HFBR-14XXZ BOARDCOM | Alldatasheet

Document overview

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Technical content

Features

 RoHS compliant  Low-cost transmitters and receivers  Choice of ST, SMA, SC, or FC ports  820 nm wavelength technology  Signal rates up to 160 MBaud  Link distances up to several kilometers  Compatible with 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm Plastic-Clad Silica (PCS) Fiber  Repeatable ST connections within 0.2 dB typical  Unique optical port design for effi cient coupling  Pick and place, and wave solderable  No board-mounting hardware required  Wide operating temperature range –40°C to +85°C  Conductive port option

Applications

 100BASE-SX Fast Ethernet on 850 nm  Media/fi ber conversion, switches, routers, hubs, and NICs on 100BASE-SX  Local area networks  Computer-to-peripheral links and computer monitor links  Digital cross connect links  Central offi ce switch/PBX links  Video links  Modems and multiplexers  Suitable for Tempest systems  Industrial control links

  • 2 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Part Number Guide Available Options HFBR-1402Z HFBR-1404Z HFBR-1412PTZ HFBR-1412PZ HFBR-1412TMZ HFBR-1412TZ HFBR-1412Z HFBR-1414PTZ HFBR-1414PZ HFBR-1414MZ HFBR-1414TZ HFBR-1414Z HFBR-1415PMZ HFBR-1415TZ HFBR-1415Z HFBR-1424Z HFBR-14E4Z HFBR-2402Z HFBR-2406Z HFBR-2412TCZ HFBR-2412TZ HFBR-2412Z HFBR-2416MZ HFBR-2416TCZ HFBR-2416TZ HFBR-2416Z HFBR-2422Z HFBR-24E2Z HFBR-24E6Z AFBR-2408Z AFBR-2418Z AFBR-2418TZ AFBR-2418MZ AFBR-2409Z AFBR-2419Z AFBR-2419TZ AFBR-2419MZ Note: For better readability of the electrical and optical specifi cations, all available options (P , T, C, and M) are covered by the HFBR-x4xxZ product name; exceptions are explicitly noted. Note: AFBR-24x8xZ receivers are designed for data rates from DC up to 50 MBaud. AFBR-24x9xZ supports transmissions from 100 KBaud up to 50 MBaud. Refer to the separate data sheets for details about these digital optical receivers providing CMOS/TTL output logic. A/HFBR - x 4 x x aa Z RoHS Compliant

2 TX, standard power

4 TX, high power

2 RX, 5 MBaud, TTL output

5 TX, high light output power

6 RX, 125 MHz, Analog Output

8 RX, DC to 50 MBaud, Digital Output

9 RX, 100 KBaud to 50 MBaud, Digital Output

1 Transmitter

2 Receiver

0 SMA, housed

1 ST, housed

2 FC, housed

E SC, housed 4 820 nm Transmitter and Receiver products T Threaded port option C Conductive port receiver option M Metal port option P Protection improved option Link Selection Guide For additional information about specifi c links, see the individual link descriptions. The HFBR-1415Z can be used for increased power budget or for lower driving current for the same Data Rates and Link Distances. Data Rate (MBaud)1 Distance (m) Transmitter Receiver Fiber Size (μm) Evaluation Kit DC to 5 1500 HFBR-14x2Z HFBR-24x2Z 62.5/125 HFBR-0410Z 20 2700 HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125 HFBR-0416Z 20 to 32 2200 HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125 HFBR-0416Z DC to 50 2000 HFBR-14x4Z/14x5Z AFBR-24x8xZ 62.5/125 AFBR-0549Z 0.1 to 50 1000 HFBR-14x4Z/14x5Z AFBR-24x9xZ 62.5/125 AFBR-0550Z 20 to 55 1400 HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125 HFBR-0416Z 20 to 125 700 HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125 HFBR-0416Z 20 to 155 600 HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125 HFBR-0416Z 20 to 160 500 HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125 HFBR-0416Z 1. The data rate range in the table refers to the evaluation kit documentation. For an analog receiver, like the HFBR-24x6Z, the data rate range depends on the receiver circuit used.

