AVAGO AFBR

AFBR-1150L / AFBR-2150L
Fiber Optic Transmitter and Receiver
for 150 Mbit/s MOST
Data Sheet
Description
Features
MOST150 transmitter and receiver are designed to transmit/ receive up to 150 MBit/s optical data which are DCA
coded. Both are packaged in 7-pin transfer molded, lowcost packages ready for assembly into MOST plastic
fiber optic connector receptacles.
• Optical transmitter and receiver for MOST150
applications with a maximum data rate of 150 Mbit/s
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 high
speed PIN diode to receive this light.
Input/output data has LVDS switching levels, compatible
with MOST Network Interface Controller ICs.
These optical components are specified for operation
over a -40 °C to +95 °C temperature range, and meet the
reliability requirements of automotive applications. In the
absence of data activity, transmitter and receiver switch
to very low power mode. While in this mode, the devices
can sense new data activity and switch back to full operation.
Related Documents
• MOST150 oPHY
Sub-Specification
Automotive
Physical
Layer
• 3.3 V power supply voltage
• Operating temperature range -40 °C to +95 °C
• Transmitter: driver IC and LED with 650 nm for working
in low attenuation range of PMMA fiber, sleep- and
wake-up-function, differential LVDS input stage.
• Receiver: photodiode and IC with pre-amp, post-amp,
digitizer, sleep – and wake-up-function, differential
LVDS output stage.
• Mechanical assembly: 7-pin transfer molded sidelooker package with integrated lenses, 1.27 mm pitch
between pin.
• Compliance to MOST150 oPHY Automotive Physical
Layer Sub-Specification
• RoHS compliant (Lead free and halogen free)
Applications
Optical transmitter and receiver for MOST150 Mbit/s
systems (a full description of the MOST 150 system is
available at www.mostcooperation.com)
Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Units
Supply Voltage [1]
VCCMax
-0.5
4.0
V
Storage Temperature
TSTG
-40
105
°C
Soldering Temperature (distance to package >3mm; t≤10s) [3]
TS
260
°C
VCC+0.5
V
2.0
kV
Voltage at any PIN
-0.5
Electrostatic Voltage Capability [2]
ESD
Notes:
1. Maximum supply voltage without causing damage
2. ESD Capability for all Pins HBM (human body model) according JESD22-A114B
3. For more information regarding the solder process see Application Note Handling, Storage, Operating and Processing
Recommended Operating Conditions
Parameter
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
VCC
3.135
3.3
3.465
V
Data Rate DCA coded [1]
DR
135
150
Mbit/s
Ambient Temperature Range [2]
TA
-40
95
°C
Notes:
1. Description of DCA coding in MOST150 oPHY Automotive Physical Layer Sub-Specification section 4.2 Network Coding
2. For more information see Application Note Handling, Storage, Operating and Processing
All the data in this specification refers to the operating conditions above and over lifetime unless otherwise stated.
AFBR-1150L (Transmitter)
Transmitter Electrical Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
VCC
3.135
3.3
3.465
V
Differential Input Voltage [1]
VDIN-DIFF
100
600
mV
Input Voltage Range to Circuit Common [1]
VDIN
0
2.4
V
DINP DINN Input Current
IDIN
20
μA
Input High (/RST, -3dB)
VIH-LVC
2
VCC+0.3
V
Input Low (/RST, -3dB)
VIL-LVC
-0.3
0.8
V
Current Consumption in Power On State
IFPM
38 2
52
mA
12 2
30
μA
Current Consumption in Power Off State [3]
ILPM
Notes:
1. All LVDS parameter have to fit LVDS specification TIA/EIA-644-A, absolute value of differential voltage, equal to single ended voltage level at each input
DINP, DINN, input rise and fall times according the MOST oPHY SP1 input eye.
2. Typical values at T = 25°C and VCC = 3.30 V
3. /RST = Low and no input data
2
Transmitter Optical Signal Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Optical Output Power (average) [1, 2]
POPT
-7.8
-1.5
dBm
Extinction Ratio
ER
10
dB
Optical Rise Time (20%-80%)
tR
1.7
ns
Optical Fall Time (80%-20%)
tF
1.7
ns
Center Wavelength [3]
λC
635
650
675
nm
Spectral Bandwidth RMS [3]
λW
17
nm
Transferred Jitter [4]
JTR
Total Jitter [5, 6]
Positive Overshoot [7]
Negative Undershoot [7]
112
ps RMS
JT
0.1 [8]
0.3
UI
OS
40
%
US
-20
%
Notes:
1. Average value when transmitting modulated light at signal timing parameters. The output power coupled into plastic fiber Popt is measured with
a large area detector at the end of 30 cm POF fiber with a NA = 0.5 which is ideally coupled to the transmitter.
2. MOST Stress Pattern has been used for characterization
3. Center wavelength and spectral bandwidth RMS are defined as:
Ref: EIA/TIA standard FOTP-127/61.1 and 61.3, 1991.
