Finisar Corporation, April 2017 Rev. B1 Page 1
Product Specification
RoHS-6 Compliant
10Gb/s 10km 1310nm Single Mode Datacom SFP+ Transceiver
FTLX1475D3BCL
PRODUCT FEATURES
Hot-pluggable SFP+ footprint
Supports 9.95 to 10.5 Gb/s bit rates
Power dissipation < 1W
RoHS-6 compliant (lead-free)
Commercial temperature range
-5°C to 70°C
Single 3.3V power supply
Maximum link length of 10km
Uncooled 1310nm DFB laser
Limiting electrical interface
receiver.
Duplex LC connector
Built-in digital diagnostic functions
APPLICATIONS
10GBASE-LR/LW 10G Ethernet
1200-SM-LL-L 10G Fibre Channel
Finisar’s FTLX1475D3BCL 10Gb/s Enhanced Small Form Factor Pluggable SFP+
transceivers are designed for use in 10-Gigabit Ethernet links up to 10km over Single Mode
fiber. They are compliant with SFF-84311, SFF-84322 and IEEE 802.3ae 10GBASE-
LR/LW3, and 10G Fibre Channel 1200-SM-LL-L4. Digital diagnostics monitoring is
available via a 2-wire serial interface, as specified in SFF-84725. The FTLX1475D3BCL
employs a limiting receiver.
The optical transceiver is compliant per the RoHS Directive 2011/65/EU6. See
Finisar Application Note AN-2038 for more details7.
PRODUCT SELECTION
FTLX1475D3BCL
FTLX1475D3BCL Product Sp ecification
Finisar Corporation, April 2017 Rev. B1 Page 2
I. Pin Descriptions
Pin Symbol Name/Description Ref.
1 V
EET
Transmitter Ground. 1
2 T
FAULT
Transmitter Fault. 2,3
3 T
DIS
Transmitt er Disabl e. Laser output disabled on high or ope n. 4
4 SDA 2-wire Serial Interface Data Line. 2
5 SCL 2-wire Serial Interface Clock Line. 2
6 MOD_ABS Module Absent. Grounded within the module. 5
7 RS0 Rate Select 0. Not Used. 5
8 RX_LOS Loss of Signal indication. Logic 0 indicates normal operation. 6
9 RS1
Rate Select 1. Not Used.
10 V
EER
Receiver Ground. 1
11 V
EER
Receiver Ground. 1
12 RD-
Receiver Inverted DATA out. AC Coupled.
13 RD+ Receiver Non-inverted DATA out. AC Coupled.
14 V
EER
Receiver Ground. 1
15 V
CCR
Receiver Power Supply. 7
16 V
CCT
Transmitter Power Supply. 7
17 V
EET
Transmitter Ground. 1
18 TD+ Transmitter Non-Inverted DATA in. AC Coupled.
19 TD-
Transmitter Inverted DATA in. AC Coupled.
20 V
EET
Transmitter Ground. 1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. Open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host
board if intended for use. Pull up voltage should be betw een 2.0V to Vcc + 0.3V.
3. A high output indicates a transmitter fault caused by either the TX bias current or th e TX output pow er
exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the
output is pulled to <0.8V.
4. Laser output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
5. Internally pulled down per SFF-8431 Rev 4.1.
6. LOS is ope n coll ector output . Should be pull ed up with 4.7k – 10 k on host board to a voltage between
2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
7. Internally connected.
Figure 1. Diagram of Host Board Con nector Block Pin Numbers and Names.
VeeT
VeeT
VeeR
VeeR
TD-
TD+
RD+
RD-
VccT
VccR
VeeT
VeeR
TX_Fault
SDA
SCL
MOD_ABS
RS0
RX_LOS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Towards
A
SIC
Towards
Bezel
TX_Disable
RS1
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 3
II. Absolute Maximum Ratings
Exceeding the limits below may damage the transceiver module permanently.
Parameter Symbol Min Typ Max Unit Ref.
Maximum Supply Voltage Vcc -0.5 4.0 V
Sto rage Temperature TS -40 85 C
Relative Humidity RH 0 85 % 1
1. Non-condensing.
III. Electrical Characteristics (TOP = -5 to 70 C, VCC = 3.14 to 3.46 Volts)
Parameter Symbol Min Typ Max Unit Ref.
