AFBR-2409Z [BOARDCOM]
Low-Cost, 820 nm Miniature Link Fiber Optic Components with ST, SMA, SC, and FC Ports;
| 型号： | AFBR-2409Z |
| 厂家： | 
Broadcom Corporation. |
| 描述： | Low-Cost, 820 nm Miniature Link Fiber Optic Components with ST, SMA, SC, and FC Ports |
| 文件： | 总25页 (文件大小：391K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HFBR-14xxZ and HFBR-24xxZ Series
Low-Cost, 820 nm Miniature Link Fiber Optic
Components with ST, SMA, SC, and FC Ports
Data Sheet
Description
Features
The 820 nm Miniature Link Series of components is designed
to provide cost-effective, high-performance fiber optic
communication links for information systems and industrial
applications with link distances of several kilometers. With the
HFBR-24x6Z, the 125 MHz analog receiver, data rates of up to
160 MBaud can be attained.
.
.
.
.
.
.
.
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
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.
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 efficient coupling
Pick and place, and wave solderable
Products are available in various options. For example,
transmitters with the improved protection option P show an
increased ESD resistance to the pins. This HFBR-141xPxZ
integrated solution is realized by including a Zener diode
parallel to the LED.
No board-mounting hardware required
Wide operating temperature range –40°C to +85°C
Conductive port option
The HFBR-14x4Z high-power transmitter and HFBR-24x6Z
125 MHz receiver pair up to provide a duplex solution
optimized for 100BASE-SX. 100BASE-SX is a Fast Ethernet
Standard (100 Mb/s) at 850 nm on multimode fiber.
Applications
.
100BASE-SX Fast Ethernet on 850 nm
Evaluation kits are available for ST products, including
transmitter, receiver, eval board, and technical literature.
.
Media/fiber 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 office switch/PBX links
Video links
Modems and multiplexers
Suitable for Tempest systems
Industrial control links
Broadcom
- 1 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Part Number Guide
aa
A/HFBR - x 4 x x
Z
RoHS Compliant
1
2
Transmitter
Receiver
P
T
Protection improved option
Threaded port option
Conductive port receiver option
Metal port option
C
M
4
820 nm Transmitter and
Receiver products
0
1
2
E
SMA, housed
ST, housed
FC, housed
SC, housed
2
4
2
5
6
8
9
TX, standard power
TX, high power
RX, 5 MBaud, TTL output
TX, high light output power
RX, 125 MHz, Analog Output
RX, DC to 50 MBaud, Digital Output
RX, 100 KBaud to 50 MBaud, Digital Output
Available Options
HFBR-1402Z
HFBR-1412Z
HFBR-1415PMZ
HFBR-2406Z
HFBR-2416TZ
AFBR-2408Z
AFBR-2419TZ
HFBR-1404Z
HFBR-1412PTZ
HFBR-1414PZ
HFBR-1415Z
HFBR-2412TZ
HFBR-2422Z
AFBR-2418TZ
HFBR-1412PZ
HFBR-1414MZ
HFBR-1424Z
HFBR-2412Z
HFBR-24E2Z
AFBR-2418MZ
HFBR-1412TMZ
HFBR-1414TZ
HFBR-14E4Z
HFBR-2416MZ
HFBR-24E6Z
AFBR-2409Z
HFBR-1412TZ
HFBR-1414Z
HFBR-2402Z
HFBR-2416TCZ
HFBR-1414PTZ
HFBR-1415TZ
HFBR-2412TCZ
HFBR-2416Z
AFBR-2418Z
AFBR-2419Z
AFBR-2419MZ
Note: For better readability of the electrical and optical specifications, 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.
Link Selection Guide
For additional information about specific 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
Distance (m)
Transmitter
Receiver
Fiber Size (μm)
Evaluation Kit
(MBaud)1
DC to 5
1500
2700
2200
2000
1000
1400
700
HFBR-14x2Z
HFBR-24x2Z
HFBR-24x6Z
HFBR-24x6Z
AFBR-24x8xZ
AFBR-24x9xZ
HFBR-24x6Z
HFBR-24x6Z
HFBR-24x6Z
HFBR-24x6Z
62.5/125
62.5/125
62.5/125
62.5/125
62.5/125
62.5/125
62.5/125
62.5/125
62.5/125
HFBR-0410Z
HFBR-0416Z
HFBR-0416Z
AFBR-0549Z
AFBR-0550Z
HFBR-0416Z
HFBR-0416Z
HFBR-0416Z
HFBR-0416Z
20
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
HFBR-14x4Z/14x5Z
20 to 32
DC to 50
0.1 to 50
20 to 55
20 to 125
20 to 155
20 to 160
600
500
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.
Broadcom
- 2 -
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
. Significantly reduces effect 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
. Significantly reduces effect 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
Broadcom
- 3 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
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 offers 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, Broadcom’s application support group is always ready to assist with any design consideration.
