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delta electronics, inc. 1 aug., 2006 rev. 6a www.deltaww.com rohs compliant single mode sfp transceiver for gbe and fiber channel features z compliant with sfp transceiver sff-8472 msa specification with internal calibration z compliant with specifications for ieee 802.3z/gigabit ethernet z single + 3.3v power supply and ttl logic interface z eeprom with serial id functionality z laser class 1 product which comply with the requirements of iec 60825-1 and iec 60825-2 z duplex lc connector interface description the lcp-1250 series are hot pluggable 3.3v small-form-factor transceiver modules designed expressly for high-speed communication applications that require rates up to 1.25gb/s. the transceiver is data rate transparent, which means it can support gbe (1.25gb/s) as well as 1x fiber channel (1.062gb/s) operations the lcp-1250 series are designed to be compliant with sfp multi-source agreement (msa). digital diagnostic monitoring functions (temperature, v cc , tx optical power, tx laser bias current, and rx received optical power) compliant with sff-8472 are also available. see order information for details. the post-amplifier of the lcp-1250 series also includes a loss of signal (los) circuit that provides a ttl logic-high output when the received optical level is below a preset los assert threshold. applications z gigabit ethernet z switch to switch interface z switched backplane applications z file server interface performance z lcp-1250b4mxx: 1310nm dfb laser, 19db link budget (40km) z LCP-1250D4mxx: 1550nm dfb laser, 17db link budget (40km) z LCP-1250D4wxx: 1550nm dfb laser, 21db link budget (70km) z LCP-1250D4rxx: 1550nm dfb laser, 24db link budget (80km) z LCP-1250D4vxx: 1550nm dfb laser, 30db link budget (100km)
delta electronics, inc. 2 aug., 2006 rev. 6a www.deltaww.com absolute maximum ratings parameter symbol min. typ. max. unit note storage temperature ts -40 85 oc supply voltage v cc 0 5 v recommended operating conditions parameter symbol min. typ. max. unit note case operating temperature t c -5 70 oc 1 supply voltage v cc 3.135 3.465 v note 1: see order information electrical characteristics (v cc =3.3v 5%) parameter symbol min. typ. max. unit note total supply current i cct 300 ma transmitter transmitter differential input voltage v dt 0.5 2.4 v 1 transmitter disable input-high v dish 2 v cc +0.3 v transmitter disable input-low v disl 0 0.8 v transmitter fault pull up resistor r tx_fault 4.7 10 k ? 2 transmitter fault output-high v txfh 2 v cc +0.3 v 2 transmitter fault output-low v txfl 0 0.8 v 2 receiver receiver differential output voltage v dr 0.35 2 v 3 receiver los load r rxlos 4.7 10 k ? 2 los output voltage-high v losh 2 v cc +0.3 v 2 los output voltage-low v losl 0 0.8 v 2 output data rise/fall time t r / t f 220 psec 4 notes: 1. internally ac coupled and terminated to 100ohm differential load. 2. pull up to v cc on host board 3. internally ac coupled, but requires a 100ohm differential termination at or internal to serializer/ deserializer. 4. these are 20%~80% values
delta electronics, inc. 3 aug., 2006 rev. 6a www.deltaww.com optical characteristics (v cc =3.3v 5%, data rate=1250mb/sec, prbs=2 7 -1 nrz) parameter symbol min. typ. max. unit note transmitter output optical power (avg.) lcp-1250b4mxx LCP-1250D4mxx LCP-1250D4wxx LCP-1250D4rxx LCP-1250D4vxx p o -4 -4 -3 0 0 1 1 2 5 5 dbm optical extinction ratio er 9 db center wavelength lcp-1250b4 series LCP-1250D4 series c 1274 1530 1310 1550 1355 1570 nm spectral width lcp-1250b4mxx (-20db) LCP-1250D4 series (-20db) 1 1 nm side-mode suppression ratio lcp-1250b4mxx LCP-1250D4 series smsr 30 30 db optical rise/ fall time t r /t f 260 psec 1 relative intensity noise rin -120 db/hz output eye compliant with ieee 802.3z receiver sensitivity (avg.) lcp-1250b4mxx LCP-1250D4mxx LCP-1250D4wxx LCP-1250D4rxx LCP-1250D4vxx p in -23 -21 -24 -24 -30 dbm 2 input optical wavelength 1270 1570 nm los-deasserted (avg.) lcp-1250b4mxx LCP-1250D4mxx LCP-1250D4wxx LCP-1250D4rxx LCP-1250D4vxx p a -23 -21 -24 -24 -30 dbm los-asserted (avg.) p d -40 dbm los-hysteresis p a -p d 0.5 db overload lcp-1250b4mxx LCP-1250D4 series LCP-1250D4vxx p o -1 -1 -9 dbm notes: 1. these are unfiltered 20%~80% values 2. the sensitivity is provided at a ber of 110 -12 or better with an input signal consisting of 1250mb/s, 2 7 -1 prbs and er=9db.
