Product Specification
RoHS-6 Compliant
10Gb/s 10km Single Mode Bidirectional Datacom SFP+ Transceiver
FTLX2071D327/FTLX2071D333
PRODUCT FEATURES
Hot-pluggable SFP+ footprint
Bidirectional 10G over single
strand single mode fiber
Supports 9.95 to 10.5Gb/s bit rates
Power dissipation <1W
RoHS-6 compliant (lead-free)
Industrial temperature range
-40°C to 85°C
Single 3.3V power supply
Maximum link length of 10km
Uncooled DFB
Receiver limiting electrical
interface
Single LC connector
Built-in digital diagnostic functions
APPLICATIONS
10GBASE-LR/LW 10G Ethernet
1200-SM-LL-L 10G Fibre Channel
Finisar’s FTLX2071D327/FTLX2071D333 10Gb/s Enhanced Small Form Factor Pluggable
SFP+ transceivers are designed for use in 10-Gigabit Ethernet links up to 10km over a
single-strand Single Mode fiber. This capability doubles the capacity of installed legacy
single mode fiber links. They are compliant with SFF-8431
1
and IEEE 802.3ae 10GBASE-
LR/LW
3
, and 10G Fibre Channel 1200-SM-LL-L
4
. Digital diagnostics functions are
available via a 2-wire serial interface, as specified in SFF-8472
5
.
The transceiver is a “limiting module”, i.e., it employs a limiting receiver. Host board
designers using an EDC PHY IC should follow the IC manufacturer’s recommended
settings for interoperating the host-board EDC PHY with a limiting receiver SFP+ module.
The optical transceiver is compliant per the RoHS Directive 2011/65/EU
6
. See Finisar
Application Note AN-2038 for more details
7
.
PRODUCT SELECTION
Part Number
FTLX2071D327
FTLX2071D333
Wavelength
1271 nm
1331 nm
Finisar Corporation - October 2015
Rev. C1
Page 1
FTLX2071D3xx Product Specification
I.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Descriptions
Symbol
V
EET
T
FAULT
T
DIS
SDA
SCL
MOD_ABS
RS0
RX_LOS
RS1
V
EER
V
EER
RD-
RD+
V
EER
V
CCR
V
CCT
V
EET
TD+
TD-
V
EET
Name/Description
Transmitter Ground
Transmitter Fault
Transmitter Disable. Laser output disabled on high or open.
2-wire Serial Interface Data Line
2-wire Serial Interface Clock Line
Module Absent. Grounded within the module
Rate Select 0. Not Used.
Loss of Signal indication. Logic 0 indicates normal operation.
Rate Select 1. Not Used.
Receiver Ground
Receiver Ground
Receiver Inverted DATA out. AC Coupled.
Receiver Non-inverted DATA out. AC Coupled.
Receiver Ground
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground
Transmitter Non-Inverted DATA in. AC Coupled.
Transmitter Inverted DATA in. AC Coupled.
Transmitter Ground
Ref.
1
2
3
2
2
2
4
5
4
1
1
1
1
1
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. T
is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on
FAULT
3.
4.
5.
the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high
output indicates a transmitter fault caused by either the TX bias current or the TX output power
exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the
output is pulled to <0.8V.
Laser output disabled on T
DIS
>2.0V or open, enabled on T
DIS
<0.8V.
Internally pulled down per SFF-8431 Rev 4.1.
LOS is open collector output. Should be pulled up with 4.7k – 10k on host board to a voltage
between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
VeeT
1
VeeT
TD-
2
TX_Fault
TD+
3
TX_Disable
VeeT
4
SDA
VccT
20
19
18
17
16
Towards
Bezel
5
SCL
VccR
15
6
MOD_ABS
VeeR
14
Towards
ASIC
7
RS0
RD+
13
8
RX_LOS
RD-
12
9
RS1
VeeR
11
VeeR
10
Figure 1. Diagram of Host Board Connector Block Pin Numbers and Names.
Finisar Corporation – October 2015
Rev. C1
Page 2
FTLX2071D3xx Product Specification
II. Absolute Maximum Ratings
Exceeding the limits below may damage the transceiver module permanently.
Parameter
Maximum Supply Voltage
Storage Temperature
Relative Humidity
1. Non-condensing.
Symbol
Vcc
T
S
RH
Min
-0.5
-40
0
Typ
Max
4.0
85
85
Unit
V
C
%
Ref.
1
III.
Electrical Characteristics
(T
OP
= -40 to 85
C,
V
CC
= 3.14 to 3.46 Volts)
Parameter
Symbol
Vcc
Icc
Min
3.14
Typ
3.30
200
Max
3.46
285
Unit
V
mA
mV
V
V
mV
ps
V
V
mVpp
Ref.