  • 3 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Options In addition to the various port styles available for the HFBR-0400Z series products, there are also several extra options that can be ordered. To order an option, simply place the corresponding option number at the end of the part number. See page 2 for available options. Option P (Protection improved option)  Designed to withstand electrostatic discharge (ESD) of 2 kV (HBM) to the pins  Available on TX with non-conductive ST and non-conductive threaded ST ports Option T (Threaded Port Option)  Allows ST style port components to be panel mounted  Compatible with all current makes of ST multimode connectors  Mechanical dimensions are compliant with MIL-STD- 83522/13  Maximum wall thickness when using nuts and washers from the HFBR-4411Z hardware kit is 2.8 mm (0.11 inch)  Available on all ST ports Option C (Conductive Port Receiver Option)  Designed to withstand electrostatic discharge (ESD) of 25 kV to the optical port  Signifi cantly reduces eff ect of electromagnetic interference (EMI) on receiver sensitivity  Allows designer to separate the signal and conductive port grounds  Recommended for use in noisy environments  Available on threaded ST port style receivers only  The conductive port is connected to Pins 1, 4, 5, and 8 through the Port Grounding Path Insert Option M (Metal Port Option)  Nickel plated aluminum connector receptacle  Designed to withstand electrostatic discharge (ESD) of 15 kV to the optical port  Signifi cantly reduces eff ect of electromagnetic interference (EMI) on receiver sensitivity  Allows designer to separate the signal and metal port grounds  Recommended for use in very noisy environments  Available on ST and threaded ST ports  The metal port is connected to Pins 1, 4, 5, and 8 through the Port Grounding Path Insert
  • 4 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Application Literature Title Description Application Note 1065 Complete Solutions for IEEE 802.5J Fiberoptic Token Ring Application Note 1121 DC to 32 MBaud Fiberoptic Solutions Application Note 1122 2 to 70 MBaud Fiberoptic Solutions Application Note 1123 20 to 160 MBaud Fiberoptic Solutions Application Note 1137 Generic Printed Circuit Layout Rules Applications Support Guide This section gives the designer information necessary to use the 820 nm Miniature Link Series components to make a functional optical transmission link. Broadcom off ers evaluation kits for hands-on experience with fi ber optic products as well as a wide range of application notes complete with circuit diagrams and board layouts. Furthermore, Broadcom’s application support group is always ready to assist with any design consideration. Evaluation Kits Broadcom off ers fi ber optic kits that facilitate a simple means to evaluate and experience our products. These fi ber optic kits contain all the components and tools required for customers to quickly evaluate and access the value of our products within their respective applications. HFBR-0410Z ST Evaluation Kit: DC to 5 MBaud 820 nm Fiber Optic Eval Kit Contains the following:  One HFBR-1412Z transmitter  One HFBR-2412Z receiver  Eval board  Related literature HFBR-0416Z Evaluation Kit: 125 MBaud 820 nm Fiber Optic Eval Kit Contains the following:  One HFBR-1414Z transmitter  One HFBR-2416Z receiver  Eval board  Related literature AFBR-0549Z Evaluation Kit: DC to 50 MBaud 820 nm Fiber Optic Eval Kit Contains the following:  One HFBR-1414PTZ transmitter  One AFBR-2418TZ receiver  Eval board  Related literature
  • 5 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Package and Handling Information

Package Information

All transmitters and receivers of the 820 nm Miniature Link Series are housed in a low-cost, dual-inline package that is made of high strength, heat resistant, chemically resistant, and UL 94V-O fl ame retardant plastic (UL File #E121562). The transmitters are easily identifi ed by the light grey color connector port. The receivers are easily identifi ed by the dark grey color connector port. (Black color for conductive port). The package is designed for pick and place and wave soldering so it is ideal for high volume production applications. Handling and Design Information Each part comes with a protective port cap or plug covering the optics. Note: This plastic or rubber port cap is made to protect the optical path during assembly. It is not meant to remain on the part for a long period. These caps/plugs will vary by port style. When soldering, it is advisable to leave the protective cap on the unit to keep the optics clean. Good system performance requires clean port optics and cable ferrules to avoid obstructing the optical path. Clean compressed air often is suffi cient to remove particles of dirt; methanol on a cotton swab also works well. Recommended Chemicals for Cleaning/Degreasing 820 nm Miniature Link Products Alcohols: methyl, isopropyl, isobutyl. Aliphatics: hexane, heptane, Other: soap solution, naphtha. Do not use partially halogenated hydrocarbons (such as 1.1.1 trichloroethane), ketones (such as MEK), acetone, chloroform, ethyl acetate, methylene dichloride, phenol, methylene chloride, or N-methylpyrolldone. Also, Broadcom does not recommend the use of cleaners that use halogenated hydrocarbons because of their potential environmental harm. AFBR-0550Z Evaluation Kit: Up to 50 MBaud 820 nm Fiber Optic Eval Kit Contains the following:  One HFBR-1414PTZ transmitter  One AFBR-2419TZ receiver  Eval board  Related literature