Application Literature
Title
Description
Application Note 1065
Complete Solutions for IEEE 802.5J Fiberoptic Token Ring
Application Note 1121
Application Note 1122
Application Note 1123
Application Note 1137
DC to 32 MBaud Fiberoptic Solutions
2 to 70 MBaud Fiberoptic Solutions
20 to 160 MBaud Fiberoptic Solutions
Generic Printed Circuit Layout Rules
Evaluation Kits
Broadcom offers fiber optic kits that facilitate a simple means to evaluate and experience our products. These fiber 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
Broadcom
- 4 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
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
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 flame retardant 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 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 sufficient 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.
Broadcom
- 5 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Mechanical Dimensions (SMA Port)
HFBR-x40xZ
1/4 - 36 UNS 2A THREAD
12.7
(0.50)
22.2
(0.87)
6.35
(0.25)
12.7
(0.50)
6.4
(0.25)
10.2
(0.40)
3.6
(0.14)
DIA.
5.1
(0.20)
3.81
(0.15)
1.27
(0.05)
2.54
(0.10)
PINS 1,4,5,8
0.51 X 0.38
(0.020 X 0.015)
2.54
(0.10)
PINS 2,3,6,7
0.46
(0.018)
DIA.
PIN NO. 1
INDICATOR
Dimensions in mm (inches)
Mechanical Dimensions (ST Port)
HFBR-x41xZ
4.9
(0.193)
max.
12.7
(0.50)
8.2
(0.32)
27.2
(1.07)
6.35
(0.25)
12.7
(0.50)
7.0
(0.28)
10.2
(0.40)
3.6
(0.14)
DIA.
5.1
(0.20)
3.81
(0.15)
1.27
(0.05)
2.54
(0.10)
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)
Ø
PIN NO. 1
INDICATOR
Dimensions in mm (inches)
Broadcom
- 6 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Mechanical Dimensions (Metal ST Port)
HFBR-x41xMZ
4.9
MAX.
(0.193)
12.7
(0.50)
8.4
(0.33)
27.2
6.35
(1.07)
(0.25)
12.7
(0.50)
7.0
10.2
DIA.
3.6
(0.14)
(0.28)
(0.40)
5.1
(0.20)
3.81
1.27
(0.15)
2.54
(0.05)
(0.10)
2.54
PINS 1,4,5,8
0.51 × 0.38
(0.020 × 0.015)
(0.10)
PINS 2,3,6,7
0.46 DIA.
(0.018) DIA.
PIN NO. 1
INDICATOR
Dimensions in mm (inches)
Mechanical Dimensions (Threaded ST Port)
HFBR-x41xTZ
5.1
(0.20)
4.9
MAX.
(0.193)
12.7
(0.50)
8.4
(0.33)
27.2
(1.07)
7.6
(0.30)
6.35
(0.25)
12.7
(0.50)
7.1
10.2
DIA.
3.6
(0.28)
(0.40)
5.1
(0.14)
(0.20)
3/8 - 32 UNEF - 2A
3.81
1.27
(0.15)
2.54
(0.05)
DIA.
(0.10)
PINS 1,4,5,8
2.54
0.51 × 0.38
(0.10)
(0.020 × 0.015)
PINS 2,3,6,7
0.46
DIA.
(0.018)
PIN NO. 1
INDICATOR
Dimensions in mm (inches)
Broadcom
- 7 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Mechanical Dimensions (FC Port)
HFBR-x42xZ
M8 x 0.75 6G
THREAD (METRIC)
12.7
(0.50)
19.6
(0.77)
12.7
(0.50)
7.9
10.2
3.6
(0.31)
(0.14)
(0.40)
5.1
(0.20)
3.81
(0.15)
2.54
(0.10)
0.51 X 0.38
(0.020 X 0.015)
PINS 1,4,5,8
0.46
(0.018)
PINS 2,3,6,7 Ø
2.54
(0.10)
PIN NO. 1
INDICATOR
Dimensions in mm (inches)
Mechanical Dimensions (SC Port)
HFBR-x4ExZ
28.65
(1.128)
6.35
(0.25)
12.7
(0.50)
10.38
(0.409)
10.0
(0.394)
3.60
(0.14)
5.1
(0.20)
15.95
(0.628)
3.81
(0.15)
2.54
1.27
(0.05)
(0.10)
2.54
(0.10)
PINS 1,4,5,8
0.51 × 0.38
(0.020 × 0.015)
12.7
(0.50)
PINS 2,3,6,7
0.46
(0.018)
Ø
PIN NO. 1
INDICATOR
Dimensions in mm (inches)
Broadcom
- 8 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Cross-Sectional View
LED OR DETECTOR IC
LENS–SPHERE
(ON TRANSMITTERS ONLY)
HOUSING
LENS–WINDOW
CONNECTOR PORT
HEADER
EPOXY BACKFILL
Figure 1: HFBR-x41xTZ ST Series Cross-Sectional View
Panel Mount Hardware
HFBR-4401Z: for SMA Ports
HFBR-4411Z: for ST Ports
1/4 - 36 UNEF -
2B THREAD
3/8 - 32 UNEF -
2B THREAD
DATE CODE
PART
0.2 IN.
NUMBER
7.87
DIA.
12.70
DIA.
(0.310)
(0.50)
1.65
(0.065)
1.65
(0.065)
3/8 - 32 UNEF -
2A THREADING
HEX-NUT
HEX-NUT
1 THREAD
AVAILABLE
7.87 TYP.
(0.310) DIA.
