 20 95 (4) 127 20
published by infineon technologies ag ? infineon technologies ag 2002 all rights reserved attention please! the information herein is given to describe certain components and shall not be considered as warranted characteristics. terms of delivery and rights to technical change reserved. we hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. infineon technologies is an approved cecc manufacturer. information for further information on technology, delivery terms and conditions and prices please contact the infineon technologies offices or our infineon technologies representatives worldwide - see our webpage at www.infineon.com/fiberoptics warnings due to technical requirements components may contain dangerous substances. for information on the types in question please contact your infineon technologies offices. infineon technologies components may only be used in life-support devices or systems with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered. infineon technologies ag fiber optics wernerwerkdamm 16 berlin d-13623, germany infineon technologies, inc. fiber optics 1730 north first street san jose, ca 95112, usa infineon technologies k.k. fiber optics takanawa park tower 20-14, higashi-gotanda, 3-chome, shinagawa-ku to ky o 14 1, j a p a n multimode 850 nm fibre channel sfp transceiver, ac/ac ttl recommended host board supply filtering network example sfp host board schematic vcct vccr sfp module host board 1 uh 1 uh 0.1 uf 0.1 uf 0.1 uf 10 uf 3.3 v 10 uf pld / pal 4.7k to 10k ohms 4.7k to 10k ohms 4.7k to 10k ohms 3.3 v mod_def 0 mod_def 1 mod_def 2 * 30k ohms gnd, r rx_rate rx_los preamp & quantizer rd ? .01 uf .01 uf rd + * * 100 ohms vcc, r * * * .1 uf 10 uf * * * laser driver * * 100 ohms .01 uf .01 uf td ? ? ??? ? ???? ???? ? ? ? ? infineon sfp transceiver ohms
|
