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HFBR-1424Z中文资料

Description

The HFBR-0400Z Series of components is designed to provide cost effective, high performance fiber optic com-munication links for information systems and industrial applications with link distances of up to 2.7 kilometers. With the HFBR-24x6Z, the 125 MHz analog receiver, data rates of up to 160 megabaud are attainable.

Transmitters and receivers are directly compatible with popular “industry-standard” connectors: ST?, SMA, SC and FC. They are completely specified with multiple fiber sizes; including 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm.

The HFBR-14x4Z high power transmitter and HFBR-24x6Z 125 MHz receiver pair up to provide a duplex solution optimized for 100 Base-SX. 100Base-SX is a Fast Ethernet Standard (100 Mbps) at 850 nm on multimode https://www.sodocs.net/doc/463089635.html,plete evaluation kits are available for ST product offerings; including transmitter, receiver, connectored cable, and technical literature. In addition, ST connec-tored cables are available for evaluation.

Features

? RoHS Compliant

? Meets IEEE 802.3 Ethernet and 802.5 Token Ring Stan-dards

? Meets TIA/EIA-785 100Base-SX standard ? Low Cost Transmitters and Receivers ? Choice of ST?, SMA, SC or FC Ports ? 820 nm Wavelength Technology ? Signal Rates up to 160 MBd ? Link Distances up to 2.7 km

? Compatible with 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm HCS? Fiber

? Repeatable ST Connections within 0.2 dB Typical ? Unique Optical Port Design for Efficient Coupling ? Auto-Insertable and Wave Solderable ? No Board Mounting Hardware Required

? Wide Operating Temperature Range -40 °C to +85 °C ? AlGaAs Emitters 100% Burn-In Ensures High Reliabil-ity

Conductive Port Option

Applications

? 100Base-SX Fast Ethernet on 850 nm

? Media/fiber conversion, switches, routers, hubs and NICs on 100Base-SX ? Local Area Networks

? Computer to Peripheral Links ? Computer Monitor Links ? Digital Cross Connect Links ? Central Office Switch/PBX Links ? Video Links

? Modems and Multiplexers ? Suitable for Tempest Systems ?

Industrial Control Links

ST? is a registered trademark of AT&T.

HCS? is a registered trademark of the OFS Corporation.

HFBR-0400Z, HFBR-14xxZ and HFBR-24xxZ Series

Low Cost, Miniature Fiber Optic Components with ST?, SMA, SC and FC Ports

Data Sheet

HFBR-1402Z HFBR-1414Z HFBR-1412TMZ HFBR-2406Z HFBR-2412Z HFBR-2416TZ HFBR-1404Z HFBR-1414MZ HFBR-14E4Z HFBR-2412TCZ HFBR-2412TZ HFBR-2416TCZ

HFBR-1412Z HFBR-1414TZ HFBR-1415Z HFBR-2416Z HFBR-2422Z HFBR-1412TZ

HFBR-1424Z

HFBR-2402Z

HFBR-2416MZ

HFBR-24E6Z

Data rate (MBd)

Distance (m)

Transmitter

Receiver

Fiber Size (μm)

Evaluation Kit

51500HFBR-14x2Z HFBR-24x2Z 200 HCS N/A 52000HFBR-14x4Z/14x5Z HFBR-24x2Z 62.5/125HFBR-0410Z 202700HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125HFBR-0414Z 322200HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125HFBR-0414Z 551400HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125HFBR-0414Z 125700HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125HFBR-0416Z 155600HFBR-14x4Z/14x5Z HFBR-24x6Z 62.5/125HFBR-0416Z 160

500

HFBR-14x4Z/14x5Z

HFBR-24x6Z

62.5/125

HFBR-0416Z

For additional information on specific links see the following individual link descriptions. Distances measured over temperature range from 0 to +70 °C.

The HFBR-1415Z can be used for increased power budget or for lower driving current for the same Data-Rates and Link-Distances.

