2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 1 oas25320 series part number oas25320x-nv-wdm-yy-zz modification history rev. date originator comments, modifications features -center wavelength range: 1528.77 to 1563.86nm it u-t g.692 100ghz channel spacing -high output power +7dbm(typ) -operation speed 150m to 2.7gbps -selection of clocked or non-clocked operation -selection of wavelength 1ch sifting -supply voltage: +3.3v and +5v application -sonet and itu-t compliant at oc- 48 and stm-16 and fec for dwdm document number qps-0202-051 revision 0.1 date: aug. 27, 2002 author t.arai project manager k. yusa
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 2 1. specifications table 1.1 specifications ( vcc =+5.0v5%,tc=0 to 70c) parameter unit values mean launched p ower ran g e dbm +6 to +8 maximum operating bit rate gbps 2.488 center wavelen g th ran g e nm 1528.77 to 1563.86 wavelength channel spacing itu-t g.692 100ghz channel spacing center wavelen g th accurac y nm 0.015 variation center wavelen g th over tem p erature nm 0.05 maximum s p ectral width [ 20db down ] nm 0. 3 ( t yp) , 0. 5 ( max ) minimum side mode su pp ression ratio db 30 center wavelen g th a g in g bol to eol nm 0.1 minimum extinction ratio db 8.2 o p tical out p ut waveform meets for itu-t g.957 maximum fiber dis p ersion p s/nm 5 o p eratin g case tem p erature ran g e c tc=0 to+70 o p eratin g humidit y % 0 to 85 dimension mm 73.4 x 51 x 12.7 table 1.2 absolute maximum ratings parameter symbol condition min max unit supply voltage vcc +5v pin vcc -0.5 +7 v supply voltage vtec+3.3v pin vtec tc=+25c -0.5 +4.6 v maximum signal input voltage (clock/data) v i 0 vcc v maximum signal output current (tda pin) i o - -25 +25 ma operating case temperature range t op -20 +85 c storage temperature range t stg -40 +85 c lead soldering temperature/time - - 260/10 c/s tensile strength of fiber pigtail cable - tc=+25c - 500 g minimum bending radius of fiber pigtail cable - 30 mm
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 3 table 1.3 electrical specifications (vcc =+5.0v5%,tc=+25c) parameter symbol min typ max unit power supply voltage vcc +4.75 +5.00 +5.25 v power supply current i cc - 350 400 ma tec power supply voltage v tec +3.0 +3.3 +3.5 v tec power supply current i tec - 0.4 1.0 a single end vin-single 250 - 1300 data/clock input amplitude [ ac- coupled at internal ] differential vin-diff. 125 650 mvp-p input impedance r inroad - 50 - ohm clocked v clk on 0 - +0.8 v clock mode select input voltage non clocked v non clk 2.0 - vcc v n v n 0 - +0.8 v wavelength selection input voltage n-1 v n-1 2.0 - vcc v enable v en 0 - +0.8 v shut down input voltage disable v dis 2.0 - vcc v normal v ol 0 - +0.3 v deviation v oh +4.5 vcc v tec temperature deviation error monitor (active high) setting level alarm -1 +1 c v ol 0 - +0.3 v laser degrade alarm (active low) 3 v oh +4.5 - vcc v ld bias monitor 3 v lbm - 20 - mv/ma back facet monitor v bf - 500 - mv/mw data/clock input rise/fall time 1 t r /t f - - 0.12 ns data/clock timing 2 ts/th 50 - - psec input clock pulse width distortion - 40 50 60 % 1. between 20% and 80% 2. the data and clock timing diagram is figure 1.1 3. see table 4.1
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 4 50ps admitted range of cki(+) rise-edge di(+) cki(+) 50ps 50ps 50ps ts th figure 1.1 data/clock timing diagram 2. block diagram true data in p ut wavelen g th selection command true clk in p ut ld drive r apc tem p erature deviation alarm back facet monitor false clk in p ut false data in p ut ld module clock select at c laser bias monitor or laser degraed alarm shut down opt out d-f/f figure 2.1 block diagram
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 5 3. package outline (unit : mm) figure 2.2 package outline
