1 21737-0395, rev. a 01/09/2004 ocp dtr-1250-sm-gb-cwdm-i 5v long haul cwdm gbic transceivers features ; up to 70km with single mode fiber ; eight (8) wavelength cwdm transceivers ; compliant with gbic specification, rev. 5.5 ; compatible with ieee 802.3z 1000base-lx specifications for gigabit ethernet ; compatible with optical interface requirements in annex f of gbic specification, rev. 5.5 ; compliant with gbic serial module definition protocol (module definition 4 in annex d) ; hot-pluggable ; excellent emi & esd protection ; eye safe (class i or 1m laser safety) ; duplex sc optical interface ; single +5v power supply ; up to 1250mb/s bi-directional data links the dtr-1250-sm-gb-cwdm-i product family of gbics provides long haul, single mode solutions for 1000base-lx gigabit ethernet ports in a networking switch. the transceivers are offered with two optical link power budget options to support 62km (h7) and 70km (h8) in the networking infrastructure and are available in eight (8) wavelengths: 1470nm, 1490nm, 1510nm, 1530nm, 1550nm, 1570nm, 1590nm and 1610nm. both options use 1550nm dfb lasers to provide minimum optical link power budgets of 22db and 24db. they correspond to transmission distances of 62km and 70km, respectively, assuming a total connector/splice/cwdm mux and demux loss of 4.5db, allocated system penalty of 2db and fiber description optical communication products, inc. absolute maximum ratings loss of 0.25db/km. all transceivers are class i laser products per u.s. fda/cdrh standards. the ?h7? transceivers are class i laser products while the ?h8? transceivers are class 1m laser products per international iec-825 standards. the dtr-1250-sm-gb-cwdm-i transceivers connect to standard 20-pad gbic connectors for hot plug capability. this allows the system designer to make configuration changes or maintenance by simply plugging in different types of gbics without removing the power supply from the host system. the transceivers operate from a single +5v power supply over an operating case temperature range of -5c to +70c. parameter symbol minimum maximum units storage temperature t st - 40 + 85 c operating case temperature t op - 5 + 70 c supply voltage v dd 0+ 6.0v input voltage v in 0 v dd v
2 21737-0395, rev. a 01/09/2004 transmitter performance characteristics (over operating case temperature, v cc = 4.75 to 5.25v) receiver performance characteristics (over operating case temperature, v cc = 4.75 to 5.25v) dtr-1250-sm-gb-cwdm-i parameter symbol minimum typical maximum units operating data rate 1 b -1250-mb/s optical output power 2 h7 p o - 2.0 - + 3.0 dbm h8 0 - + 5.0 center wavelength 1470 c 1464 1470 1477.5 nm 1490 1484 1490 1497.5 1510 1504 1510 1517.5 1530 1524 1530 1537.5 1550 1544 1550 1557.5 1570 1564 1570 1577.5 1590 1584 1590 1597.5 1610 1604 1610 1617.5 spectral width (-20db) ? 20 --1.0nm extinction ratio p hi /p lo 9--db transmitter disabled optical output power 2 p dis --- 35.0dbm deterministic jitter dj - - 80 ps total jitter tj --227ps relative intensity noise rin - - - 120 db/hz dispersion penalty 3 -- -1.5db transmitter output eye compliant with eye mask defined in ieee 802.3z standard 1 data rate ranges from 125mb/s to 1300mb/s. however, some degradation may be incurred in overall performance. 2 measured average power coupled into single mode fiber with 2 7 -1 prbs at 1250mb/s. 3 specified at 1360ps/nm (h7) and 1540ps/nm (h8) dispersion, which corresponds to the approximate worst-case dispersion for 62km and 70km g.652 fiber respectively over the wavelength range of 1464 to 1617.5nm. all parameters guaranteed only at typical data rate optical communication products, inc. date of manufacture: manufactured in the usa this product complies with 21 cfr 1040.10 and 1040.11 meets class i laser safety requirements laser safety : all transceivers are class i laser products per fda/cdrh standards. the h7 transceivers are class i laser products while the h8 transceivers are class 1m laser products per iec-825 standards. they must be operated under specified operating conditions. all parameters guaranteed only at typical data rate parameter symbol minimum typical maximum units operating data rate 1 b - 1250 - mb/s minimum input optical power (10 -12 ber) 2 p min - 24.0 - - dbm maximum input optical power (10 -12 ber) 2 p max - 3.0 - - dbm rx_los thresholds increasing light input p los+ - - - 24.0 dbm decreasing light input p los- - 35.0 - - rx_los timing delay increasing light input t_loss_off - - 100 s decreasing light input t_loss_on - - 100 rx_los hysteresis - 0.5 - - db deterministic jitter dj - - 170 ps total jitter tj --266ps wavelength of operation 1260 - 1620 nm optical return loss orl 12 - - db electrical 3db upper cutoff frequency - - - 1500 mhz 1 data rate ranges from 125mb/s to 1300mb/s. however, some degradation may be incurred in overall performance. 2 measured with 2 7 -1 prbs.