Link Selection Guide

Available Options

HFBR-0400Z Series Part Number Guide

HFBR-x4xx aa Z

RoHS Compliant

Threaded port option

C Conductive port receiver option M

Metal port option

2TX, stadnard power 4TX, high power 2RX, 5 MBd, TTL output 5TX, high light output power 6

RX, 125 MHz, Analog Output

1Transmitter 2

Receiver

0SMA, housed 1ST, housed 2FC, housed E

SC, housed

820 nm Transmitter and Receiver products

Title

Description

HFBR-0400Z Series Reliability Data Transmitter & Receiver Reliability Data

Application Bulletin 78Low Cost Fiber Optic Links for Digital Applications up to 155 MBd Application Note 1038Complete Fiber Solutions for IEEE 802.3 FOIRL, 10Base-FB and 10Base-FL Application Note 1065Complete Solutions for IEEE 802.5J Fiberoptic Token Ring Application Note 1073HFBR-0219 Test Fixture for 1x9 Fiber Optic Transceivers Application Note 1086Optical Fiber Interconnections in Telecommunication Products Application Note 1121DC to 32 MBd Fiberoptic Solutions Application Note 1122 2 to 70 MBd Fiberoptic Solutions Application Note 112320 to 160 MBd Fiberoptic Solutions Application Note 1137Generic Printed Circuit Layout Rules

Application Note 1383

Cost Effective Fiber and Media Conversion for 100Base-SX

Applications Support Guide

This section gives the designer information necessary to use the HFBR-0400Z series components to make a func-tional fiber optic transceiver.

Avago Technologies offers a wide selection of evaluation kits for hands-on experience with fiber optic products as well as a wide range of application notes complete with circuit diagrams and board layouts.

Furthermore, Avago Technologies application support group is always ready to assist with any design consid-eration.

Application Literature

HFBR-0400Z Series Evaluation Kits

HFBR-0410Z ST Evaluation Kit

Contains the following:

? One HFBR-1412Z transmitter

? One HFBR-2412Z five megabaud TTL receiver

? Three meters of ST connectored 62.5/125 μm fiber optic cable with low cost plastic ferrules.

? Related literature

HFBR-0414Z ST Evaluation Kit

Includes additional components to interface to the trans-mitter and receiver as well as the PCB to reduce design time. Contains the following:

? One HFBR-1414TZ transmitter

? One HFBR-2416TZ receiver

? Three meters of ST connectored 62.5/125 μm fiber optic cable

? Printed circuit board

? ML-4622 CP Data Quantizer

? 74ACTllOOON LED Driver

? LT1016CN8 Comparator

? 4.7 μH Inductor

? Related literature

HFBR-0400Z SMA Evaluation Kit

Contains the following:

? One HFBR-1402Z transmitter

? One HFBR-2402Z five megabaud TTL receiver

? Two meters of SMA connectored 1000 μm plastic opti-cal fiber

? Related literature

HFBR-0416Z Evaluation Kit

Contains the following:

? One fully assembled 1x9 transceiver board for 155 MBd evaluation including:

- HFBR-1414Z transmitter

- HFBR-2416Z receiver

- circuitry

? Related literature

Ultem? is a registered Trademark of the GE corporation.Package and Handling Information

Package Information

All HFBR-0400Z Series transmitters and receivers are housed in a low-cost, dual-inline package that is made of high strength, heat resistant, chemically resistant, and UL 94V-O flame retardant ULTEM? plastic (UL File #E121562). The transmitters are easily identified by the light grey color connector port. The receivers are easily identified by the dark grey color connector port. (Black color for conductive port). The package is designed for auto-insertion 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 cov-ering the optics. 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 sufficient to remove parti-cles of dirt; methanol on a cotton swab also works well. Recommended Chemicals for Cleaning/Degreasing HFBR-0400Z Products

Alcohols: methyl, isopropyl, isobutyl.

