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data sheet 1 2003-03-21 small form factor single mode 1300 nm 1.0625 gbit/s fibre channel 1.25 gigabit ethernet transceiver 2x5/2x10 pinning with lc? connector v23818-k15-lxx preliminary data fiber optics for ordering information see next page. lc? is a trademark of lucent. file: 1119 file: 1120 features small form factor transceiver complies with fibre channel and gigabit ethernet standards rj-45 style lc ? connector system available with or without collar half the size of sc duplex 1x9 transceiver single power supply (3.3 v) low power consumption, 650 mw typical loss of optical signal indicator laser disable input lvpecl differential inputs and outputs ac/ac coupling in accordance to sff msa or optional dc/dc coupling version for distance of up to 10 km on single mode fiber (smf) class 1 fda and iec laser safety compliant multisource 2x5/2x10 footprint 1) small size for high port density ul 94 v-0 certified compliant with fcc (class b) and en 55022 tx and rx power monitor on 2x10 pinning version 1) current msa documentation can be found at www.infineon.com/fiberoptics
v23818-k15-lxx ordering information data sheet 2 2003-03-21 ordering information part number pinning temperature range signal detect collar input output v23818-k15-l37 2x5 0c to 70c lvpecl yes dc dc v23818-k15-l36 ?40c to 85c v23818-k15-l47 0c to 70c lvttl ac ac V23818-K15-L46 ?40c to 85c v23818-k15-l17 2x10 0c to 70c lvpecl dc dc v23818-k15-l16 ?40c to 85c v23818-k15-l57 0c to 70c lvttl ac ac v23818-k15-l56 ?40c to 85c v23818-k15-l35 2x5 0c to 70c lvpecl no dc dc v23818-k15-l45 lvttl ac ac
v23818-k15-lxx pin configuration data sheet 3 2003-03-21 pin configuration figure 1 2x10 pin connect diagram 2x10 pin description pin no. symbol level/logic description 1 pdbias dc current pin photo detector bias current 2 v eer ground receiver signal ground 3 v eer ground receiver signal ground 4 nc not connected 5 nc not connected 6 v eer ground receiver signal ground 7 v ccr power supply receiver power supply 8 sd lvttl or lvpecl output 1) 1) lvpecl output active high for v23818-k15-l17/l16. lvttl output active high for v23818-k15-l57/l56. receiver optical input level monitor 9 rd? lvpecl output receiver data out bar 10 rd+ lvpecl output receiver data out 11 v cct power supply transmitter power supply 12 v eet ground transmitter signal ground 13 tdis lvttl input transmitter disable 14 td+ lvpecl input transmitter data in 15 td? lvpecl input transmitter data in bar 16 v eet ground transmitter signal ground 17 bmon? dc voltage laser diode bias current monitor 18 bmon+ dc voltage laser diode bias current monitor 19 pmon? dc voltage laser diode optical power monitor 20 pmon+ dc voltage laser diode optical power monitor ms mounting studs hl housing leads tx rx hl hl hl hl 678910 11 12 13 14 15 12345 16 17 18 19 20 top view ms ms file: 1335
v23818-k15-lxx pin configuration data sheet 4 2003-03-21 figure 2 2x5 pin connect diagram v eer / v eet for 2x10 transceivers, connect pins 2, 3, 6, 12 and 16 to signal ground. for 2x5 transceivers, connect pins 1 and 7 to signal ground. 2x5 pin description pin no. symbol level/logic description 1 v eer ground receiver signal ground 2 v ccr power supply receiver power supply 3 sd lvttl or lvpecl output 1) 1) lvpecl output active high for v23818-k15-l37/l36/l35. lvttl output active high for v23818-k15-l47/l46/l45. receiver optical input level monitor 4 rd? lvpecl output receiver data out bar 5 rd+ lvpecl output receiver data out 6 v cct power supply transmitter power supply 7 v eet ground transmitter signal ground 8 tdis lvttl input transmitter disable 9 td+ lvpecl input transmitter data in 10 td? lvpecl input transmitter data in bar ms mounting studs hl housing leads tx rx hl hl hl hl 12345 6 7 8 9 10 top view ms ms file: 1331
