SFP SX

SFP SX1.25Gbps SFP Optical Transceiver, 550m Reach (PN: SP-851G-SX(D)x)Features ●  Data-rate of 1.25Gbps operation ●  850nm VCSEL laser and PIN photo detector ●  Compliant with SFP MSA and SFF-8472 with duplex LC receptacle ●  Digital Diagnostic Monitoring:    Internal Calibration or External Calibration ●  550m transmission with 50/125µm MMF ●  300m transmission with 62.5/125µm MMF ●  Compatible with RoHS ●  +3.3V single power supply ●  Operating case temperature:    Standard:  0 to +70°C    Extended: -20 to +85°C    Industrial: -40 to +85°CApplications ●  Gigabit Ethernet ●  Fiber Channel ●  Switch to Switch interface ●  Switched backplane applications ●  Router/Server interface ●  Other optical transmission systemsDescriptionThe SFP transceivers are high performance, cost effective modules supporting data-rate of 1.25Gbps and 550m transmission distance with MMF.Absolute Maximum RatingsTable 1 - Absolute Maximum RatingsParameter Symbol Min Max Unit Supply VoltageVcc-0.54.5VStorage TemperatureTs-40+85°COperating Humidity-585%Recommended Operating Conditions Table 2 - Recommended Operating Conditions      Parameter Symbol Min Typical Max Unit Operating Case TemperatureStandardTc0+70°C-20+85industrial-40+85°CPower Supply VoltageVcc3.133.33.47VPower Supply CurrentIcc300mAData Rate1.25GbpsOptical and Electrical Characteristics PN: SP-851G-SX(D)x:  (VCSEL and PIN, 500m Reach) Table 3 - Optical and Electrical Characteristics      Parameter Symbol Min Typical Max Unit Notes TransmitterCentre Wavelengthλc830850860nmSpectral Width (RMS)∆λ0.85nmAverage Output PowerPout-9.5-3.5dBm1Extinction RatioER9dBOptical Rise/Fall Time (20%~80%)tr/tf0.26nsData Input Swing DifferentialVIN4001800mV2Input Differential ImpedanceZIN90100110ΩTX DisableDisable2.0VccVEnable00.8VTX FaultFault2.0VccVNormal00.8VReceiverCentre Wavelengthλc770860nmReceiver Sensitivity-18dBm3Receiver Overload0dBm3LOS De-AssertLOSD-18dBmLOS AssertLOSA-35dBmLOS Hysteresis14dBData Output Swing DifferentialVout4001800mV4LOSHigh2.0VccVLow0.8VNotes: 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. The transceiver consists of three sections: a VCSEL laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.  The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA. Ordering information for SFP SX Part Number Product Description SP-851G-SXC850nm, 1.25Gbps, 550m,   0ºC ~ +70ºCSP-851G-SXDC850nm, 1.25Gbps, 550m,   0ºC ~ +70ºC,  With Digital Diagnostic MonitoringSP-851G-SXE850nm, 1.25Gbps, 550m,  -20ºC ~ +85ºCSP-851G-SXDE850nm, 1.25Gbps, 550m,  -20ºC ~ +85ºC,  With Digital Diagnostic MonitoringSP-851G-SXT850nm, 1.25Gbps, 550m,  -40ºC ~ +85ºCSP-851G-SXDT850nm, 1.25Gbps, 550m,  -40ºC ~ +85ºC,  With Digital Diagnostic Monitoring Regular part number/nameSFP-GE-SGLC-SX-MMDJ4858C1000BASE-SX SFPSFP Multimode