Aliphatics: hexane, heptane, Other: soap solution, naph-tha.

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, Avago Technologies does not recommend the use of cleaners that use halogenated hydrocarbons because of their potential environmental harm.

0.51 X 0.38PINS 2,3,6,70.46(0.018)

DIA.

0.51 X 0.38PINS 2,3,6,70.46(0.018)

DIA.Mechanical Dimensions - SMA Port HFBR-x40xZ

Mechanical Dimensions - ST Port HFBR-x41xZ

0.51 X 0.38PINS 2,3,6,70.46(0.018)

DIA.

Mechanical Dimensions - Threaded ST Port HFBR-x41xTZ

Mechanical Dimensions - FC Port HFBR-x42xZ

Mechanical Dimensions - SC Port HFBR-x4ExZ

(Each HFBR-4401Z and HFBR-4411Z kit consists of 100 nuts and 100 washers).

1.65TYP.DIA.

6.61

(0.260)

DIA.

HEX-NUT

WASHER

TYP.DIA.

WASHER

PART

HFBR-4401Z: for SMA Ports HFBR-4411Z: for ST Ports Port Cap Hardware

HFBR-4402Z: 500 SMA Port Caps

HFBR-4120Z: 500 ST Port Plugs (120 psi)

Panel Mount Hardware

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 T (Threaded Port Option)

? Allows ST style port components to be panel mount-ed.

? 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 wash-ers 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 port

? Significantly reduces effect of electromagnetic inter-ference (EMI) on receiver sensitivity

? Allows designer to separate the signal and conductive port grounds

? Recommended for use in noisy environments

? Available on SMA and threaded ST port style receivers only

Option M (Metal Port Option)

? Nickel plated aluminum connector receptacle

? Designed to withstand electrostatic discharge (ESD) of 15 kV to the port

? Significantly reduces effect of electromagnetic inter-ference (EMI) on receiver sensitivity

? Allows designer to separate the signal and metal port grounds

? Recommended for use in very noisy environments ? Available on SMA, ST, and threaded ST ports

Typical Link Data HFBR-0400Z Series Description

The following technical data is taken from 4 popular links using the HFBR-0400Z series: the 5 MBd link, Ethernet 20 MBd link, Token Ring 32 MBd link, and the corresponds to transceiver solutions combining the HFBR-0400Z se-ries components and various recommended transceiver design circuits using off-the-shelf electrical components. This data is meant to be regarded as an example of typi-cal link performance for a given design and does not call out any link limitations. Please refer to the appropriate application note given for each link to obtain more in-formation.

Parameter

Symbol

Min.

Typ.

Max.Units

Conditions

Reference

Optical Power Budget with 50/125 μm fiber OPB 50 4.2

9.6dB HFBR-14x4Z/24x2Z NA = 0.2

Note 1Optical Power Budget with 62.5/125 μm fiber OPB 62.58.0

15dB HFBR-14x4Z/24x2Z NA = 0.27Note 1Optical Power Budget with 100/140 μm fiber OPB 1008.0

15dB HFBR-14x2Z/24x2Z NA = 0.30Note 1Optical Power Budget with 200 μm fiber OPB 200

HFBR-14x2Z/24x2Z NA = 0.37

Note 1Date Rate Synchronous dc 5MBd Note 2Asynchronous dc

2.5

MBd Note 3,Fig 7

Propagation Delay LOW to HIGH t PLH 72ns T A = +25 °C

P R = -21 dBm peak

Fiber cable length = 1 m

Figs 6, 7, 8

Propagation Delay HIGH to LOW t PHL 46ns System Pulse Width Distortion t PLH - t PHL 26

Bit Error Rate

BER

10-9

Data rate <5 Bd P R > -24 dBm peak Notes:

1. OPB at T A = -40 to +85 °C, V CC = 5.0 V dc, IF ON = 60 mA. P R = -24 dBm peak.

2. Synchronous 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.

3. Asynchronous data rate limit is based on these assumptions: a) NRZ data; b) arbitrary timing-no duty factor restriction; c) TTL threshold.