  • 6 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet 6.35 (0.25) 2.54 (0.10) 3.81 (0.15) 6.4 (0.25) DIA. 12.7 (0.50) 12.7 (0.50) 22.2 (0.87) 5.1 (0.20) 10.2 (0.40) 3.6 (0.14) 1.27 (0.05) 2.54 (0.10) PINS 1,4,5,8 0.51 X 0.38 (0.020 X 0.015) PINS 2,3,6,7 0.46 (0.018) DIA. 1 3 2 4 PIN NO. 1 INDICATOR 1/4 - 36 UNS 2A THREAD AVAGO COUNTRY OF ORIGIN HFBR-x40xZ TX/RX YYWW 8.2 (0.32) 6.35 (0.25) 12.7 (0.50) 27.2 (1.07) 5.1 (0.20) 10.2 (0.40)3.6 (0.14) 1.27 (0.05) 2.54 (0.10) 1 3 2 4 PIN NO. 1 INDICATOR 2.54 (0.10) 3.81 (0.15) DIA. 12.7 (0.50) 7.0 (0.28) 4.9 (0.193) max. PINS 1,4,5,8 0.51 X 0.38 (0.020 X 0.015) PINS 2,3,6,7 Ø0.46 (0.018) AVAGO COUNTRY OF ORIGIN HFBR-x41xZ TX/RX YYWW Mechanical Dimensions (SMA Port) HFBR-x40xZ Mechanical Dimensions (ST Port) HFBR-x41xZ Dimensions in mm (inches) Dimensions in mm (inches)
  • 7 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Mechanical Dimensions (Threaded ST Port) HFBR-x41xTZ Dimensions in mm (inches) Dimensions in mm (inches) Mechanical Dimensions (Metal ST Port) HFBR-x41xMZ PIN NO. 1 INDICATOR PINS 1,4,5,8 0.51 × 0.38 (0.020 × 0.015) PINS 2,3,6,7 0.46 DIA. (0.018) DIA. 4.9 (0.193) 8.4 (0.33) 6.35 (0.25) 5.1 (0.20) 10.2 (0.40)3.6 (0.14) 1.27 (0.05) 2.54 (0.10) 12.7 (0.50) 27.2 (1.07) 12.7 (0.50) 2.54 (0.10) 3.81 (0.15) DIA.7.0 (0.28) 1 3 2 4 MAX. AVAGO COUNTRY OF ORIGIN HFBR-x41xMZ TX/RX YYWW 5.1 (0.20) 3/8 - 32 UNEF - 2A 8.4 (0.33) 6.35 (0.25) 12.7 (0.50) 27.2 (1.07) 5.1 (0.20) 10.2 (0.40)3.6 (0.14) 1.27 (0.05) 2.54 (0.10) PINS 1,4,5,8 0.51 × 0.38 (0.020 × 0.015) PINS 2,3,6,7 0.46 (0.018) DIA. 1 3 2 4 PIN NO. 1 INDICATOR 2.54 (0.10) 3.81 (0.15) DIA. 12.7 (0.50) 7.1 (0.28) DIA. 7.6 (0.30) 4.9 (0.193) MAX. AVAGO COUNTRY OF ORIGIN HFBR-x41xTZ TX/RX YYWW
  • 8 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Mechanical Dimensions (SC Port) HFBR-x4ExZ Dimensions in mm (inches) M8 x 0.75 6G THREAD (METRIC) 2.54 (0.10) 3.81 (0.15) 7.9 (0.31) 12.7 (0.50) 12.7 (0.50) 5.1 (0.20) 10.2 (0.40)3.6 (0.14) 1 3 2 4 PIN NO. 1 INDICATOR 19.6 (0.77) 2.54 (0.10) PINS 1,4,5,8 0.51 X 0.38 (0.020 X 0.015) PINS 2,3,6,7 Ø 0.46 (0.018) AVAGO COUNTRY OF ORIGIN HFBR-x42xZ TX/RX YYWW Mechanical Dimensions (FC Port) HFBR-x42xZ Dimensions in mm (inches) 28.65 (1.128) 15.95 (0.628) 10.0 (0.394) 12.7 (0.50) 12.7 (0.50) 2.54 (0.10) 3.81 (0.15) 6.35 (0.25) 5.1 (0.20) 10.38 (0.409)3.60 (0.14) 1.27 (0.05) 2.54 (0.10) PINS 1,4,5,8 0.51 × 0.38 (0.020 × 0.015) PINS 2,3,6,7 Ø 0.46 (0.018) 1 3 2 4 PIN NO. 1 INDICATOR AVAGO COUNTRY OF ORIGIN HFBR-x4ExZ TX/RX YYWW
  • 9 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Port Cap Hardware HFBR-4402Z: 500 SMA Port Caps HFBR-4120Z: 500 ST Port Plugs Panel Mount Hardware Dimensions in mm (inches) Cross-Sectional View Figure 1: HFBR-x41xTZ ST Series Cross-Sectional View HOUSING CONNECTOR PORT HEADER EPOXY BACKFILL LED OR DETECTOR IC LENS–SPHERE (ON TRANSMITTERS ONLY) LENS–WINDOW (Each HFBR-4401Z and HFBR-4411Z kit consists of 100 nuts and 100 washers). 7.87 (0.310) 7.87 (0.310) DIA. 1/4 - 36 UNEF - 2B THREAD 1.65 (0.065) TYP. DIA. 6.61 (0.260) DIA. HEX-NUT WASHER 0.14 (0.005) 14.27 (0.563) 12.70 (0.50) DIA. 3/8 - 32 UNEF - 2B THREAD 1.65 (0.065) TYP. DIA. 10.41 (0.410) MAX. DIA. HEX-NUT WASHER 0.46 (0.018) 3/8 - 32 UNEF - 2A THREADING 0.2 IN. WALL WASHER NUT

