AFBR-x644Z [BOARDCOM]
DC-50MBd Versatile Link Fiber Optic Transmitter;
| 型号： | AFBR-x644Z |
| 厂家： | 
Broadcom Corporation. |
| 描述： | DC-50MBd Versatile Link Fiber Optic Transmitter |
| 文件： | 总11页 (文件大小：464K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AFBR-16xxZ and AFBR-26x4Z/25x9Z
DC-50MBd Versatile Link Fiber Optic Transmitter
and Receiver for 1 mm POF and 200 m PCS
Data Sheet
Description
Features
The AFBR-16xxZ transmitter utilizes a 650 nm LED source RoHS-compliant
with integrated optics and driver IC for efficient coupling
Data transmission at signal rates from DC up to 50 MBd
into 1 mm Polymer Optical Fiber (POF). The AFBR-
26x4Z/25x9Z receiver consists of an IC with an integrated
photodiode to produce a logic compatible output. The
Transmitter: integrated 650 nm LED and driver IC with
TTL input logic
transmitter input and receiver output are compatible with Receiver: integrated PIN diode and digitalizing IC with
TTL logic families. The pair operates any type of signal
from DC up to 50 MBd at distances up to 50 m with 1 mm
POF, up to 200 m at 10 MBd and 120 m at 50 MBd with 200
m Plastic-Clad Silica (PCS), respectively.
TTL output logic
Up to 50 m distance with 1 mm Polymer Optical Fiber
(POF) over operating temperature range
Up to 200 m (10 MBd) distance and 120 m (50 MBd)
distance with 200 m Plastic-Clad Silica (PCS) over
operating temperature range
The transmitter is a 3-pin and the receiver is a 4-pin device,
packed in Versatile Link housing. Versatile Link compo-
nents can be interlocked (N-plexed together) to minimize
space and to provide dual connections with the duplex
connectors. Various simplex and duplex connectors, as
well as POF cables are available for Versatile Link compo-
nents. For details, contact Avago Technologies or visit our
company website at www.avagotech.com
Operating temperature range of -40 C to +85 C
Compatible with Avago’s Versatile Link family of
connectors, for easy termination of fiber
Applications
Optical Transmitter and Receiver for 50 MBd systems and
below:
AFBR-xxx4Z are delivering non-inverted output signals
while AFBR-xxx9Z deliver inverted output signals.
Industrial control and factory automation
Extension of RS-232 and RS-485
High voltage isolation
AFBR-xxxxZ - Part number selection guide
– x x
x x Z
AFBR
Elimination of ground loops
1 = Transmitter (TX)
2 = Receiver (RX)
Z = Extended Temperature Range,
RoHS Compliant
Reduces voltage transient susceptibility
5/6 = 650 nm products
2 = Horizontal Package
3 = Vertical Package
4 = 50 MBd Non-Inverted
9 = 50 MBd Inverted
4 = Tilted (30°) Package
Available options
Horizontal Package
Vertical Package
AFBR-x624Z AFBR-1629Z AFBR-2529Z
AFBR-x634Z AFBR-1639Z AFBR-2539Z
Tilted (30°) package AFBR-x644Z
Application Literature
Handling
Application Note 1035 (Versatile Link) - AV02-0730EN
Versatile Link components are auto-insertable. When
wave soldering is performed with Versatile Link compo-
nents, the optical port plug should be left in to prevent
contamination of the port. Do not use reflow solder
processes (i.e., infrared reflow or vapor-phase reflow).
Nonhalogenated water soluble fluxes (i.e., 0% chloride),
not rosin based fluxes, are recommended for use with
Versatile Link components.
Package and Handling Information
The compact Versatile Link package is made of a flame-
retardant material and uses the same pad layout as a
standard, eight-pin dual-in-line package. Horizontal,
Vertical, and Tilted (30°) packages are available. These
low profile Versatile Link packages are stackable and are
enclosed to provide a dust-resistant seal. Snap action
simplex, simplex latching, duplex, and duplex latching
connectors are offered with simplex or duplex cables.
Versatile Link components are moisture sensitive
devices and are shipped in a moisture sealed bag. If the
components are exposed to air for an extended period of
time, they may require a baking step before the soldering
process. Refer to the special labeling on the shipping tube
for details.
Package Orientation
Performance and pinouts for the horizontal, vertical, and
tilted (30°) packages are identical. To provide additional
attachment support for the vertical Versatile Link
housing, the designer has the option of using a self-
tapping screw through a printed circuit board into a
mounting hole at the bottom of the package. For most
applications this is not necessary.
Recommended Chemicals for Cleaning/Degreasing
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, Avago
does not recommend the use of cleaners that use
halogenated hydrocarbons because of their potential en-
vironmental harm.
