IF-E99

IF E99B 156 Mbps Fiber Optic Red LED 2/20 Description The IF-E99B is a very high-speed red LED housed in a “connector-less” style plastic fiber optic package. The output spectrum of the IF-E99B is produced by a GaAIAs die that peaks at a wavelength of 650 nm, one of the optimal transmission windows of PMMA plastic optical fiber. The device package features an internal micro-lens, and a precision-molded PBT housing to ensure efficient optical coupling with standard 1000 µm core plastic fiber cable. Application Highlights The fast transition times of the IF-E99B make it suitable for high-speed digital data links. Link distances in excess of 75 meters at data rates of 156 Mbps are possible using standard 1000 µm core plastic fiber and an IF-D98 photologic detector. The wide analog bandwidth permits direct modulation at RF frequencies exceeding 70MHz. Drive circuit design for the IF-E99B requires good RF and digital design techniques, but is much simpler than required for laser diodes, making it a good low-cost solution in a variety of high frequency POF analog and digital applications. Applications ➤ PC-to-Peripheral Data Links ➤ Motor Controller Triggering ➤ Ethernet LANs ➤ Medical Instruments Features ➤ Automotive Electronics ➤ Digitized Video and HDTV ◆ No Optical Design Required ➤ Sonet/SDH Transmitters ◆ Mates with Standard 1000 µm Core, 2.2 mm Jacketed Plastic Fiber Cable ➤ Robotics Communications ◆ Mates with 2.2 mm Jacketed Multimode Glass Fiber, 200/230 or 400/430 using Active Device Adapter – 51 0537; 51 0538 ➤ Isolation  from Lightning and Voltage Transients ◆ Internal Micro-lens for Efficient Coupling ◆ Inexpensive Plastic Connector Housing ◆ Connector-Less Fiber Termination and Insertion ◆ Interference-Free Transmission from Light-Tight Housing ◆ Excellent Linearity ◆ Visible Light Output ◆ RoHS compliant Maximum Ratings (TA =25°C) Operating Temperature Range (TOP)...........................-0°to 60°C Storage Temperature Range (TSTG)......................-40° to 85°C Junction Temperature (TJ).........75°C Soldering Temperature (2mm from case bottom) (TS) t ≤ 5 s..........................240°C Reverse Voltage (VR)....................3 V Power Dissipation (PTOT) TA =25°C...........130 mW De-rate Above 25°C.......1.7 mW/°C Forward Current, DC (IF)......50 mA De-rate Above 25°C......0.57 mA/°C Characteristics (TA =25°C) Parameter Symbol Min. Typ. Max. Unit Spectral Bandwidth (FWHM) ∆λ 10 – nm Output Power Coupled into Plastic Fiber (1 mm core diameter). Lens to Fiber distance ≤ .1 mm, 1m SH4001 fiber, IF =per circuit (50% Duty Cycle) IF=20 mA DC PO – Peak Wavelength Output Power Coupled into Glass Fiber (200/230 µm core) Distance Lens to Fiber ≤0.1 mm, 1 meter BC04265-10 fiber, IF=20 mA DC Switching Times (10% to 90% and 90% to 10%) (RL =47Ω, IF =10 mA) Capacitance (VF=0, F=1 MHz) Forward Voltage (IF =30 mA) Cut off frequency λPEAK 640 650 660 nm 355 -4.5 630 -2.0 1120 +0.5 µW dBm 449 796 1415 µW Po – 61.6 -12.14 – µW dBm tr, tf – 3 – ns C0 – 6.5 – pF fc 60 70 – MHz VF – 1.9 2.4 CAUTION: The IF E99B is Class 1B ESD sensitive per testing using the HBM: 1.5k Ohm; 100 pF; +/- 1000V. To minimize risk of damage observe appropriate precautions during handling and processing. I ndustrial F iber O ptics , I nc . • www.i-fiberoptics.com V 156 Mbps Fiber Optic Red LED Relative fiber-coupled optical output power (%) IF E99B (Typ. Ta=25 ˚C, IF=20 mA) 120 100 80 60 40 20 0 600 620 660 640 680 700 Wavelength (nm) 120 100 80 60 40 20 0 -40 -20 0 20 60 40 80 Ambient temperature (ºC) Figure 2. Optical power output versus temperature 3.0 0.40 2.5 0.35 2.0 0.30 1.5 0.25 1.0 0.5 0.0 0.20 ➞ 0 0.15 Above 12 meters add 0.16 dB/meter 2 4 6 8 10 Loss / meter (dB/m) (Measured with the recommended driver circuit) 140 Total Loss Relative to 1 meter (dB) Relative fiber-coupled optical output power (%) Figure 3. Typical interface circuit. (IF = 35mA). ➞ Figure 1. Relative intensity versus wavelength. 12 14 0.10 Fiber Length (m) (IF=20mA) Figure 4. Fiber Loss in GH4001 Application Notes The application circuit given in Figure 3 can be used to drive the IF-E99B for fast applications. Gate U1 represents the circuit being used to drive the IF-E99B. This must be able to supply the desired drive current at the output voltage. Resistor RA supplies most of the drive current for the IF-E99B. The amount of current supplied is IA = (VU1 – Vf) / RA , where Vf is the IF-E99B forward voltage and VU1 is the drive circuits output voltage under load. Resistor RB speeds up the switching time by keeping the voltage across the IF-E99B from going to zero during turn off. It also supplies some of the drive current. The drive current from RB is IB = (VCC – Vf ) / RB , where VCC is the supply voltage. The total drive current to the IF-E99B is IA + IB. Some power is wasted in RB when the IF-E99B is off. Capacitor CA is used to increase the drive current during switching and speed up the turn on and turn off times. It must not be so large as to overdrive the IF-E99B during turn on or drive the voltage negative during turn off. For lower speed applications, only RA is needed and CA and RB can be omitted. Figure 5. Cross-section of fiber optic device. Fiber Termination Instructions – Plastic Optical Fiber 1. Cut off the ends of the optical fiber with a single-edge razor blade or sharp knife. Try to obtain a precise 90-degree angle (square). 2. Insert the fiber through the locking nut and into the connector until the core tip seats against the internal micro-lens. 3. Screw the connector locking nut down to a snug fit, locking the fiber in place. Do not exceed a torque of 0.4 N.m. Glass fiber – Refer to instructions listed on manufacturer’s data sheet for each active device adapter. I ndustrial F iber O ptics , I nc . • www.i-fiberoptics.com IF E99B 156 Mbps Fiber Optic Red LED 0.35 0.51 3.81 BSC 0.18 0.33 MIN 2.5 .014 .020 0.150 BSC .007 .013 MIN .10 MARKING: • XXXXXX - Lot No. • IFE99B - Part No. OR 7.49 7.75 .295 .305 • Blue housing w/double gold dot Figure 6. Case outline. Specifications are believed to be accurate but are subject to change. Industrial Fiber Optics assumes no responsibility for the consequences of using the information provided beyond replacement warranty for products not meeting stated specifications. Industrial Fiber Optics products are not authorized for use in life support applications without written approval from the President of Industrial Fiber Optics Corporation. CAUTION: • To avoid degraded device life due to package stress, do not bend or form leads outside the orientation shown on drawing. • Ensure that solder flux does not migrate into the device and block the optical path, degrading the performance. • If washing the device, liquid may become trapped in the part cavity. Ensure that all potentially corrosive materials are flushed out of the device. I ndustrial F iber O ptics , I nc . • www.i-fiberoptics.com