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data sheet 1 2004-06-23 isfp? - intelligent sma ll form-factor pluggable 1.25 gigabit ethernet (1000 base-lx10) 2.125/1.0625 gbit/s fibre channel (200-sm-lc-l/100-sm-lc-l) single mode 1310 nm transceiver with lc? connector file: 1132 file: 1133 fiber optics isfp? is a trademark of infineon technologies. lc? is a trademark of lucent. V23848-M15-C56 features small form-factor pluggable (sfp) msa compatible transceiver 1) fully sff-8472 compatible incorporating intelligent ? digital diagnostic monitoring interface internal calibration implementation advanced release mechanism easy access, even in belly to belly applications wire handle release for simplicity color coded blue tab (single mode) pci height compatible excellent emi performance common ground concept rj-45 style lc? connector system single power supply (3.3 v) low power consumption small size for high channel density ul-94 v-0 certified esd class 1c per jesd22-a114-b (mil-std 883d method 3015.7) according to fcc (class b) and en 55022 for distances of up to 10 km fabry perot laser, pin photo diode laser safety according to class 1 fda and iec ac/ac coupling according to msa extended operating temperature range of ?40c to 85c sfp evaluation kit v23848-s5-v4 available upon request a press fit cage and cage plugs are available as accessory products from infineon (see sfp accessories ) 1) msa documentation can be found at www.infineon.com/fiberoptics under transceivers, sfp transceivers.
V23848-M15-C56 pin configuration data sheet 2 2004-06-23 pin configuration figure 1 isfp? transceiver electrical pad layout 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 tx fault 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 through top of transceiver) file: 1306
V23848-M15-C56 pin configuration data sheet 3 2004-06-23 pin description pin no. name logic level function 1 v ee t n/a transmitter ground 1) 2 tx fault lvttl transmitter fault indication 2) 8) 3 tx disable lvttl transmitter disable 3) 4 mod-def(2) lvttl module definition 2 4) 8) 5 mod-def(1) lvttl module definition 1 5) 8) 6 mod-def(0) n/a module definition 0 6) 8) 7 rate select n/a not connected 8 los lvttl loss of signal 7) 8) 9 v ee r n/a receiver ground 1) 10 v ee r n/a receiver ground 1) 11 v ee r n/a receiver ground 1) 12 rd? lvpecl inv. received data out 9) 13 rd+ lvpecl received data out 9) 14 v ee r n/a receiver ground 1) 15 v cc r n/a receiver power 16 v cc t n/a transmitter power 17 v ee t n/a transmitter ground 1) 18 td+ lvpecl transmit data in 10) 19 td? lvpecl inv. transmit data in 10) 20 v ee t n/a transmitter ground 1) 1) common transmitter and receiver ground within the module. 2) a high signal indicates a laser fault of some kind and that laser is switched off. 3) a low signal switches the transmitter on. a high signal or when not connected switches the transmitter off. 4) mod-def(2) is the data line of two wire serial interface for serial id. 5) mod-def(1) is the clock line of two wire serial interface for serial id. 6) mod-def(0) is grounded by the module to indicate that the module is present. 7) a low signal indicates normal operation, light is present at receiver input. a high signal indicates the received optical power is below the worst case receiver sensitivity. 8) should be pulled up on host board to v cc by 4.7 - 10 k ? . 9) ac coupled inside the transceiver. must be terminated with 100 ? differential at the user serdes. 10) ac coupled and 100 ? differential termination inside the transceiver.
