Product Bulletin OPF560 February 1996 125 MHz Fiber Optic Receiver Types OPF560, OPF561, OPF562 OPF560 VCC VEE OUTPUT OPF561 OUTPUT Features • Low Cost • Data Rates up to 155 MBd • Wide Temperature Range • SMA, ST*, or plastic cap style • Wave Solderable Description The OPF560 series receiver is a low cost solution for high speed fiber optic communication designs. The output of the receiver is an analog, low impedance, emitter follower voltage source capable of driving an amplifier or level translating circuitry. This allows the subsequent circuitry to use the device in either the analog mode or translated to ECL/TTL levels for use in a digital mode at data rates up to 155MBaud. The receiver is comprised of a high speed, low noise, photodiode coupled to a transimpedance amplifier which produces an output voltage proportional to the input light amplitude. This hybrid approach solves many of the problems of high speed data link designs by placing a pre-amplifier close to the photodiode. The amplification of the transimpedance amplifier makes the output signal much less susceptible to EMI. An AC coupled receiver application circuit is shown. Both the 10 ohm resistor and by-pass capacitor are critical. *ST is a registered trademark of AT&T. VEE VCC OPF562 VEE OUTPUT VCC Absolute Maximum Ratings (TA = 25o C unless otherwise noted) Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55o C to +85o C Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +85o C Lead Soldering Temperature (for 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260o C Signal Pin Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to VCC Supply Voltage (VCC - VEE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 to 6.0 V Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 mA This component is susceptible to damage from electrostatic discharge (ESD). Normal static precautions should be taken in handling and assembly of this component to prevent ESD damage or degradation. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 8-108 (972) 323-2200 Fax (972) 323-2396 Types OPF560, OPF561, OPF562 Electrical Characteristics (TA = 25o C unless otherwise noted) -5.45 ≤ Supply Voltage ≤ -4.75, RLOAD = 511 Ω , Fiber Sizes ≤ 100 Microns, N.A. ≤ 0.35 SYMBOL RP VNO PN PARAMETER MIN TYP MAX UNIT Responsivity 5.3 7 0.59 mV Bandwidth Filtered @ 75 MHz, PR = 0 µW 0.7 mV Unfiltered Bandwidth PR = 0 µW -43.0 -41.4 dBm Bandwidth Filtered @ 75 MHz 0.050 0.065 µW 0.40 Equivalent Optical Noise Input Power (RMS) -7.6 dBm TA = 25o C 175 µW TA = 25o C -8.2 dBm -40o C ≤ TA ≤ +85o C 150 µW -40o C ≤ TA ≤ +85o C -3.1 -2.4 V PR = 0 µW 9 15 mA RLOAD = ∞ 3.3 6.3 ns PR = 100 µW, RLOAD = 511 Ω , CLOAD = 5 pF 0.4 2.5 ns PR = 150 µW Peak, Pwidth = 10 ns, 50% Duty Cycle Peak Input Power PR Vodc DC Output Voltage IEE Power Supply Current tr, tf Rise Time, Fall Time (10% to 90%) PWD BW PSRR Pulse Width Distortion -4.2 mV/µW at 840 nm, 50 MHz 11.5 mV/µW at 840 nm, 50 MHz -40o C ≤ TA ≤ +85o C 4.5 RMS Output Noise Voltage 9.6 TEST CONDITION Bandwidth 125 MHz Power Supply Rejection Ratio 20 dB Recommended AC Coupled Receiver Circuit OUTPUT 8-109 -3 dB Electrical @ 10 MHz 8-110 Types OPF560, OPF561, OPF562