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

Link Performance -40 °C to +85 °C unless otherwise specified

5 MBd Logic Link Design

If resistor R1 in Figure 2 is 70.4 W , a forward current I F of 48 mA is applied to the HFBR-14x4Z LED transmitter. With I F = 48 mA the HFBR-14x4Z/24x2Z logic link is guaranteed to work with 62.5/125 μm fiber optic cable over the entire range of 0 to 1750 meters at a data rate of dc to 5 MBd, with arbitrary data format and pulse width distortion typ-ically less than 25%. By setting R 1 = 115 W , the transmitter can be driven with I F = 30 mA, if it is desired to economize on power or achieve lower pulse distortion.

The following example will illustrate the technique for selecting the appropriate value of I F and R 1.

Figure 2. Typical Circuit Configuration.

NOTE:

IT IS ESSENTIAL THAT A BYPASS CAPACITOR (0.01 μF TO 0.1 μF CERAMIC) BE CONNECTED FROM PIN 2 TO PIN 7 OF THE RECEIVER.TOTAL LEAD LENGTH BETWEEN BOTH ENDS OF THE CAPACITOR AND THE PINS SHOULD NOT EXCEED 20 MM.

Maximum distance required = 400 meters. From Figure 3

the drive current should be 15 mA. From the transmitter data V F = 1.5 V (max.) at I F = 15 mA as shown in Figure 9.The curves in Figures 3, 4, and 5 are constructed assum-ing no inline splice or any additional system loss. Should the link consists of any in-line splices, these curves can still be used to calculate link limits provided they are shifted by the additional system loss expressed in dB. For example, Figure 3 indicates that with 48 mA of transmit-ter drive current, a 1.75 km link distance is achievable with 62.5/125 μm fiber which has a maximum attenua-tion of 4 dB/km. With 2 dB of additional system loss, a 1.25 km link distance is still achievable.

=-=-=233 ?

R mA 15I 1.5V

5V V V R 1F F CC 1

10L O G (I /I o ) N O R M A L I Z E D T R A N S M I T T E R C U R R E N T (d B )

0-1-2-3-4-5-6-7-8-9

-10-11

I F T R A N S M I T T E R F O R W A R D C U R R E N T (m A )

6050403020

LINK LENGTH (km)

10L O G (I /I o ) N O R M A L I Z E D T R A N S M I T T E R C U R R E N T (d B )

-1-2-3-4-5-6-7-8-9

-10-11

I F T R A N S M I T T E R F O R W A R D C U R R E N T (m A )

6050403020

LINK LENGTH (km)

-1-2-3

-4-5-6

0.4

0.8

1.2

1.6

10 L O G (t /t o ) N O R M A L I Z E D T R A N S

M I T T E R C U R R E N T (d B )

LINK LENGTH (km)

I F – T R A N S M I T T E R F O R W A R D C U R R E N T – (m A )

4030

75-22-21-20-19-18-17-16-15-14-13-12

P R – RECEIVER POWER – dBm

t P L H O R t P H L P R O P O G A T

I O N D E L A Y –n s

656055504540353025

55-22-21-20-19-18-17-16-15-14-13-12

P R – RECEIVER POWER – dBm

t D – N R Z D I S T O R T I O N – n s

504540353025

Figure 5. HFBR-14x4Z/HFBR-24x2Z Link Design Limits with 50/125 μm Cable.

Figure 6. Propagation Delay through System with One Meter of Cable.

Figure 4. HFBR-14x2Z/HFBR-24x2Z Link Design Limits with 100/140 μm Cable.

Figure 3. HFBR-1414Z/HFBR-2412Z Link Design Limits with 62.5/125 μm Cable.