delta electronics, inc. 4 aug., 2006 rev. 6a www.deltaww.com mask of the eye diagram for the optical transmit signal sfp transceiver electrical pad layout
delta electronics, inc. 5 aug., 2006 rev. 6a www.deltaww.com pin function definitions pin num. name function plug seq. notes 1 veet transmitter ground 1 2 tx fault transmitter fault indication 3 note 1 3 tx disable transmitter disable 3 note 2 module disables on high or open 4 mod-def2 module definition 2 3 no te 3, 2 wire serial id interface 5 mod-def1 module definition 1 3 no te 3, 2 wire serial id interface 6 mod-def0 module definition 0 3 note 3, grounded in module 7 rate select not connect 3 function not available 8 los loss of signal 3 note 4 9 veer receiver ground 1 note 5 10 veer receiver ground 1 note 5 11 veer receiver ground 1 note 5 12 rd- inv. received data out 3 note 6 13 rd+ received data out 3 note 7 14 veer receiver ground 1 note 5 15 vccr receiver power 2 3.3 5%, note 7 16 vcct transmitter power 2 3.3 5%, note 7 17 veet transmitter ground 1 note 5 18 td+ transmit data in 3 note 8 19 td- inv. transmit data in 3 note 8 20 veet transmitter ground 1 note 5 plug seq.: pin engagement sequence during hot plugging. notes: 1) tx fault is an open collector/drain output, which should be pulled up with a 4.7k ? 10k ? resistor on the host board. pull up voltage between 2.0v and vcct, r+0.3v. when high, output indicates a laser fault of some kind. low indicates normal operation. in the low state, the output will be pulled to < 0.8v. 2) tx disable is an input that is used to shut down the transmitter optical output. it is pulled up within the module with a 4.7 ? 10 k ? resistor. its states are: low (0 ? 0.8v): transmitter on (>0.8, < 2.0v): undefined high (2.0 ? 3.465v): transmitter disabled open: transmitter disabled 3) mod-def 0,1,2. these are the module definition pins. they should be pulled up with a 4.7k ? 10k ? resistor on the host board. the pull-up voltage shall be vcct or vccr (see section iv for further details). mod-def 0 is grounded by the module to indicate that the module is present mod-def 1 is the clock line of two wire serial interface for serial id mod- def 2 is the data line of two wire serial interface for serial id 4) los (loss of signal) is an open collector/drain output, which should be pulled up with a 4.7k ? 10k ? resistor. pull up voltage between 2.0v and vcct, r+0.3v. when high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). low indicates normal operation. in the low state, the output will be pulled to < 0.8v. 5) veer and veet may be internally connected within the sfp module. 6) rd-/+: these are the differential receiver outputs. they are ac coupled 100 ? differential lines which should be terminated with 100 ? (differential) at the user serdes. the ac coupling is done inside the
delta electronics, inc. 6 aug., 2006 rev. 6a www.deltaww.com module and is thus not required on the host board. the voltage swing on these lines will be between 370 and 2000 mv differential (185 ? 1000 mv single ended) when properly terminated. 7) vccr and vcct are the receiver and transmitter power supplies. they are defined as 3.3v 5% at the sfp connector pin. maximum supply current is 300ma. recommended host board power supply filtering is shown below. inductors with dc resistan ce of less than 1 ohm should be used in order to maintain the required voltage at the sfp input pin with 3.3v supply voltage. when the recommended supply-filtering network is used, hot plugging of the sfp transceiver module will result in an inrush current of no more than 30ma greater than the steady state value. vccr and vcct may be internally connected within the sfp transceiver module. 8) td-/+: these are the differential transmitter inputs. they are ac-coupled, differential lines with 100 ? differential termination inside the module. the ac coupling is done inside the module and is thus not required on the host board. the inputs will accept differential swings of 500 ? 