Features
Optical transmitter (EOC) and receiver (OEC) for use in
MOST® equipment for up to 50 Mbaud
Compliant to MOST® Specification of Physical Layer
Rev 1.1
Operating temperature range of -40°C to +95°C
Reliability performance per automotive application
requirements
Lead is flash gold
Applications
Optical Transmitter and Receiver for MOST® 50 Mbaud
systems (A full description of MOST® 50 Mbaud infor-
mation and entertainment LAN system and standards
are available at www.mostcooperation.com)
MOST® is a registered trademark of MOST Corperation.
Description
AFBR-1010 Transmitter and AFBR-2010 Receiver
are packaged in 4-pin transfer molded, low-cost
packages ready for assembly into plastic fiber optic
connector receptacles compliant with MOST®
technology. The transmitter utilizes a 650 nm LED
source with integrated optics for efficient coupling
into 1 mm Polymer Optical Fiber (POF), and the
receiver contains a large area PIN diode to receive
this light. Input/output data has TTL switching levels,
compatible with MOST® Network Interface Controller
ICs. These optical components are specified for
operation over a wide -40°C to +95°C extended
temperature range, and meet the rigorous reliability
requirements of automotive applications. In the
absence of data activity, the receiver switches to very
low power mode. While in this mode, the PIN diode
can sense new data activity and switch the receiver
back to full operation.
Transmitter (EOC) Receiver (OEC)
Regulatory Compliance
Feature Test Method Performance
Electrostatic Discharge (ESD) to the JEDEC/EIA JESD22-A114-B Min ± 2000 V
Electrical Pins Human Body Model Human Body Model
Electrostatic Discharge (ESD) to the JEDEC/EIA JESD22-A115-A Min ± 400 V
Electrical Pins Machine Model Machine Model
Electrostatic Discharge (ESD) to the JEDEC/EIA JESD22-C-101-B Min ± 500 V
Electrical Pins Charged Device Model Charged Device Model
Eye Safety IEC 60825-1,2, Class 1 TUV File #: 30382990.001
AFBR-1010/AFBR-2010
Fiber Optic Transmitter and Rec eiver
for 50 MBaud MOST®
Data Sheet
2
Pin Description Transmitter
Front View Optics Up. 1 = Leftmost Pin to 4 = Rightmost Pin
Pin Name Function/Description Notes
1Data In Transmitter Data Input 1
2V
EET Transmitter Ground
3V
CCT Transmitter Power 5 V ± 5%
4CONT Connection to LED Current Control Resistor 2
Notes:
1. Logic 1 input will turn the light on and the logic 0 will turn the light off.
2. This is a digital input for the transmitter output power selector. RCN < 17.32 k will set the
transmitter to normal output power. RCR > 25.65 k will set the transmitter to reduced output
power. RCN/RCR is connected between CONT input and VCCT.
Pin Description Receiver
Front View Optics Up. 1 = Leftmost Pin to 4 = Rightmost Pin
Pin Name Function/Description Notes
1V
CCR Receiver Power 5 V ± 5%
2V
EER Receiver Ground
3Mode Out Receiver Mode Output 1
4Data Out Receiver Data Output 2
Notes:
1. This output is logic 1 high if the receiver is asleep for no light input, and logic 0 low if the
receiver is awake for valid light input levels.
2. TTL compatible data output.
Absolute Maximum Ratings
Parameter Symbol Min. Typical Max. Unit Notes
Storage Temperature Ts –40 100 °C1
Ambient Temperature, No Air Flow Tc –40 95 °C1, 2
Relative Humidity RH 0 95 % 1
Supply Voltage VCCT/VCCR –0.5 7 V 1
Data Input Voltage VIN –0.5 VCC + 0.5 V 1
CONT Input Voltage VCONT –0.5 VCC + 0.5 V 1, 3
Data Output Current IO10 mA 1, 4
Mode Output Current IM10 mA 1
Data Rate 8 45.2 50 MBaud
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. See Reliability Data Sheets for specific reliability performance.