3 21737-0395, rev. a 01/09/2004 dtr-1250-sm-gb-cwdm-i receiver electrical interface (over operating case temperature, v cc = 4.75 to 5.25v) module definition electrical power supply characteristics (over operating case temperature, v cc = 4.75 to 5.25v) transmitter electrical interface (over operating case temperature, v cc = 4.75 to 5.25v) parameter symbol minimum typical maximum units supply voltage v dd 4.75 5.0 5.25 v supply current i dd - 200 270 ma module definition mod_def(0) pin 4 mod_def(1) pin 5 mod_def(2) pin 6 interpretation by host 4 ttl low scl sda serial module definition protocol pin assignments parameter symbol minimum typical maximum units input voltage swing (+tx_dat & -tx_dat) 1 v pp-dif 0.65 - 2.0 v input high voltage (tx_disable) 2 v ih 2- v dd + 0.3 v input low voltage (tx_disable) 2 v il 0-0.5v output high voltage (tx_fault) 3 v oh v cc - 0.5 - v cc + 0.3 v output low voltage (tx_fault) 3 v ol 0-0.5v 1 differential peak-to-peak voltage. 2 there is an internal 5.1k ? pull- up resistor to vddt . 3 open collector compatible, 4.7 to 10k ? pull-up resistor to vcc (host supply voltage). parameter symbol minimum typical maximum units output voltage swing (+rx_dat & -rx_dat) 1 v pp-dif 0.60 - 2.0 vp-p output high voltage (rx_los) 2 v oh v cc - 0.5 - v cc + 0.3 v output low voltage (rx_los) 2 v ol 0-0.5v 1 differential peak-to-peak voltage across external 150 ? load. 2 open collector compatible, 4.7 to 10k ? pull-up resistor to vcc (host supply voltage). pin function pin function 1 rx_los (rx loss of signal) 11 rgnd (rx ground) 2 rgnd (rx ground) 12 -rx_dat (rx data out -) 3 rgnd (rx ground) 13 +rx_dat (rx data out +) 4 mod_def(0) 14 rgnd (rx ground) 5 mod_def(1) 15 vddr (rx supply voltage) 6 mod_def(2) 16 vddt (tx supply voltage) 7 tx_disable 17 tgnd (tx ground) 8 tgnd (tx ground) 18 +tx_dat (tx data in +) 9 tgnd (tx ground) 19 -tx_dat (tx data in -) 10 tx_fault 20 tgnd (tx ground)
4 21737-0395, rev. a 01/09/2004 application notes dtr-1250-sm-gb-cwdm-i to 75 load ? gbic 18 2,3,8,9,11,14,17,20 19 7 +tx_dat scl vdd (5v) ttl low (internally connected to gnd) sda vcc (host) 15 5 46 +rx_dat + 1 h coil or ferrite bead (<0.2 series resistance) ? 10 0.1 13 12 -tx_dat tx_disable -rx_dat 16 0.1 + 10 + 10 10 1 0.1 4.7 - 10k ? 75 line ? rx_los tx_fault 75 line ? 75 line ? 75 line ? to 75 load ? 4.7 - 10k ? example of host board schematic connection of the gbic transceiver to the host system: the gbic?s 20-pad connector and two guide tabs connected to the transceiver?s circuit ground connect the gbic to the host system. the two ground tabs make contact to the host circuit ground before the connector pad and discharge any possible component-damaging static electricity. additionally, surge currents are eliminated by using a special slow start circuit and two-stage contact sequence where operational signals and grounds make contact prior to the power supply (as specified in the gbic specification, rev. 5.5). electrical interface: all signal interfaces are compliant with the gbic specification, rev. 5.5. the high speed data interface is differential ac-coupled and can be directly connected to either a 5v or 3.3v serdes ic. all low speed control and sense input/output signals are open collector ttl compatible and should be pulled up with a 4.7 - 10k ? resistor on the host board. rx_los: the rx loss of signal circuit monitors the level of the incoming optical signal and generates a logic high when an insufficient photocurrent is produced. tx_fault: the output indicates low when the transmitter is operating normally, and high when the transmitter or laser current