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850nm Fast Ethernet Transceiver in 1 x 7 SMD Package
OPF5020
Features
* * * * * * Small Form Factor surface mount package MT-RJ Receptacle Low cost 850 nm LED design Link distance up to 300m at 125Mbps Fully complies with the 100BASE-SX Fast Ethernet Standard (TIA-785) Single +5V power supply
Technical Data
Description
Optek's OPF5020 is a 125Mbps SFF transceiver for use in data communications applications. It utilizes a MT-RJ dual fiber receptacle which features a small size and intuitive latching mechanism design which allows for higher density implementations and easier end-user installation. The transmitter is an 850 nm GaAlAs LED, configured for optimum transceiver performance when used in conjunction with a low-side driver. The coupling efficiency of the LED and optical system allows the device to be used at low current levels, reducing power consumption and increasing system reliability. The receiver consists of a high speed PIN photodiode coupled to a low noise transimpedance amplifier. The receiver output is a low impedance analog source. The analog representation of the received optical input can be easily converted to PECL or TTL levels by external circuitry to be used in digital modes up to 125Mbps, NRZ. Combining the OPF5020 with commercially available LED driver and post amplifier circuits results in a physical layer medium dependent (PMD) sub-layer for communication between nodes of a fiber network. Optek Application Bulletin 217 presents an example PMD design with typical receiver sensitivity of -30dBm at a BER of 2.5 x 10-10, operating full duplex with either a 223-1 or worst case FDDI data pattern. The OPF5020 has been fully tested in accordance with Bellcore 468. See Application Bulletin 219 for full details.
Absolute Maximum Ratings
Storage Temperature Range Operating Temperature Range Soldering Temperature (Soldering Iron) Soldering Temperature (Vapor Phase Reflow) -40 to +85 C 0 to +70 C 260 C for 10 Seconds 235 C for 30 Seconds
Transmitter
Forward Input Current (DC) Reverse Input Voltage 100 mA 3.5 V
Receiver
Supply Voltage Range Output Current -0.5 to 6V 25mA
Notes: 1. All transmitters are subjected to 100% burn-in testing. Test conditions are 96 hours at 60 mA continuous current and 85C ambient temperature. This component is susceptible to damage from electrostatic discharge (ESD). Normal electronic component handling precautions should be observed during handling and assembly of this component to avoid damage or performance degradation. Safety Information: * Class 1 Laser Product (850nm Light Emitting Diode)
2.
3.
*
TUV certified to EN60825-1:1994+A11+A2 and IEC 60950:1999/ EN60950:2000
Optek Technology, Inc.
1215 West Crosby Road
Carrollton, Texas 75006
(972) 323-2200
www.optekinc.com
OPF5020 Technical Data
Transmitter Electrical/Optical Characteristics
Operating Temperature Range 0 to 70C unless otherwise noted; Rx Vcc = 4.75 to 5.25V SYMBOL
VF VR
PARAMETER
Forward Voltage Reverse Input Breakdown Voltage Peak Emission Wavelength Spectral Bandwidth (FWHM) Capacitance Peak Output Optical Power
(1)
MIN
1.3 3.5 820
TYP
1.7 9.0 840
MAX
2.1
UNITS
V V
TEST CONDITION
IF = 60mA IR = 100A IF = 60mA IF = 60mA V = 0 V, f = 1 MHz IF = 60mA IF = 60mA IF = 60mA, No Pre-bias
P
865 60
nm nm pF
CT PT PT/ T tr/tf
Receiver Electrical, Optical & Dynamic Characteristics
Operating Temperature Range 0 to 70C unless otherwise noted; Rx Vcc = 4.75 to 5.25V SYMBOL
RP VNO PN PR(MAX) ZO VODC ICC tr/tf DCD BW
RMS Output Noise Voltage Equivalent Optical Noise Input Power (RMS) Maximum Input Optical Power(3)(4)(5) Output Impedance DC Output Voltage Power Supply Current Rise/Fall Time(3)(4) Duty Cycle Distortion Bandwidth 100 1.00 175
530 -41.0
V dBm W
30 2.1 9 3.5 0.4 125 2.80 15 6.5 1.2 V mA ns ns MHz
Typical values are at TA =25 C, Rx Vcc - Rx Vee = 5.00V Notes: 1. 2. 3. 4. 5. 6. Coupled optical power using a 2 to 5 meter length of 62.5/125 m fiber cable, NA = 0.28 Rise and Fall times shown here are valid for a 50 driver impedance. Rise and fall times obtained using commercial LED driver circuits can be significantly lower. Refer to Application Bulletin 217 for more details. PR is defined as average coupled optical power at the receiver input. Square wave light input: 12.5MHz, tr and tf < 2.0ns, extinction ratio < 10%; AC coupled; 500 Defined with DCD < 1.2ns. Square wave light input: 50MHz, tr and tf < 2.0ns, extinction ratio < 10%; AC coupled; 500 load to Rx Vee. load to Rx Vee.
Optek Technology, Inc.
1215 West Crosby Road
Carrollton, Texas 75006
(972) 323-2200

BW
55 -16.0 -0.008 3.5 6.5 -9.0
dBm dBm/HC ns
Optical Power Temperature Coefficient Rise/Fall Time
(2)
PARAMETER
Responsivity
(3)(4)
MIN
5.3
TYP
7.4
MAX
-12.0
UNITS
mV/W
P=
TEST CONDITION
840nm, PR = 63W
Noise BW = 100MHz; PR = 0W Noise BW =100MHz
f = 50MHz PR = 0W, RL= 500 RL= Open PR = 63W; CL < 15pF PR = 75W -3dB Electrical to Rx Vee
www.optekinc.com
OPF5020 Technical Data
PIN 1
Optek Technology, Inc.
1215 West Crosby Road
Carrollton, Texas 75006
(972) 323-2200
www.optekinc.com
OPF5020 Technical Data
Packaging Information
REEL Material: Antistatic, Type A, 56mm LOKREEL Overall Diameter: 13 inches (325mm) Hub Diameter: 4 inches (100mm) Hub Width: 56.5mm Surface: 1011 ohm/sq (maximum rating) POCKET TAPE Material: Antistatic, HMS-10-13-A Width (W): 56mm Pitch (P): 24mm pocket-to-pocket Sprocket Pitch: 4mm Pocket Depth (KO): 10.92mm COVER: Material: Conductive, Pressure Sensitive Width : 49.5mm OTHER PROPERTIES: Parts per Reel: 200 Leader: 17 Pockets
October 2002 OPF5020, Rev. B Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 West Crosby Road Carrollton, Texas 75006 (972) 323-2200 www.optekinc.com

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