产品介绍： sfp千兆多模模块-(850nm,0.55km,lc) 产品特点： features data-rate of 1.25gbps operation 850nm vcsel laser and pin photodetector compliant with sfp msa and sff-8472 with duplex lc receptacle digital diagnostic monitoring： internal calibration or external calibration 500m transmission with 50/125μm mmf 300m transmission with 62.5/125μm mmf compatible with rohs +3.3v single power supply operating case temperature： standard : -5 to +70°c extended : -20 to +85°c industrial : -40 to +85°c 硬件规格： absolute maximum ratings table 1 - absolute maximum ratings parameter symbol min max unit supply voltage vcc -0.5 4.5 v storage temperature ts -40 +85 °c operating humidity - 5 85 % recommended operating conditions table 2 - recommended operating conditions parameter symbol min typical max unit operating case temperature standard tc 0 +70 °c -20 +85 industrial -40 +85 °c power supply voltage vcc 3.13 3.3 3.47 v power supply current icc 300 ma data rate 1.25 gbps optical and electrical characteristics sfp-ge-sx-mm850: (vcsel and pin, 500m reach) table 3 - optical and electrical characteristics parameter symbol min typical max unit notes transmitter centre wavelength λc 830 850 860 nm spectral width (rms) ?λ 0.85 nm average output power pout -9.5 -3.5 dbm 1 extinction ratio er 9 db optical rise/fall time (20%~80%) tr/tf 0.26 ns data input swing differential vin 400 1800 mv 2 input differential impedance zin 90 100 110 ω tx disable disable 2.0 vcc v enable 0 0.8 v tx fault fault 2.0 vcc v normal 0 0.8 v receiver centre wavelength λc 770 860 nm receiver sensitivity -18 dbm 3 receiver overload 0 dbm 3 los de-assert losd -18 dbm los assert losa -35 dbm los hysteresis 1 4 db data output swing differential vout 400 1800 mv 4 los high 2.0 vcc v low 0.8 v notes: 1. the optical power is launched into mmf. 2. pecl input, internally ac-coupled and terminated. 3. measured with a prbs 27-1 test pattern @1250mbps, ber ≤1×10-12. 4. internally ac-coupled. 软件功能： applications gigabit ethernet fiber channel switch to switch interface switched backplane applications router/server interface other optical transmission systems 订购信息： ordering information part number product description sfp-ge-sx-mm850 850nm, 1.25gbps, 550m, -5oc ~ +70oc