2400 mv (250 ? 1200 mv single-ended), though it is recommended that values between 500 and 1200 mv differential (250 ? 600 mv single-ended) be used for best emi performance. recommend circuit schematic laser diode photo diode 1uh 1uh 0.1uf 10uf 0.1uf 0.01uf 0.01uf 0.01uf 0.01uf 0.1uf 10uf res1 res1 100 ohms* res1 res1 res1 10k ohms 100 ohms vcc protocol vcc serdes ic protocol ic pld / pal mod_def 2 mod_def 1 mod_def 0 3.3v 3.3v delta sfp module preamp & tx_disable quantizer tx_fault td + td - veet rd + rd - rx_los veer tx_disable tx_fault rx_los res1 = 4.7k to 10k ohms vcct vccr laser driver * depands on serdes ic used eeprom
delta electronics, inc. 7 aug., 2006 rev. 6a www.deltaww.com package outline drawing
delta electronics, inc. 8 aug., 2006 rev. 6a www.deltaww.com sfp timing parameters for sfp management parameter symbol min. max. unit note tx_disable assert time t_off 10 sec 1 tx_disable negate time t_on 1 msec 2 time to initialize, including reset of tx_fault t_init 300 msec 3 tx fault assert time t_fault 100 sec 4 tx_disable to reset t_rest 10 sec 5 los assert time t_loss_on 100 sec 6 los deassert time t_loss_off 100 sec 7 serial id clock rate f_serial_clock 100 khz notes: 1) time from rising edge of tx_disable to when the optical output falls below 10% of nominal 2) time from falling edge of tx_disable to when the modulated optical output rises above 90% of nominal 3) from power on or negation of tx_fault using tx disable 4) time from fault to tx fault on. 5) time tx disable must be held high to reset tx_fault 6) time from los state to rx los assert 7) time from non-los state to rx los deassert
delta electronics, inc. 9 aug., 2006 rev. 6a www.deltaww.com enhanced digital diagnostic interface the memory map in the following describes an extension to the memory map defined in sfp msa. the enhanced interface uses the two wire serial bus address 1010001x(a2h ) to provide diagnostic information about the module?s present operating conditions. 2 wire address 1010000 x (a0h) 2 wire address 1010001 x (a2h) 0 0 55 alarm and warning thresholds (56 bytes) 95 serial id defined by sfp msa (96 bytes) 56 95 cal constants (40 bytes) 96 96 119 real time diagnostic interface (24 bytes) 127 vender specific (32 bytes) 120 127 vender specific 128 128 247 user writable eeprom (120 bytes) 255 reserved in sfp msa (128 bytes) 248 255 vender specific (8 bytes) digital diagnostic memory map specific data field descriptions
delta electronics, inc. 10 aug., 2006 rev. 6a www.deltaww.com eeprom serial id memory contents (2-wire address a0h) address hex ascii address hex ascii address hex ascii 00 03 43 pn 86 dc 01 04 44 pn 87 dc 02 07 45 pn 88 dc 03 00 note 1 46 pn 89 dc 04 xx 47 pn 90 dc 05 xx 48 pn 91 dc 06 xx 49 pn 92 68 07 00 50 pn 93 b0 08 00 51 pn 94 02 09 00 52 pn 95 cs2 note 9 10 00 53 pn 96 00 11 01 54 pn 97 00 12 0d 55 pn 98 00 13 00 56 30 99 00 14 xx note 2 57 30 100 00 15 xx note 3 58 30 101 00 16 00 59 0a 102 00 17 00 60 cw note 5 103 00 18 00 61 cw note 5 104 00 19 00 62 00 105 00 20 44 d 63 cs1 note 6 106 00 21 45 e 64 00 107 00 22 4c l 65 1a 108 00 23 54 t 66 05 109 00 24 41 a 67 05 110 00 25 20 68 sn note 7 111 00 26 20 69 sn 112 00 27 20 70 sn 113 00 28 20 71 sn 114 00 29 20 72 sn 115 00 30 20 73 sn 116 00 31 20 74 sn 117 00 32 20 75 sn 118 00 33 20 76 sn 119 00 34 20 77 sn 120 00 35 20 78 sn 121 00 36 00 79 sn 122 00 37 00 80 sn 123 00 38 00 81 sn 124 00 39 00 82 sn 125 00 40 pn note 4 83 sn 126 00 41 pn 84 dc note 8 127 00 42 pn 85 dc 128 00 note 10 notes: 1) byte 3~10: code for electronic compatibility or optical compatibility. 2) byte 14:transmission distance in km 3) byte 15: transmission distance in 100m, distance >25.5km: ffh 4) byte 40-55: delta part number 5) byte 60-61: the center wavelength of transmitter 6) byte 63: check sum of bytes 0-62. 7) byte 68-83: serial number. 8) byte 84-91: date code.