Figure 7. Typical Distortion of Pseudo Random Data at 5 Mb/s.

Parameter

Symbol Typ [1, 2]

Units

Conditions

Receiver Sensitivity -34.4dBm average 20 MBd D2D2 hexadecimal data 2 km 62.5/125 μm fiber Link Jitter 7.567.03ns pk-pk ns pk-pk ECL Out Receiver TTL Out Receiver

Transmitter Jitter 0.763ns pk-pk 20 MBd D2D2 hexadecimal data Optical Power P T -15.2dBm average 20 MBd D2D2 hexadecimal data-Peak I F,ON = 60 mA LED Rise Time t r 1.30ns 1 MHz square wave input

LED Fall Time t f 3.08ns Mean Difference |t r - t f | 1.77ns

Bit Error Rate BER

10-10Output Eye Opening 36.7ns At AUI receiver output

Data Format 50% Duty Factor

MBd

Figure 8. System Propagation Delay Test Circuit and Waveform Timing Definitions.

Notes:

1. Typical data at T A = +25 °C, V CC = 5.0 V dc.

2. Typical performance of circuits shown in Figure 1 and Figure 3 of AN-1038 (see applications support section).

Ethernet 20 MBd Link (HFBR-14x4Z/24x6Z)(refer to Application Note 1038 for details)Typical Link Performance

Parameter

Symbol

Min

Typ [1, 2]

Max Units

Conditions

Ref

Optical Power Budget with 50/125 μm fiber OPB 507.913.9dB NA = 0.2Note 2

Optical Power Budget with 62.5/125 μm fiber OPB 6211.717.7dB NA = 0.27Optical Power Budget with 100/140 μm fiber OPB 10011.717.7dB NA = 0.30Optical Power Budget with 200 μm HCS fiber OPB 200

16.022.0

NA = 0.35

Data Format 20% to 80% Duty Factor 1

175

MBd System Pulse Width Distortion |t PLH - t PHL |1ns

PR = -7 dBm peak1 m 62.5/125 μm fiber 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, V CC = 5.0 V dc, 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 fibers that have less optical loss.

155 MBd Link (HFBR-14x4Z/24x6Z)(refer to Application Bulletin 78 for details)Typical Link Performance

Parameter

Symbol Typ [1, 2]

Units

Conditions

Receiver Sensitivity -34.1dBm average 32 MBd D2D2 hexadecimal data 2 km 62.5/125 μm fiber Link Jitter 6.915.52ns pk-pk ns pk-pk ECL Out Receiver TTL Out Receiver

Transmitter Jitter

0.823ns pk-pk 32 MBd D2D2 hexadecimal data Optical Power Logic Level “0”P T ON -12.2dBm peak

Transmitter TTL in I F ON = 60 mA,I F OFF = 1 mA

Optical Power Logic Level “1”P T OFF -82.2LED Rise Time t r 1.3ns 1 MHz square wave input

LED Fall Time t f 3.08ns Mean Difference |t r - t f | 1.77ns

Bit Error Rate

BER

10-10Data Format 50% Duty Factor

MBd

Notes:

1. Typical data at T A = +25 °C, V CC = 5.0 V dc.

2. Typical performance of circuits shown in Figure 1 and Figure 3 of AN-1065 (see applications support section)

Token Ring 32 MBd Link (HFBR-14x4Z/24x6Z)(refer to Application Note 1065 for details)Typical Link Performance

HFBR-14x2Z/14x4Z Low-Cost High-Speed Transmitters Description

The HFBR-14xxZ fiber optic transmitter contains an 820 nm AlGaAs emitter capable of efficiently launching opti-cal power into four different optical fiber sizes: 50/125 μm, 62.5/125 μm, 100/140 μm, and 200 μm HCS?. This allows the designer flexibility in choosing the fiber size. The HFBR-14xxZ is designed to operate with the Avago Technologies HFBR-24xxZ fiber optic receivers.