Package Housing Color
Versatile Link components and simplex connectors are
color coded to eliminate confusion when making con-
nections. Receiver packages are black and transmitter
packages are gray in color respectively.
2
Mechanical Dimensions
Horizontal Module
Vertical Module
3.6
[0.14]
1
[0.04]
18.8
[0.74]
18.1
[0.71]
5.1
[0.20]
6.5
[0.26]
7.6
[0.30]
2
[0.08]
1.7
[0.07]
1.3
[0.05]
7.7
[0.30]
0.6
2.54
[0.100]
[0.02]
0.5
[0.02]
1.3
[0.05]
7.62
[0.300]
0.5
[0.02]
2.54
[0.100]
NOTES:
1) Dimensions: mm [in]
1.7
[0.07]
2.8
[0.11]
NOTES:
1) Dimensions: mm [in]
2)
2) Optional mounting hole for #2 self-tapping-screw
(metric equivalent M2.2 x 0.45)
3.8
[0.15]
Tilted (30°) Module
A
0.4
[0.02]
0.7
[0.03]
A
1.3
[0.05]
1.1
[0.05]
7.62
[0.300]
2.54
[0.100]
0.5
[0.02]
2.2
[0.09]
8.7
[0.34]
10.1
[0.40]
NOTES:
1) Dimensions: mm [in]
19.3
[0.76]
3
Versatile Link Printed Board Layout Dimensions
Horizontal Module
Vertical Module
7.62
7.62
[0.300]
[0.300]
2.54
[0.100]
2.54
[0.100]
4
5
3
2
1
8
2.25 [0.09] clearance hole
for optional vertical mount
self-tapping-screw #2
3.8
[0.15]
4
5
2
1
8
3
PCB EDGE
1.9
[0.07]
MIN.
PCB EDGE
3.8
[0.15]
1.7
MIN.
NOTES:
[0.07]
NOTES:
1) Dimensions: mm [in]
1) Dimensions: mm [in]
Footprint - TOP VIEW
Footprint - TOP VIEW
Tilted (30°) Module
7.62
[0.300]
2.54
[0.100]
2
1
8
4
5
3
PCB EDGE
MIN.
2.2
[0.09]
NOTES:
1) Dimensions: mm [in]
Footprint - TOP VIEW
4
Interlocked (Stacked) Assemblies (refer to Figure 1)
Horizontal packages may be stacked by placing units with pins facing upward. Initially engage the inter-
locking mechanism by sliding the L bracket body from above into the L slot body of the lower package. Use
a straight edge, such as a ruler, to bring all stacked units into uniform alignment. This technique prevents
potential harm that could occur to fingers and hands of assemblers from the package pins. Stacked horizontal
packages can be disengaged if necessary. Repeated stacking and unstacking causes no damage to individual units.
To stack vertical packages, hold one unit in each hand, with the pins facing away and the optical ports on the bottom.
Slide the L bracket unit into the L slot unit. The straight edge used for horizontal package alignment is not needed.
Stacking Horizontal Modules
Stacking Vertical Modules
Tilted (30°) Module
Figure 1. Interlocked (stacked) Horizontal, Vertical and Tilted (30°) packages
5
TX
RX
4 3 2 1
4 3 2 1
Pin Description Transmitter
Fiber port facing front, pins downward, 1 = Rightmost pin to 4 = Leftmost pin
Pin
1
Name
Function/Description
Notes
VCCT
Transmitter Power 3.3 V 5% or 5 V 5%
No physical pin is available
2
No Pin
3
VEET
Transmitter Ground
4
Data In
Housing Pin
Housing Pin
Transmitter Data Input
1, 2
3
5
Physical pin is available, recommended to chassis GND
Physical pin is available, recommended to chassis GND
8
3
Pin Description Receiver
Fiber port facing front, pins downward, 1 = Rightmost pin to 4 = Leftmost pin
Pin
1
Name
Function/Description
Notes
Data Out
VEER
Receiver Data Output
2
2
Receiver Ground
3
VCCR
Receiver Power 3.3 V 5% or 5 V 5%
No function, physical pin is available, recommended to signal GND
Physical pin is available, recommended to chassis GND
Physical pin is available, recommended to chassis GND
4
Pin
4
3
3
5
Housing Pin
Housing Pin
8
Notes:
1. Logic 1 input will turn the light on and the logic 0 will turn the light off for AFBR-16x4Z. Logic 1 input will turn the light off and the logic 0 will turn
the light on for AFBR-16x9Z.