1 THREAD

HFBR-4401Z: for SMA Ports HFBR-4411Z: for ST Ports

  • 10 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Typical Link Data The following technical data is taken from 5 MBaud and 155 MBaud link using the 820 nm Miniature Link Series. This data is meant to be regarded as an example of typical link performance for a given design and does not call out any link limitations.

5 MBaud Link (HFBR-14xxZ/24x2Z)

Link Performance –40°C to +85°C unless otherwise specifi ed Parameter Symbol Min. Typ. Max. Unit Conditions Reference Optical Power Budget with 50/125 μm fi ber OPB50 4.2 9.6 dB HFBR-14x4Z/24x2Z NA = 0.2 Note 1 Optical Power Budget with 62.5/125 μm fi ber OPB62.5 8.0 15 dB HFBR-14x4Z/24x2Z NA = 0.27 Note 1 Optical Power Budget with 100/140 μm fi ber OPB100 8.0 15 dB HFBR-14x2Z/24x2Z NA = 0.30 Note 1 Optical Power Budget with 200 μm fi ber OPB 200 13.0 20 dB HFBR-14x2Z/24x2Z NA = 0.37 Note 1 Data Rate DC 5 MBaud Note 2 Propagation Delay LOW to HIGH t PLH 72 ns TA = +25°C PR = –21 dBm peak Fiber cable length = 1 m Figures 6, 7, 8 Propagation Delay HIGH to LOW t PHL 46 ns System Pulse Width Distortion t PLH – tPHL 26 ns Bit Error Rate BER 10 -9 Data rate < 5 MBaud PR > –24 dBm peak Notes: 1. Optical Power Board at T A = –40°C to +85°C, VCC = 5.0Vdc, IF ON = 60 mA. PR = –24 dBm peak. 2. Data rate limit is based on these assumptions: a. 50% duty factor modulation, e.g., Manchester I or BiPhase Manchester II b. Continuous data c. PLL Phase Lock Loop demodulation d. TTL threshold.

5 MBaud Logic Link Design

take this behavior into account for the calculations. temperature, aging and other relevant infl uences. All these additional losses reduce the achievable link distance accordingly. For calculating the LED's aging eff ect, an additional loss of about 1.5 dB is recognized. Figure 2. Typical Circuit Confi guration Overdrive: Maximum optical output power of Tx combined with receiver sensitivity of –10 dBm over the entire temperature range. Maximum distance required = 2000 meters by using HFBR-14x4Z/24x2Z logic link with 62.5/125 μm fi ber. Figure 4 shows the “worst-case” drive current of about 43 mA for reaching a distance of about 2000 meters. V, the resistor value “R1” should be choosen to 78.6Ω (3.38 V/43 mA) for reaching driver current of about 43 mA. about 0.70 or –1.55 dB lower than at 60 mA. fi ber end is about –24 dBm, which is equal to the receiver sensitivity over the entire temperature range. For balancing the individual additional system losses, the driver current must be increased accordingly. the pins should not exceed 20 mm.