The HFBR-14xxZ transmitter’s high coupling efficiency allows the emitter to be driven at low current levels resulting in low power consumption and increased reli-ability of the transmitter. The HFBR-14x4Z high power transmitter is optimized for small size fiber and typically can launch -15.8 dBm optical power at 60 mA into 50/125 μm fiber and -12 dBm into 62.5/125 μm fiber. The HFBR-14x2Z standard transmitter typically can launch -12 dBm of optical power at 60 mA into 100/140 μm fiber cable. It is ideal for large size fiber such as 100/140 μm. The high launched optical power level is useful for systems where star couplers, taps, or inline connectors create large fixed losses.

Consistent coupling efficiency is assured by the double-lens optical system (Figure 1). Power coupled into any of the three fiber types varies less than 5 dB from part to part at a given drive current and temperature. Consistent coupling efficiency reduces receiver dynamic range re-quirements which allows for longer link lengths.

Housed Product

Parameter

Symbol

Min

Max

Units

Reference

Storage Temperature T S -55+85°C Operating Temperature T A

-40

+85°C Lead Soldering Cycle Temp Time

+26010°C sec Forward Input Current Peak dc

I FPK I Fdc 200100mA mA Note 1

Reverse Input Voltage

VBR

1.8

TO THE HEADER.

ANODE CATHODE

BOTTOM VIEW

Feature

Test Method

Performance

Electrostatic Discharge (ESD)

MIL-STD-883 Method 3015

Class 1B (>500, <1000 V) - Human Body Model

Absolute Maximum Ratings

Regulatory Compliance - Targeted Specifications

Unhoused Product

Electrical/Optical Specifications -40 °C to +85 °C unless otherwise specified.

Parameter Symbol Min Typ2Max Units Conditions Reference

Forward Voltage V F 1.48 1.70

1.84

2.09V IF = 60 mA dc

IF = 100 mA dc

Figure 9

Forward Voltage Temperature Coefficient D V F/D T-0.22

-0.18

mV/°C IF = 60 mA dc

IF = 100 mA dc

Figure 9

Reverse Input Voltage V BR 1.8 3.8V IF = 100 μA dc Peak Emission Wavelength l P792820865nm

Diode Capacitance C T55pF V = 0, f = 1 MHz

Optical Power Temperature Coefficient D P T/D T-0.006

-0.010

dB/°C I = 60 mA dc

I = 100 mA dc

Thermal Resistance q JA260°C/W Notes 3, 8 14x2Z Numerical Aperture NA0.49

14x4Z Numerical Aperture NA0.31

14x2Z Optical Port Diameter D290μm Note 4 14x4Z Optical Port Diameter D150μm Note 4