V23848-M15-C56 description data sheet 4 2004-06-23 description the infineon fibre channel / gigabit ethernet single mode transceiver ? part of infineon isfp? family ? is compatible to the physical medium depend (pmd) sublayer and baseband medium, type 1000 base-lx10 (long wavelength) as specified in ieee std 802.3 and fibre channel fc-pi-2 (rev. 5.0) 100-sm-lc-l for 1.0625 gbit/s, and 200-sm-lc-l for 2.125 gbit/s. the appropriate fiber optic cable is 9 m single mode fiber with lc? connector. link length as defined by ieee and fibre channel standards fiber type reach unit min. 1) 1) minimum reach as defined by ieee and fibre channel standards. a 0 m link length (loop-back connector) is supported. typ. max. 2) 2) maximum reach as defined by ieee and fibre channel standards. longer reach possible depending upon link implementation. at 1.0625 gbit/s 9 m, smf 2 10,000 meters 50 m, 500 mhz*km 2 550 62.5 m, 500 mhz*km 2 550 at 1.25 gbit/s 9 m, smf 2 10,000 meters 50 m, 400/500 mhz*km 2 550 62.5 m, 500 mhz*km 2 550 at 2.125 gbit/s 9 m, smf 2 10,000 meters 50 m, 500 mhz*km 2 300 62.5 m, 500 mhz*km 2 150
V23848-M15-C56 description data sheet 5 2004-06-23 the infineon isfp? single mode transceiver is a single unit comprised of a transmitter, a receiver, and an lc? receptacle. this transceiver supports the lc? connectorization concept. it is compatible with rj-45 style backpanels for high end datacom and telecom applications while providing the advantages of fiber optic technology. the module is designed for low cost san, lan, fibre channel and gigabit ethernet 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 2.125, 1.0625 and 1.25 gbit/s from a single power supply (+3.3 v). the 100 ? differential data inputs and outputs are lvpecl and cml compatible. functional description of isfp? transceiver this transceiver is designed to transmit serial data via single mode cable. figure 2 functional diagram laser driver power control limiting amp tia o/e o/e laser e/o rx coupling unit td + td ? tx disable tx fault rd ? los rd + tx coupling unit single mode fiber monitor automatic shut-down eeprom digital diagnostic monitoring interface alarm and warning flags mod-def(2) mod-def(1) file: 1354
V23848-M15-C56 description data sheet 6 2004-06-23 the receiver component converts the optical serial data into cml compatible electrical data (rd+ and rd?). the loss of signal (los) shows whether an optical signal is present. the transmitter converts cml compatible electrical serial data (td+ and td?) into optical serial data. data lines are differentially 100 ? terminated. 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. 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 whenever 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. an enhanced digital diagnostic monitoring interface (intelligent) has been incorporated into the infineon small form-factor pluggable (sfp) transceiver. this allows real time access to transceiver operating parameters, based on the sff-8472. this transceiver features internal cali bration. measurements are calibrated over operating temperature and voltage and must be interpreted as defined in sff-8472. the transceiver generates this diagnostic data by digitization of internal analog signals monitored by a new diagnostic integrated circuit (ic). this diagnostic ic has inbuilt sensors to include alarm and warning thresholds. these threshold values are set during device manufacture and therefore allow the user to determine when a particular value is outside of its operating range. alarm and warning flags are given. alarm flags indicate conditions likely to be associated with an inoperational link and cause for immediate action. warning flags indicate conditions outside the normally guaranteed bounds but not necessarily causes of immediate link failures. these enhanced features are in addition to the existing sfp features provided by the manufacturer i.e. serial number and other vendor specific data. the serial id interface defines a 256 byte memory map in eeprom, accessible over a 2 wire, serial interface at the 8 bit address 1010000x (a0h). the digital diagnostic monitoring interface makes use of the 8 bit address 1010001x (a2h), so the originally defined serial id memory map remains unchanged and is therefore backward compatible.
