1A314

PRODUCT INFORMATION 860nm 1A314 High-Performance LED Baseband Video The exceptionally low thermal droop of this device allows baseband video transmission with ultimate quality and minimum distortion. The doublelens optical system provides for optimum coupling of power into the fiber. Optical and Electrical Characteristics PARAMETER SYMBOL MIN. TYP . MAX. UNIT (25° C Case Temperature) TEST CONDITION Fiber-Coupled Power (Fig.1, 2,& 3) (Table 1) Pfiber tr, tf fc l Pl p 70 100 6 55 1 8 W ns MHz % 880 nm nm 2 20 V A pF IF =100mA (Note 1) IF =100mA (no bias) Fiber: 62.5/125 m Graded Rise and Fall Time (10-90%) Bandwidth (3dBel ) IF =100 mA IF =100 mA IF =100 mA IF =100 mA IF =100 mA VR=1V Index NA=0.275 Thermal Droop (nonlinearity) (Note 2) Peak Wavelength Spectral Width (FWHM) Forward Voltage Reverse Current Capacitance (Fig.5) 840 860 50 VF IR C 1.6 250 VR= 0V, f=1 MHz Note 1: Measured at the exit of 100 meters of fiber. Note 2: Transient decline in optical power due to self-heating. Ø4.7 Ø1.5 0.6 Absolute Maximum Ratings PARAMETER SYMBOL LIMIT 3.7 Storage Temperature Operating Temperature 14 Tstg Top Ptot IF IFRM VR Tsld -55 to +125 C -55 to +125 C 250 mW 110 mA 180 mA 1.5 V 260 C Electrical Power Dissipation Continuous Forward Current ( 10 kHz) 50%, f 1 MHz) 0.4 CASE Peak Forward Current (duty cycle Reverse Voltage ANODE CATHODE All dimensions in mm Soldering Temperature (2mm from the case for 10 sec) 2.5 5.4 BOTTOM VIEW Thermal Characteristics The anode is in electrical contact with the case. PARAMETER SYMBOL MIN. TYP. MAX. UNIT TO-46 Package With Lens Thermal Resistance - Infinite Heat Sink Thermal Resistance - No Heat Sink Rthjc Rthja -0.5 0.3 d /dTj 100 400 C/W C/W %/ C nm/ C Temperature Coefficient - Optical Power dP/dTj Temperature Coefficient -W avelength 12428.11 1994-09-20 Europe: Tel (46) 8 58 02 45 00 Fax (46) 8 58 02 01 10 Tel (44) 1291 436180 Fax (44) 1291 436771 America: Tel 1-800-96MITEL Fax (613) 592-6909 Asia: Tel (65) 293 5312 Fax (65) 293 8527 High-Performance LED 1A314 860nm Typical Fiber-Coupled Power Core Diameter/Cladding Diameter Numerical Aperture RELATIVE FIBER-COUPLED POWER % 100 FIGURE 1 % 100 FIGURE 2 r z = opt. Øc = 62.5ʵm RELATIVE FIBER-COUPLED POWER 50/125 m 0.20 62.5/125 m 0.275 100/140 m 0.29 200/230 m 0.37 80 80 z 40 W Table 1 100 W 250 W 400 W 60 60 40 40 r 20 r = opt. Øc = 62.5ʵm z 20 0 0.5 1.0 1.5 2.0 2.5 3.0 mm 0 0 20 40 60 80 100 µm z - AXIAL DISPLACEMENT OF FIBER r - RADIAL DISPLACEMENT OF FIBER % 100 FIGURE 3 MAX. ELECTRICAL POWER DISSIPATION mW 300 FIGURE 4 RELATIVE FIBER-COUPLED POWER 80 50% DUTY CYCLE 200 60 DC INFINITE HEAT SINK NO HEAT SINK 40 100 20 HEAT SINKED 0 0 40 80 120 160 200 mA 0 0 50 100 150¡C FORWARD CURRENT OPERATING TEMPERATURE mA 200 FIGURE 5 FORWARD CURRENT 100 0 0 1 2 3V FORWARD VOLTAGE