4. Using a Jitter Filter specified in MOST150 oPHY Automotive Physical Layer Sub-Specification section 5.2
5. Using a Golden PLL specified in MOST150 oPHY Automotive Physical Layer Sub-Specification section 5.1
6. Maximum allowed total jitter is derived from eye definition specified in MOST150 oPHY Automotive Physical Layer Sub-Specification section 6.2
(SP2). The total jitter at the electrical input of the Transmitter has to be < 0.15 UI.
7. Parameters are normalized and calculated relatively to the measured b1 (top) and b0 (base) levels, where b1 = 100% and b0 = 0%.
8. Typical jitter value is measured with MOST stress pattern input signal with best possible jitter at typical conditions VCC = 3.30 V, T = 25 °C
Transmitter Timing Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power On Delay
tON
100
μs
Power Off Delay
tOFF
2
μs
Eye Safety
The transmitter device emits light with a wavelength of 650 nm (red). This product is designed to avoid damage to the
unprotected eye. To indicate the classification of the light source, a label as depicted in the subsequent figure can be
used. However these labels are not mandatory on the product according to IEC 60825 version 1.2 paragraph 1.1.
3
AFBR-2150L (Receiver)
Receiver Optical Input Signal Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Average optical input power range for ON-state [1, 2]
PON
-22.5
-2
dBm
Average optical input power range for OFF-state [1]
POFF
-35
dBm
Center Wavelength [3]
λC
635
675
nm
Spectral Bandwidth RMS [3]
λW
17
nm
650
Notes:
1. Optical power data are average values when using any MOST150 optical transmitter, measured at the end of a plastic optical fiber with metal insert
(diameter 2.90 +/- 0.02 mm), which is ideally coupled to the receiver. The transmitter data is MOST Stress Pattern.
2. Within this optical power range the entire subsequent specifications are met and a BER ≤ 10-9 can be reached.
3. Center wavelength and spectral bandwidth RMS are defined as:
Ref: EIA/TIA standard FOTP-127/61.1 and 61.3, 1991.
Receiver Electrical Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
VCC
3.135
3.3
3.465
V
Differential Output Voltage [7]
VDO-DIFF
250
400
mV
Output Offset Voltage [7]
VDO-OS
1.2
V
Status Output Voltage High
VOH-STAT
2.4
V
Status Output Voltage Low [1]
VOL-STAT
0.4
V
21.5 2
35
mA
Current Consumption in Power On State
IFPM
Current Consumption in Power Off State
ILPM
1 2
30
μA
Electrical Rise Time (20%-80%) [7]
tR
1.02
ns
Electrical Fall Time (80%-20%) [7]
tF
1.02
ns
Transferred Jitter [3]
JTR
230
ps RMS
0.25 [6]
0.55
UI
Total Jitter [4, 5]
JT
Notes:
1. For 8 kΩ pull up
2. Typical values at T = 25 °C and VCC = 3.30 V
3. Using a Jitter Filter specified in MOST150 oPHY Automotive Physical Layer Sub-Specification section 5.2
4. Using a Golden PLL specified in MOST150 oPHY Automotive Physical Layer Sub-Specification section 5.1
5. Maximum allowed total jitter is derived from eye definition specified in [1] section 6.4 (SP4). The total jitter at the optical output of the Transmitter
has to be < 0.30 UI. The optical signal may be sent through an attenuator and thereafter a max. 15 m POF (NA = 0.5) with a mode mixer.
6. Typical jitter value is measured with MOST stress pattern input signal with best possible jitter at typical conditions VCC = 3.30 V, T = 25 °C and
minimal PON
7. The parameters of the LVDS data output are compliant to LVDS specification TIA/EIA-644-A
Receiver Timing Characteristics
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power On Delay
tON
10
ms
Power Off Delay
tOFF
1
ms
4
Package Dimensions
8.93
7.2
2.72
1.57
4.97
2.94
optical axes
1.07
18.0
5.1
5.9
optical axes
1.07
0.5 (14×)
1 2 3 4 5 6 7
pitch 1.27 mm
1 2 3 4 5 6 7
pitch 1.27 mm
0.25
For more information see package outline drawing
Pin Description AFBR-1150L (Transmitter)
Pin
Pin-Name
Description
1
/RST
Reset, low active; LVCMOS input
2
REXT
Analog input for external reference resistor (10K 1%) to GND
3
DIN-
Negative TX data input, LVDS
4
DIN+
Positive TX data input, LVDS
5
GND
Power supply ground
6
VCC
Positive power supply, +3.3 V
7
-3DB
3dB reduced optical output power (must be high for > 4 ms)
Pin Description AFBR-2150L (Receiver)
Pin
Pin-Name
Description
1
STATUS
Optical signal detect indication
Optical signal detected: Logic Low (0 V)
No optical signal detected: Logic High (3 V)
2
VCC
Positive power supply, +3.3 V (must be connected)
3
GND
Power supply ground
4
DO-
Negative RX data output, LVDS
5
DO+
Positive RX data output, LVDS
6
REXT
Analog input for external reference resistor (47K 1%) to GND
7
VCC
Positive power supply, +3.3V (must be connected)
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Data subject to change. Copyright © 2005-2013 Avago Technologies. All rights reserved.
AV02-2343EN - February 19, 2013