AFBR-1013/AFBR-2013
Fiber Optic Transmitter and Receiver
for 50 MBaud MOST®
Data Sheet
Features
Solderable with re ow process acc. JEDEC standard
J-STD-020D
Operating @ 3.3V or 5V (+/-5% each) Power supply
Operating temperature range -40°C to +95°C
TTL Data Input/ Output (Logic to Light Function)
Power down mode
During the low power mode a receiver STATUS-pin
indicates if modulated light is received (Light on ->
STATUS = low). The power supply of the whole MOST
device can be switched on with this Status-pin.
Duty Cycle Adjust (DCA), yields to enhanced SP1 input
range
650nm for working in a low attenuation range of PMMA
Fiber
-25dBm guaranteed sensitivity @ 650nm
Fully compliant to “MOST® Speci cation of Physical
Layer Rev 1.1”
RoHS compliant (Lead free and halogen free)
Lead is  ash gold
Low power consumption
Photo current sensing, network activity detection and
Low Power Mode (ICC < 10μA)
Additional Low Power Mode (ICC < 15μA) for the
transmitter when SP1 input is low
Signal detect and Status Output
Pulse width control
Description
AFBR-1013 Transmitter and AFBR-2013 Receiver are de-
signed to transmit/ receive up to 25MBit/s optical data
which are biphase coded (up to 50Mbaud). Both are
packaged in 4-pin transfer molded, low-cost packages
ready for assembly into MOST® plastic  ber optic connec-
tor receptacles.
The transmitter utilizes a 650 nm LED source with inte-
grated optics for e cient coupling into 1mm Polymer Op-
tical Fiber (POF), and the receiver contains a high speed
PIN diode to receive this light.
Input/output data has TTL switching levels, compatible
with MOST® Network Interface Controller ICs.
These optical components are speci ed for operation
over a -40°C to +95°C temperature range, and reliability
requirements of automotive applications. It is allowed to
process the AFBR-1013/-2013 devices with re ow solder-
ing. In the absence of data activity, the receiver switches
to very low power mode. While in this mode, the PIN di-
ode can sense new data activity and switch the receiver
back to full operation.
Applications
Optical Transmitter and Receiver for MOST® 50 Mbaud
systems (a full description of the MOST® 50 Mbaud
system is available at www.mostcooperation.com)
2
Absolute maximum ratings [2]
Parameter Symbol Min. Max. Units
Supply Voltage [1] VCCMax -0.5 6.0 V
Storage Temperature TSTG -40 110 °C
Voltage at any PIN -0.5 VCC+0.5 V
Electrostatic Voltage Capability [3] ESD 2.0 kV
Notes:
1. Maximum supply voltage without causing damage
2. For information regarding the absolete solder ratings see Application Note 5458 (Handling, Storage, Operating and Processing)
3. ESD Capability for all Pins HBM (human body model) according JESD22-A114B
Recommended operating conditions
Parameter Symbol Min. Max. Units
Supply Voltage low VCC_l 3.135 3.465 V
Supply Voltage high VCC_hl 4.75 5.25 V
Operating temperature (ambient) [1] TA-40 95 °C
Notes:
1. For more information see Application Note 5458 (Handling, Storage, Operating and Processing)
All the data in this speci cation refers to the operating conditions above and over lifetime unless otherwise stated.
Part Number Options
Part Number Part Description Solder Heat Resistance
AFBR-1013S/AFBR-2013S Transmitter/Receiver – Short Leads Re ow soldering acc. JEDEC standard J-STD-020D
(for more information see Application Note 5458)
AFBR-1013L/AFBR-2013L Transmitter/Receiver – Long Leads
3
AFBR-1013 (Transmitter)
DC Characteristics
Parameter Symbol Min. Typ. Max. Units
Low Level Input voltage VIL -0.3 0.8 V
High Level Input Voltage VIH 2.0 VCC+0.3 V
Input Leakage Current
(VCC = 5.0V; VI = 0V or VI =5.0V)
IL+/-20 μA
Input Capacitance CI7pF
Input Resistance RI2kΩ
Supply Current Full Power Mode [1] ICC 25 mA
Supply Current Low Power Mode [2] ILP2 15 μA
Notes:
1. The current through the LED and therefore the optical output power and overall power consumption depends on the settings of REXT.