v23818-k15-lxx pin configuration data sheet 5 2003-03-21 v ccr / v cct for 2x10 transceivers a 3.3 v dc power supply must be applied at pins 7 and 11. for 2x5 transceivers a 3.3 v dc power supply must be applied at pins 2 and 6. a recommended power supply filter network is given in the termination scheme. locate power supply filtering directly at the transceiver power supply pins. proper power supply filtering is essential for good emi performance. td+ / td? transmitter data lvpecl level inputs. for v23818-k15-l47/l46/l57/l56/l45 terminated and ac coupled internally. for v23818-k15-l37/l36/l17/l16/l35 use termination and coupling as shown in the termination scheme. rd? / rd+ receiver data lvpecl level outputs. for v23818-k15-l47/l46/l57/l56/l45 biased and ac coupled internally. for v23818-k15-l37/l36/l17/l16/l35 use termination and coupling as shown in the termination scheme. tdis a logical lvttl high input will disable the laser. to enable the laser, an lvttl low input must be applied. leave pin unconnected if feature not required. sd lvttl output for v23818-k15-l47/l46/l57/l56/l45. lvpecl output for v23818-k15-l37/l36/l17/l16/l35. a logical high output indicates normal optical input levels to the receiver. low optical input levels at the receiver result in a low output. signal detect can be used to determine a definite optical link failure; break in fiber, unplugging of a connector, faulty laser source. however it is not a detection of a bad link due to data-related errors. ms mounting studs are provided for transceiver mechanical attachment to the circuit board. they also provide an optional connection of the transceiver to the equipment chassis ground. the holes in the circuit board must be tied to chassis ground. hl housing leads are provided for additional signal grounding. the holes in the circuit board must be included and tied to signal ground.
v23818-k15-lxx pin configuration data sheet 6 2003-03-21 2x10 transceiver additional functionality pdbias connect pin 1 to v cc through a bias resistor, of a value not exceeding 2 k ? , as shown in figure 3 to monitor pin photo detector bias current. leave pin floating if not used. typical behaviour is shown in figure 4 and figure 5 using a 2 k ? load. figure 3 photo detector bias interface 2 k ? v cc pin 1 v bias file: 1307
v23818-k15-lxx pin configuration data sheet 7 2003-03-21 typical responsitivity of pin photo detector bias current monitor figure 4 linear response figure 5 logarithmic response 0 100 200 300 400 0 100 200 300 400 received optical power ( w) photo detector monitor current ( a) file: 1308 0 100 200 300 400 ? 30 ? 24 ? 18 ? 12 ? 60 received optical power (dbm) photo detector monitor current ( a) file: 1309
v23818-k15-lxx pin configuration data sheet 8 2003-03-21 bmon? / bmon+ the dc voltage measured across pins 17 and 18 is proportional to the laser bias current. use the equation: i bias = v bias /10 ? use this output to monitor laser performance and eol conditions. a schematic and typical behaviour are shown in figure 6 and figure 7 . i bias @ ambient 25c < 60 ma. leave pins floating if function is not required. figure 6 bias monitor ? transceiver internal figure 7 typical variations of bias monitor voltage over temperature 10 ? 3 k ? 3 k ? pin 18 pin 17 file: 1310 v cc v ee 0 0.04 0.08 0.12 0.16 0.2 0.24 0.28 0.32 0.36 010203040506070 temperature (c) bmon output voltage (v) file: 1312
v23818-k15-lxx pin configuration data sheet 9 2003-03-21 pmon? / pmon+ this output is derived from the tx monitor diode. output voltage is in the range of 1.2 0.2 v. source resistance r s = 100 k ? . note: this voltage level is not msa compliant.