14.27 TYP.
(0.563) DIA.
WALL
NUT
6.61
(0.260)
DIA.
10.41 MAX.
(0.410) DIA.
0.14
(0.005)
0.46
(0.018)
WASHER
WASHER
WASHER
(Each HFBR-4401Z and HFBR-4411Z kit consists of 100 nuts and 100 washers).
Dimensions in mm (inches)
Port Cap Hardware
HFBR-4402Z: 500 SMA Port Caps
HFBR-4120Z: 500 ST Port Plugs
Broadcom
- 9 -
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 specified
Parameter
Symbol Min. Typ.
Max.
Unit
Conditions
Reference
Optical Power Budget with 50/125 μm
fiber
OPB50
OPB62.5
OPB100
OPB200
4.2
9.6
15
15
20
dB
HFBR-14x4Z/24x2Z
NA = 0.2
Note 1
Optical Power Budget with 62.5/125 μm
fiber
8.0
dB
dB
dB
HFBR-14x4Z/24x2Z
NA = 0.27
Note 1
Note 1
Note 1
Note 2
Optical Power Budget with 100/140 μm
fiber
8.0
HFBR-14x2Z/24x2Z
NA = 0.30
Optical Power Budget with 200 μm fiber
13.0
DC
HFBR-14x2Z/24x2Z
NA = 0.37
Data Rate
5
MBaud
ns
Propagation Delay LOW to HIGH
tPLH
tPHL
tPLH – tPHL
BER
72
46
26
TA = +25°C
Propagation Delay HIGH to LOW
System Pulse Width Distortion
ns
ns
PR = –21 dBm peak
Fiber cable length
= 1 m
Figures
6, 7, 8
Bit Error Rate
Notes:
10-9
Data rate < 5 MBaud
PR > –24 dBm peak
1. Optical Power Board at T = –40°C to +85°C, V = 5.0V , I ON = 60 mA. P = –24 dBm peak.
A
CC
dc
F
R
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.
Broadcom
- 10 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
5 MBaud Logic Link Design
The resistor R1 is the only significant element in the drive circuit (see Figure 2) that limits the current through the LED, apart from
the gate´s output port. Depending on the actual gate used, the voltage drop on the output port V could be neglected. The
port
forward voltage value, V , of the LED depends on the desired LED current and on the temperature (see Figure 9). Make sure you
F
take this behavior into account for the calculations.
The curves in Figure 3, Figure 4, and Figure 5 are constructed assuming no inline splice or any additional system loss. Besides fiber
attenuation, for correct power budget calculation, make sure you take into account the effect of bending, humidity, ambient
temperature, aging and other relevant influences. All these additional losses reduce the achievable link distance accordingly.
For calculating the LED's aging effect, an additional loss of about 1.5 dB is recognized.
The following example will illustrate the technique for selecting the appropriate value of I and R1:
F
VCC - VF
R1 =
IF
Maximum distance required = 2000 meters by using HFBR-14x4Z/24x2Z logic link with 62.5/125 μm fiber.
Figure 4 shows the “worst-case”drive current of about 43 mA for reaching a distance of about 2000 meters.
Figure 9 shows the transmitter forward voltage of about V = 1.62V. If the typical circuit configuration (Figure 2) is used at V = 5.0
F
cc
V, the resistor value “R1”should be choosen to 78.6Ω (3.38 V/43 mA) for reaching driver current of about 43 mA.
Page 16 shows the guaranteed HFBR-14x4Z´s optical output power limit of -16.0 dBm (for driver current of 60 mA) over the entire
temperature range.
Figure 10 shows the normalized typical output power. When the transmitter will be driven with 43 mA the optical output power is
about 0.70 or –1.55 dB lower than at 60 mA.
With an assumed fiber attenuation of 3.2 dB/km and the reduced driver current of 43 mA, the minimum optical output power at
fiber 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.
Figure 2. Typical Circuit Configuration
TTL DATA OUT
HFBR - 14x xZ
TRANSMITTER
HFBR - 24x 2Z
RECEIVER
SELECT R1 TO SET IF
+5V
IF
R 1
2
2
6
7
3
VCC
T
R
R L
6
1 K
0.1 μF
7 & 3
DATA IN
TRANSMISSION
DISTANCE =
½ 75451
Note:
A bypass capacitor (0.01 μF to 0.1 μF ceramic) must 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.
The following diagrams (Figure 3 to Figure 5) serve as an aid in Link Design and are based on theoretical calculations. For broad
use, no additional effects such as aging were taken into account. The additional losses and the individual safety buffer values
should be added separately. These diagrams reflect the pure viewing of power budget and do not allows conclusions about the
actual link quality.
Overdrive: Maximum optical output power of Tx combined with receiver sensitivity of –10 dBm over the entire temperature range.
Typical 25°C: Typical optical output power of Tx combined with receiver sensitivity of –25.4 dBm at T = 25°C.
A
Worst Case: Minimum optical output power of Tx combined with receiver sensitivity of –24 dBm over the entire temperature
range.