V23848-M15-C56 description data sheet 7 2004-06-23 digital diagnostic monitoring parameters parameter accuracy sff-8472 accuracy actual 1) 1) typical values, 25c, 3.3 v. sff-8472 accuracy is maintained over all operating and measurement conditions. tx optical power 3 db 2 db rx optical power 3 db 2 db bias current 10% 10% power supply voltage 3% 3% transceiver temperature 3c 3c
V23848-M15-C56 description data sheet 8 2004-06-23 regulatory compliance (emi) 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 2kv 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 10 v/m, noise frequency ranges from 10 mhz to 2 ghz. no effect on transceiver performance between the specification limits. emission: radiated field strength fcc 47 cfr part 15, class b cispr 22 en 55022 class b noise frequency range: 30 mhz to 18 ghz this device complies with part 15 of the fcc rules 1) . operation is subject to the following two conditions: 1 this device may not cause harmful interference. 2 this device must accept any interference received, including interference that may cause undesired operation. 1) any kind of modification not expressly approved by infineon technologies may affect the regulatory compliance of the concerned product. as a consequence thereof this could void the user?s authority to operate the equipment. tested to comply with fcc standards for home or office use isfp? V23848-M15-C56 file: 1410
V23848-M15-C56 technical data data sheet 9 2004-06-23 technical data exceeding any one of these values may permanently destroy the device. absolute maximum ratings parameter symbol limit values unit min. max. data input voltage v id max v cc +0.5 v differential data input voltage swing v id pk-pk 5 v storage ambient temperature t s ?40 85 c operating case temperature 1) 1) operating case temperature measured at transceiver reference point (in cage through 2nd centre hole from rear, see figure 9 ). t c ?40 85 c storage relative humidity rh s 595% operating relative humidity rh o 585% supply voltage v cc max 4v data output current i data 50 ma receiver optical input power rx p max 3dbm
V23848-M15-C56 technical data data sheet 10 2004-06-23 electrical characteristics ( v cc = 2.97 v to 3.63 v, t c = ?40c to 85c) parameter symbol values unit min. typ. max. common supply voltage v cc ? v ee 2.97 3.3 3.63 v in-rush current 1) i ir max 30 ma power dissipation p 1.1 w transmitter differential data input voltage swing 2) v id pk-pk 500 3200 mv tx disable voltage tx dis 2 v cc v tx enable voltage tx en v ee 0.8 v tx fault high voltage tx fh 2.4 v cc v tx fault low voltage tx fl v ee 0.5 v supply current 3) i tx 80 150 ma receiver differential data output voltage swing 4) v od pk-pk 500 600 1000 mv los active los a 2.4 v cc v los normal los n v ee 0.5 v receiver 3 db cut-off frequency 5) 1.5 ghz receiver 10 db cut-off frequency 5) 3ghz rise time 6) t r-rx 190 ps fall time 6) t f-rx 190 ps contributed deterministic jitter 7) dj rx 52 ps contributed total jitter 8) tj rx 122 ps jitter (pk-pk) 9) j rx 50 ps power supply noise rejection 10) psnr 100 mv pp supply current 3) 11) i rx 100 150 ma 1) measured with msa recommended supply filter network ( figure 7 ). maximum value above that of the steady state value. 2) internally ac coupled. typical 100 ? differential input impedance. 3) msa defines maximum current at 300 ma.
V23848-M15-C56 technical data data sheet 11 2004-06-23 4) internally ac coupled. load 50 ? to gnd or 100 ? differential. for dynamic measurement a tolerance of 50 mv should be added. 5) fibre channel pi standard. 6) measured values are 20% - 80%. 7) deterministic jitter is that jitter measured by a bathtub scan, using a 2 7 ?1 nrz prbs, and extrapolating to 1ber. 8) total jitter is that jitter measured by a bathtub scan, using a 2 7 ?1 nrz prbs, and extrapolating to 1x10 ?12 ber. 9) jitter (pk-pk) is measured using a 2 7 ?1 nrz prbs and a digital communications analyzer. 10) measured using a 20 hz to 1 mhz sinusoidal modulation with the msa recommended power supply filter network ( figure 7 ) in place. a change in sensitivity of less than 1 db can be typically expected. 11) supply current excluding rx output load.