Parameter Symbol Min Typ Max Units Conditions Reference

50/125 m m Fiber Cable P T50-21.8-18.8-16.8dBm peak T A = +25 °C,

I F = 60mA dc Notes 5, 6, 9

-22.8-15.8

-20.3-16.8-14.4T A = +25 °C,

I F = 100mA dc

-21.9-13.8

62.5/125 m m Fiber Cable P T62-19.0-16.0-14.0dBm peak T A = +25 °C,

I F = 60mA dc

-20.0-13.0

-17.5-14.0-11.6T A = +25 °C,

I F = 100mA dc

-19.1-11.0

100/140 m m Fiber Cable P T100-15.0-12.0-10dBm peak T A = +25 °C,

I F = 60mA dc

-16.0-9.0

-13.5-10.0-7.6T A = +25 °C,

I F = 100mA dc

-15.1-7.0

200 m m HCS Fiber Cable P T200-10.0-7.0-5.0dBm peak T A = +25 °C,

I F = 60mA dc

-11.0-4.0

-8.5-5.0-2.6T A = +25 °C,

I F = 100mA dc

-10.1-2.0

HFBR-14x2Z Output Power Measured Out of 1 Meter of Cable

HFBR-14x4Z Output Power Measured out of 1 Meter of Cable

Parameter

Symbol

Min

Typ 2

Max

Units

Conditions

Reference

50/125 μm Fiber Cable NA = 0.2

P T50

-18.8-19.8-15.8-13.8-12.8dBm peak

T A = +25 °C,I F = 60mA dc Notes 5, 6, 9

-17.3-18.9

-13.8-11.4-10.8T A = +25 °C,I F = 100 mA dc

62.5/125 μm Fiber Cable NA = 0.275

P T62

-15.0-16.0-12.0-10.0-9.0dBm peak T A = +25 °C,I F = 60mA dc -13.5-15.1

-10.0-7.6-7.0T A = +25 °C,I F = 100 mA dc

100/140 μm Fiber Cable NA = 0.3

P T100

-11.5-12.5-8.5-6.5-5.5dBm peak T A = +25 °C,I F = 60mA dc -10.0-11.6

-6.5-4.1-3.5T A = +25 °C,I F = 100 mA dc

200 μm HCS Fiber Cable NA = 0.37

P T200

-7.5-8.5-4.5-2.5-1.5dBm peak T A = +25 °C,I F = 60mA dc -6.0-7.6

-2.5

-0.10.5

T A = +25 °C,I F = 100 mA dc

Parameter

Symbol

Min

Typ

Max

Units

Conditions

200μm Fiber Cable NA = 0.37

PT200-6.0-3.60.0dBm peak T A = +25°C, I F = 60mA -7.0 1.0dBm peak T A = -40°C to 85°C, I F = 60mA 62.5/125μm Fiber Cable NA = 0.275

PT62-12.0-10.5-8.0dBm peak T A = +25°C, I F = 60mA -13.0 -7.0dBm peak T A = -40°C to 85°C, I F = 60mA 50/125μm Fiber Cable NA = 0.2

PT50-16.5-14.3-11.5dBm peak T A = +25°C, I F = 60mA

-17.5

-10.5

dBm peak

T A = -40°C to 85°C, I F = 60mA

Parameter

Symbol

Min Typ 2

Max

Units

Conditions

Reference

Rise Time, Fall Time (10% to 90%)t r , t f 4.0 6.5

nsec

No pre-bias I F = 60 mA Figure 12Note 7Rise Time, Fall Time (10% to 90%)t r , t f 3.0nsec I F = 10 to 100 mA

Note 7, Figure 11Pulse Width Distortion

PWD

0.5

nsec

Figure 11

14x2Z/14x4Z/14x5Z Dynamic Characteristics

HFBR-14x5Z Output Power Measured out of 1 Meter of Cable

Notes:

1. For I FPK > 100 mA, the time duration should not exceed 2 ns.

2. Typical data at T A = +25 °C.

3. Thermal resistance is measured with the transmitter coupled to a connector assembly and mounted on a printed circuit board.

4. D is measured at the plane of the fiber face and defines a diameter where the optical power density is within 10 dB of the maximum.

5. P T is measured with a large area detector at the end of 1 meter of mode stripped cable, with an ST? precision ceramic ferrule (MILSTD- 83522/13) for HFBR-1412Z/1414Z, and with an SMA 905 precision ceramic ferrule for HFBR-1402Z/1404Z.

6. When changing mW to dBm, the optical power is referenced to 1 mW (1000 mW). Optical Power P (dBm) = 10 log P (mW)/1000 mW.

7. Pre-bias is recommended if signal rate >10 MBd, see recommended drive circuit in Figure 11.

8. Pins 2, 6 and 7 are welded to the anode header connection to minimize the thermal resistance from junction to ambient. To further reduce the thermal resistance, the anode trace should be made as large as is consistent with good RF circuit design.

9. Fiber NA is measured at the end of 2 meters of mode stripped fiber, using the far-field pattern. NA is defined as the sine of the half angle, determined at 5% of the peak intensity point. When using other manufacturer’s fiber cable, results will vary due to differing NA values and specification methods.