v23818-k15-lxx description data sheet 10 2003-03-21 description the infineon single mode transceiver is based on and compliant to the physical medium depend (pmd) sublayer and baseband medium, type 1000-base-lx (long wavelength) as specified in ieee std 802.3 and fibre channel fc-pi rev. 13 100-sm-lc-l. the appropriate fiber optic cable is 9 m single mode fiber with lc connector. the infineon single mode transceiver is a single unit comprised of a transmitter, a receiver, and an lc receptacle. this design frees the customer from many alignment and pc board layout concerns. this transceiver supports the lc connectorization concept, which competes with utp/ cat 5 solutions. it is compatible with rj-45 style backpanels for fiber-to-the-desktop applications while providing the advantages of fiber optic technology. the receptacle accepts the new lc connector. the small form factor is specially developed for distances of up to 10 km. the module is designed for low cost lan and wan 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 and 1.25 gbit/s from a single power supply. the full differential data inputs and outputs are lvpecl compatible. functional description of sff transceiver this transceiver is designed to transmit serial data via single mode fiber. figure 8 functional diagram 2x10 pin rows file: 1357 laser driver laser monitor power control receiver sd pdbias td+ rd+ rd - bmon - bmon+ td - tx coupling unit rx coupling unit e/o o/e o/e tdis pmon - 3k 3k 3k 10 single mode fiber automatic shut-down pmon+ 200 3k
v23818-k15-lxx description data sheet 11 2003-03-21 figure 9 functional diagram 2x5 pin rows the receiver component converts the optical serial data into an electrical data (rd+ and rd?). the signal detect output (sd) shows whether an optical signal is present. the transmitter part converts electrical lvpecl compatible serial data (td+ and td?) into optical serial data. the module has an integrated shutdown function that switches the laser off in the event of an internal failure. reset is only possible if the power is turned off, and then on again. ( v cct switched below v th ). the transmitter contains a laser driver circui t that drives the modulation and bias current of the laser diode. the currents are controlled by a power control circuit to guarantee constant output 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 prevent the laser power from exceeding the operating limits. laser driver laser monitor power control sd td+ rd+ rd ? td ? tx coupling unit rx coupling unit e/o o/e o/e tdis file: 1351 single mode fiber automatic shut-down limiting amp tia
v23818-k15-lxx description data sheet 12 2003-03-21 figure 10 transceiver pitch regulatory compliance feature standard comments esd: electrostatic discharge to the electrical pins eia/jesd22-a114-b (mil-std 883d method 3015.7) class 1c 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 electromagnetic field en 61000-4-3 iec 61000-4-3 with a field strength of 3 v/m, 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 (13.97) .550 *) *) min. pitch between sff transceiver according to msa. dimensions in (mm) inches file: 1501
v23818-k15-lxx technical data data sheet 13 2003-03-21 technical data exceeding any one of these values may destroy the device immediately. absolute maximum ratings parameter symbol limit values unit min. max. package power dissipation 0.95 w supply voltage v cc ? v ee 4v data input levels v cc +0.5 v ee ?0.5 v differential data input voltage swing v id pk-pk 5 v storage ambient temperature ?40 85 c hand lead soldering temp/time 260/10 c/s wave soldering temp/time 260/10 c/s aqueous wash pressure < 110 psi
v23818-k15-lxx technical data data sheet 14 2003-03-21 the electro-optical characteristics described in the following tables are valid only for use under the recommended operating conditions. recommended operating conditions parameter symbol limit values unit min. typ. max. ambient temperature 1), 3) t amb ?40 85 c ambient temperature 2), 3) 070 power supply voltage v cc ? v ee 3.14 3.3 3.46 v transmitter data input high voltage dc/dc v ih ? v cc ?1165 ?880 mv differential data input voltage swing ac/ac v id pk-pk 500 3200 mv data input low voltage dc/dc v il ? v cc ?1810 ?1475 mv data input rise/fall time t i 120 ps supply current tx i cct 140 ma receiver input center wavelength rx 1260 1580 nm supply current rx i ccr 130 ma 1) for v23818-k15-l36/l46/l16/l56. 2) for v23818-k15-l37/l47/l17/l57/l35/l45. 3) ambient operating temperature requires a 2 ms ?1 airflow over the device.
v23818-k15-lxx technical data data sheet 15 2003-03-21 transmitter electro-optical characteristics parameter symbol limit values unit min. typ. max. output power (average) 1) p o ?9.5 ?3 dbm center wavelength c 1270 1355 nm spectral width (rms) 4nm extinction ratio (dynamic) er 9 db reset threshold for v cct 2) v th 2.7 v power on delay 2) t del 30 ms total tx jitter tj 53 130 ps t dis assert voltage lvttl v tdh 2v t dis deassert voltage lvttl v tdl 0.8 v t dis assert time 3) t ass 0.4 1 ms t dis deassert time 4) t das 0.06 10 s 1) into single mode fiber, 9 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) t dis assertion to laser shutdown. 4) t dis reassertion to laser startup. receiver electro-optical characteristics parameter symbol limit values unit min. typ. max. sensitivity (average power) 1) p in ?20 dbm saturation (average power) p sat ?3 dbm min. optical modulation amplitude 2) oma 15 w signal detect assert level 3) p sda ?20 dbm signal detect deassert level 2), 4) p sdd ?37 dbm signal detect hysteresis p sda ? p sdd 3db signal detect assert time 3) t ass 0.1 ms signal detect deassert time 4) t das 0.35 ms receiver 3 db cut off frequency 2) 1.5 ghz
