1 MFT62340-J parallel fiber transmitter preliminary information features data rate 155mbps to 2.5gbps per channel 12 parallel channels, total 30gbps capacity differential cml (current-mode logic) interface link length up to 300m (with 500mhz . km fiber) channel ber 10 -12 when used with mfr62340 designed for multimode fiber ribbon mpo/mtp or mpx connector options surface-mount package pick-and-placeable, reflow soldering relaxed class 1 iec 60825-1 amd. 2 compliant matches the mfr62340 receiver emi shield available applications high-speed interconnects switches, routers, transport equipment interconnects within and between equipment rack-to-rack shelf-to-shelf board-to-board board-to-optical backplane description the mft62340 and mfr62340 is a very high speed transmitter and receiver pair for parallel fiber applications. this pair, together with a multimode parallel fiber ribbon cable, constitute a complete parallel fiber link. the link provides high-speed interconnects for use within and between large capacity switches, routers and data transport equipment. the transmitter and receiver have a differential cml interface and support mpo/mtp and mpx fiber connectors. an emi shield is available for the mpo/mtp connector for use in front panel applications. figure 1 - MFT62340-Jo: mpo/mtp connector option dimensions in mm ds5396 15094.00.10 issue 1.2 dec 2000 ordering information MFT62340-Jo mpo/mtp connector MFT62340-Jos with emi shield MFT62340-Jx mpx connector
MFT62340-J preliminary information 2 absolute maximum ratings* * exceeding these values may cause permanent damage. functional operation under these conditions is not implied. ** human body model. recommended operating conditions* * maximum run length: 72 consecutive 1?s or 0?s; dc balance to be maintained within 144 bits. fiber: 50/125 m or 62.5/125 m. characteristics* * operating conditions are as per recommended operating conditions. test pattern prbs 2 31 -1 at 2.5gbps and 50% duty cycle unless otherwise specified. parameter symbol min max unit 1 supply voltage v cc -0.3 3.6 v 2 voltage on any pin v pin -0.3 v cc +0.3 v 3 operating and storage moisture m os 20 85 % 4 storage temperature t stg -20 100 c 5 esd resistance all i/o except cml** v e -2 2 kv 6 esd resistance cml i/o** v ec -500 500 v parameter symbol min max unit 1 case temperature t case 080c 2 supply voltage v cc 3.3-5% 3.3+5% v 3 cml differential input voltage (fig. 2,3) v icml 200 800 mv 4 data rate per channel f d 0.155 2.5 gbps 5 cml differential input rise/fall time (20-80%, fig. 3) t rc , t fc 160 ps 6 cmos input voltage low v lcmos 0 30%v cc v 7 cmos input voltage high v hcmos 70%v cc v cc v 8 power supply noise (1mhz to 2ghz) v nps 100 mv p-p parameter symbol min typ max unit 1 power consumption (2.5 gbps, fig. 4) p d 1.8 2.4 w 2 power supply current i cc 580 m 3 cml differential input impedance (fig. 2) z in 80 100 120 ? 4 optical rise/fall time (20-80%) t ro, t fo 130 ps 5 average fiber output power per channel p f -7 -3 dbm 6 deterministic jitter dj 50 ps p-p 7 random jitter (er = 6db) rj 5.2 ps rms 8 optical wavelength 830 840 860 nm 9 spectral width ? 0.85 nm 10 extinction ratio er 6 db 11 nmos output voltage low (i sink = 3ma) v lnmos 0.4 v 12 nmos output voltage high v hnmos 2.4 v 13 channel skew t sk 175 ps 14 relative intensity noise rin -118 db/hz
3 preliminary information MFT62340-J figure 2 - differential cml interface figure 3 - differential cml timing diagram figure 4 - relative power consumption vs. data rate recommended cml output mft62340 cml input +3.3v 100nf z out =100 ? differential 100nf z o =100 ? differential z in =100 ? differential 80% 20% t rc t fc v icml data inv data 80% 60% 40% 20% 100% 1.0 2.5 relative power consumption data rate (gbps) 0.5 1.5 2.0 0
MFT62340-J preliminary information 4 figure 5 - pin assignment (top view) pin description 1 25 26 50 fiber connector fiber ribbon 1 12 MFT62340-J no name logic description no name logic description 1 gnd ground 50 gnd ground 2v cc positive power supply 49 v cc positive power supply 3v cc positive power supply 48 v cc positive power supply 4 v en1 ? 4 cmos vcsels enable ch. 1-4 1 47 nflt nmos fault detection 2 5 v en5 ? 8 cmos vcsels enable ch. 5-8 1 46 not connected 6 v en9 ? 12 cmos vcsels enable ch. 9-12 1 45 not connected 7 gnd ground 44 gnd ground 8 di1c cml data input no 1, inv. 43 di12 cml data input no 12. 9 di1 cml data input no 1. 42 di12c cml data input no 12, inv. 10 gnd ground 41 gnd ground 11 di2c cml data input no 2, inv. 40 di11 cml data input no 11. 12 di2 cml data input no 2. 39 di11c cml data input no 11, inv. 13 gnd ground 38 gnd ground 14 di3c cml data input no 3, inv. 37 di10 cml data input no 10. 15 di3 cml data input no 3. 36 di10c cml data input no 10, inv. 16 gnd ground 35 gnd ground 17 di4c cml data input no 4, inv. 34 di9 cml data input no 9. 18 di4 cml data input no 4. 33 di9c cml data input no 9, inv. 19 gnd ground 32 gnd ground 20 di5c cml data input no 5, inv. 31 di8 cml data input no 8. 21 di5 cml data input no 5. 30 di8c cml data input no 8, inv. 22 gnd ground 29 gnd ground 23 di6c cml data input no 6, inv. 28 di7 cml data input no 7. 24 di6 cml data input no 6. 27 di7c cml data input no 7, inv. 25 gnd ground 26 gnd ground 1 high = lasers active. internal pull-down resistor 50k ? . 2 low = driver not ready. open drain with internal pull-up resistor 10k ? .
5 preliminary information MFT62340-J mechanical drawings figure 6 - MFT62340-Jo: mpo/mtp connector option figure 7 - MFT62340-Jos: mpo/mtp connector option with emi shield dimensions in mm dimensions in mm
MFT62340-J preliminary information 6 figure 8 - MFT62340-Jx: mpx connector option pcb footprints figure 9 - MFT62340-Jo: mpo/mtp connector option (top view) dimensions in mm dimensions in mm solid lines indicate board layout dashed lines indicate module outline
7 preliminary information MFT62340-J figure 10 - MFT62340-Jos: mpo/mtp connector option with emi shield (top view) figure 11 - MFT62340-Jx: mpx connector option (top view) dashed lines indicate module outline solid lines indicate board layout dimensions in mm dashed lines indicate module outline solid lines indicate board layout dimensions in mm
8 preliminary information MFT62340-J electrical connections figure 12 - recommended electrical connections
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