delta electronics, inc. 11 aug., 2006 rev. 6a www.deltaww.com 9) byte 95: check sum of bytes 64-94. 10) byte 128 to 255 had been set hex 00. digital diagnostic monitoring interface alarm and warning thresholds (2-wire address a2h) address # bytes name value (dec.) unit note 00-01 2 temp high alarm t c (max.)+15 02-03 2 temp low alarm t c (min.) 04-05 2 temp high warning t c (max.)+10 06-07 2 temp low warning t c (min.)+10 1 08-09 2 voltage high alarm vcc+5% 10-11 2 voltage low alarm vcc-5% 12-13 2 voltage high warning vcc+3% 14-15 2 voltage low warning vcc-3% volt 16-17 2 bias high alarm i op *2+35 18-19 2 bias low alarm i op -13 20-21 2 bias high warning i op *2+30 22-23 2 bias low warning i op ?8 ma 2 24-25 2 tx power high alarm p+3 26-27 2 tx power low alarm p-3 28-29 2 tx power high warning p+2 30-31 2 tx power low warning p-2 dbm 3 32-33 2 rx power high alarm p 0 +3 34-35 2 rx power low alarm p s -2 36-37 2 rx power high warning p 0 +2 38-39 2 rx power low warning p s dbm 4 40-45 16 reversed 56-91 36 external calibration constants 92-94 3 reversed 95 1 checksum 5 96-97 2 real time temperature 98-99 2 real time supply voltage 100-101 2 real time tx bias current 102-103 2 real time tx optical power 104-105 2 real time rx received power 106-109 4 reserved 110 1 optional status/ control bits 6 111 1 reserved 112-119 8 optional set of alarm and warning 7 notes: 1) t c : case operating temperature 2) i op : operating current at room temperature. the min. setting current is 0 ma. 3) p: operating optical power of transmitter at room temperature. 4) p 0 : overload optical power of receiver p s : sensitivity optical power of receiver
delta electronics, inc. 12 aug., 2006 rev. 6a www.deltaww.com 5) byte 95 contains the low order 8bits of sum of bytes 0-94 6) state/ control bits byte bit name description 110 7 tx disable state digital state of the tx disable input pin 110 6 soft tx disable read/ write bit that allow software disable of laser 110 5 reserved 110 4 rate select tate na 110 3 soft rate select na 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 na 7) optional set of alarm and warning 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 vcc high alarm set when internal supply voltage exceeds high alarm level 112 4 vcc 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 bi as 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 5-0 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 vcc high warning set when internal supply voltage exceeds high warning level 116 4 vcc 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 5-0 reserved digital diagnostic monitor accuracy parameter typical value note transceiver temperature 3 1 power supply voltage 3% 2 tx bias current 10% tx optical power 1.5db rx optical power 3db notes: 1) temperature is measured internal to the transceiver.
delta electronics, inc. 13 aug., 2006 rev. 6a www.deltaww.com 2) voltage is measured internal to the transceiver. regulatory compliance test item reference qty? evaluation (#1) electromagnetic interference emc fcc class b en 55022 class b cispr 22 5 (#2) immunity radio frequency electromagnetic field en 61000-4-3 iec 1000-4-3 5 (#3) immunity electrostatic discharge to the duplex sc receptacle en 61000-4-2 iec 1000-4-2 iec 801.2 5 (#4) electrostatic discharge to the electrical pins mil-std-883c method 3015.4 eiaj#1988.3.2b version 2, machine model 5 (1) satisfied with electrical characteristics of product spec. (2) no physical damage ordering information for sfp modules lcp-1250x 1 x 2 x 3 x 4 x 5 x 6 x 1 : fiber b : single-mode 1310nm d : single-mode 1550nm x 4 : digital diagnostic function d : with digital diagnostic function x 2 : power supply voltage and sd level 4 : 3.3v, ttl sd level x 5 : rohs compliance r : rohs compliant x 3 : distance m : 40km w : 70km r : 80km v : 100km x 6 : temperature blank : -5 to +70 degree c h : -10 to +85 degree c t : -40 to +85 degree c revision history rev date contents 6a aug., 2006 first release

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