  • 13 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Figure 8: System Propagation Delay Test Circuit and Waveform Timing Defi nitions PULSE GEN ½ 75451 1N4150 +15V R S 2, 6, 7 RESISTOR VALUE AS NEEDED FOR SETTING OPTICAL POWER OUTPUT FROM RECEIVER END OF TEST CABLE TRANSMITTER P T - FROM 1-METER TEST CABLE INPUT (I F) 7 & 3 + V O15 pF R L +5 V 560 0.1 μF OUTPUT TIMING ANALYSIS EQUIPMENT eg. SCOPE HFBR-2412Z RECEIVER INPUT IF P T V O 50% 50% tPHL MAX 1.5V tPHLT 100 ns tPHL MIN PULSE REPETITION FREQ = 1 MHz 100 ns tPHLT tPHL MAX tPHL MIN R S

155 MBaud Link (HFBR-14x4Z/24x6Z)

Parameter Symbol Min. Typ. [1, 2] Max. Unit Conditions Reference Optical Power Budget with 50/125 μm fi ber OPB50 13.9 dB NA = 0.2 Note 2 Optical Power Budget with 62.5/125 μm fi ber OPB62 17.7 dB NA = 0.27 Optical Power Budget with 100/140 μm fi ber OPB100 17.7 dB NA = 0.30 Optical Power Budget with 200 μm PCS fi ber OPB200 22.0 dB NA = 0.35 Data Format 20% to 80% Duty Factor 20 160 MBaud System Pulse Width Distortion |tPLH − tPHL| 1 ns PR = –7 dBm peak 1 m 62.5/125 μm fi ber Bit Error Rate BER 10 -9 Data rate < 100 MBaud PR > –31 dBm peak Note 2 Notes: 1. Typical data at T A = +25°C, VCC = 5.0Vdc, PECL serial interface. 2. Typical OPB was determined at a probability of error (BER) of 10 -9. Lower probabilities of error can be achieved with short fi bers that have less optical loss.

  • 14 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet HFBR-14x2Z/14x4Z/14x5Z Low-Cost High-Speed Transmitters Housed Product Regulatory Compliance - Targeted Specifi cations Feature Performance Reference Electrostatic Discharge (ESD) Class 1C (>1000V, <2000V) - Human Body Model Note 1, 4 Class 1B (>500V, <1000V) - Human Body Model Note 1, 2 Absolute Maximum Ratings Parameter Symbol Min. Max. Unit Reference Storage Temperature T S –55 +85 °C Operating Temperature T A –40 +85 °C Lead Soldering Cycle Temp Time +260 sec Forward Input Current Peak dc I FPK IFdc 200 100 mA mA Note 3 Reverse Input Voltage VBR 1.8 V

0.3 V Note 4

Notes: 1. ESD capability for all pins HBM (Human Body Model) according JEDEC JESD22-A114. 2. Valid for not protection improved transmitter option 3. For I FPK > 100 mA, the time duration should not exceed 2 ns. 4. Only valid for HFBR-141xPxZ (Protection improved option). ANODE CATHODE 2, 6, 7 PIN FUNCTION NC ANODE CATHODE NC NC ANODE ANODE NC PIN 1 INDICATORBOTTOM VIEW NOTES: 1. PINS 1, 4, 5, AND 8 ARE ELECTRICALLY CONNECTED. 2. PINS 2, 6, AND 7 ARE ELECTRICALLY CONNECTED TO THE HEADER. Note: Parameters “reverse input voltage” and “diode capaci- tance” for “HFBR-141xPxZ” transmitters deviate from the non P-parts. Consistent coupling effi ciency is assured by the double-lens optical system (Figure 1 on page 9). Power coupled into any of the three fi ber types varies less than 5 dB from part to part at a given drive current and temperature. Consistent coupling ef- fi ciency reduces receiver dynamic range requirements, which allows for longer link lengths.

Description

The HFBR-14xxZ fi ber optic transmitter contains an 820 nm AlGaAs emitter capable of effi ciently launching optical power into four diff erent optical fi ber sizes: 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm Plastic-Clad Silica (PCS). This allows the designer fl exibility in choosing the fi ber size. The HFBR- 14xxZ is designed to operate with the Broadcom Ltd. HFBR- 24xxZ fi ber optic receivers. The HFBR-14xxZ transmitter’s high coupling effi ciency al- lows the emitter to be driven at low current levels resulting in low power consumption and increased reliability of the transmitter. The HFBR-14x4Z high power transmitter is opti- mized for small size fi ber and typically can launch -15.8 dBm optical power at 60 mA into 50/125 μm fi ber and -12 dBm into 62.5/125 μm fi ber. The HFBR-14x2Z standard transmitter typically can launch -12 dBm of optical power at 60 mA into 100/140 μm fi ber cable. It is ideal for large size fi ber such as 100/140 μm. The high launched optical power level is useful for systems where star couplers, taps, or inline connectors cre- ate large fi xed losses. For 820 nm Miniature Link transmitters with protection im- proved option “P” a Zener diode parallel to the LED was imple- mented. Therefore, a higher ESD capability could be attained.