2. Measured 1 cm outside of MOST® optical connector housing (header) on a MOST® application PCB. The optical components (EOC and OEC) are
inside the header connector assembly composed of the plastic housing and EMI shield, that is, airflow is restricted to natural convection.
3. The CONT input is a digital function. An open circuit will select lower (normal light output -3 dB), and a short circuit to VCCT will select normal light
output power. This makes the LED meet eye safety under this fault condition.
4. A safety resistor of 50 W (minimum) is to be connected between Data Out and the receiving circuitry. The receiving circuitry must be powered up
within 50 ms after Mode Out goes low to prevent permanent damage to the OEC.
3
Recommended Operating Conditions
Parameter Symbol Min. Typical Max. Unit Notes
Ambient Temperature, No Air Flow TA–40 25 95 °C1, 2
Supply Voltage VCCT/VCCR 4.75 5 5.25 V 1
CONT Input Resistor for RCN 013.5 17.32 k1, 3
Normal Output Power
CONT Input Resistor for RCR 25.65 27 Open k1, 3
Reduced Output Power Circuit
Notes:
1. 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.
2. Measured 1 cm outside of MOST® optical connector housing (header) on a MOST® application PCB. The optical components (EOC and OEC) are
inside the header connector assembly composed of the plastic housing and EMI shield, that is, airflow is restricted to natural convection.
3. Resistor values between 17.32 k - 25.65 k are not allowed.
Process Compatibility
Parameter Symbol Min. Typical Max. Unit Notes
Solder Environment TSOLD 260 °C1, 3, 4
tSOLD 10 sec 2, 3, 4
Notes:
1. Maximum temperature refers to peak temperature.
2. Maximum time refers to time spent at peak temperature.
3. Solder surface to be at least 1 mm below lead frame stops.
4. Product is moisture sensitive level 2A. See Application Note “Avago AFBR-1010 Fiber Optic Transmitter and AFBR-2010 Receiver for 50 Mbaud
MOST®–Handling.”
Transmitter Electrical Characteristics
(TA = -40°C to +95°C, VCCT = 5 V ± 5%)
Parameter Symbol Min. Typical Max. Unit Notes
Supply Current (Optical Power ON) ICCT 40 mA 1
Supply Current (Optical Power OFF) ICCT 40 mA 2
Optical Power ON Delay tON2 7µs5
Optical Power OFF Delay tOFF2 50 µs4
Input Voltage – Low VIL –0.3 0.8 V 3
Input Voltage – High VIH 2.0 VCC + 0.3 V 3
Data Input Capacitance CIN 7pF
Data Input Resistance RIN 2k
Notes:
1. For 50% duty cycle Biphase mark data and RCN = 13.5 k (normal light output control selection).
2. Data In = 0 V.
3. Standard TTL compatible inputs.
4. After a static 0 is received on Data In for tOFF2 µs, the transmitter optical output power drops to a level below -50 dBm.
5. After modulated data is received on Data In for tON2 µs, the transmitter exits the “OFF” state to enter normal operating “ON” state.
4
Transmitter Optical Characteristics
(TA = -40°C to +95°C, VCCT = 5 V ± 5%)
Parameter Symbol Min. Typical Max. Unit Notes
Output Optical Power (Average), Normal Power PN–7.5 –1.5 dBm 1, 3, 5
Delta Between Reduced and Normal Optical DPo –3.0 dB 2
Output Power
Output Optical Power (Average), OFF PS–50 dBm
Extinction Ratio ER 10 dB
Spectrum Central Wavelength lc635 675 nm 6
Spectrum RMS lw17nm7
Rise Time (20%–80%) tRT 6.0 ns 1, 3
Fall Time (20%–80%) tFT 6.0 ns 1, 3
Pulse Width Variation tPWVT 20.0 24.3 ns 1, 3, 4
Pulse Width Distortion – Average tAPWDT –1.39 +1.39 ns 1, 3, 4
Notes:
1. Resistance between CONT and VCCT pin, RCN = 13.5 k (normal light output control selection).
2. The difference between RCN = 13.5 k and RCR = 27 k (reduced versus normal output optical power control selection).
3. Using input signal to the Transmitter as defined in SP1 MOST® Specification of Physical Layer Rev 1.1 at 45.2 MBaud, UI = 22.14 ns.
