california eastern laboratories 622.08 mb/s upstream/ downstream atm-pon optical transceiver for onu OD-B6212-ONUB general applied to onu(optical network unit) for single fiber bi-directional transmission on atm-pon system integrated 1.3/1.550 m wdm function by employing plc (planar lightwave circuit) single power supply voltage of +3.3 v transmitter p ar t 622.08 mb/s burst-mode transmitter operating at wavelength of 1.3 m instantaneous operation from the 1st bit of burst cell by feed-forward apc circuit employing rom laser bias current control in burst-by- burst (bias cnt) optical output degrade detection (tx alm) shut down function (shutdown) receiver p ar t 622.08 mb/s continuous-mode receiver operating at wavelength of 1.5 m clock and data recovery function by pll circuit optical input loss detection (rx alm) plc module d-ff ld driver temp. sense ld current control eep rom mon. pd ld 1.3 m alarm det. pll d-ff lim- amp pre-amp pd 1.5 m fiber out alarm det. rx alm clkin datain dataout clkout tx alm shutdown bias cont wdm features block diagram figure 1
symbols parameters units min max v cc power supply voltage v -0.3 +4.0 t stg storage temperature c -40 +85 p f input optical power dbm - 0 v in signal input voltage v -0.3 v cc +0.3 t sol lead soldering temperature c/sec - 260/10 r bending radius of pigtail fiber mm 30 - tensile force on pigtail 2 n- 2 absolute maximum ratings 1 (tc = 25 ? c, unless otherwise specified) notes: 1. operation in excess of any one of these parameters may result in permanent damage. 2. = 200 gf OD-B6212-ONUB recommended operating conditions symbol parameter units min typ max remarks t op ambient temperature ? c -40 - +75 ha ambient humidity % 5 - 95 v cc power supply voltage v +3.135 +3.300 +3.465 i op power supply current ma - - 500 not include lvpecl termination current power supply noise mvpp - - 100 noise frequency at 100 hz to 1 mhz optical interface items unit specifications remarks OD-B6212-ONUB operating wavelength nm 1260 to 1360 normal bit rate mb/s 622.08 line code - scrambled nrz (burst-mode) photo diode - mlm-ld mean output power dbm -2 to +4 optical output waveform - mask spec figure 2 (after passing through a 4th-order thomson filter; fc = 0.75 x 622.08 mhz) exctintion ratio db more than 10 spectral width (rms) nm less than 3.0 launched optical power dbm less than -45 without input to the transmitter consecutive identical digit bit more than 72 immunity tolerance to the transmitter db more than -15 incident light power maximum reflectance db less than -6 measured at wavelength of 1.3 m jitter transfer - mask spec figure 3 jitter tolerance ul p-p less than 0.2 frequency range from 0.5 khz to 1.3 mhz transmitter section
figure 2. mask of eye diagram 500 khz frequency slope = -20 db/dec 0.1 jitter gain (db) 25 khz frequency slope = -20 db/dec 0.75 ulp-p input jitter amplitude 250 khz 0.075 ulp-p figure 3. jitter transfer mask figure 4. jitter tolerance mask items unit specifications remarks OD-B6212-ONUB operating wavelength nm 1480 to 1580 normal bit rate mb/s 622.08+/-100ppm line code - scrambled nrz (continuous-mode) photo diode - pin-pd minimuim sensitivity dbm less than -28 bit error rate is 10 -10 at 2 23 -1 pattern maximum overload dbm more than -6 bit error rate is 10 -10 at 2 23 -1 pattern consecutive identical digit bit more than 72 immunity tolerance to the reflected db less than 10 optical power maximum reflectance db less than -20 measured at wavelength of 1.5 m jitter transfer - mask spec figure 3 jitter tolerance - mask spec figure 4 receiver section optical interface OD-B6212-ONUB 0.0 1.0 0.85 0.65 0.5 0.35 0.15 1.2 1.0 0.8 0.5 0.2 0 -0.2 1 time slot (155.52 mb/s)
OD-B6212-ONUB 1 v cc tx 2 gnd 3 bias cnt+ 4 bias cnt- 5 tx alm 6 clk in+ 7 clk in- 8 gnd 9 data in+ 10 data in- 11 shutdown 12 v cc tx 13 test pin 14 test pin 15 test pin 16 test pin v cc rx 32 gnd 31 gnd 30 gnd 29 rx alm 28 clk out+ 27 clk out- 26 gnd 25 data out+ 24 data out- 23 gnd 22 v cc rx 21 gnd 20 gnd 19 gnd 18 gnd 17 top view pin connections outline dimensions (units in mm) exclusive north american agent for rf, microwave & optoelectronic semiconductors california eastern laboratories ? headquarters ? 4590 patrick henry drive ? santa clara, ca 95054-1817 ? (408) 988-3500 ? telex 34-6393 ? fax (408) 988-0279 24-hour fax-on-demand: 800-390-3232 (u.s. and canada only) ? internet: http://www.cel.com 03/29/2001 data subject to change without notice pin input/ symbol description no. output 1 - vcc tx transmitter power supply (+3.3v) 2 - gnd ground 3 i bias cnt+ laser bias control (positive) 4 i bias cnt- laser bias control (negative) 5 o tx alm optical output alarm 6 i clk in+ clock input (positive) 7 i clk in- clock input (negative) 8 - gnd ground 9 i data in+ data input (positive) 10 i data in- data input (negative) 11 i shutdown optical output shut down 12 - vcc tx transmitter power supply (+3.3v) 13 - test pin connect to ground 14 - test pin connect to ground 15 - test pin connect to ground 16 - test pin connect to ground 17 - gnd ground 18 - gnd ground 19 - gnd ground 20 - gnd ground 21 - vcc rx receiver power supply (+3.3v) 22 - gnd ground 23 o data out - data output (negative) 24 o data out + data output (positive) 25 - gnd ground 26 o clk out- clock output (negative) 27 o clk out+ clock output (positive) 28 o rx alm optical input alarm 29 - gnd ground 30 - gnd ground 31 - gnd ground 32 - vcc rx receiver power supply (+3.3v) tx rx 28 1 17 17.30.6 55.00.6 40.20.6 35.56 5.2 top view 2.54 x 15 = 38.1 9.72 4.64 48.26 0.7 x t 0.3 8.20.3 16 OD-B6212-ONUB date xxxx-xx no.xxxx made in japan nec date ex) 2001-01 serial number ex) 1234 0.64 note: default pigtail fiber length (l) is 540 (+0/-40) mm. default optical connector is sc/pc type.
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