HFBR-0508 Series HFBR-1528 Transmitter HFBR-2528 Receiver 10 Megabaud Versatile Link Fiber Optic Transmitter and Receiver for 1 mm POF and 200 m HCS(R) Data Sheet Description Features The HFBR-0508 Series consists of a fiber-optic transmitter and receiver operating at a 650 nm wavelength (red). The HFBR-1528 transmitter is an LED in a low cost plastic housing designed to efficiently couple power into 200 m diameter HCS and 1 mm diameter POF. The HFBR-2528 receiver incor porates a PIN detector and digital output IC compatible with CMOS and TTL logic families. * Data transmission at signal rates of dc to 10 MBd * Up to 50 meters distances with 1 mm Plastic Optical Fiber (POF) * Up to 500 meters distances with 200 m Hard Clad Silica (HCS(R)) * Wide dynamic range receiver allows operation from zero to maximum link distance with a single transmitter drive current * Link distances specified for variations in temperature, power supply, and fiber attenuation * DC coupled receiver with CMOS/TTL output for easy designs: no data encoding or digitizing circuitry required * Pulse width distortion controlled to limit distortion from low duty cycle or burst mode data * High noise immunity * Compatible with Avago's Versatile Link family of connectors, for easy termination of fiber HFBR-0508 links operate from DC to 10 MBd at distances up to 50 meters with 1 mm POF and up to 500 meters with 200 m HCS(R). No minimum link distances are required when using recommended circuits, simplifying design. Versatile Link components can be interlocked (Nplexed together) to minimize space and to provide dual connections with the duplex connectors. Up to eight packages can be interlocked and inserted into a printed circuit board. POF and HCS are available in pre-connectored lengths or can be easily field-terminated. A single transmitter drive current for POF and HCS allows both fibers to be used with a single design. Applications * * * * * * * Industrial control and factory automation Serial field buses Intra-system links; Board-to-Board, Rack-to-Rack Extension of RS-232, RS-485 Elimination of ground loops High voltage isolation Reduces voltage transient susceptibility HCS(R) is a registered trademark of SpecTran Corporation. CAUTION:. It is advised that normal static precautions be taken in handling and assembly of these components to prevent damage and/or degradation which may be induced by ESD. HFBR-0508 Series 10 MBd Data Link Typical Link Performance, TA = +25C Parameter Symbol Signaling Rate fS Link Distance with Extra Low Loss POF Cable Link Distance with 200 m HCS Cable Typ.[1] 15 100 900 Unit Condition Mb/s NRZ m 10 MBd m 10 MBd Note 2 2, 3, 5 2, 4, 5 Specified Link Performance, TA = -40 to +85C, DC to 10 MBd, unless otherwise noted. Parameter Symbol Signaling Rate fS Link Distance with Extra Low Loss POF Cable Link Distance with 200 m HCS Cable Pulse Width Distortion PWD Min. DC 0.1 0.1 0.1 0.1 0.1 0.1 -30 -50 Max. Unit Condition 10 Mb/s NRZ 50 m +25C 40 0 to +70C 30 -40 to +85C 500 m +25C 300 0 to +70C 100 -40 to +85C +30 ns 25 - 75% Duty Cycle +50 ns Arbitrary Duty Cycle Note 2 2, 3, 5 2, 4, 5 2 Absolute Maximum Ratings Parameter Symbol Min. Storage and Operating Temperature TS,O -40 Receiver Supply Voltage VCC -0.5 Receiver Average Output Current IO,AVG -16 Receiver Output Power Dissipation POD Transmitter Peak Forward Input Current IF,PK Transmitter Average Forward Input Current IF,AVG Transmitter Reverse Input Voltage VR Lead Soldering Cycle Temp TSOL Time Max. +85 +5.5 +16 80 90 60 3 +260 10 Unit C V mA mW mA mA V C sec Note 6 7 7 Recommended Operating Conditions Parameter Ambient Temperature Power Supply Voltage Transmitter Peak Forward Current Transmitter Average Forward Current Fanout (7400 Series TTL) Symbol Min. TA -40 VCC 4.75 IF,PK 20 IF,AV N Max. +85 5.25 90 60 1 Unit Condition C V <100 mVp-p Noise mA mA Note 6 Notes: 1. Typical data at +25C, VCC = 5 V. 2. With recommended transmitter and receiver application circuits (60 mA nominal drive current). 