Broadcom
- 11 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Figure 3: Typical HFBR-14x4xZ/HFBR-24x2xZ Link with
100/140 μm Fiber
Figure 4: Typical HFBR-14x4xZ/HFBR-24x2xZ Link with
62.5/125 μm Fiber
100
90
100
90
80
80
OVERDRIVE
70
70
OVERDRIVE
WorstCase
Worst Case
TYPICAL, 25°C
60
50
40
30
20
10
0
60
50
40
30
20
10
0
TYPICAL, 25°C
0
1
2
3
4
0
1
2
3
4
Fiber Length (km)
Fiber Length (km)
(Fiber Attenuation: 3.2 dB/km)
(Fiber Attenuation: 4 dB/km)
Figure 5: Typical HFBR-14x4xZ/HFBR-24x2xZ Link with
50/125 μm Fiber
100
90
WorstCase
80
TYPICAL, 25°C
70
60
50
40
30
20
10
0
0
1
2
3
4
Fiber Length (km)
(Fiber Attenuation: 2.7 dB/km)
Figure 7: Typical Pulse Width Distortion of Link (HFBR-14x4Z/HF-
BR-24x2Z) measured at TA=25°C, 5 MBaud, and with 1m of Cable
Figure 6: Typical Propagation Delay Times of Link (HFBR-14x4Z/
HFBR-24x2Z) measured at TA=25°C, 5 MBaud, and with 1m of Cable
55
50
45
40
75
70
t
(TYP) @ 25°C
PLH
65
60
55
50
45
40
35
30
35
30
25
t
(TYP) @ 25°C
PHL
25
20
20
-22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12
-22 -21 -20 -19 -18 -17 -16 -15 -14 -13 -12
P – RECEIVER POWER – dBm
R
P – RECEIVER POWER – dBm
R
Broadcom
- 12 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Figure 8: System Propagation Delay Test Circuit and Waveform Timing Definitions
PULSE
GEN
+15V
RESISTOR VALUE AS NEEDED FOR
SETTING OPTICAL POWER OUTPUT
FROM RECEIVER END OF TEST CABLE
R S
PULSE REPETITION
FREQ = 1 MHz
1N4150
½ 75451
100 ns
tPHLT
100 ns
tPHLT
INPUT
2, 6, 7
R S
IF 50%
3
TRANSMITTER
INPUT (I
)
F
50%
P T
tPHL
MIN
TIMING
ANALYSIS
EQUIPMENT
eg. SCOPE
FROM 1-METER
TEST CABLE
tPHL
MAX
tPHL
MAX
tPHL
MIN
P T -
+5 V
R L
0.1 μF
5V
2
560
OUTPUT
VO
1.5V
0
6
7 & 3
+
VO
15 pF
HFBR-2412Z RECEIVER
155 MBaud Link (HFBR-14x4Z/24x6Z)
Typical Link Performance
[1, 2]
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Reference
Optical Power Budget with
50/125 μm fiber
OPB50
13.9
dB
NA = 0.2
Note 2
Optical Power Budget
with 62.5/125 μm fiber
OPB62
OPB100
OPB200
17.7
17.7
22.0
dB
NA = 0.27
NA = 0.30
NA = 0.35
Optical Power Budget
with 100/140 μm fiber
dB
Optical Power Budget
with 200 μm PCS fiber
dB
Data Format 20% to 80% Duty
Factor
20
160
MBaud
ns
System Pulse Width
Distortion
1
PR = –7 dBm peak 1 m
62.5/125 μm fiber
|tPLH − tPHL
|
Bit Error Rate
BER
10-9
Data rate < 100 MBaud
PR > –31 dBm peak
Note 2
Notes:
1. Typical data at T = +25°C, V = 5.0V , PECL serial interface.
2. Typical OPB was determined at a probability of error (BER) of 10 . Lower probabilities of error can be achieved with short fibers that have less optical loss.
A
CC
dc
-9
Broadcom
- 13 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
HFBR-14x2Z/14x4Z/14x5Z Low-Cost High-Speed Transmitters
Note: Parameters “reverse input voltage” and “diode capaci-
tance” for “HFBR-141xPxZ” transmitters deviate from the non
P-parts.
Description
The HFBR-14xxZ fiber optic transmitter contains an 820 nm
AlGaAs emitter capable of efficiently launching optical power
into four different optical fiber sizes: 50/125 ꢀm, 62.5/125 μm,
100/140 μm, and 200 μm Plastic-Clad Silica (PCS). This allows
the designer flexibility in choosing the fiber size. The HFBR-
14xxZ is designed to operate with the Broadcom Ltd. HFBR-
24xxZ fiber optic receivers.
Consistent coupling efficiency is assured by the double-lens
optical system (Figure 1 on page 9). 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 ef-
ficiency reduces receiver dynamic range requirements, which
allows for longer link lengths.
The HFBR-14xxZ transmitter’s high coupling efficiency 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 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 cre-
ate large fixed losses.
Housed Product
PIN
11
2
FUNCTION
NC
ANODE
CATHODE
NC
2, 6, 7
3
ANODE
32
41
51
6
CATHODE
NC
ANODE
ANODE
NC
72
81
4
3
2
1
5
6
7
8
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.