V23848-M15-C56 technical data data sheet 12 2004-06-23 optical characteristics ( v cc = 2.97 v to 3.63 v, t c = ?40c to 85c) parameter symbol values unit min. typ. max. transmitter optical modulation amplitude 1) oma 180 w launched power (average) 2) p o ?9.5 ?3 dbm extinction ratio (dynamic) 3) er 9 db center wavelength 1) c 1270 1355 nm spectral width (rms) 1) i 2.5 nm relative intensity noise rin ?120 db/hz tx disable laser output power p o-txdis ?50 dbm deterministic jitter 4) dj tx 56 ps total jitter 5) tj tx 120 ps jitter (pk-pk) 6) j tx 30 ps rise time 7) t r-tx 160 ps fall time 7) t f-tx 160 ps receiver 8) min. optical modulation amplitude 9) oma 15 w average received power p r ?3 dbm sensitivity (average power) 10) @ 2.125 gbit/s @ 1.25 gbit/s @ 1.0625 gbit/s p in ?20 ?20 ?20 dbm stressed receiver sensitivity @ 1.25 gbit/s 11) s pin ?14.4 dbm los assert level 12) p losa ?30 dbm los deassert level 12) p losd ?22 dbm los hysteresis 12) p losa ? p losd 0.5 1 6 db input center wavelength c 1260 1580 nm optical return loss orl 12 db 1) fc-pi rev. 13 defines triple trade off curves. 2) into single mode fiber, 9 m diameter. 3) for gigabit ethernet only.
V23848-M15-C56 technical data data sheet 13 2004-06-23 figure 3 4) deterministic jitter is that jitter measured by a bathtub scan, using a 2 7 ?1 nrz prbs, and extrapolating to 1ber. 5) total jitter is that jitter measured by a bathtub scan, using a 2 7 ?1 nrz prbs, and extrapolating to 1x10 ?12 ber. 6) jitter (pk-pk) is measured using a 2 7 ?1 nrz prbs and a digital communications analyzer. 7) values are 20% - 80%. measured at nominal data rate, unfiltered, using an o/e plug-in with a bandwidth of 20 ghz or higher. complies with fc 1x, fc 2x and gigabit ethernet eye mask when filtered. 8) receiver characteristics are measured with a worst case reference laser. 9) fibre channel pi standard. 10) average optical power at which the ber is 1x10 ?12 . measured with a 2 7 ?1 nrz prbs and er = 9 db. 11) measured with a transmit signal having a 9 db extinction ratio. 12) see figure 3 . received optical power level [dbm] los assert (minimum) hysteresis (minimum) los / hysteresis (typical) los deassert (maximum) los level 0 1 file: 1522 los persistence los assertion range los deassertion range
V23848-M15-C56 technical data data sheet 14 2004-06-23 timing of control and status i/o parameter symbol values unit condition min. max. tx disable assert time t_off 10 s time from rising edge of tx disable to when the optical output 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 nominal. time to initialize, including reset of tx fault t_init 300 ms 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 s time tx disable must be held high to reset tx fault. los assert time t_loss_on 100 s time from los state to rx los assert. los deassert time t_loss_off 100 s time from non-los state to rx los deassert.
V23848-M15-C56 technical data data sheet 15 2004-06-23 i/o timing of soft control and status functions parameter symbol max. value unit condition tx disable assert time t_off 100 ms time from tx disable bit set 1) until optical output falls below 10% of nominal tx disable deassert time t_on 100 ms time from tx disable bit cleared until optical output rises above 90% of nominal time to initialize, including reset of tx fault t_init 300 ms time from power on or negation of tx fault using tx disable until transmitter output is stable 2) tx fault assert time t_fault 100 ms time from fault to tx fault bit set los assert time t_loss_on 100 ms time from los state to rx los bit set los deassert time t_loss_off 100 ms time from non-los state to rx los bit cleared rate select change time 3) t_rate_sel 100 ms time from change of state of rate select bit 1) until receiver bandwidth is in conformance with appropriate specification serial id clock rate 4) f_serial_clock 400 khz n/a analog parameter data ready t_data 1000 ms from power on to data ready, bit 0 of byte 110 set serial bus hardware ready t_serial 300 ms time from power on until module is ready for data transmission 1) measured from falling clock edge after stop bit of write transaction. 2) see gigabit interface converter (gbic). sff-0053, rev. 5.5, september 27, 2000. 3) not implemented. 4) the maximum clock rate of the serial interface is defined by the i 2 c bus interface standard.