3. POF is HFBR-R/EXXYYY plastic (1 mm) optical fiber. Worst case attenuation used (0.23 dB/m from -40C to +85C at 660 nm). 4. HCS is HFBR-H/VXXYYY hard clad silica (200/230 m) fiber. Worst case attenuation is used (10 dB/km from 0C to +70C and 12 dB/km from -40C to +85C at 650 nm). 5. BER 10-9, 223 - 1 PRBS NRZ 10 MBd. 6. For IF,PK > 60 mA, the duty factor must maintain IF,AV 60 mA and pulse with 1 s. 7. 1.6 mm below seating plane. 8 GROUND HFBR-1528 Transmitter The HFBR-1528 transmitter incorporates a 650 nm LED in a light gray, nonconductive plastic housing. The high light output power enables the use of both plastic optical fiber (POF) and Hard Clad Silica (HCS) fiber. This transmitter can be operated up to 10 MBd using a simple driver circuit. The HFBR-1528 is compatible with all Versatile Link connectors. Parameter Symbol 2 CATHODE GROUND 3 GROUND 4 5 GROUND SEE NOTE 5 HFBR-1528 Transmitter, Top View Electrical and Optical Characteristics: TA = -40 to +85C unless otherwise noted. 1 ANODE HFBR-1528 Transmitter Min. Typ.[1] Max. Units TA (C) Conditions Note Peak Output Power PT 1 mm POF, 60 mA -6.0 -3.5 0.0 dBm +25 IF, dc = 60 mA -6.9 +0.5 0 to +70 2, 3 Fig. 2 -7.2 +1.3 -40 to +85 Peak Output Power PT 1 mm POF, 20 mA -15.6 -2.0 IF,dc = 20 mA -16.5 -1.5 0 to +70 2, 3 Fig. 2 -16.8 -0.7 -40 to +85 Peak Output Power PT 200 m HCS, 60 mA -16.1 -8.5 IF,dc = 60 mA -17.0 -8.0 0 to +70 2, 3 Fig. 2 -17.3 -7.2 -40 to +85 -9.0 -12.5 dBm dBm Optical Power TemPT /T perature Coefficient -0.40 %/C -0.02 dB/C Peak Emission P Wavelength 650 640 635 Peak Wavelength Temperature Coefficient /T Spectral Width FWHM Forward Voltage Forward Voltage Temperature Coefficient Reverse Input Breakdown Voltage VF 1.8 VF /T VBR 3.0 660 662 0.12 21 2.1 nm 2.65 -1.8 13 +25 +25 0 to +70 -40 to +85 nm/C nm V NA 0.5 Thermal Resistance, Junction to Case jc 140 V tf 10 Fig. 3 Fig. 1 Fig. 1 IF,dc = -10 A VF = 0 V, f = 1 MHz C/W 50 Optical Rise Time tr 13 ns 50 Optical Fall Time IF,dc = 60 mA mV/C Diode Capacitance CO 60 pF Transmitter Numerical Aperture Fig. 3 4 10% to 90%, IF = 60 mA ns Notes: 1. Typical data are at 25C. 2. Optical power measured at the end of 0.5 meters of 1 mm diameter plastic or 200 m diameter hard clad silica fiber with a large area detector. 3. Minimum and maximum values for PT over temperature are based on a fixed drive current. The recommended drive circuit has temperature compensation which reduces the variation in PT over temperature; refer to Figures 4 and 6. 4. Typical value measured from junction to PC board solder joint for horizontal mount package, HFBR-1528. 5. Pins 5 and 8 are for mounting and retaining purposes, but are electrically connected; pins 3 and 4 are electrically isolated. It is recommended that pins 3, 4, 5 and 8 all be connected to ground to reduce coupling of electrical noise. 6. Refer to the "Plastic Optical Fiber and HCS Fiber Cable and Connectors for Versatile Link" Technical Data Sheet for cable connector options for 1 mm plastic and 200 m HCS optical fiber. VF - FORWARD VOLTAGE - V -40 C 0 C 2.3 25 C 70 C 2.1 1.9 85 C 1.7 1.5 1 10 100 PT - NORMALIZED OUTPUT POWER - dB 2.5 IF,DC - TRANSMITTER DRIVE CURRENT - mA Figure 1. Typical Forward Voltage vs. Drive Current. 