BOTTOM VIEW
PIN 1 INDICATOR
NOTES:
1. PINS 1, 4, 5, AND 8 ARE ELECTRICALLY CONNECTED.
2. PINS 2, 6, AND 7 ARE ELECTRICALLY CONNECTED TO THE HEADER.
Regulatory Compliance - Targeted Specifications
Feature
Electrostatic Discharge (ESD)
Performance
Class 1C (>1000V, <2000V) - Human Body Model
Reference
Note 1, 4
Class 1B (>500V, <1000V) - Human Body Model
Note 1, 2
Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Unit
Reference
Storage Temperature
TS
–55
+85
°C
Operating Temperature
TA
–40
+85
°C
Lead Soldering Cycle
Temp
Time
+260
10
°C
sec
Forward Input Current
Peak
dc
IFPK
IFdc
200
100
mA
mA
Note 3
Note 4
Reverse Input Voltage
VBR
1.8
0.3
V
V
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 > 100 mA, the time duration should not exceed 2 ns.
FPK
4. Only valid for HFBR-141xPxZ (Protection improved option).
Broadcom
- 14 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Electrical/Optical Specifications
–40°C to +85°C unless otherwise specified.
[2]
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Reference
Forward Voltage
VF
1.48
1.70
2.09
V
IF = 60 mA dc
Figure 9
1.84
IF = 100 mA dc
Forward Voltage Temperature
Coefficient
ΔVF/ΔT
VBR
–0.22
–0.18
3.8
mV/K
IF = 60 mA dc
IF = 100 mA dc
IF = –100 μA dc
IF = –100 μA dc
Figure 9
Note 10
Note 10
Reverse Input Voltage
1.8
0.3
V
V
0.7
Peak Emission Wavelength
Diode Capacitance
lP
792
820
865
nm
pF
CT
55
V = 0, f = 1 MHz
V = 0, f = 1 MHz
I = 60 mA dc
70
pF
Optical Power Temperature
Coefficient
ΔPT/ΔT
–0.006
–0.010
dB/K
I = 100 mA dc
Thermal Resistance
ΘJA
490
K/W
Notes 3, 8
14x2Z Numerical Aperture
14x4Z Numerical Aperture
14x2Z Optical Port Diameter
14x4Z Optical Port Diameter
NA
NA
D
0.49
0.31
290
150
μm
μm
Note 4
Note 4
D
HFBR-14x2Z Output Power Measured Out of 1 Meter of Cable
Parameter
50/125 μm Fiber Cable
Symbol
PT50
Min.
–21.8
–22.8
–20.3
–21.9
–19.0
–20.0
–17.5
–19.1
–15.0
–16.0
–13.5
–15.1
–10.0
–11.0
–8.5
Typ.
–18.8
Max.
–16.8
–15.8
–14.4
–13.8
–14.0
–13.0
–11.6
–11.0
–10
Unit
Conditions
Reference
Notes 5, 6, 9
dBm peak TA = +25°C, IF = 60 mA
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
–16.8
–16.0
–14.0
–12.0
–10.0
–7.0
Figure 10
dBm peak TA = –40°C to +85°C, IF = 100 mA
dBm peak TA = +25°C, IF = 60 mA
62.5/125 μm Fiber Cable
100/140 μm Fiber Cable
200 μm PCS Fiber Cable
PT62
PT100
PT200
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
dBm peak TA = –40°C to +85°C, IF = 100 mA
dBm peak TA = +25°C, IF = 60 mA
–9.0
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
–7.6
–7.0
dBm peak TA = –40°C to +85°C, IF = 100 mA
dBm peak TA = +25°C, IF = 60 mA
–5.0
–4.0
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
–5.0
–2.6
–10.1
–2.0
dBm peak TA = –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.
Broadcom
- 15 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
HFBR-14x4Z Output Power Measured out of 1 Meter of Cable
[2]
Parameter
50/125 μm Fiber Cable
NA = 0.2
Symbol Min. Typ.
Max.
–13.8
–12.8
–11.4
–10.8
–10.0
–9.0
–7.6
–7.0
–6.5
–5.5
–4.1
–3.5
–2.5
–1.5
–0.1
0.5
Unit
Conditions
Reference
Notes 5, 6, 9
PT50
–18.8
–19.8
–17.3
–18.9
–15.0
–16.0
–13.5
–15.1
–11.5
–12.5
–10.0
–11.6
–7.5
–15.8
–13.8
–12.0
–10.0
–8.5
dBm peak TA = +25°C, IF = 60 mA
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
Figure 10
dBm peak TA = –40°C to +85°C, IF = 100 mA
dBm peak TA = +25°C, IF = 60 mA
62.5/125 μm Fiber Cable
NA = 0.275
PT62
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
dBm peak TA = –40°C to +85°C, IF = 100 mA
dBm peak TA = +25°C, IF = 60 mA
100/140 μm Fiber Cable
NA = 0.3
PT100
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
–6.5
dBm peak TA = –40°C to +85°C, IF = 100 mA
dBm peak TA = +25°C, IF = 60 mA
200 μm PCS Fiber Cable
NA = 0.37
PT200
–4.5
–8.5
dBm peak TA = –40°C to +85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 100 mA
–6.0
–2.5
–7.6
dBm peak TA = –40°C to +85°C, IF = 100 mA
HFBR-14x5Z Output Power Measured out of 1 Meter of Cable
Parameter
50/125 μm Fiber Cable
NA = 0.2
Symbol
PT50
Min.