  • 15 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Electrical/Optical Specifi cations –40°C to +85°C unless otherwise specifi ed. Parameter Symbol Min. Typ. [2] Max. Unit Conditions Reference Forward Voltage V F 1.48 1.70 2.09 V I F = 60 mA dc Figure 9

1.84 I F = 100 mA dc

Forward Voltage Temperature Coeffi cient ΔVF/ΔT –0.22 mV/K I F = 60 mA dc Figure 9 –0.18 I F = 100 mA dc Reverse Input Voltage V BR 1.8 3.8 V I F = –100 μA dc 0.3 0.7 V I F = –100 μA dc Note 10 Peak Emission Wavelength l P 792 820 865 nm Diode Capacitance C T 55 pF V = 0, f = 1 MHz 70 pF V = 0, f = 1 MHz Note 10 Optical Power Temperature Coeffi cient ΔP T/ΔT –0.006 dB/K I = 60 mA dc –0.010 I = 100 mA dc Thermal Resistance Θ JA 490 K/W Notes 3, 8 14x2Z Numerical Aperture NA 0.49 14x4Z Numerical Aperture NA 0.31 14x2Z Optical Port Diameter D 290 μm Note 4 14x4Z Optical Port Diameter D 150 μm Note 4 HFBR-14x2Z Output Power Measured Out of 1 Meter of Cable Parameter Symbol Min. Typ. Max. Unit Conditions Reference 50/125 μm Fiber Cable P T50 –21.8 –18.8 –16.8 dBm peak T A = +25°C, IF = 60 mA Notes 5, 6, 9 Figure 10 –22.8 –15.8 dBm peak T A = –40°C to +85°C, IF = 60 mA –20.3 –16.8 –14.4 dBm peak T A = +25°C, IF = 100 mA –21.9 –13.8 dBm peak T A = –40°C to +85°C, IF = 100 mA 62.5/125 μm Fiber Cable P T62 –19.0 –16.0 –14.0 dBm peak T A = +25°C, IF = 60 mA –20.0 –13.0 dBm peak T A = –40°C to +85°C, IF = 60 mA –17.5 –14.0 –11.6 dBm peak T A = +25°C, IF = 100 mA –19.1 –11.0 dBm peak T A = –40°C to +85°C, IF = 100 mA 100/140 μm Fiber Cable P T100 –15.0 –12.0 –10 dBm peak T A = +25°C, IF = 60 mA –16.0 –9.0 dBm peak T A = –40°C to +85°C, IF = 60 mA –13.5 –10.0 –7.6 dBm peak T A = +25°C, IF = 100 mA –15.1 –7.0 dBm peak T A = –40°C to +85°C, IF = 100 mA 200 μm PCS Fiber Cable P T200 –10.0 –7.0 –5.0 dBm peak T A = +25°C, IF = 60 mA –11.0 –4.0 dBm peak T A = –40°C to +85°C, IF = 60 mA –8.5 –5.0 –2.6 dBm peak T A = +25°C, IF = 100 mA –10.1 –2.0 dBm peak T A = –40°C to +85°C, IF = 100 mA CAUTION: The small junction sizes inherent to the design of these components increase the components’ susceptibility to damage from electrostatic discharge (ESD). 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.

  • 17 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet All HFBR-14XXZ LED transmitters are classifi ed as IEC 825-1 Accessible Emission Limit (AEL) Class 1 based upon the current proposed draft scheduled to go in to eff ect on January 1, 1997. AEL Class 1 LED devices are considered eye safe. Contact your Broadcom Ltd. sales representative for more information. CAUTION: The small junction sizes inherent to the design of these components increase the components’ susceptibility to damage from electrostatic discharge (ESD). 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. Figure 9: Typical Forward Voltage and Current Characteristics Figure 10: Normalized Typical Transmitter Output vs. Forward Current 100 FORWARD CURRENT (mA) FORWARD VOLTAGE (V) 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 0 1 02 03 04 05 06 07 08 09 0 1 0 0 P(If) -P(60mA) - RELATIVE POWER RATIO FORWARD CURRENT (mA) P(If) - P(60 mA) RELATIVE POWER RATIO (dB) 2.0 3.0 -7.0 -4.0 0.8 -1.0 85°C 25°C -40°C
  • 19 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet HFBR-24x2Z Low-Cost 5 MBaud Receiver