V23848-M15-C56 eye safety data sheet 16 2004-06-23 eye safety this laser based single mode transceiver is a class 1 product. it complies with iec 60825-1/a2: 2001 and fda performance standards for laser products (21 cfr 1040.10 and 1040.11) except for deviations pursuant to laser notice 50, dated july 26, 2001. class 1 laser product to meet laser safety requirements the transceiver shall be operated within the absolute maximum ratings. note: 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. 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 4 required labels figure 5 laser emission laser emission data wavelength 1310 nm maximum total output power (as defined by iec: 7 mm aperture at 14 mm distance) 15.6 mw / 11.9 dbm beam divergence (full angle) / na (half angle) 11 / 0.1 rad class 1 laser product iec complies with 21 cfr 1040.10 and 1040.11 fda file: 1401 tx rx laser emission file: 1333 top view
V23848-M15-C56 application notes data sheet 17 2004-06-23 application notes emi recommendations to avoid electromagnetic radiation exceeding the required limits set by the standards, please take note of the following recommendations. when gigabit switching components are found on a pcb (e.g. multiplexer, serializer-deserializer, clock data recovery, etc.), any opening of the chassis may leak radiation; this may also occur at chassis slots other than that of the device itself. thus every mechanical opening or aperture should be as small as feasible and its length carefully considered. on the board itself, every data connection should be an impedance matched line (e.g. strip line or coplanar strip line). data (d) and data-not (dn) should be routed symmetrically. vias should be avoided. where internal termination inside an ic or a transceiver is not present, a line terminating resistor must be provided. the decision of how best to establish a ground depends on many boundary conditions. this decision may turn out to be critical for achieving lowest emi performance. at rf frequencies the ground plane will always carry some amount of rf noise. thus the ground and v cc planes are often major radiators inside an enclosure. as a general rule, for small systems such as pci cards placed inside poorly shielded enclosures, the common ground scheme has often proven to be most effective in reducing rf emissions. in a common ground scheme, the pci card becomes more equipotential with the chassis ground. as a result, the overall radiation will decrease. in a common ground scheme, it is strongly recommended to provide a proper contact between signal ground and chassis ground at every location where possible. this concept is designed to avoid hotspots which are places of highest radiation, caused when only a few connections between chassis and signal grounds exist. compensation currents would concentrate at these connections, causing radiation. however, as signal ground may be the main cause for parasitic radiation, connecting chassis ground and signal ground at the wrong place may result in enhanced rf emissions. for example, connecting chassis ground and signal ground at a front panel/bezel/chassis by means of a fiber optic transceiver/cage may result in a large amount of radiation especially where combined with an inadequate number of grounding points between signal ground and chassis ground. thus the transceiver becomes a single contact point increasing radiation emissions. even a capacitive coupling between signal ground and chassis ground may be harmful if it is too close to an opening or an aperture. for a number of systems, enforcing a strict separation of signal ground from chassis ground may be advantageous, providing the housing does not present any slots or other discontinuities. this separate ground concept seems to be more suitable in large systems where appropriate shielding measures have also been implemented. the return path of rf current must also be considered. thus a split ground plane between tx and rx paths may result in severe emi problems.