Supply Volt age Vcc 3.14 3.30 3.46 V
Supply Current Icc 200 285 mA
Transmitter
Input differential impedance Rin 100
1
Differential da ta input swing Vin,pp 180 700 mV
Transmit Disable Voltage VD 2 Vcc V
Transmit Enable Voltage VEN Vee Vee+ 0.8 V
Receiver
Differential data output swing Vout,pp 300 850 mV 2,6
Output rise time and fall time T
r
, Tf 28 ps 3
LOS Fault VLOS faul
t
2 VccHOST V 4
LOS Normal VLOS norm Vee Vee+0.8 V 4
Power Supply Noise Tolerance VccT/VccR Per SFF-8431 Rev 4.1 mVpp 5
Notes:
1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.
2. Into 100 differential termination.
3. 20 – 80%. Measured with Module Compliance Test Board and OMA test pattern. Use of four 1’s and
four 0’s sequence in the PRBS 9 is an acceptable alternative. SFF-8431 Rev 4.1.
4. LOS is an open collector output. Should be pulled up with 4.7k – 10k on the host board. Normal
operation is logic 0; loss of signal is logic 1.
5. See Section 2.8.3 of SFF-8431 Rev 4.1.
6. The FTLX1475D3BCL uses a limiting electrical interface receiver.
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 4
IV. Optical Characteristics (TOP = -5 to 70 C, VCC3 = 3.14 to 3. 4 6 V ol ts )
Parameter Symbol Min Typ Max Unit Ref.
Transmitter
Optical Modulation Amplitude
(OMA) POMA -5.2 dBm
Average Launch Power PAVE -8.2 +0.5 dBm 1
Optical Wavelength 1260 1355 nm
Side-Mode Suppression Ratio SMSR 30 dB
Optical Extinction Ratio ER 3.5 dB
Transmitte r and Dispersion Penalt y TDP 3.2 dB
Average Launc h po wer of OFF
transmitter POFF -30 dBm
Tx Jitter Txj Per 802.3ae requirements
Relative Intensity Noise RIN -128 dB/Hz
Receiver
Receiver Sensitivity (OMA)
@ 10.3Gb/s RSENS1 -12.6 dBm 2
Stressed Receiver Sensitivity
(OMA) @ 10.3Gb/s RSENS2 -10.3 dBm 3
Average Receive Power PAVE -14.4 +0.5 dBm 1
Optical Center Wavelength
C1260 1600 nm
Receiver Reflectance Rrx -12 dB
LOS De-Assert LOSD -17 dBm
LOS Assert LOSA-30 dBm
LOS Hysteresis 0.5 dB
Notes:
1. Average power figures are informative only, per IEEE 802.3ae.
2. Valid between 1260 and 1355 nm. Measured with worst ER; BER<10-12; 231 – 1 PRBS.
3. Valid between 1260 and 1355 nm. Per IEEE 802.3ae.
V. General Specifications
Parameter Symbol Min Typ Max Units Ref.
Bit Rate BR 9.95 10.5 Gb/s 1
Bit Error Ratio BER 10-12
2
Max. Supported Link Length LMAX 10 km
1
Notes:
1. 10GBASE-LR, 10GBASE-LW, 1200-SM-LL-L 10GFC.
2. Tested with a 231 – 1 PRBS.
VI. Environmental Specifications
Finisar FTLX1475D3BCL transceivers have an operating temperature range from -5°C to
+70°C case temperature.
Parameter Symbol Min Typ Max Units Ref.
Case Operating Temperature Top -5 70 °C
Sto rage Temperature Tsto -40 85 °C
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 5
VII. Regulatory Compliance
Finisar transceivers are Class 1 Laser Products and comply with US FDA regulations.
These products are certified by TÜV and CSA to m eet the Class 1 eye s afety requirements
of EN (IEC) 60825 and the electrical safety requirements of
EN (IEC) 60950. Copies of certificates are available at Finisar Corporation upon request.
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 6
VIII. Digital Diagnostic Functions
Finisar FTLX1475D3BCL SFP+ transceivers support the 2-wire serial communication
protocol as defined in the SFP MSA1. It is very closely related to the E2PROM defined in
the GBIC standard, with the same electrical specifications.
The standard SFP serial ID provides access to identification information that describes the
transceiver’s capabilities, standard interfaces, manufacturer, and other information.
Additionally, Finisar SFP+ transceivers provide a enhanced digital diagnostic monitoring
interface, which allows real-time access to device operating parameters su ch as transceiver
temperature, laser bias current, transmitted optical power, received optical power and
transceiver supply voltage. It also defines a sophisticated system of alarm and warning
flags, which alerts end-users when particular operating parameters are outside of a factory
set normal range.