The HFBR-24x2Z fi ber optic receiver is designed to operate with the Broadcom Ltd. HFBR-14xxZ fi ber optic transmitter and 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm Plastic-Clad Silica (PCS) fi ber optic cable. Consistent coupling into the receiver is assured by the lensed optical system (Figure 1). Response does not vary with fi ber size ≤ 0.100 μm. The HFBR-24x2Z receiver incorporates an integrated photo IC containing a photodetector and dc amplifi er driving an open- collector Schottky output transistor. The HFBR-24x2Z is designed for direct interfacing to popular logic families. The absence of an internal pull-up resistor allows the open-collector output to be used with logic families such as CMOS requiring voltage excursions much higher than VCC. Both the open-collector Data output Pin 6 and VCC Pin 2 are referenced to Com Pins 3 and 7. The Data output allows busing, strobing and wired OR circuit confi gurations. The transmitter is designed to operate from a single +5V supply. It is essential that a bypass capacitor (100 nF ceramic) be connected from Pin 2 (VCC) to Pin 3 (circuit common) of the receiver. Absolute Maximum Ratings Parameter Symbol Min. Max. Unit Reference Storage Temperature T S –55 +85 °C Operating Temperature T A –40 +85 °C Lead Soldering Cycle Temp Time +260 sec Note 1 Supply Voltage V CC –0.5 +7.0 V Output Current I O 25 mA Output Voltage V O –0.5 +18.0 V Output Collector Power Dissipation P O AV 40 mW Fan Out (TTL) N 5 Note 2 Notes: 1. 2.0 mm from where leads enter case. 2. 8 mA load (5 x 1.6 mA), RL = 560Ω. Housed Product V cc DATA COMMON 7 & 3 PI N 1 1 3 2 4 1 5 1 7 2 8 1 FUNCTION NC VCC (5V) COMMON NC NC DATA COMMON NC PIN 1 INDICATORBOTTOM VIEW NOTES: 1. PINS 1, 4, 5, AND 8 ARE ELECTRICALLY CONNECTED. 2. PINS 3 AND 7 ARE ELECTRICALLY CONNECTED TO THE HEADER.

  • 20 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet CAUTION: The small junction sizes inherent to the design of these components increase the components’ susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in handling and assembly of these compo- nents to prevent damage and/or degradation which may be induced by ESD. Electrical/Optical Characteristics Parameter Symbol Min. Typ. [3] Max. Unit Conditions Reference High Level Output Current I OH 5 250 μA V O = 18, PR < –40 dBm Low Level Output Voltage V OL 0.4 0.5 V I O = 8 m, PR > –24 dBm High Level Supply Current I CCH 3.5 6.3 mA V CC = 5.25 V, PR < –40 dBm Low Level Supply Current I CCL 6.2 10 mA V CC = 5.25 V, PR > –24 dBm Equivalent NA NA 0.50 Optical Port Diameter D 400 μm Note 4 Dynamic Characteristics –40°C to + 85°C unless otherwise specifi ed; 4.75V ≤ VCC ≤ 5.25V; BER ≤ 10-9 Parameter Symbol Min. Typ. [3] Max. Unit Conditions Reference Peak Optical Input Power Logic Level HIGH PRH –40 0.1 dBm peak μW peak λP = 820 nm Note 5 Peak Optical Input Power Logic Level LOW PRL –25.4 2.9 –9.2 120 dBm peak μW peak TA = +25°C, IOL = 8 mA Note 5 –24.0 4.0 –10.0 100 dBm peak μW peak TA = –40°C to +85°C, IOL = 8 mA Propagation Delay LOW to HIGH t PLHR 65 ns T A = +25°C, PR = –21 dBm, Data Rate = 5 MBaud Note 6 Propagation Delay HIGH to LOW t PHLR 49 ns Notes: 1. 2.0 mm from where leads enter case. 2. 8 mA load (5 x 1.6 mA), RL = 560Ω. 3. Typical data at T A = +25°C, VCC = 5.0VDC. 4. D is the eff ective diameter of the detector image on the plane of the fi ber face. The numerical value is the product of the actual detector diameter and the lens magnifi cation. 5. Measured at the end of 100/140 μm fi ber optic cable with large area detector. 6. Propagation delay through the system is the result of sev eral sequentially-occurring phenomena. Consequently it is a combination of data-rate-limiting eff ects and of transmission-time eff ects. Because of this, the data-rate limit of the system must be described in terms of time diff erentials between delays imposed on falling and rising edges. As the cable length is increased, the propagation delays increase at 5 ns per meter of length. Data rate, as limited by pulse width distortion, is not aff ected by increasing cable length if the optical power level at the receiver is maintained.
  • 21 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet HFBR-24x6Z Low-Cost 125 MHz Receiver