V23848-M15-C56 application notes data sheet 18 2004-06-23 the bezel opening for a transceiver should be sized so that all contact springs of the transceiver cage make good electrical contact with the face plate. please consider that the pcb may behave like a dielectric waveguide. with a dielectric constant of 4, the wavelength of the harmonics inside the pcb will be half of that in free space. thus even the smallest pcbs may have unexpected resonances. large systems can have many openings in the front panel for sfp transceivers. in typical applications, not all of these ports will hold transceivers; some may be intentionally left empty. these empty slots may emit significant amounts of radiation. thus it is recommended that empty ports be plugged with an emi plug as shown in figure 6 . infineon offers an emi/dust plug, p/n v23818-s5-b1. sfp accessories figure 6 cage: infineon technologies part number: v23838-s5-n1/v23838-s5-n1-bb cage emi/dust plug: infineon technologies part number: v23818-s5-b1 host board connector: tyco electronics part number: 1367073-1 cage dust plug: infineon technologies part number: v23818-s5-b2 file: 1521 cage isfp? host board connector host board dust plug cage emi/dust plug
V23848-M15-C56 application notes data sheet 19 2004-06-23 eeprom serial id memory contents (a0h) addr. hex ascii name/description addr. hex ascii name/description 0 03 identifier 32 47 g vendor name 104 extended identifier 33 6d m 207 connector 34 62 b 300 transceiver optical compatibility 35 48 h 400 3600 reserved 500 3700 vendor oui 602 3803 712 3919 8 00 40 56 v vendor part number 901 41322 10 05 42 33 3 11 01 encoding 43 38 8 12 15 br, nominal 44 34 4 13 00 reserved 45 38 8 14 0a length (9 m) - km 46 2d - 15 64 length (9 m) 47 4d m 16 1e length (50 m) 48 31 1 17 0f length (62.5 m) 49 35 5 18 00 length (copper) 50 2d - 19 00 reserved 51 43 c 20 49 i vendor name 52 35 5 21 6e n 53 36 6 22 66 f 54 20 23 69 i 55 20 24 6e n 56 41 a vendor revision, product status dependent 25 65 e 57 34 4 26 6f o 58 41 a 27 6e n 59 39 9 28 20 60 05 wavelength 29 46 f 61 1e 30 4f o 62 00 reserved 31 20 63 ca check sum of bytes 0 - 62
V23848-M15-C56 application notes data sheet 20 2004-06-23 64 00 transceiver signal options 96 20 vendor specific eeprom 65 1a 97 20 66 00 br, maximum 98 20 67 32 br, minimum 99 20 68 vendor serial number 100 20 69 101 20 70 102 20 71 103 20 72 104 20 73 105 20 74 106 20 75 107 20 76 20 108 20 77 20 109 20 78 20 110 20 79 20 111 20 80 20 112 20 81 20 113 20 82 20 114 20 83 20 115 20 84 vendor manufacturing date code 116 20 85 117 20 86 118 20 87 119 20 88 120 20 89 121 20 90 20 122 20 91 20 123 20 92 68 diagnostic monitoring type 124 20 93 b0 enhanced options 125 20 94 01 sff-8472 compliance 126 20 95 low order 8 bits of the sum of the contents of all the bytes from byte 64 to byte 94, inclusive 127 20 128 - 255 00 vendor specific. reserved for future use eeprom serial id memory contents (a0h) (cont?d) addr. hex ascii name/description addr. hex ascii name/description
V23848-M15-C56 application notes data sheet 21 2004-06-23 digital diagnostic monitoring interface ? intelligent alarm and warning thresholds (2-wire address a2h) address # bytes name description value 00 - 01 2 temp high alarm msb at low address 95c 1) 1) a delta exists between actual transceiver temperature and value shown as measurement is taken internal to an ic located on the underside of the isfp? pcb. 02 - 03 2 temp low alarm msb at low address ?40c 1) 04 - 05 2 temp high warning msb at low address 90c 1) 06 - 07 2 temp low warning msb at low address ?35c 1) 08 - 09 2 voltage high alarm