v23818-k15-lxx technical data data sheet 16 2003-03-21 receiver 10 db cut off frequency 2) 3ghz output voltage 5) v oh ? v cc ?1110 ?650 mv output voltage 5) v ol ? v cc ?1800 ?1300 mv differential data output voltage swing 5) v od pk-pk 1000 2000 mv signal detect output high voltage lvpecl 6), 7) v sdh ? v ee v cc ? 1200 v cc ?820 mv signal detect output low voltage lvpecl 6), 7) v sdl ? v ee v cc ? 1900 v cc ? 1580 mv signal detect output high voltage lvttl 6), 8) v sdh 2.4 v signal detect output low voltage lvttl 6), 8) v sdl 0.5 v rx-monitor 9), 10) rx-mon 0.5 1 a/w 1) minimum average optical power at which the ber is less than 1x10 ?10 . measured with a 2 7 ? 1 nrz prbs. 2) fibre channel pi standard. 3) an increase in optical power above the specified level will cause the signal detect to switch from a low state to a high state (high active output). 4) a decrease in optical power below the specified level will cause the signal detect to switch from a high state to a low state. 5) load is 100 ? differential. 6) internal load is 510 ? to gnd, no external load necessary. signal detect is a high active output. high level means signal is present, low level means loss of signal. 7) for v23818-k15-l37/l36/l17/l16/l35. 8) for v23818-k15-l47/l46/l57/l56/l45. 9) monitor current needs to be sunk to v cc . 10) only available on 2x10 transceivers: v23818-k15-l17/l16/l57/l56. receiver electro-optical characteristics (cont?d) parameter symbol limit values unit min. typ. max.
v23818-k15-lxx eye safety data sheet 17 2003-03-21 eye safety this laser based single mode 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 operated within the absolute maximum ratings. attention: all adjustments have been made at the factory prior to shipment 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 modification 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)). figure 11 required labels figure 12 laser emission laser data wavelength 1300 nm total output power (as defined by iec: 7 mm aperture at 14 mm distance) < 2 mw total output power (as defined by fda: 7 mm aperture at 20 cm distance) < 180 w beam divergence 6 class 1 laser product iec complies with 21 cfr 1040.10 and 1040.11 fda file: 1401 file: 1334 top view tx rx 20 19 18 17 16 15 14 13 12 11 12345678910 indication of laser aperture and beam
v23818-k15-lxx emi-recommendations data sheet 18 2003-03-21 emi-recommendations to avoid electromagnetic radiation exceeding the required limits please take note of the following recommendations. when gigabit switching components are found on a pcb (multiplexers, 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 impedance 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 consider whether there is an internal termination inside an ic or a transceiver. in certain cases signal gnd is the most harmful source of radiation. 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 coupling 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 planned, 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 connections, 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 problems. a recommendation is to connect the housing leads to signal gnd. however, in certain applications it may improve emi performance by connecting them to chassis gnd. the cutout should be sized so that all contact springs make good contact with the face plate. 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.
v23818-k15-lxx recommended termination schemes data sheet 19 2003-03-21 recommended termination schemes 2x10 dc/dc transceiver figure 13 c6 c7 13 tdis pdbias bmon ? bmon+ c8 c9 c10 file: 1390 c1/2/3 c4/5/6/7 c8/9/10 l1/2 *) r1 r2/3 r4/5 place r1/4/5 close to serdes chip. place r2/3 close to infineon transceiver. *) the inductors may be replaced by appropriate ferrite beads. = 4.7 ... 10 f = 100 nf = design criterion is the resonance frequency only. the self resonant frequency of the capacitor must be in the vicinity of the nominal data rate. short traces are mandatory. = 1 ... 4.7 h = 100 ? (depending on serdes chip used, ensure proper 50 ? termination to v ee or 100 ? differential is provided. check for termination inside of serdes chip). = 150 ? = biasing (depends on serdes chip). laser driver signal detect limiting amplifier pre- amp serdat in ? serdat in + serdat out serdat out ? serializer/ deserializer rd ? ecl/ pecl driver receiver pll etc. sff transceiver 2,3,6 10 9 8 7 11 15 14 17 20 19 18 1 12,16 sd v eet td+ td ? v cct v ccr sd rd ? rd+ v eer v cc r4 r5 l1 l2 c2 c1 r2 r3 r1 c3 c4 c5 v cc serdes v cc 3.3 v rd+ 100 ? tdis + pmon+ pmon ?