–16.5
–17.5
–12.0
–13.0
–6.0
Typ.
–14.3
Max.
–11.5
–10.5
–8.0
–7.0
0.0
Unit
Conditions
Reference
Notes 5, 6, 9
dBm peak TA = +25°C, IF = 60 mA
dBm peak TA = –40°C to 85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 60 mA
62.5/125 μm Fiber Cable
NA = 0.275
PT62
–10.5
–3.6
Figure 10
dBm peak TA = –40°C to 85°C, IF = 60 mA
dBm peak TA = +25°C, IF = 60 mA
200 μm Fiber Cable
NA = 0.37
PT200
–7.0
1.0
dBm peak TA = –40°C to 85°C, IF = 60 mA
14x2Z/14x4Z/14x5Z Dynamic Characteristics
[2]
Parameter
Symbol
Min. Typ.
Max.
Unit
Conditions
Reference
Rise Time, Fall Time
(10% to 90%)
tr, tf
4.0
6.5
ns
IF = 60 mA
Note 7
No pre-bias Figure 11
Rise Time, Fall Time
(10% to 90%)
tr, tf
3.0
0.5
ns
ns
IF = 10 to 100 mA
Figure 12
Figure 12
Pulse Width Distortion
Notes:
PWD
1. For I > 100 mA, the time duration should not exceed 2 ns.
FPK
2. Typical data at T = +25°C.
A
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 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-
T
141xZ, and with an SMA 905 precision ceramic ferrule for HFBR-140xZ.
6. When changing mW to dBm, the optical power is referenced to 1 mW. Optical Power P(dBm) = 10log (P(mW) / 1 mW)
7. Pre-bias is recommended if signal rate >10 MBaud, 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.
10. Only valid for HFBR-141xPxZ (Protection improved option).
Broadcom
- 16 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
All HFBR-14XXZ LED transmitters are classified as IEC 825-1 Accessible Emission Limit (AEL) Class 1 based upon the current
proposed draft scheduled to go in to effect 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
2
100
90
80
70
60
50
40
3.0
1.8
1.6
1.4
1.2
1
2.0
0.8
0
-1.0
0.8
0.6
0.4
0.2
0
30
-4.0
-7.0
85°C
20
10
25°C
40°C
-
1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9
FORWARD VOLTAGE (V)
2
2.1 2.2
0
10 20 30 40 50 60 70 80 90 100
FORWARD CURRENT (mA)
Broadcom
- 17 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Recommended Transmitter Driver Circuitry
Transmitter
R1
R2
R3
C3
HFBR-14x2Z/x4Z/x5Z
33Ω
33Ω
270Ω
75 pF
Figure 11: Recommended Drive Circuit
TXVCC = 5.0V
HFBR-14x2Z/x4Z/x5Z
C1
C2
2
AN2
6
10 μF
100 nF
AN6
7
AN7
3
CAT
IC1A
3
Tx
1
GND
R2
GND
2
IC1B
6
4
5
R1
IC1D
11
12
13
GND
Data
IC1C
8
9
10
GND
74ACT[Q]00MTC
Note: The component values shown in the table create a typical driver current of 60mA (peak). An individual check of the optical output signal quality of the used
optic transmitter is recommended during the circuit design.
Figure 12: Test Circuit for Measuring tr, tf
Agilent 81130A
PULSE/PATTERN
GENERATOR
GND OUT
SMA measuring cable (50Ω)
O/E CONVERTER
HIGH SPEED
Silicon PIN photo diode
(50Ω terminated)
OSCILLOSCOPE
(50Ω terminated)
Broadcom
- 18 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
HFBR-24x2Z Low-Cost 5 MBaud Receiver
Description
The HFBR-24x2Z fiber optic receiver is designed to operate with the Broadcom Ltd. HFBR-14xxZ fiber optic transmitter and
50/125 ꢀm, 62.5/125 ꢀm, 100/140 ꢀm, and 200 ꢀm Plastic-Clad Silica (PCS) 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 ꢀm.
The HFBR-24x2Z receiver incorporates an integrated photo IC containing a photodetector and dc amplifier 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 V .
CC
Both the open-collector Data output Pin 6 and V Pin 2 are referenced to Com Pins 3 and 7. The Data output allows busing,
CC
strobing and wired OR circuit configurations. 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 (V ) to Pin 3 (circuit common) of the receiver.
CC
Housed Product
2
6
V cc
DATA
PI N
1 1
2
FUNCTION
NC
VCC (5V)
COMMON
NC
7 & 3
COMMON
3 2
4 1
5 1
6
NC
4 5
3 6
2 7
1 8
DATA
COMMON
NC
7 2
8 1
BOTTOM VIEW
NOTES:
PIN 1 INDICATOR
1. PINS 1, 4, 5, AND 8 ARE ELECTRICALLY CONNECTED.
2. PINS 3 AND 7 ARE ELECTRICALLY CONNECTED TO THE HEADER.
Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Unit
Reference
Storage Temperature
TS
–55
+85
°C
Operating Temperature
TA
–40
+85
°C
Lead Soldering Cycle
Temp
Time
Note 1
+260
10
°C
sec
Supply Voltage
Output Current
Output Voltage
VCC
IO
–0.5
–0.5
+7.0
25
V
mA
V
VO
+18.0
Output Collector Power Dissipation
Fan Out (TTL)
PO AV
N
40
5
mW
Note 2
Notes:
1. 2.0 mm from where leads enter case.