msb at low address 3.7 v 2) 2) transceiver voltage measured after input filter with typical 0.1 v voltage drop. 10 - 11 2 voltage low alarm msb at low address 2.85 v 2) 12 - 13 2 voltage high warning msb at low address 3.63 v 2) 14 - 15 2 voltage low warning msb at low address 2.97 v 2) 16 - 17 2 bias high alarm msb at low address 70 ma 18 - 19 2 bias low alarm msb at low address 1 ma 20 - 21 2 bias high warning msb at low address 50 ma 22 - 23 2 bias low warning msb at low address 2 ma 24 - 25 2 tx power high alarm msb at low address ?3 dbm 26 - 27 2 tx power low alarm msb at low address ?10 dbm 28 - 29 2 tx power high warning msb at low address ?3.5 dbm 30 - 31 2 tx power low warning msb at low address ?9.5 dbm 32 - 33 2 rx power high alarm msb at low address ?2 dbm 34 - 35 2 rx power low alarm msb at low address ?21 dbm 36 - 37 2 rx power high warning msb at low address ?3 dbm 38 - 39 2 rx power low warning msb at low address ?20 dbm 40 - 55 16 reserved reserved for future monitored quantities
V23848-M15-C56 application notes data sheet 22 2004-06-23 calibration constants for external calibration option (2-wire address a2h) address # bytes name description value 56 - 59 4 rx_pwr (4) single precision floating point calibration data, rx optical power. 0 60 - 63 4 rx_pwr (3) 0 64 - 67 4 rx_pwr (2) 0 68 - 71 4 rx_pwr (1) 1 72 - 75 4 rx_pwr (0) 0 76 - 77 2 tx_i (slope) fixed decimal (unsigned) calibration data, laser bias current. 1 78 - 79 2 tx_i (offset) fixed decimal (signed two?s complement) calibration data, laser bias current. 0 80 - 81 2 tx_pwr (slope) fixed decimal (unsigned) calibration data, transmitter coupled output power. 1 82 - 83 2 tx_pwr (offset) fixed decimal (signed two?s complement) calibration data, transmitter coupled output power. 0 84 - 85 2 t (slope) fixed decimal (unsigned) calibration data, internal module temperature. 1 86 - 87 2 t (offset) fixed decimal (signed two?s complement) calibration data, internal module temperature. 0 88 - 89 2 v (slope) fixed decimal (unsigned) calibration data, internal module supply voltage. 1 90 - 91 2 v (offset) fixed decimal (signed two?s complement) calibration data, internal module supply voltage. 0 92 - 94 3 reserved reserved 95 1 check sum byte 95 contains the low order 8 bits of the sum of bytes 0 - 94.
V23848-M15-C56 application notes data sheet 23 2004-06-23 a/d values and status bits (2-wire address a2h) byte bit name description converted analog values. calibrated 16 bit data. 96 all temperature msb internally measured module temperature 1) 97 all temperature lsb 98 all v cc msb internally measured supply voltage in transceiver 99 all v cc lsb 100 all tx bias msb internally measured tx bias current 101 all tx bias lsb 102 all tx power msb measured tx output power 103 all tx power lsb 104 all rx power msb measured rx input power 105 all rx power lsb 106 all reserved msb reserved for 1st future definition of digitized analog input 107 all reserved lsb reserved for 1st future definition of digitized analog input 108 all reserved msb reserved for 2nd future definition of digitized analog input 109 all reserved lsb reserved for 2nd future definition of digitized analog input optional status/control bits 110 7 tx disable state 2) digital state of the tx disable input pin 110 6 soft tx disable 2) read/write bit that allows software disable of laser. writing 1 disables laser 110 5 reserved 110 4 rx rate select state 2) digital state of the sfp rx rate select input pin 110 3 soft rx rate select 2) read/write bit that allows software rx rate select. writing 1 selects full bandwidth operation. not implemented.