The SFP MSA defines a 256-byte memory map in E2PROM that is accessible over a
2-wire serial interface at the 8 bit address 1010000X (A0h). The digital diagnostic
monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally
defined serial ID memory map remains unchanged . The interface is identical to, and is thus
fully backward compatible with both the GBIC Specification and the SFP Multi Source
Agreement. The complete interface is described in Finisar Application Note AN-2030:
“Digital Diagnostics Monitoring Interface for SFP Optical Transceivers”.
The operating and diagnostics information is monitored and reported by a Digital
Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed
through a 2-wire serial interface. When the serial protocol is activated, the serial clock
signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the
SFP transceiver into those segments of the E2PROM that are not write-protected. The
negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def
2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to
mark the start and end of serial protocol activ ation. The memories are organized as a series
of 8-bit data words that can be addressed individually or sequentially.
For more information, please see the SFP MSA documentation1,5 and Finisar Application
Note AN-2030.
Please note that evaluation board FDB-1027 is available with Finisar ModDEMO software
that allows simple to use communication over the 2-wire serial interface.
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 7
IX. Digital Diagnostic Specifications
FTLX1475D3BCL transceivers can be used in host systems that require either internally
or externally calibrated digital diagnostics.
Parameter Symbol Min Max Units Ref.
Accuracy
Internally measured transceiver temperature
DDTem
p
erature
±5 ºC
Internally measured transceiver supply voltage
DDVolta
g
e 3
%
Measured TX bias current
DDBias 10
% 1
Measured TX output power
DDTx-Powe
2 dB
Measured RX received average optical power
DDRx-Powe
2 dB
Dynamic Range for Rated Accuracy
Internally measured transceiver temperature DDTemperature -5 70 ºC
Internally measured transceiver supply voltage DDVoltage 3.1 3.5 V
Measured TX bias current DDBias 10 90 mA
Measured TX out put p owe r DDTx-Power -8.2 +0.5 dBm
Measured RX received average optical power DDRx-Power -14.2 +0.5 dBm
Max Reporti n g Ra nge
Internally measured transceiver temperature DDTemperature -40 125 ºC
Internally measured transceiver supply voltage DDVoltage 2.8 4.0 V
Measured TX bias current DDBias 0 20 mA
Measured TX out put p owe r DDTx-Power -10 +2 dBm
Measured RX received average optical power DDRx-Power -22 +2 dBm
Notes:
1. Accuracy of measured Tx bias current is 10% of the actual bias current from the laser driver to the laser.
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 8
X. Mechanical Specifications
Finisar FTLX1475D3BCL SFP+ transceivers are compatible with the SFF-8432
specification for improved pluggable form factor, and shown here for reference purposes
only. Bail color is blue.
Figure 2. FTLX1475D3BCL Mechanical Dimensions and Tolerances.
FTLX1475D3BCL Product Specification
Finisar Corporation, April 2017 Rev. B1 Page 9
XI. PCB Layout and Bezel Recommendations
FTLX1475D3BCL Product Specification
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FTLX1475D3BCL Product Specification
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XII. Host - Transceiver Interface Block Diagram
Figure 6-Host-Module Interface
FTLX1475D3BCL Product Specification
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XIII. References
1. “Specifications for Enhanced 8.5 and 10 Gigabit Small Form Factor Pluggable Module
‘SFP+ ‘”, SFF Document Number SFF-8431, Revision 4.1.
2. “Improved Pluggable Form factor”, SFF Document Number SFF-8432, Revision 4.2,
April 18, 2007.
3. IEEE Std 802.3ae, Clause 52, PMD Type 10GBASE-LR. IEEE Standards Department.
4. American National Standard for Information Technology - Fibre Channel - 10 Gigabit
Fibre Channel, Rev 3.5, April 9, 2003.
5. “Digital Diagnostics Monitoring Interface for Optical Transceivers”. SFF Document
Number SFF-8472, Revision 11.3.
6. Directive 2011/65/EU of the European Parliament and of the Council “on the restriction
of the use of certain hazardous substances in electrical and electronic equipment”.
Certain products may use one or more exemption as allowed by the directive.
7. “Application Note AN-2038: Finisar Implementation Of RoHS Compliant
Transceivers”, Finisar Corporation, January 21, 2005.
XIV. For More Information
Finisar Corporation
1389 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
sales@finisar.com
www.finisar.com