2. 8 mA load (5 x 1.6 mA), RL = 560Ω.
Broadcom
- 19 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Electrical/Optical Characteristics
–40°C to + 85°C unless otherwise specified. Fiber sizes with core diameter ≤ 100 ꢀm and N/A ≤ 0.35, 4.75V ≤ V ≤ 5.25V.
CC
[3]
Parameter
High Level Output Current
Low Level Output Voltage
High Level Supply Current
Low Level Supply Current
Equivalent NA
Symbol Min. Typ.
Max.
250
0.5
Unit
μA
Conditions
VO = 18, PR < –40 dBm
IO = 8 m, PR > –24 dBm
VCC = 5.25 V, PR < –40 dBm
VCC = 5.25 V, PR > –24 dBm
Reference
IOH
VOL
ICCH
ICCL
NA
D
5
0.4
3.5
6.2
0.50
400
V
6.3
mA
mA
10
Optical Port Diameter
μm
Note 4
Dynamic Characteristics
–40°C to + 85°C unless otherwise specified; 4.75V ≤ V ≤ 5.25V; BER ≤ 10
-9
CC
[3]
Parameter
Symbol Min. Typ.
Max.
Unit
Conditions
Reference
Peak Optical Input Power Logic Level
HIGH
PRH
–40 dBm peak λP = 820 nm
0.1 μW peak
Note 5
Peak Optical Input Power Logic Level
LOW
PRL
–25.4
2.9
–9.2 dBm peak TA = +25°C,
120 μW peak IOL = 8 mA
Note 5
Note 6
–24.0
4.0
–10.0 dBm peak TA = –40°C to +85°C,
100 μW peak IOL = 8 mA
Propagation Delay LOW to HIGH
Propagation Delay HIGH to LOW
tPLHR
tPHLR
65
49
ns
ns
TA = +25°C,
PR = –21 dBm,
Data Rate = 5 MBaud
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 = +25°C, V = 5.0V .
A
CC
DC
4. D is the effective diameter of the detector image on the plane of the fiber face. The numerical value is the product of the actual detector diameter and the lens
magnification.
5. Measured at the end of 100/140 μm fiber optic cable with large area detector.
6. Propagation delay through the system is the result of several sequentially-occurring phenomena. Consequently it is a combination of data-rate-limiting effects
and of transmission-time effects. Because of this, the data-rate limit of the system must be described in terms of time differentials 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 affected by increasing cable length if the optical power level at the receiver is maintained.
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.
Broadcom
- 20 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
HFBR-24x6Z Low-Cost 125 MHz Receiver
Description
The HFBR-24x6Z fiber optic receiver is designed to operate with the Broadcom Ltd. HFBR-14xxZ fiber optic transmitters and
50/125 ꢀm, 62.5/125 ꢀm, 100/140 ꢀm, and 200 ꢀm Plastic-Clad Silica (PCS) fiber optic cable. Consistent coupling into the receiver
is assured by the lensed optical system (Figure 1). Response does not vary with fiber size for core diameters of 100 ꢀm 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 preamplifier integrated circuit. The HFBR-
24x6Z receives an optical signal and converts it to an analog voltage. The output is a buffered 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
-9
range of 23 dB over temperature is achievable, assuming a Bit Error Rate (BER) of 10 .
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 filtered to protect the receiver from noisy host systems. Refer to AN 1065 for details.
Housed Product
Figure 13: Simplified Schematic Diagram
6
6
Vcc
POSITIVE
SUPPLY
BIAS & FILTER
CIRCUITS
V
CC
2
ANALOG SIGNAL
VEE
3 & 7
300 pF
4
3
2
1
5
6
7
8
2
ANALOG
SIGNAL
V
OUT
BOTTOM VIEW
5.0
mA
PIN 1 INDICATOR
3, 7
NOTES:
NEGATIVE
SUPPLY
PI N
11
2
FUNCTION
NC
SIGNAL
VEE
NC
NC
VCC
VEE
NC
V
EE
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.
32
41
51
6
72
81
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.
Broadcom
- 21 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Absolute Maximum Ratings
Parameter
Storage Temperature
Symbol
Min.
–55
Max.
+85
Unit
°C
Reference
TS
TA
Operating Temperature
–40
+85
°C
Lead Soldering Cycle
Temp
Time
+260
10
°C
sec
Note 1
Supply Voltage
Output Current
Signal Pin Voltage
VCC
IO
–0.5
–0.5
+6.0
25
V
mA
V
VSIG
VCC
Electrical/Optical Characteristics
–40°C to +85°C; 4.75V ≤ Supply Voltage ≤ 5.25 V, R
= 511Ω, Fiber sizes with core diameter ≤ 100 μm, and NA ≤ 0.35 unless
LOAD
otherwise specified.