V23848-M15-C56 application notes data sheet 24 2004-06-23 110 2 tx fault digital state of the tx fault output pin 110 1 los digital state of the los output pin 110 0 data_ready_bar indicates transceiver has achieved power up and data is ready 111 7 - 0 reserved reserved 1) temperature measurement is performed on an ic located on the underside of the isfp? pcb. 2) not implemented. a/d values and status bits (2-wire address a2h) (cont?d) byte bit name description
V23848-M15-C56 application notes data sheet 25 2004-06-23 alarm and warning flags (2-wire address a2h) byte bit name description 112 7 temp high alarm set when internal temperature exceeds high alarm level 112 6 temp low alarm set when internal temperature is below low alarm level 112 5 v cc high alarm set when internal supply voltage exceeds high alarm level 112 4 v cc low alarm set when internal supply voltage is below low alarm level 112 3 tx bias high alarm set when tx bias current exceeds high alarm level 112 2 tx bias low alarm set when tx bias current is below low alarm level 112 1 tx power high alarm set when tx output power exceeds high alarm level 112 0 tx power low alarm set when tx output power is below low alarm level 113 7 rx power high alarm set when received power exceeds high alarm level 113 6 rx power low alarm set when received power is below low alarm level 113 5 reserved alarm 113 4 reserved alarm 113 3 reserved alarm 113 2 reserved alarm 113 1 reserved alarm 113 0 reserved alarm 114 all reserved 115 all reserved 116 7 temp high warning set when internal temperature exceeds high warning level 116 6 temp low warning set when internal temperature is below low warning level 116 5 v cc high warning set when internal supply voltage exceeds high warning level
V23848-M15-C56 application notes data sheet 26 2004-06-23 116 4 v cc low warning set when internal supply voltage is below low warning level 116 3 tx bias high warning set when tx bias current exceeds high warning level 116 2 tx bias low warning set when tx bias current is below low warning level 116 1 tx power high warning set when tx output power exceeds high warning level 116 0 tx power low warning set when tx output power is below low warning level 117 7 rx power high warning set when received power exceeds high warning level 117 6 rx power low warning set when received power is below low warning level 117 5 reserved warning 117 4 reserved warning 117 3 reserved warning 117 2 reserved warning 117 1 reserved warning 117 0 reserved warning 118 all reserved 119 all reserved vendor specific memory addresses (2-wire address a2h) address # bytes name description 120 -127 8 vendor specific vendor specific user eeprom (2-wire address a2h) address # bytes name description 128 - 247 120 user eeprom user writable eeprom 248 - 255 8 vendor specific vendor specific control functions alarm and warning flags (2-wire address a2h) (cont?d) byte bit name description
V23848-M15-C56 application notes data sheet 27 2004-06-23 single mode 1310 nm isfp? transceiver, ac/ac ttl figure 7 example isfp? host board schematic and recommended host board supply filtering network pld / pal 1) design criterion of the capacitor used is the resonant frequency and its value must be in the order of the nominal data rate. use of single layer capacitors recommended. short trace lengths are mandatory. 2) not implemented. asic ic tx disable protocol v cc protocol v cc 3.3 v 16 19 18 13 12 8 7 65 4 3 2 1/17/20 9/10/11/14 v cc t 15 v cc r 3.3 v 0.1 f 0.1 f 0.1 f 0.1 f 10 f mod-def(0) file: 1319 mod-def(1) mod-def(2) 4.7 to 10 k ? 4.7 to 10 k ? 4.7 to 10 k ? pre-amp./ post amp. diagnostic ic / eeprom laser driver 1 h 1 h tx fault protocol ic los rate select 2) rate select 2) tx disable tx fault td? td+ rd+ rd? v ee t v ee r los infineon isfp? transceiver host board 0.1 f 0.1 f 10 f 0.1 f xx 1) xx 1) 100 ? 4.7 to 10 k ? 4.7 to 10 k ? 4.7 to 10 k ? 100 ?
V23848-M15-C56 package outlines data sheet 28 2004-06-23 package outlines figure 8 figure 9 dimensions in mm file: 1215 47.5 56.5 10.3 11.6 1.3 8.5 13.7 13.4 13.7 6.25 dimensions in mm file: 1224 transceiver temperature reference point 29.80
edition 2004-06-23 published by infineon technologies ag, st.-martin-strasse 53, 81669 mnchen, germany ? infineon technologies ag 2004. all rights reserved. attention please! the information herein is given to describe certain components and shall not be considered as a guarantee of 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. information for further information on technology, delivery terms and conditions and prices please contact your nearest infineon technologies office ( www.infineon.com ). 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. V23848-M15-C56 revision history: 2004-06-23 ds6 previous version: 2003-10-23 page subjects (major changes since last revision) 1 title changed 4 description changed 4 , 7 , 10 , 12 , 19 , 21 , 23 tables changed 13 figure 3 added 27 figure 7 host board schematic changed

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