The HFBR-24x6Z fi ber optic receiver is designed to operate with the Broadcom Ltd. HFBR-14xxZ fi ber optic transmitters and 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm Plastic-Clad Silica (PCS) fi ber optic cable. Consistent coupling into the receiver is assured by the lensed optical system (Figure 1). Response does not vary with fi ber size for core diameters of 100 μm or less. The receiver output is an analog signal which allows follow-on circuitry to be optimized for a variety of distance/data rate requirements. Low-cost external components can be used to convert the analog output to logic compatible signal levels for various data formats and data rates up to 175 MBaud. This distance/data rate trade-off results in increased optical power budget at lower data rates which can be used for additional distance or splices. The HFBR-24x6Z receiver contains a PIN photodiode and low noise transimpedance preamplifi er integrated circuit. The HFBR- 24x6Z receives an optical signal and converts it to an analog voltage. The output is a buff ered emitter follower. Because the signal amplitude from the HFBR-24x6Z receiver is much larger than from a simple PIN photodiode, it is less susceptible to EMI, especially at high signaling rates. For very noisy environments, the conductive or metal port option is recommended. A receiver dynamic range of 23 dB over temperature is achievable, assuming a Bit Error Rate (BER) of 10 -9. The frequency response is typically DC to 125 MHz. Although the HFBR-24x6Z is an analog receiver, it is compatible with digital systems. The recommended ac coupled receiver circuit is shown in Figure 14. A 10Ω resistor must be connected between pin 6 and the power supply, and a 100 nF ceramic bypass capacitor must be connected between the power supply and ground. In addition, pin 6 should be fi ltered to protect the receiver from noisy host systems. Refer to AN 1065 for details. Housed ProductFigure 13: Simplifi ed Schematic Diagram CAUTION: The small junction sizes inherent to the design of these components increase the components’ susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in handling and assembly of these compo- nents to prevent damage and/or degradation which may be induced by ESD. Vcc ANALOG SIGNAL VEE 3 & 7 PIN FUNCTION NC SIGNAL V EE NC NC V CC V EE NC PIN 1 INDICATORBOTTOM VIEW NOTES: 1. PINS 1, 4, 5, AND 8 ARE ISOLATED FROM THE INTERNAL CIRCUITRY, BUT ARE CONNECTED TO EACH OTHER. 2. PINS 3 AND 7 ARE ELECTRICALLY CONNECTED TO THE HEADER. BIAS & FILTER CIRCUITS V CC V OUT V EE 3, 7 POSITIVE SUPPLY ANALOG SIGNAL NEGATIVE SUPPLY 5.0 mA 300 pF

  • 23 - HFBR-14xxZ and HFBR-24xxZ Series Data Sheet Dynamic Characteristics –40°C to +85°C; 4.75V ≤ Supply Voltage ≤ 5.25V; R LOAD = 511Ω, C LOAD = 5 pF unless otherwise specifi ed Parameter Symbol Min. Typ. [2] Max. Unit Conditions Reference Rise/Fall Time 10% to 90% t r, tf 3.3 6.3 ns P R = 100 μW peak Figure 17 Pulse Width Distortion PWD 0.4 2.5 ns P R = 150 μW peak Note 8, Figure 16 Overshoot 2 % P R = 5 μW peak, tr = 1.5 ns Note 9 Bandwidth (Electrical) BW 125 MHz –3 dB Electrical Bandwidth - Rise Time Product 0.41 Hz × s Note 10 Notes: 1. 2.0 mm from where leads enter case. 2. Typical specifi cations are for operation at TA = +25°C and VCC = +5V DC. 3. For 200 μm PCS fi bers, typical responsivity will be 6 mV/mW. Other parameters will change as well. 4. Pin #2 should be ac coupled to a load 510Ω. Load capacitance must be less than 5 pF. 5. Measured with a 3 pole Bessel fi lter with a 75 MHz, –3 dB bandwidth. 6. Overdrive is defi ned at PWD = 2.5 ns. 7. D is the eff ective diameter of the detector image on the plane of the fi ber face. The numerical value is the product of the actual detector diameter and the lens magnifi cation. 8. Measured with a 10 ns pulse width, 50% duty cycle, at the 50% amplitude point of the waveform. 9. Percent overshoot is defi ned as: 10. The conversion factor for the rise time to bandwidth is 0.41 since the HFBR-24x6Z has a second order bandwidth limiting characteristic. CAUTION: The small junction sizes inherent to the design of these components increase the components’ susceptibility to damage from electrostatic discharge (ESD). It is advised that normal static precautions be taken in handling and assembly of these compo- nents to prevent damage and/or degradation which may be induced by ESD. Figure 14: Recommended AC-Coupled Receiver Circuit 100%x V VV 100% 100%PK 0.1 μF LOGIC OUTPUT +5V 10Ω 30 pF RLOADS 500Ω MIN. 3 & 7 POST AMP

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