MF228 850 nm, 50 MHz High Performance LED Data Sheet October 2004 Ordering Information MF228 MF228 MF228 MF228 MF228 ST SC SMA FC TO-46 Package ST Housing SC Housing SMA Housing FC Housing -40 °C to +85 °C Note: Rated Fiber coupled power apply only on the TO-46 package, for housing options fiber coupled power is typically 10% less Features Description • • • • This device is capable of providing high power into large-core fiber over a wide temperature range. Thanks to its very uniform phase distribution of the optical power, it is ideal for Electronic Distance Measurement equipment. 850 nm Surface-Emitting LED 70 MHz Bandwidth Uniform phase distribution Designed for 200/280 µm fiber Applications • • • Electronic Distance Measurement (EDM) Sensors Avionics CASE CATHODE ANODE CATHODE ANODE Bottom View Anode in electrical contact with the case Figure 1 - Pin Diagram Figure 2 - Functional Schematic 1 Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2001-2004, Zarlink Semiconductor Inc. All Rights Reserved. MF228 Data Sheet Optical and Electrical Characteristics - Case Temperature 25°C Parameter Symbol Min. Typ. Fiber-Coupled Power (Figures 3, 4, and 5) (Table 1) Pfiber 1000 1200 Rise and Fall Time (10-90%) tr,tf 7 Bandwidth (3dBel) fc 50 Peak Wavelength λp Spectral Width (FWHM) ∆λ 50 Forward Voltage (Figure 7) VF 1.8 Reverse Current IR Capacitance C Note 1: 830 Max. Unit µW IF = 100 mA (Note 1) ns IF = 100 mA (no bias) MHz IF = 100 mA nm IF = 100 mA nm IF = 100 mA 2.2 V IF = 100 mA 20 µA VR = 1 V pF VR-0 V, f = 1 MHz 10 850 Test Condition 870 250 Fiber: 200/280 µm Step Index NA = 0.24 Measured at the exit of 100 meters of fiber. Absolute Maximum Ratings Parameter Symbol Limit Storage Temperature Tstg -55 to +125°C Operating Temperature (derating: Figure 6) Top -40 to +85°C Electrical Power Dissipation (derating: Figure 6) Ptot 250 mW IF 110 mA IFRM 180 mA Reverse Voltage VR 1.5 V Soldering Temperature (2mm from the case for 10 sec.) Tsld 260°C Continuous Forward Current (f<10 kHz) Peak Forward Current (duty cycle<50%,f>1 MHz Thermal Characteristics Parameter Symbol Min. Typ. Max. Unit Thermal Resistance - Infinite Heat Sink Rthjc 100 ° Thermal Resistance - No Heat Sink Rthja 400 °C/W C/W Temperature Coefficient - Optical Power dP/dTj -0.4 %/°C Temperature Coefficient - Wavelength dλ/dTj 0.3 nm/°C Typical Fiber-Coupled Power Core Diameter/Cladding Diameter Numerical Aperture 50/125 µm 0.20 62.5/125 µm 0.275 100/140 µm 0.29 200/230 µm 0.37 200/280 µm 0.24 60 µW 150 µW 450µW 1300 µW 1200 µW 2 Zarlink Semiconductor Inc. MF228 Data Sheet r Relative Fiber-Coupled Power (%) 100 90 z 80 r - optimal ØC = 200 µm 70 60 50 40 30 20 10 0 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3 z - Axial Displacem ent of Fiber (µm) (m ) Figure 3 - Relative Fiber-coupled Power vs. z - Axial Displacement of Fiber r % 100 Relative Fiber-Coupled Power (%) z z - optimal ØC = 200 µm 80 60 40 20 0 0 20 40 60 80 100 120 140 160 180 200 r - Radial Displacem ent of Fiber ( µ m ) Figure 4 - Felative Fiber-coupled Power vs. r - Radial Displacement of Fiber 3 Zarlink Semiconductor Inc. MF228 Data Sheet 100 Relative Fiber-Coupled Power (%) 90 80 50% Duty Cycle 70 60 50 DC 40 30 20 Heat Sinked 10 0 0 20 40 60 80 100 120 140 160 180 200 Forward Current (mA) Figure 5 - Relative Fiber-coupled Power vs. Forward Current 300 Max. Electrical Power Dissipation (mV) Note: Maximum junction temperature can be increased to 150° C after additional burn-in and screening. 250 200 150 Infinite Heat Sink No Heat Sink 100 50 0 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 Operating Tem perature ( oC) Figure 6 - Max. Electrical Power Disapation vs. Operating Temperature 4 Zarlink Semiconductor Inc. 150 MF228 Data Sheet 200 Forward Current (mA) 150 100 50 0 0 0.5 1 1.5 2 2.5 3 Forw ard Voltage (V) Figure 7 - Forward Current vs. Forward Voltage 200 Peak Forward Current (mA) 160 a Note: Dashed line indicate that the pow er dissipation may exceed the maximum ratings. b Heat Sinked c 120 d 80 a) b) c) d) 40 0 -60 -40 -20 0 20 40 60 P fiber P fiber P fiber P fiber 80 = const.1450 µ W peak = const.1200 µ W peak = const.950 µ W peak = const.700 µ W peak 100 O Operating Tem perature ( C) Figure 8 - Peak Forward Current vs. Operating Temperature 5 Zarlink Semiconductor Inc. 120 140 For more information about all Zarlink products visit our Web Site at www.zarlink.com Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively “Zarlink”) is believed to be reliable. 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