Recommended Drive Circuits

The circuit used to supply current to the LED transmitter can significantly influence the optical switching charac-teristics of the LED. The optical rise/fall times and propa-gation delays can be improved by using the appropriate circuit techniques. The LED drive circuit shown in Figure 11 uses frequency compensation to reduce the typical rise/fall times of the LED and a small pre-bias voltage to minimize propagation delay differences that cause pulse-width distortion. The circuit will typically produce rise/fall times of 3 ns, and a total jitter including pulse-width dis-tortion of less than 1 ns. This circuit is recommended for applications requiring low edge jitter or high-speed data transmission at signal rates of up to 155 MBd. Component values for this circuit can be calculated for different LED drive currents using the equations shown below. For additional details about LED drive circuits, the reader is encouraged to read Avago Technologies Application Bul-letin 78 and Application Note 1038.

V)1.84( 9 Figure from obtained be can V :

100mA I for Example )

(R ps 2000

C(pF))3(R R R R 1R )( R 3.97

R 21R (A) I 1.6V)

V 3.97(V )V (V R F ON F X1EQ2X3X2X1EQ2Y X1ON F F CC F CC Y

X4==?====-=?)

--+-pF

16911.8ps

2000C 32.4 (10.8) 3 R R R 10.8 1 - 11.8 R 11.83.97

93.5

21R 93.50.1006.19

3.16R 0.100 1.6)

1.843.97(51.84)(5R X4X3X2EQ2X1Y Y =?

?====?

==?

=+=

--+-=()

(

Figure 11. Recommended Drive Circuit.P

(

)

–

(

)

–

2.0

0.8

I F – FORWARD CURRENT – mA

204080

1.6

0.4

1.2

60100

1.8

1.4

1.0

0.6

0.2

30507090

(

)

–

(

)

–

-7.0

-5.0

-4.0

-3.0

-2.0

-1.0

0.8

1.0

1.4

2.0

3.0

- FORWARD VOLTAGE - V

+5 V

Figure 9. Forward Voltage and Current Characteristics.Figure 10. Normalized Transmitter Output vs. Forward Current. Figure 12. Test Circuit for Measuring t r, t f.

HFBR-24x2Z Low-Cost 5 MBd Receiver Description

The HFBR-24x2Z fiber optic receiver is designed to oper-ate with the Avago Technologies HFBR-14xxZ fiber optic transmitter and 50/125 μm, 62.5/125 μm, 100/ 140 μm, and 200 μm HCS? fiber optic cable. Consistent coupling into the receiver is assured by the lensed optical system (Figure 1). Response does not vary with fiber size ≤ 0.100 μm.

The HFBR-24x2Z receiver incorporates an integrated photo IC containing a photodetector and dc amplifier driving an opencollector 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 V CC .

Both the open-collector “Data” output Pin 6 and V CC Pin 2 are referenced to “Com” Pin 3, 7. The “Data” output allows busing, strobing and wired “OR” circuit configurations. The transmitter is designed to operate from a single +5 V supply. It is essential that a bypass capacitor (0.1 mF ceramic) be connected from Pin 2 (V CC ) to Pin 3 (circuit common) of the receiver.

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Units

Reference

Storage Temperature T S -55+85°C Operating Temperature T A

-40

+85°C Lead Soldering Cycle Temp Time +26010°C sec Note 1

Supply Voltage V CC -0.5

7.0V Output Current I O 25mA Output Voltage

V O -0.518.0V Output Collector Power Dissipation P O AV 40mW

Fan Out (TTL)

Note 2

NOTES:

1. PINS 1, 4, 5 AND 8 ARE ELECTRICALLY CONNECTED

2. PINS 3 AND 7 ARE ELECTRICALLY CONNECTED TO HEADER

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HFBR-1424Z中文资料

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