is excessive. tx_fault is an open collector/drain output and should be pulled up with a 4.7 - 10k ? resistor on the host board. tx_disable: when the tx_disable pin is at logic high, the transmitter optical output is disabled (less than -35dbm). serial identification: the dtr-1250-sm-gb-cwdm-i transceivers are compliant with annex d (module definition 4) of the gbic specification, rev. 5.5, which defines the serial identification protocol. the module definition of gbic is indicated by the three module definition pins, mod_def(0), mod_def(1) and mod_def(2). module definition 4 specifies a serial definition protocol with a two-wire i 2 c serial interface; upon power up, mod_def(1:2) appear as nc (no connection), and mod_def(0) is ttl low. when the host system detects this condition, it activates the serial protocol and generates the serial clock signal (scl). the negative edge clocks data from the gbic eeprom. the serial data signal (sda) is for serial data transfer. the host uses sda in conjunction with scl to mark the start and end of serial protocol activation. the data transfer protocol and the details of the mandatory and vendor specific data structures are defined in annex d of the gbic specification, rev. 5.5. power supply and grounding: the power supply line should be well-filtered. all 0.1 f power supply bypass capacitors should be as close to the gbic transceiver module as possible.
5 21737-0395, rev. a 01/09/2004 optical communication products, inc. reserves the right to make changes in equipment design or specifications without notice. i nformation supplied by optical communication products, inc. is believed to be accurate and reliable. however, no responsibility is assumed by optical communication products , inc. for its use nor for any infringements of third parties which may result from its use. no license is granted by implication or otherwise under any patent right of optica l communication products, inc. dtr-1250-sm-gb-cwdm-i package outline optical communication products, inc. 6101 variel avenue, woodland hills, ca 91367, tel.: 818-251-7100, fax: 818-251-7111, www.ocp-inc.com 12.7 .500 8.18 .322 8.9 .35 10.06 -0.20 + 0.04 .396 - .008 +. 0 0 2 12 .472 58 max 2.28 max 13.54 max .533 max 3.05 0.05 .120 .002 guide slots width 27.7 1.09 guide slots height 1.63 -0.10 0 .064 - .004 + .000 pin 1 pin 10 pin 20 37.1 max 1.46 max 30.48 - 0.13 0 1.200 -.005 + .000 25.4 1.000 2x 1 .04 2x 1.27 -0.10 0 .050 -.004 + .000 + + dimensions in inches [mm] default tolerances: .xxx = + .005?, .xx = + .01? ordering information ? 2004, optical communication products, inc. model name nominal wavelength (nm) 22db link budget (62km distance) 1, 2 24db link budget (70km distance) 1, 2 dtr-1250-sm-gb-h7-c470-i dtr-1250-sm-gb-h8-c470-i 1470 dtr-1250-sm-gb-h7-c490-i dtr-1250-sm-gb-h8-c490-i 1490 dtr-1250-sm-gb-h7-c510-i dtr-1250-sm-gb-h8-c510-i 1510 DTR-1250-SM-GB-H7-C530-I dtr-1250-sm-gb-h8-c530-i 1530 dtr-1250-sm-gb-h7-c550-i dtr-1250-sm-gb-h8-c550-i 1550 dtr-1250-sm-gb-h7-c570-i dtr-1250-sm-gb-h8-c570-i 1570 dtr-1250-sm-gb-h7-c590-i dtr-1250-sm-gb-h8-c590-i 1590 dtr-1250-sm-gb-h7-c610-i dtr-1250-sm-gb-h8-c610-i 1610 1 the indicated transmission distance is for guidelines only, not guaranteed. the exact distance is dependent on the fiber loss, connector/splice/ cwdm mux and demux loss and allocated system penalty. longer distances can be supported if the optical link power budget is sa tisfied. 2 assuming a total connector/splice/cwdm mux and demux loss of 4.5db, allocated system penalty of 2db and fiber loss of 0.25db/km .
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