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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
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 incorporates a PIN detector and digital output IC compatible with CMOS and TTL logic families. 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.
Features
* 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
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 Signaling Rate Link Distance with Extra Low Loss POF Cable Link Distance with 200 m HCS Cable Symbol fS Typ.[1] 15 100 900 Unit Mb/s m m Condition NRZ 10 MBd 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 Signaling Rate Link Distance with Extra Low Loss POF Cable Link Distance with 200 m HCS Cable Pulse Width Distortion PWD Symbol fS Min. DC 0.1 0.1 0.1 0.1 0.1 0.1 -30 -50 Max. 10 50 40 30 500 300 100 +30 +50
Unit Mb/s m
m
ns ns
Condition NRZ +25C 0 to +70C -40 to +85C +25C 0 to +70C -40 to +85C 25 - 75% Duty Cycle Arbitrary Duty Cycle
Note 2 2, 3, 5
2, 4, 5
2
Absolute Maximum Ratings
Parameter Storage and Operating Temperature Receiver Supply Voltage Receiver Average Output Current Receiver Output Power Dissipation Transmitter Peak Forward Input Current Transmitter Average Forward Input Current Transmitter Reverse Input Voltage Lead Soldering Cycle Temp Time Symbol TS,O VCC IO,AVG POD IF,PK IF,AVG VR TSOL Min. -40 -0.5 -16 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 TA VCC IF,PK IF,AV N Min. -40 4.75 20 Max. +85 5.25 90 60 1 Unit C V mA mA Condition <100 mVp-p Noise Note
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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.
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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.
8 GROUND ANODE CATHODE GROUND GROUND 1 2 3 4 5 GROUND SEE NOTE 5
HFBR-1528 Transmitter, Top View
HFBR-1528 Transmitter
Electrical and Optical Characteristics: TA = -40 to +85C unless otherwise noted.
Parameter Symbol PT Min. Typ.[1] -3.5 Max. 0.0 +0.5 +1.3 -9.0 -2.0 -1.5 -0.7 -12.5 -8.5 -8.0 -7.2 -0.40 -0.02 P /T 640 635 0.12 650 660 662 nm/C %/C dB/C nm dBm dBm Units Peak Output Power 1 mm POF, 60 mA Peak Output Power 1 mm POF, 20 mA Peak Output Power 200 m HCS, 60 mA Optical Power Temperature Coefficient Peak Emission Wavelength Peak Wavelength Temperature Coefficient Spectral Width Forward Voltage Forward Voltage Temperature Coefficient Reverse Input Breakdown Voltage Diode Capacitance Transmitter Numerical Aperture Thermal Resistance, Junction to Case 50 Optical Rise Time 50 Optical Fall Time -6.0 -6.9 -7.2 PT -15.6 -16.5 -16.8 PT -16.1 -17.0 -17.3 PT /T dBm
TA (C) +25 0 to +70 -40 to +85 +25 0 to +70 -40 to +85 +25 0 to +70 -40 to +85
Conditions
Note
IF, dc = 60 mA
2, 3 Fig. 2 2, 3 Fig. 2 2, 3 Fig. 2
IF,dc = 20 mA
IF,dc = 60 mA
0 to +70 -40 to +85
Fig. 3
FWHM VF VF /T VBR CO NA jc tr tf 3.0 1.8
21 2.1 -1.8 13 60 0.5 140 13 10 2.65
nm V mV/C V pF IF,dc = -10 A VF = 0 V, f = 1 MHz IF,dc = 60 mA
Fig. 3 Fig. 1 Fig. 1
C/W ns ns 10% to 90%, IF = 60 mA
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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.
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2.5 -40 C
VF - FORWARD VOLTAGE - V
PT - NORMALIZED OUTPUT POWER - dB
10 -40 C 0 -10 -20 -30 -40 85 C 25 C
2.3 2.1 1.9 1.7 1.5
0 C 25 C 70 C
85 C
1
10
100
1
10
100
IF,DC - TRANSMITTER DRIVE CURRENT - mA
IF,DC - TRANSMITTER DRIVE CURRENT - mA
Figure 1. Typical Forward Voltage vs. Drive Current.
HFBR-1528 fig 1
NORMALIZED SPECTRAL OUTPUT POWER
Figure 2. Typical Normalized Optical Power vs. Drive Current.
HFBR-1528 fig 2
1.2
NORMALIZED OUTPUT POWER
1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 610 630 650
-40 C 0 C 25 C 70 C 85 C
VCC = 5.25 V 1.1 VCC = 5.0 V 1.0 0.9 VCC = 4.75 V
0.8 0.7 -40
670
690
-20
0
20
40
60
80
WAVELENGTH (nm)
TEMPERATURE - C
Figure 3. Typical Normalized Optical Spectra.
Figure 4. Typical Normalized Optical Power vs. Temperature (in Recommended Drive Circuit).
VCC
HFBR-1528 fig 3
HFBR-1528 fig 4
C1 R1 R2 C2 HFBR-1528 1 2 3 6 8 1/2 SN75451 5 4 5 8
2 1 0
PWD - ns
VCC = 5.25 V
-1 -2 -3 -4 -5 -40
VCC = 5.0 V VCC = 4.75 V
DATA 7
4
VALUE R1 R2 C1 C2 2 K 47 0.1 F 1.0 F
TOLERANCE 5% 1% 20 % 20 %
-20
0
20
40
60
80
TEMPERATURE - C
Figure 5. Typical Optical Pulse Width Distortion vs. Temperature and Power Supply Voltage (in Recommended Drive Circuit).