2. TTL compatible data input and output.
3. Pin 5 and 8 are for mounting and retaining purposes, and should be connected to chassis GND.
4. It is recommended to connect this pin to signal GND.
6
Regulatory Compliance
Feature
Test Method
Performance
Electrostatic Discharge (ESD) to
MIL-STD-883 Method 3015
Min 2000 V
the Electrical Pins Human Body Model
Eye Safety
IEC 60825-1, 2, Class 1
Specified Link Performance, T = -40 C to +85 C, 50 MBd
A
Parameter
Min
Max
50
Unit
Condition
Notes
1, 3
Link Distance with Standard POF cable
Link distance with 200 m PCS (10 MBd)
Link distance with 200 m PCS (50 MBd)
Notes:
0.1
0.1
0.1
meters
meters
meters
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
200
120
2, 3
2, 3
1. HFBR-R/EXXYYYZ is the part number for 1 mm POF. Worst-case attenuation used (0.27 dB/m for standard loss POF cable from -40 C to +85 C at
660 nm).
2. PCS, worst-case attenuation (12 dB/km from -40 C to +85 C at 650 nm).
3. The optical link performance is guaranteed only with transmitters AFBR-16xxZ and receivers AFBR-26x4Z/25x9Z.
GND
4
3
TTL Input
Data In
VEE
TX
2
1
VCC
NC
L1
GND
VCC
1 PH
Pull down
resistor
4.7 kOhm
C3
100 nF
C1
10 PF
C5
10 PF
GND
GND
GND
GND
GND
GND
GND
VCC
L2
1 PH
4
3
2
1
NC
VCC
C4
100 nF
C2
10 PF
C6
10 PF
RX
VEE
Data Out
GND
GND
TTL Output
GND
Figure 2. Recommended Transmitter and Receiver Application Circuit
7
Absolute Maximum Ratings
Parameter
Symbol
Min
-40
-40
0
Typical
Max
85
Unit
°C
Notes
Storage Temperature
Ambient Temperature
Relative Humidity
Supply Voltage
Data Input Voltage
Data Output Current
Data Rate
Ts
1
1
1
1
1
1
Tc
85
°C
RH
85
%
VCCT /VCCR
-0.5
-0.5
6
V
VIN
IO
Vcc+0.5
10
V
mA
MBd
DC
50
Notes:
1. Absolute Maximum Ratings are those values beyond which damage to the device may occur if these limits are exceeded for other than a short
period of time.
Recommended Operating Conditions
Parameter
Symbol
TA
Min
Typical
25
Max
85
Unit
°C
V
Notes
Ambient Temp
Supply Voltage
-40
2
2
2
VCCT/VCCR
3.135
4.75
3.3
3.465
5.25
5
V
Notes:
2. Recommended operating conditions are those values outside of which functional performance is not intended, device reliability is not implied,
and damage to the device may occur over an extended period of time. See Reliability Data Sheet for specific reliability performance.
Process Compatibility
Parameter
Symbol
TSOLD
tSOLD
Min
Typical
Max
260
10
Unit
°C
Notes
3, 5, 6
4, 5, 6
Solder Environment
sec
Notes:
3. Maximum temperature refers to peak temperature.
4. Maximum time refers to time spent at peak temperature.
5. Solder surface to be at least 1mm below lead frame stops.
6. Product is moisture sensitive level 3.
8
AFBR-16xxZ Transmitter
The AFBR-16xxZ transmitter incorporates a 650 nm LED and integrated driver IC in a light gray, nonconductive plastic
Versatile Link housing. Its input data is compatible with TTL logic level. This transmitter can operate from DC to 50 MBd
with any kind of data pattern using 1 mm Polymer Optical Fiber (POF). Within the specified ranges AFBR-16x4Z and
AFBR-16x9Z devices will support a BER < 10E-9.
Transmitter Electrical Characteristics
(T = -40 C to +85 C, V
A
= 3.3 V 5% or 5 V 5%)
CCT
Parameter
Symbol
Min
Typical
Max
31
Unit
mA
V
Notes
Supply Current (Optical Power ON)
Input Voltage – Low
ICCT
VIL
21
1
2
2
-0.3
2.0
0.8
Input Voltage – High
VIH
CIN
RIN
tTD
Vcc+0.3
7
V
Data Input Capacitance
Data Input Resistance
Propagation Delay
pF
k
ns
2
30
Transmitter Optical Characteristics
(T = -40 C to +85 C, V
A
= 3.3 V 5% or 5 V 5%)
CCT
Parameter
Symbol
Min
Typical
-2
Max
+2
-9
Unit
dBm
dBm
dBm
dB
Notes
Output Optical Power (peak), 1 mm POF
Output Optical Power (peak), PCS (200 μm)
Output Optical Power (Average), OFF
Extinction Ratio
PN
-4.5
-16.5
3
3
PN
-13
PS
-50
ER
10
Peak Wavelength
c
630
685
5
nm
ns
Rise Time (20%–80%)
tRT
tFT
Fall Time (20%–80%)
5
ns
Pulse Width Distortion
PWD
PWD
-3
-5
+3
+3
ns
4, 5
5, 6
Pulse Width Distortion of first pulse
Notes:
ns
1. For any type of data between DC and 50 Mbd. Typical value 21 mA for PRBS-7 pattern at 25 C at 5 V and 50 Mbaud.
2. Standard TTL compatible input.
3. Measured with polished connector end face: after 1 meter 1 mm POF, NA = 0.5, or 200 m PCS, NA = 0.37.
4. Pulse width is measured at 50% threshold using a rising edge trigger tested with PRBS-7 pattern
5. Electrical input pulse width is determined at 1.5 V and dU/dt between 1 V and 2 V shall not be less than 1 V/ns.
6. The first pulse is shorter as the LED is completely discharged. This helps to mitigate the increase of pulse width of the first pulse of the Receiver
9
AFBR-26x4Z/25x9Z Receiver
The AFBR-26x4Z/25x9Z receiver consists of a digitalizing IC with integrated photodiode to produce an output level that
is compatible with TTL logic. The integrated photodiode and the following amplifier uses a fully differential approach
with an active and a passive area for an improved EMI performance. Within the specified ranges AFBR-25x9Z and AFBR-
26x4Z devices will support a BER <10E-9.
Receiver Electrical Characteristics
(T = -40 °C to +85 °C, V
= 3.3 V 5% or 5 V 5%)
A
CCT
Parameter
Symbol
ICCR
VOL
Min
Typical
Max
Unit
mA
V
Notes
Supply Current
20
30
Data Output Voltage – Low
Data Output Voltage – High
Rise Time (10%–90%)
-0.3
2.5
0.4
1, 3
VOH
tRR
VCCR+0.3
V
1, 3
5
ns
ns
ns
ns
ns
ms
2, 3
Fall Time (10%–90%)
tFR
5
2, 3
Pulse Width Distortion
Pulse Width Distortion 1st to 3rd pulse
PWD
-4
+4
+8
30
15
3, 6, 7, 8, 11
3, 8, 9, 11
PWDinit -5
Propagation Delay
tRD
Max. Initiation time after Power up
TINT
12
Receiver Optical Characteristics
(T = -40 °C to +85 °C, V
= 3.3 V 5% or 5 V 5%)
A
CCT
Parameter
Symbol
Min
Typical
Max
Unit
dBm
dBm
dBm
dBm
nm
Notes
Input Optical Power (Peak), 1 mm POF
PIN
-22
+2
3
Input Optical Power (Peak) Off-State, 1 mm POF
Input Optical Power (Peak), PCS (200 m)
PIN_Off -40
PIN -25
3, 10
-1
3
3
Input Optical Power (Peak) Off-State, PCS (200 m) PIN_Off -44
Optical Spectrum Range
630
685
Notes:
1. Standard TTL output.
2. Measured with R = 50 k and C = 15 pF
L
L
3. Guaranteed only if optical input signal to the receiver is generated by AFBR-16xxZ, with ideal alignment to photo diode using 1mm POF (NA=0.5).
7
6. Optical input signal of 50 MBd, PRBS 2 -1 pattern and 50% duty cycle.
7. Pulse width is measured at 50% threshold using a rising edge trigger and PRBS 2 -1 pattern.
7
8. If data rate is below 1MBd the pulse width distortion would be equal to the pulse width distortion of the 1st to 3rd pulses for higher datarates.
9. The threshold of the 1st pulse of a data sequence is difficult to adjust and therefore the pulse width distortion up to the 3rd pulse is higher than
for all other pulses (worst case for the 1st pulse). This strongly depends on the quality of the rising and falling edge of the optical input. The faster
the edges the smaller the pulse width variation. Furthermore lower data rates would result in the same issue as all the pulse become 1st pulses.
10. Output low for AFBR-26x4Z and Output high for AFBR-25x9Z.
11. Because of optical pulse width spreading, the PWD limits have to be increased by 0.1 ns for each 10 m fiber length.
12. Starting point is when supply voltage passes ~2.8 V.
For product information and a complete list of distributors, please go to our web site: www.broadcom.com.
Broadcom, the pulse logo, Connecting everything, Avago Technologies, and the A logo are the trademarks of Broadcom in the United
States, certain other countries and/or the EU.
Copyright © 2005-2016 Broadcom. All Rights Reserved.
The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries. For more information, please visit www.broadcom.com.
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.
AV02-4369EN - July 25, 2016
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