10 -40 C 0 25 C -10 85 C -20 -30 -40 1 10 Figure 2. Typical Normalized Optical Power vs. Drive Current. HFBR-1528 fig 1 HFBR-1528 fig 2 1.2 1.4 -40 C 1.2 NORMALIZED OUTPUT POWER NORMALIZED SPECTRAL OUTPUT POWER 100 IF,DC - TRANSMITTER DRIVE CURRENT - mA 0 C 1.0 25 C 0.8 70 C 0.6 85 C 0.4 0.2 0 610 630 650 670 690 VCC = 5.25 V 1.1 VCC = 5.0 V 1.0 0.9 VCC = 4.75 V 0.8 0.7 -40 -20 WAVELENGTH (nm) 0 20 40 60 80 TEMPERATURE - C Figure 3. Typical Normalized Optical Spectra. Figure 4. Typical Normalized Optical Power vs. Temperature (in Recommended Drive Circuit). HFBR-1528 fig 3 HFBR-1528 fig 4 VCC C1 2 R1 C2 R2 1 1 PWD - ns 0 -1 3 6 VCC = 5.0 V 8 -3 DATA 5 7 4 -4 0 4 5 1/2 SN75451 VCC = 4.75 V -20 8 2 VCC = 5.25 V -2 -5 -40 HFBR-1528 20 40 60 80 TEMPERATURE - C Figure 5. Typical Optical Pulse Width Distortion vs. Temperature and Power Supply Voltage (in Recommended Drive Circuit). VALUE TOLERANCE R1 2 K 5% R2 47 1% C1 0.1 F 20 % C2 1.0 F 20 % Figure 6. Recommended Transmitter Drive Circuit (IF,on = 60 mA Nominal at TA = 25C). HFBR-1528 fig 6 HFBR-1528 fig 5 WARNING: WHEN VIEWED UNDER SOME CONDITIONS, THE OPTICAL PORT MAY EXPOSE THE EYE BEYOND THE MAXIMUM PERMISSIBLE EXPOSURE RECOMMENDED IN ANSI Z136.2, 1993. UNDER MOST VIEWING CONDITIONS THERE IS NO EYE HAZARD. HFBR-2528 Receiver The HFBR-2528 receiver consists of a silicon PIN photodiode and digitizing IC to produce a logic compatible output. The IC includes a unique circuit to correct the pulse width distortion of the first bit after a long idle period. This enables operation from DC to 10 MBd with low PWD for arbitrary data patterns. The receiver output is a "push-pull" stage compatible with TTL and CMOS logic. The receiver housing is a dark, conductive plastic, compatible with all Versatile Link connectors. GROUND 5 4 3 IC 2 1 NO CONNECT VCC GROUND VO GROUND 8 SEE NOTES 5,7 HFBR-2528 Receiver, Top View Electrical and Optical Characteristics: TA = -40 to +85C, 4.75 V < VCC < 5.25 V, unless otherwise noted. HFBR-2528 Receiver Parameter Symbol Min. Typ.[1] Max. Unit TA (C) Condition Peak POF Sensitivity: PRL,min -23.0 -21.0 dBm +25 1 mm POF, Minimum Input for -20.0 0 to +70 |PWD| < 30 ns Logic "0" -19.5 -40 to +85 Peak POF Overdrive PRL,max +1.0 +5.0 dBm +25 1 mm POF, Limit:Maximum +0.0 0 to +70 |PWD| < 30 ns Input for Logic "0" -1.0 -40 to +85 Peak POF Off State PRH,max -42 dBm 1 mm POF Limit: Maximum Input for Logic "1" Peak HCS PRL,min -25.0 -23.0 dBm +25 200 m HCS, Sensitivity: Minimum -22.0 0 to +70 |PWD| < 30 ns Input for Logic "0" -21.5 -40 to +85 Peak HCS Overdrive PRL,max -1.0 +3.0 dBm +25 200 m HCS, Limit: Maximum -2.0 0 to +70 |PWD| < 30 ns Input for Logic "0" -3.0 -40 to +85 Peak HCS Off State PRH,max -44 dBm 200 m HCS Limit: Maximum Input for Logic "1" Supply Current ICC 27 45 mA VO = Open High Level Output VOH 4.2 4.7 V IO = -40 A Voltage Low Level Output VOL 0.22 0.4 V IO = +1.6 mA Voltage Output Rise Time tr 12 30 ns CL = 10 pF Output Fall Time tf 10 30 ns CL = 10 pF Thermal Resistance, jc 200 C/W Junction to Case Electric Field EMAX 8 V/m Near Field, Immunity Electrical Field Source Power Supply PSNI 0.1 0.4 Vpp Sine Wave Noise Immunity DC - 10 MHz Note 2,6 Fig. 2,4 2,3, 6 1,2, 3 2,6, 8 2,6 2,3, 6 2,6, 8 6 6 4 5 6 Notes: 1. Typical data are at +25C, VCC = 5.0 V. 2. Input power levels are for peak (not average) optical input levels. For 50% duty cycle data, peak optical power is twice the average optical power. 