HFBR-1528 fig 5
Figure 6. Recommended Transmitter Drive Circuit (IF,on = 60 mA Nominal at TA = 25C). HFBR-1528 fig 6
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.
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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 Parameter Peak POF Sensitivity: Minimum Input for Logic "0" Peak POF Overdrive Limit:Maximum Input for Logic "0" Peak POF Off State Limit: Maximum Input for Logic "1" Peak HCS Sensitivity: Minimum Input for Logic "0" Peak HCS Overdrive Limit: Maximum Input for Logic "0" Peak HCS Off State Limit: Maximum Input for Logic "1" Supply Current High Level Output Voltage Low Level Output Voltage Output Rise Time Output Fall Time Thermal Resistance, Junction to Case Electric Field Immunity Power Supply Noise Immunity Symbol PRL,min PRL,max PRH,max PRL,min PRL,max PRH,max ICC VOH VOL tr tf jc EMAX PSNI
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 GROUND 8 SEE NOTES 5,7 NO CONNECT VCC GROUND VO
HFBR-2528 Receiver, Top View
HFBR-2528 Receiver
Electrical and Optical Characteristics: TA = -40 to +85C, 4.75 V < VCC < 5.25 V, unless otherwise noted.
Min. Typ.[1] -23.0 +5.0 -42 -25.0 -1.0 -2.0 -3.0 +3.0 -44 27 4.7 0.22 12 10 200 8 0.1 0.4 45 0.4 30 30 -23.0 -22.0 -21.5 Max. -21.0 -20.0 -19.5 Unit dBm TA (C) +25 0 to +70 -40 to +85 +25 0 to +70 -40 to +85
Condition 1 mm POF, |PWD| < 30 ns
Note 2,6 2,3, 6 2,6, 8 2,6 2,3, 6 2,6, 8
Fig. 2,4 1,2, 3
+1.0 +0.0 -1.0
dBm dBm dBm dBm dBm mA V V ns ns C/W V/m Vpp
1 mm POF, |PWD| < 30 ns 1 mm POF
+25 0 to +70 -40 to +85 +25 0 to +70 -40 to +85
200 m HCS, |PWD| < 30 ns 200 m HCS, |PWD| < 30 ns 200 m HCS VO = Open IO = -40 A IO = +1.6 mA CL = 10 pF CL = 10 pF Near Field, Electrical Field Source Sine Wave DC - 10 MHz
4.2
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).
5
6 VCC = 5.25 V
30
RECEIVED POWER - dBm
5 4 3 2 1 0 -40 -20
RECEIVED PWD - ns
VCC = 5.0 V
20 10 0 -10 -20 -30 -22
VCC = 4.75 V
0
20
40
60
80
100
-18
-14
-10
-6
-2
2
TEMPERATURE - C
PRL - RECEIVER OPTICAL INPUT POWER - dBm
Figure 1. Typical POF Receiver Overdrive, PRL,max, at 10 MBd, vs. Temperature and Power Supply Voltage.
HFBR-2528 fig 1
Figure 2. Typical POF Receiver Pulse Width Distortion vs. Optical Power at 10 MBd.
HFBR-2528 fig 2
16 15 14
PWD - ns
PWD - ns
-13 -14 -15 -16 -17
13 12 11 10 9 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 VCC - VOLTS
-18 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 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 3
Figure 4. Typical POF Receiver Pulse Width Distortion vs. Power Supply Voltage at Low Optical Power, (-21 dBm,pk, 10 MBd).
HFBR-2528 fig 4
HFBR-2528 5 IC 8 4 3 2 1 C1
R1
VCC
DATA
VALUE R1 C1 2.7 0.1 F
TOLERANCE 5% 20 %
Figure 5. Recommended Receiver Application Circuit.
HFBR-2528 fig 5
6
8 GROUND 3 VCC
AMPLIFIER PIN PHOTODIODE REFERENCE VOLTAGE
FIRST BIT BURST PWD CORRECTION THRESHOLD GENERATOR
COMPARATOR
1 VO, DATA
2 GROUND 5 GROUND
Figure 6. HFBR-2528 Receiver Block Diagram.
HFBR-2528 fig 6
Versatile Link Mechanical Dimensions
PIN NO.1 INDICATOR
Versatile Link Printed Circuit Board Layout Dimensions
7.62 (0.300)
2.0 (0.080)
6.5 (0.255) 10.2 (0.400) 18.9 (0.743) 5.1 (0.200) 7.62 (0.300) 4.2 (0.165)
2.54 (0.100) 1.01 (0.040) DIA. 4 3 2 1
0.64 (0.025)
7.62 (0.300)
5
8 1.85 MIN. (0.073)
7.62 (0.300)
3.81(0.150) MAX. 3.56 (0.140) MIN.
0.51 (0.020)
1.27 (0.050) 2.5 (0.100)
TOP VIEW
0.64 (0.025) DIA.
HFBR-0508 Circuit Board Layout
3.0 (0.118)
1.73 (0.068) ELECTRICAL PIN FUNCTIONS
NOTE: ALL DIMENSIONS IN MM (INCHES). ALL DIMENSIONS 0.25 mm UNLESS OTHERWISE SPECIFIED.
TRANSMITTER PIN NO. HFBR-1528 1 2 3 4 5 8 ANODE CATHODE GROUND* GROUND* GROUND** GROUND**
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.
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
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