The nominal value for REXT is 15k. With REXT = 30k the optical output power is about -3dB of the nominal value.
Important: The external resistor of REXT must be within the range of 13.5kΩ to 33kΩ. For values out of this range functionality may not be given over the
whole temperature range and the device lifetime.
2. If the transmitter is in full power mode it is switched OFF 1ms (max) after Tx DATA is low. If the transmitter is in low power mode it is switched ON
6ms (max) after Tx Data transmission starts.
AC Electrical Characteristics
Parameter Symbol Min. Typ. Max. Units
Power Up Time TPU 0.016 6 ms
Data Power Down Time TPD 0.01 1.0 ms
Optical Signal Characteristics 45.158Mbaud (44.1kHz)
(22.5 MBit/s MOST Data, VCC = 3.135 … 3.465V or 4.75 … 5.25V, REXT = 15kOhm)
Parameter Symbol Min. Typ. Max. Units
Peak wavelength λPeak 630 650 685 nm
Temperature coe cient λPEAK TCλ0.16 nm/K
Spectral Bandwidth (FWHM) Deltaλ20 30 nm
Average Output Power coupled into plastic  ber [1] Popt -8.0 -5.2 -2.0 dBm
Average Output Power coupled into plastic  ber
(if REXT = 13.5k is used instead of REXT =15k) [1]
Popt -7.5 -4.7 -1.5 dBm
Optical Output Power “Light o[2] POFF -50 dBm
Optical Rise Time (20% - 80%) [4] tr2.5 5.98 ns
Optical Fall Time (80% - 20%) [4] tf3.5 5.98 ns
Extinction Ratio [4,6] re10 15 dB
Pulse Width Variation [3,4,5] tPWV 20.0 24.29 ns
Average Pulse Width Distortion [3,4] tAPWD -1.4 1.4 ns
Data Dependent Link Jitter [3,4] tDDJ 0.2 0.77 ns
Uncorrelated Link Jitter [3,4] tUJ 0.05 0.33 ns
Positive Overshoot within 0UI … 2/3UI [4,6] -20 40 %
Negative Overshoot within -1UI … -1/4UI [4,6] -10 20 %
High Level Signal Ripple between 2/3UI and 3/4UI -10 10 %
Notes:
1. Average value when transmitting modulated light @signal timing parameters. The output power coupled into plastic  ber Popt is measured with
a large area detector at the end of 30cm POF  ber with a NA = 0.5 which is ideally coupled to the transmitter
2. Average value when signal on Tx_Data is low
3. The electrical input signal has to ful ll the following requirements: tpwv(min) = 20.1ns, tpwv(max) = 24.1ns, ttAPWD(min) = -1.5ns and ttAPWD(max) =