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 6 4. pin descriptions table 4.1 pin descriptions no. symbol functionality no. symbol functionality 01 gnd ground ( tec ) 13 vcc positive power supply +5.0v 02 back(+) back facet monitor 14 vtec tec supply voltage +3.3v 03 bias(+)/lda laser bias monitor or laser degraed alarm(ttl,active?lo?) 1 15 gnd ground 04 sdc shut down command(ttl, open/ lo=operating , hi=shutdown) 16 di(+) true data input 05 selc clock mode select(ttl, open/ lo=clk , hi=clk unuse) 17 gnd ground 06 gnd ground 18 di(-) false data input 07 tda temperature deviation alm (ttl,active?high?) 19 gnd ground 08 nc no user connection 20 cki(+) true clock input 09 nc no user connection 21 gnd ground 10 wsc wavelength selection command (ttl, open/lo=n , hi=n-1) 22 cki(-) false clock input 11 gnd ground 23 gnd ground 12 nic no internal connection 24 vcc positive power supply +5.0v 1. laser bias monitor and laser degraed alarm functions are customer select options . 5. recommended interface circuit figure 5.1 recommended interface circuit 01 0.1uf 22uf vtec 15uh 0.1uf 22uf vcc 15uh true data input true clock input 20 16 14 13, 24 06, 11, 15, 17, 19, 21, 23 04 shut down wavelength selection 10 oas25320 x-nv-wdm-yy-zz cml cmos/ttl cmos ttl 02 back facet monitor 03 tec deviation error alarm 07 laser bias monitor or laser degraed alarm clock mode select 05 false clock input 22 18 false data input
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 7 6. precautions for handling the circuits of these modules operate at very small si gnal. in order to avoid the degradation of the optical sensitivity due to external noise, the bottom pattern of these modules on the pcb should be ground pattern with low impedance. do not mount/pattern device/cir cuits which generate high freque ncy noise close to the module. in order to operate the module stable against the power noise, install the power suppl y noise reduction circuits. the impedance between the power and ground pattern of the power circuit should be as low as possible. the elements around the module should be mounted close to the pins of the module. if an optical power exceeding the abso lute maximum ratings is fed to the module, the optical receiver may be damaged. set the optical i nput power appropriately when in use of these modules. 7. qualification and reliability to help ensure high product reliability and customer sa tisfaction, oki is committed to an intensive quality program that starts in the design phase and proceeds through the manufacturing process. optical transceiver modules are qualified to oki inte rnal standards using mil-std-883 test methods and procedures and using sample techniques consistent w ith telcordia requirements. this qualification program fully meets the intent of telcordia reliability practices gr-468-core. 8. laser safety all version of transceiver are class 1 laser pr oducts fda complies with 21 cfr 1040.10 and 1040.11 requirements. also, all versions are class 1 laser products pre iec 825-1 .
2.5gb/s optical transmitter for dwdm oas25320 series document number qps-0202-051 august 2002 oki electric industry 8 9. ordering information oas25320 -nv-wdm - - pigtail fiber length 10 =1.0m 08 =0.8m 05 =0.5m optical connector type; s = sc connector f = fc connector no. itu-t furequencythz center wavelemgth 61 196.1 1528.77 60 196.0 1529.55 59 195.9 1530.33 58 195.8 1531.12 57 195.7 1531.90 56 195. 6 1532.68 55 195.5 1533.47 54 195.4 1534.25 53 195.3 1535.04 52 195.2 1535.82 51 195.1 1536.61 50 195.0 1537.40 49 194.9 1538.19 48 194.8 1538.98 47 194.7 1539.77 46 194. 6 1540.5 6 45 194.5 1541.35 44 194.4 1542.14 43 194.3 1542.94 42 194.2 1543.73 41 194.1 1544.53 40 194.0 1545.32 39 193.9 1546.12 38 193.8 1546.92 37 193.7 1547.72 36 193. 6 1548.51 35 193.5 1549.32 34 193.4 1550.12 33 193.3 1550.92 32 193.2 1551.72 31 193.1 1552.52 30 193.0 1553.33 29 192.9 1554.13 28 192.8 1554.94 27 192.7 1555.75 26 192. 6 1556.55 25 192.5 1557.3 6 24 192.4 1558.17 23 192.3 1558.98 22 192.2 1559.79 21 192.1 1560.61 20 192.0 1561.42 19 191.9 1562.23 18 191.8 1563.05 17 191.7 1563.8 6
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