[2]
Parameter
Responsivity
Symbol Min.
Typ.
Max.
9.6
Unit
Conditions
Reference
Note 3, 4
Figure 18
RP
5.3
4.5
7
mV/μW TA = +25°C at 820 nm, 50 MHz
11.5
mV/μW TA= −40°C to +85°C at 820nm,
50MHz
RMS Output Noise Voltage
VNO
0.40
0.59
0.70
mV
Bandwidth filtered at 75 MHz
PR = 0 μW
Note 5
Figure 15
mV
Unfiltered bandwidth
PR = 0 μW
Equivalent Input Optical
Noise Power (RMS)
PN
PR
–43.0
0.050
–41.4
0.065
dBm
μW
Bandwidth filtered at 75 MHz
Optical Input Power
(Overdrive)
–7.6
175
dBm peak TA = +25°C
μW peak
Note 6
Figure 16
–8.2
150
dBm peak TA = –40°C to +85°C
μW peak
Output Impedance
dc Output Voltage
Power Supply Current
Equivalent NA
ZO
VO dc
IEE
30
Ω
V
Test Frequency = 50 MHz
PR = 0 μW
Vcc – 4.2 Vcc – 3.1 Vcc – 2.4
9
15
mA
RLOAD = 510Ω
NA
D
0.35
324
Equivalent Diameter
μm
Note 7
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.
Broadcom
- 22 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Dynamic Characteristics
–40°C to +85°C; 4.75V ≤ Supply Voltage ≤ 5.25V; R
= 511Ω, C
= 5 pF unless otherwise specified
LOAD
LOAD
[2]
Parameter
Rise/Fall Time 10% to 90%
Pulse Width Distortion
Symbol
tr, tf
Min.
Typ.
Max.
Unit
ns
Conditions
PR = 100 μW peak
PR = 150 μW peak
Reference
3.3
0.4
6.3
2.5
Figure 17
PWD
ns
Note 8, Figure 16
Overshoot
2
%
PR = 5 μW peak,
tr = 1.5 ns
Note 9
Bandwidth (Electrical)
BW
125
MHz
–3 dB Electrical
Note 10
Bandwidth - Rise Time Product
0.41
Hz × s
Notes:
1. 2.0 mm from where leads enter case.
2. Typical specifications are for operation at T = +25°C and V = +5V DC.
A
CC
3. For 200 ꢀm PCS fibers, 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 filter with a 75 MHz, –3 dB bandwidth.
6. Overdrive is defined at PWD = 2.5 ns.
7. D is the effective diameter of the detector image on the plane of the fiber face. The numerical value is the product of the actual detector diameter and the lens
magnification.
8. Measured with a 10 ns pulse width, 50% duty cycle, at the 50% amplitude point of the waveform.
9. Percent overshoot is defined as:
VPK – V100%
x 100%
(
)
V100%
10. The conversion factor for the rise time to bandwidth is 0.41 since the HFBR-24x6Z has a second order bandwidth limiting characteristic.
Figure 14: Recommended AC-Coupled Receiver Circuit
0.1 μF
+5V
10ꢀ
6
30 pF
2
POST
AMP
LOGIC
OUTPUT
3 & 7
R
LOADS
500ꢀ MIN.
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.
Broadcom
- 23 -
HFBR-14xxZ and HFBR-24xxZ Series
Data Sheet
Figure 15: Typical Spectral Noise Density vs. Frequency
Figure 16: Typical Pulse Width Distortion vs. Peak Input Power
150
3.0
125
100
2.5
2.0
75
50
1.5
1.0
0.5
25
0
0
0
50
100
150
200
250
300
0
10
20
30
40
50
60
70 80
FREQUENCY – MHz
P
– INPUT OPTICAL POWER – μW
R
Figure 17: Typical Rise and Fall Times vs. Temperature
Figure 18: Typical Receiver Spectral Response Normalized to
820 nm
6.0
1.25
1.00
0.75
5.0
4.0
t
t
f
0.50
0.25
0
3.0
2.0
1.0
r
400 480 560 640 720
800 880 960 1040
-60 -40 -20
0
20
40
60
80 100
λ – WAVELENGTH – nm
TEMPERATURE – °C
Broadcom
- 24 -
For product information and a complete list of distributors, please go to our web site:
www.broadcom.com.
2
Broadcom, the pulse logo, Connecting everything, Avago Technologies, Avago, the A logo, and R Coupler are
among the trademarks of Broadcom and/or its affiliates in the United States, certain other countries and/or the
EU.
Broadcom Proprietary and Confidential. Copyright © 2017-2018 Broadcom. All Rights Reserved. The term
“Broadcom”refers to Broadcom Limited and/or its subsidiaries.
Broadcom reserves the right to make changes without further notice to any products or data herein to
improve reliability, function, or design. Information furnished by Broadcom is believed to be accurate and
reliable. However, Broadcom does not assume any liability arising out of the application or use of this
information, nor the application or use of any product or circuit described herein, neither does it convey any
license under its patent rights nor the rights of others.
AV02-0176EN – March 13, 2018
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