Supply Voltage
Supply Current
Transmitter
Input differential impedance
R
in
100
1
Differential data input swing
Vin,pp
180
700
Transmit Disable Voltage
V
D
2
Vcc
Transmit Enable Voltage
V
EN
Vee
Vee+ 0.8
Receiver
Differential data output swing
Vout,pp
300
850
2,6
Output rise time and fall time
T
r
, T
f
28
3
LOS Fault
V
LOS fault
2
Vcc
HOST
4
LOS Normal
V
LOS norm
Vee
Vee+0.8
4
Power Supply Noise Tolerance
VccT/VccR
Per SFF-8431 Rev 4.1
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 FTLX2071D327/FTLX2071D333 is a “limiting module”, i.e., it employs a limiting receiver. Host
board designers using an EDC PHY IC should follow the IC manufacturer’s recommended settings for
interoperating the host-board EDC PHY with a limiting receiver SFP+ module.
IV.
Optical Characteristics
(T
OP
= -40 to 85
C,
V
CC3
= 3.14 to 3.46 Volts)
Parameter
Symbol
P
OMA
P
AVE
SMSR
ER
TDP
P
OFF
Tx
j
RIN
Min
-5.2
-8.2
1260
1320
30
3.5
1271
1331
+0.5
1280
1340
Typ
Max
Unit
dBm
dBm
nm
nm
dB
dB
dB
dBm
dB/Hz
1
Ref.
Transmitter
Optical Modulation Amplitude
(OMA)
Average Launch Power
Optical Wavelength
(FTLX2071D327)
Optical Wavelength
(FTLX2071D333)
Side-Mode Suppression Ratio
Optical Extinction Ratio
Transmitter and Dispersion Penalty
Average Launch power of OFF
transmitter
Tx Jitter
Relative Intensity Noise
3.2
-30
Per 802.3ae requirements
-128
Finisar Corporation – October 2015
Rev. C1
Page 3
FTLX2071D3xx Product Specification
Receiver
Receiver Sensitivity (OMA)
@ 10.3Gb/s
Stressed Receiver Sensitivity (OMA)
@ 10.3Gb/s
Average Receive Power
Optical Wavelength
(FTLX2071D327)
Optical Wavelength
(FTLX2071D333)
Optical Crosstalk
External Isolation
Receiver Reflectance
LOS De-Assert
LOS Assert
LOS Hysteresis
R
SENS1
R
SENS2
P
AVE
R
R
-14.4
1320
1260
30
R
rx
LOS
D
LOS
A
-12
-17
-30
0.5
-12.6
-10.3
+0.5
1340
1280
-40
dBm
dBm
dBm
nm
dB
dB
dB
dBm
dBm
dB
2
3
4
Notes:
1. Average power figures are informative only, per IEEE 802.3ae.
2. Valid between stated wavelength range. Measured with worst case ER; BER<10
-12
; 2
31
– 1 PRBS.
3. Valid between stated wavelength range.
4. Average receive power (min) is informative and not the principal indicator of signal strength. A
received power below this value cannot be compliant; however, a value above this does not ensure
compliance.
V.
General Specifications
Parameter
Symbol
BR
BER
L
MAX
Min
9.95
Typ
Max
10.3
10
-12
Units
Gb/s
km
Ref.
1
2
1
Bit Rate
Bit Error Ratio
Max. Supported Link Length
Notes:
1. 10GBASE-LR, 10GBASE-LW, 1200-SM-LL-L 10GFC.
2. Tested with a 2
31
– 1 PRBS.
10
VI. Environmental Specifications
Finisar FTLX2071D327/FTLX2071D333 transceivers have an operating temperature
range from -40°C to +85°C case temperature.
Parameter
Case Operating Temperature
Storage Temperature
Symbol
T
op
T
sto
Min
-40
-40
Typ
Max
85
85
Units
°C
°C
Ref.
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 meet the Class 1 eye safety
requirements of EN (IEC) 60825 and the electrical safety requirements of
EN (IEC) 60950. Copies of certificates are available at Finisar Corporation upon request.
Finisar Corporation – October 2015
Rev. C1
Page 4
FTLX2071D3xx Product Specification
VIII. Digital Diagnostic Functions
Finisar FTLX2071D327/FTLX2071D333 SFP+ transceivers support the 2-wire serial
communication protocol as defined in the SFP MSA
1
. It is very closely related to the
E
2
PROM 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 such 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 E
2
PROM 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 E
2
PROM 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 activation. 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 documentation
1,5
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.
Finisar Corporation – October 2015
Rev. C1
Page 5
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