v23818-k15-lxx recommended termination schemes data sheet 20 2003-03-21 2x10 ac/ac transceiver figure 14 file: 1391 c1/2/3 c4/5/6 l1/2 *) r1/2/3/4 r5/6 place r1/2/3/4/5/6 close to serdes chip. *) the inductors may be replaced by appropriate ferrite beads. = 4.7 ... 10 f = design criterion is the resonance frequency only. the self resonant frequency of the capacitor must be in the vicinity of the nominal data rate. short traces are mandatory. = 1 ... 4.7 h = depends on serdes chip used, ensure proper 50 ? termination to v ee or 100 ? differential is provided. check for termination inside of serdes chip. = biasing (depends on serdes chip). 13 tdis pdbias pmon+ pmon ? bmon ? bmon+ r3 r4 r1 r2 v cc serdes 100 ? laser driver signal detect limiting amplifier pre- amp serdat in ? serdat in + serdat out + serdat out ? serializer/ deserializer ecl/ pecl driver receiver pll etc. sff transceiver 2,3,6 10 9 8 7 11 15 14 12,16 17 19 20 18 1 sd v eet td+ td ? v cct v ccr sd rd ? rd+ v eet v cc r5 r6 l1 l2 c2 c1 c3 v cc 3.3 v tdis c4 c5 c6
v23818-k15-lxx recommended termination schemes data sheet 21 2003-03-21 2x5 dc/dc transceiver figure 15 file: 1392 c1/2/3 c4/5/6/7 c8/9/10 l1/2 *) r1 r2/3 r4/5 place r1/4/5 close to serdes chip. place r2/3 close to infineon transceiver. *) the inductors may be replaced by appropriate ferrite beads. = 4.7 ... 10 f = 100 nf = design criterion is the resonance frequency only. the self resonant frequency of the capacitor must be in the vicinity of the nominal data rate. short traces are mandatory. = 1 ... 4.7 h = 100 ? (depending on serdes chip used, ensure proper 50 ? termination to v ee or 100 ? differential is provided. check for termination inside of serdes chip). = 150 ? = biasing for outputs depending on serializer. c6 c7 8 tdis 100 ? laser driver signal detect limiting amplifier pre- amp serdat in ? serdat in + serdat out serdat out ? serializer/ deserializer rd ? ecl/ pecl driver receiver pll etc. sff transceiver 5 4 3 2 6 10 9 1 7 sd v eet td+ td ? v cct v ccr sd rd ? rd+ v eer v cc r4 r5 l1 l2 c2 c1 r2 r3 r1 c3 c4 c5 v cc serdes v cc 3.3 v rd+ tdis + c8 c9 c10
v23818-k15-lxx recommended termination schemes data sheet 22 2003-03-21 2x5 ac/ac transceiver figure 16 file: 1393 c1/2/3 c4/5/6 l1/2 *) r1/2/3/4 r5/6 place r1/2/3/4/5/6 close to serdes chip. *) the inductors may be replaced by appropriate ferrite beads. = 4.7 ... 10 f = design criterion is the resonance frequency only. the self resonant frequency of the capacitor must be in the vicinity of the nominal data rate. short traces are mandatory. = 1 ... 4.7 h = depends on serdes chip used, ensure proper 50 ? termination to v ee or 100 ? differential is provided. check for termination inside of serdes chip. = biasing (depends on serdes chip). 8 tdis laser driver signal detect limiting amplifier pre- amp serdat in ? serdat in + serdat out serdat out ? serializer/ deserializer rd ? ecl/ pecl driver receiver pll etc. sff transceiver 5 4 3 2 6 10 9 1 7 sd v eet td+ td ? v cct v ccr sd rd ? rd+ v eer v cc r5 r6 l1 l2 c2 c1 c3 v cc serdes v cc 3.3 v rd+ tdis + r3 r4 r1 r2 100 ? c4 c5 c6
v23818-k15-lxx package outlines data sheet 23 2003-03-21 package outlines figure 17 a) recommended bezel position drawing shown is 2x10 pinning with collar dimensions in mm [inches] file: 1213
edition 2003-03-21 published by infineon technologies ag, st.-martin-strasse 53, d-81541 mnchen, germany ? infineon technologies ag 2003. 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 your nearest infineon technologies office in germany or our infineon technologies representatives worldwide. warnings due to technical requirements components may contain dangerous substances. for information on the types in question please contact your nearest infineon technologies office. 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. for questions on technology, delivery and prices please contact the infineon technologies offices in germany or the infineon technologies companies and representatives worldwide: see our webpage at http://www.infineon.com. v23818-k15-lxx revision history: 2003-03-21 ds2 previous version: 2003-03-05 page subjects (major changes since last revision) 15 table "transmitter electro-optical characteristics" changed

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