1.5ns, tDDJ(max) = 0.22ns, tUJ(max) = 0.10ns
4. Characterized with Avago Characterization Boards
5. Limits for 2UI are 42.2 … 46.4ns and for 3UI they are 64.3 … 68.5ns.
6. Top and Base level measured at least over 10UIs.
4
Optical Signal Characteristics 49.152Mbaud (48kHz)
(24.576 MBit/s MOST Data, VCC = 3.135 … 3.465V or 4.75 … 5.25V, REXT = 15k)
Parameter Symbol Min. Typ. Max. Units
Peak wavelength λPeak 630 650 685 nm
Temperature coe cient λPEAK TCλ0.16 nm/K
Spectral Bandwidth (FWHM) Deltaλ20 30 nm
Average Output Power coupled into plastic  ber [1] Popt -8.0 -5.2 -2.0 dBm
Average Output Power coupled into plastic  ber
(if REXT = 13.5k is used instead of REXT =15k) [1]
Popt -7.5 -4.7 -1.5 dBm
Optical Output Power “Light o[2] POFF -50 dBm
Optical Rise Time (20% - 80%) [4] tr2.5 5.49 ns
Optical Fall Time (80% - 20%) [4] tf3.5 5.49 ns
Extinction Ratio [4,6] re10 15 dB
Pulse Width Variation [3,4,5] tPWV 18.4 22.3 ns
Average Pulse Width Distortion [3,4] tAPWD -1.28 1.28 ns
Data Dependent Link Jitter [3,4] tDDJ 0.2 0.71 ns
Uncorrelated Link Jitter [3,4] tUJ 0.05 0.31 ns
Positive Overshoot within 0UI … 2/3UI [4,6] -20 40 %
Negative Overshoot within -1UI … -1/4UI [4,6] -10 20 %
High Level Signal Ripple between 2/3UI and 3/4UI -10 10 %
Notes:
1. Average value when transmitting modulated light @signal timing parameters. The output power coupled into plastic  ber Popt is measured with
a large area detector at the end of 30cm POF  ber with a NA = 0.5 which is ideally coupled to the transmitter
2. Average value when signal on Tx_Data is low
3. The electrical input signal has to ful ll the following requirements: tpwv(min) = 18.4ns, tpwv(max) = 22.3ns, ttAPWD(min) = -1.28ns and ttAPWD(max) =
1.28ns, tDDJ(max) = 0.2ns, tUJ(max) = 0.09ns
4. Characterized with Avago Characterization Boards
5. Limits for 2UI are 38.72 … 42.66ns and for 3UI they are 59.06 … 63.01ns.
6. Top and Base level measured at least over 10UIs.
5
Device Marking Transmitter
Transmitter Long Lead Option (AFBR-1013L)
Package Dimensions Transmitter
Transmitter Short Lead Option (AFBR-1013S)
Unit: mm
For more information see package outline drawing
Pin Description Transmitter
Pin Name Function/Description
1 Data In = Data Input
2 GND = Ground
3V
CC = Power 3.3V or 5V (+/-5% each)
4 CONT = Connection to LED Current Control Resistor
6
AFBR-2013 (Receiver)
Optical Input Signal Characteristics
(22.5 MBit MOST Data, VCC = 3.135 … 3.465V or 4.75 … 5.25V)
Parameter Symbol Min. Typ. Max. Units
Peak wavelength of input signal λPeak 630 650 685 nm
FWHM of input signal Δλ 30 nm
Receiveable optical power range for data recovery [1,2] Popt -25 -2 dBm
Receiveable optical power for switching to low power
mode [1]
POFF -40 -25 dBm
Notes:
1. Optical power data are average values when using any MOST25 optical transmitter, measured at the end of a plastic optical  ber with metal insert
(diameter 2.90 +/- 0.02mm). The transmitter data is biphase coded.