4. Pulse width is measured at 50% threshold using a rising edge trigger and a MOST® worst case test pattern (WCPWV).
5. Measured with ideal alignment to LED after 1 meter 0.5 NA 1mm POF with polished face using a large area detector.
6. Central wavelength is defined as:
N
Pi li
i=l
lC = ––––––;
N
Pi
i=l
Ref: EIA/TIA standard FOTP-127/61.1, 1991.
7. Spectrum RMS is defined as: 1
2. N 05
2
>> Pi li>>
>>i=l>>
lW = >>–––––– >= lC>
>> N >>
>> Pi>>
4/ i=l17
Ref: EIA/TIA standard FOTP-127/61.3, 1991.
2
2
5
Receiver Electrical Characteristics
(TA = -40°C to +95°C, VCCR = 5 V ± 5%)
Parameter Symbol Min. Typical Max. Unit Notes
Supply Current – Awake ICCR 35 mA 1
Supply Current – Sleep ICCR 20 µA2
Data Output Voltage – Low VOL –0.3 0.4 V 3, IOL = 1.6 mA
Data Output Voltage – High VOH 2.5 3.0 VCCR + 0.3 V 3, IOH = –150 µA
Mode Output Voltage – Low VOLM –0.3 0.0 0.5 V IOL = 2.4 mA
Mode Output Voltage – High VOHM VCCR –1 VCCR + 0.3 V IOH = –1 mA
Rise Time (10%–90%) tRR 9.9 ns 1, 4, 6
Fall Time (10%–90%) tFR 9.9 ns 1, 4, 6
Pulse Width Variation tPWVR 16.5 31.0 ns 1, 4, 5, 6
Pulse Width Distortion – Average tAPWDR –3.3 7.0 ns 1, 4, 5, 6
Notes:
1. Measured using Input signal condition as defined by SP3 MOST® Specification of Physical Layer Rev 1.1 at 45.2 MBaud, UI = 22.14 ns.
2. Optical input is < -40 dBm, and Mode Out IM = 0.
3. Standard TTL output.
4. Measured with RL = 50 k and CL = 15 pF.
5. Pulse width is measured at 1.5 V threshold using a rising edge trigger and a MOST® worst case test pattern (WCPWV).
6. Optical power generated by a standard Avago Transmitter, with ideal alignment to the photodiode using a 1 mm POF (NA = 0.5).
Receiver Optical Characteristics
(TA = -40°C to +95°C, VCCR = 5 V ± 5%)
Parameter Symbol Min. Typical Max. Unit Notes
Input Optical Power (Average) PIN –25 –2 dBm 1
Optical Spectrum Range lc630 685 nm
Input Optical Power for light-off state PINSQ –40 –25 dBm 2
Notes:
1. All Receiver input condition to be as specified in SP3 of MOST® Specification of Physical Layer Rev 1.1 at 45.2 MBaud, UI = 22.14 ns.
2. Light-off state means Mode Output Voltage is high and Data Output Voltage is low.
Receiver Timing Characteristics
(TA = -40°C to +95°C, VCCR = 5 V ± 5%)
Parameter Symbol Min. Typical Max. Unit Notes
Mode Deassert Time (On to Off) tD2ms
Squelch Time (Signal OFF Delay) tOFF4 2ms
Wakeup Time (Signal ON Delay) tON4 3ms1
Note:
1. Receiver is designed to only respond to modulated light input.
6
Part Number Options
Part Number Part Description
AFBR-1010 Transmitter
AFBR-2010 Receiver
AFBR-1010S Transmitter – Short Lead
AFBR-2010S Receiver – Short Lead
AFBR-1010T Transmitter – 90° Bent Lead
AFBR-2010T Receiver – 90° Bent Lead
47 k
47 k
47 k
47 k
MOST NIC
150 R
150 R
27 k
FOT - HOUSING
+
+
FERRITE
TD
1
TG
2
TV
3
TC
4
RV
5
RG
6
RM
7
14
13
12
11
10
9
RD
GND
GND
GND
GND
GND
GND
8
10 µF
0.1 µF
0.1 µF
27 k
V
CC
SW
10 µF
+10 µF
FERRITE
TX
RX
STATUS
HOLD
V
CC
V
CC
SW
V
CC
-3 dB
5 V SWITCHING POWER
SWITCH
HOLD
V
CC
5 V CONTINUOUS
5 V SWITCHED
V
CC
SW
Reference Design Schematic
7
Package Dimensions
Transmitter (AFBR-1010)
Bend Option (AFBR-1010T)Short Lead Option (AFBR-1010S)
1
5.1
(4x) 9.2
2 3
A
4
NOTE:
UNIT = mm, TOLERANCE = ± 0.1 mm
UNLESS OTHERWISE SPECIFIED.
(4X) 0.25 ± 0.05
(4X) 0.5
(4X) 7.08 ± 0.30
+3.5°
2.5°
(4X) 6.20 ± 0.20 (4X) 91.5°
1
5.1
2.1
5.7
(4x) 18.0
(4x) 0.50 ± 0.05
2.54
B
B
2.94 2.03
2.72
SECTION B-B
PIN NO. PIN CONNECTION
1
2
3
4
V
IN
GND
V
CC
CONT
2.12
1.57
6.80 ± 0.10
4.97 ± 0.05
2
2.54
3
A
2.54
4
(4X) 0.7
NOTE:
UNIT = mm, TOLERANCE = ± 0.1 mm
UNLESS OTHERWISE SPECIFIED.
(2X) 0.8 ± 0.05
R 0.3
3.7 ± 0.05
(4X) 0.25 ± 0.05
2.45
7.0
Receiver (AFBR-2010)
Bend Option (AFBR-2010T)Short Lead Option (AFBR-2010S)
8
1
5.1
(4x) 9.2
2 3
A
4
NOTE:
UNIT = mm, TOLERANCE = ± 0.1 mm
UNLESS OTHERWISE SPECIFIED.
(4X) 0.25 ± 0.05
(4X) 0.5
(4X) 7.08 ± 0.30
+3.5°
2.5°
(4X) 6.20 ± 0.20 (4X) 91.5°
1
5.1
2.1
5.7
(4x) 18.0
(4x) 0.5 ± 0.05
2.54
B
B
2.94
2.72
SECTION B-B
PIN NO. PIN CONNECTION
1
2
3
4
V
CC
GND
MODEOUT
V
OUT
2.12
1.57
6.8 ± 0.10
4.97 ± 0.05
2
2.54
3
A
2.54
4
(4X) 0.7
NOTE:
UNIT = mm, TOLERANCE = ± 0.1 mm
UNLESS OTHERWISE SPECIFIED.
(2X) 0.8 ± 0.05
R 0.3
3.7 ± 0.05
(4X) 0.25 ± 0.05
2.45
7.0
Device Marking
LL X
YWW
TRANSMITTER
PRODUCT CODE
X = A for AFBR-1010
B = for AFBR-1010S
C = for AFBR-1010T
DATE CODE = WW
WW = 01 to 52
LOT # = LL
Eg.
LOT 1 = AA
LOT 2 = AB
YEAR = Y
Eg.
2005 = 5
LL X
YWW
RECEIVER
PRODUCT CODE
X = N for AFBR-2010
P = for AFBR-2010S
R = for AFBR-2010T
For product information and a complete list of distributors, please go to our website: www.avagotech.com
Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries.
Data subject to change. Copyright © 2006 Avago Technologies Limited. All rights reserved.
AV01-0033EN June 27, 2006