3. Receiver overdrive (PRL,max) is specified as the limit where |PWD| will not exceed 30 ns. The receiver will be in the correct state (logic "0") for optical powers above PRL,max. However, it may not meet a 30% symbol period PWD if the overdrive limit is exceeded. Refer to Figure 2 for PWD performance at high received optical powers. 4. Typical value measured from junction to PC board solder joint for horizontal mount package, HFBR-2528. 5. Pins 5 and 8 are electrically connected to the conductive housing and are also used for mounting and retaining purposes. It is required that pins 5 and 8 be connected to ground to maintain conductive housing shield effectiveness. 6. In recommended receiver circuit, with an optical signal from the recommended transmitter circuit. 7. Pin 4 is electrically isolated internally. Pin 4 may be externally connected to pin 1 for board layout compatibility with HFBR-25X1, HFBR-25X2 and HFBR-25X4. Otherwise it is recommended pin 4 be grounded as in Figure 5. 8. BER 10E-9, includes a 10.8 dB margin below the receiver switching threshold level (signal to noise ratio = 12). 30 6 5 20 VCC = 5.0 V RECEIVED PWD - ns RECEIVED POWER - dBm VCC = 5.25 V 4 VCC = 4.75 V 3 2 10 0 -10 -20 1 0 -40 -20 0 20 40 60 80 -30 -22 100 -18 -14 -10 -6 -2 2 PRL - RECEIVER OPTICAL INPUT POWER - dBm TEMPERATURE - C Figure 1. Typical POF Receiver Overdrive, PRL,max, at 10 MBd, vs. Temperature and Power Supply Voltage. Figure 2. Typical POF Receiver Pulse Width Distortion vs. Optical Power at 10 MBd. HFBR-2528 fig 2 HFBR-2528 fig 1 16 -13 15 -14 13 PWD - ns PWD - ns 14 12 -15 -16 11 -17 10 9 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 -18 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 VCC - VOLTS VCC - VOLTS Figure 3. Typical POF Receiver Pulse Width Distortion vs. Power Supply Voltage at High Optical Power (0 dBm,pk, 10 MBd). HFBR-2528 fig 4 HFBR-2528 fig 3 HFBR-2528 R1 4 5 3 2 IC 1 8 VALUE TOLERANCE R1 2.7 5% C1 0.1 F 20 % Figure 5. Recommended Receiver Application Circuit. HFBR-2528 fig 5 Figure 4. Typical POF Receiver Pulse Width Distortion vs. Power Supply Voltage at Low Optical Power, (-21 dBm,pk, 10 MBd). VCC C1 DATA 8 GROUND 3 VCC FIRST BIT BURST PWD CORRECTION AMPLIFIER PIN PHOTODIODE COMPARATOR 1 VO, DATA THRESHOLD GENERATOR REFERENCE VOLTAGE 2 GROUND 5 GROUND Figure 6. HFBR-2528 Receiver Block Diagram. HFBR-2528 fig 6 Versatile Link Mechanical Dimensions Versatile Link Printed Circuit Board Layout Dimensions PIN NO.1 INDICATOR 7.62 (0.300) 2.0 (0.080) 6.5 (0.255) 2.54 (0.100) 1.01 (0.040) DIA. 10.2 (0.400) 5.1 (0.200) 18.9 (0.743) 0.64 (0.025) 7.62 (0.300) 5 0.51 (0.020) 1.27 (0.050) 2.5 (0.100) 0.64 (0.025) DIA. 1.73 (0.068) 3.0 (0.118) NOTE: ALL DIMENSIONS IN MM (INCHES). ALL DIMENSIONS 0.25 mm UNLESS OTHERWISE SPECIFIED. ELECTRICAL PIN FUNCTIONS TRANSMITTER PIN NO. HFBR-1528 1 2 3 4 5 8 ANODE CATHODE GROUND* GROUND* GROUND** GROUND** 3 2 1 4.2 (0.165) 7.62 (0.300) 3.81(0.150) MAX. 3.56 (0.140) MIN. 4 RECEIVER HFBR-2528 SIGNAL, VO GROUND VCC (+5 V) GROUND* GROUND** GROUND** * NO INTERNAL CONNECTION, GROUND CONNECTION RECOMMENDED. ** PINS 5 AND 8 CONNECTED INTERNALLY TO EACH OTHER. 7.62 (0.300) 8 1.85 MIN. (0.073) TOP VIEW HFBR-0508 Circuit Board Layout For product information and a complete list of distributors, please go to our website: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries. Data subject to change. Copyright (c) 2007 Avago Technologies Limited. All rights reserved. Obsoletes 5988-5674EN AV02-0909EN - December 7, 2007