2. Measured with worst case pattern a BER ≤ 10-9 can be reached
DC Electrical Characteristics
Parameter Symbol Min. Typ. Max. Units
Supply Voltage low VCC_l 3.135 3.3 3.465 V
Supply Voltage high VCC_hl 4.75 5 5.25 V
Low Level Output Voltage Data and Status Pin [1] VOL 0.4 V
High Level Output Voltage Data Pin [1] VOH 2.5 3.3 VCC+0.3 V
High Level Output Voltage Status Pin [1] VOH 2.5 VCC V
Supply Current Full Power Mode ICC, FPM 15 mA
Supply Current Low Power Mode ICC, LPM 10 μA
Notes:
1. Resistor load must not be smaller than 50k
7
AC Electrical Characteristics 45.158Mbaud (44.1kHz)
Parameter Symbol Min. Typ. Max. Units
Output Rise Time @VCC_l [1,4,6] tr_l 69ns
Output Rise Time @VCC_h [1,4,6] tr_h 59ns
Output Fall Time @VCC_l [1,4,6] tf_l 69ns
Output Fall Time @VCC_h [1,4,6] tf_h 59ns
Output Pulse Width Variation 1UI [1,2,3,4,5] tPWV 16.5 31 ns
Output Average Pulse Width Distortion [1,2,3,4] tAPWD -3.3 7 ns
Data Dependent Link Jitter [2,3,4] tDDJ 3.3 ns
Uncorrelated Link Jitter [2,3,4] tUJ 1.0 ns
Power-up time at detection of rising VCC tPUO 0.1 6 ms
Power-up time from low power mode tPU 0.5 6 ms
Low Power mode timer delay tLPM 0.005 2 ms
Notes:
1. Maximum Capacitive Load is 10pF
2. MOST Data 44.1kHz FS corresponds to a 45MBaud data stream
3. The optical input signal has to ful ll following requirements: tPWV(min) = 20.0ns, tPWV(max) = 24.3ns; tAPWD(min) = -1.4ns and tAPWD(min) = 1.4ns,
tDDJ(max) = 0.77ns, tUJ(max) = 0.33ns, Positive Overshoot within 0UI…2/3UI = -20…40%, Extinction Ratio min = 10dB. Variations within those limits
do not change tPWV signi cantly.
4. Characterized with Avago Characterization Boards
5. Limits for 2UI are 38.6 … 53.1 and for 3UI they are 60.8 … 75.2ns.
6. Output Rise Time from 10% - 90%, Output Fall Time from 90% - 10%
AC Electrical Characteristics 49.152Mbaud (48kHz)
Parameter Symbol Min. Typ. Max. Units
Output Rise Time @VCC_l [1,4,6] tr_l 69ns
Output Rise Time @VCC_h [1,4,6] tr_h 59ns
Output Fall Time @VCC_l [1,4,6] tf_l 69ns
Output Fall Time @VCC_h [1,4,6] tf_h 59ns
Output Pulse Width Variation 1UI [1,2,3,4,5] tPWV 15.12 28.48 ns
Output Average Pulse Width Distortion [1,2,3,4] tAPWD -3 6.4 ns
Data Dependent Link Jitter [2,3,4] tDDJ 3.0 ns
Uncorrelated Link Jitter [2,3,4] tUJ 0.9 ns
Power-up time at detection of rising VCC tPUO 0.1 6 ms
Power-up time from low power mode tPU 0.5 6 ms
Low Power mode timer delay tLPM 0.005 2 ms
Notes:
1. Maximum Capacitive Load is 10pF
2. MOST Data 48kHz FS corresponds to a 49.152MBaud data stream
3. The optical input signal has to ful ll following requirements: tPWV(min) = 18.37ns, tPWV(max) = 22.32ns; tAPWD(min) = -1.28ns and tAPWD(min) = 1.28ns,
tDDJ(max) = 0.71ns, tUJ(max) = 0.3ns, Positive Overshoot within 0UI…2/3UI = -20…40%, Extinction Ratio min = 10dB. Variations within those limits
do not change tPWV signi cantly.
4. Characterized with Avago Characterization Boards
5. Limits for 2UI are 35.47 … 48.825 and for 3UI they are 55.81 … 69.17ns.
6. Output Rise Time from 10% - 90%, Output Fall Time from 90% - 10%
8
Receiver Long Lead Option (AFBR-2013L) Device Marking Receiver
Unit: mm
For more information see package outline drawing
Pin Description Receiver
Pin Name Function/Description
1V
CC = Power 3.3V or 5V (+/-5% each)
2 GND = Ground
3 MODEOUT = Mode Output
4V
OUT = Data Output
Package Dimensions Receiver
Receiver Short Lead Option (AFBR-2013S)
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Data subject to change. Copyright © 2005-2012 Avago Technologies. All rights reserved.
AV02-2221EN - March 22, 2012