FTLX2071D327 - FINISAR - Product.Network

 Finisar Corporat i o n - Oct o b e r 20 1 5 Rev. C1 Page 1

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-84311 and IEEE 802.3ae 10GBASE-

LR/LW3, and 10G Fibre Channel 1200-SM-LL-L4. Digital diagnostics functions are

available via a 2-wire serial interface, as specified in SFF-84725.

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/EU6. See Finisar

Application Note AN-2038 for more details 7.

PRODUCT SELECTION

Part Number Wavelength

FTLX2071D327 1271 nm

FTLX2071D333 1331 nm

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 2

I. Pin Descriptions

Pin Symbol Name/Description Ref.

1 VEET Transmitter Ground 1

2 TFAULT Transmitter Fault 2

3 TDIS Transmitt er Disabl e. Laser o u t put di sabl ed on high or open. 3

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 2

7 RS0 Rate Select 0. Not Used. 4

8 RX_LOS Loss of Signal indication. Logic 0 indicates normal operation. 5

9 RS1 Rate Select 1. Not Used. 4

10 VEER Receiver Ground 1

11 VEER Receiver Ground 1

12 RD- Receiver Inverted DATA out. AC Coupled.

13 RD+ Receiver Non-inverted DATA out. AC Coupled.

14 VEER Receiver Ground 1

15 VCCR Receiver Power Supply

16 VCCT Transmitter Power Supply

17 VEET Transmitter G round 1

18 TD+ Transmitter Non-Inverted DATA in. AC Coupled.

19 TD- Transmitter Inverted DATA in. AC Coupled.

20 VEET Transmitter G round 1

Notes:

1. Circuit ground is internally isolated from chassis ground.

2. TFAULT is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on

the host board if intende d fo r use. Pull u p vo l t age sho ul d be betwee n 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.

3. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.

4. Internally pulled down per SFF-8431 Rev 4.1.

5. LOS is open collector output. Should be pulled up with 4.7k – 10k on host boa rd to a vol t a ge

between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

Figure 1. Diagram of Host Boar d Connec tor Block Pin Numbers and Names.

VeeT

VeeR

TD-

TD+

RD+

RD-

VccT

VccR

VeeT

VeeR

TX_Fault

SDA

SCL

MOD_ABS

RS0

RX_LOS

Towards

SIC

Towards

Bezel

TX_Disable

RS1

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 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 = -40 to 85 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

, Tf 28 ps 3

LOS Fault VLOS faul

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 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 (TOP = -40 to 85 C, VCC3 = 3.14 to 3.46 Volts)

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 (FTLX2071D327) 



1260 1271 1280 nm

Optical Wavelength (FTLX2071D333)  1320 1331 1340 nm

Side-Mode Suppression Ratio SMSR 30 dB

Optical Extinction Ratio ER 3.5 dB

Transmitte r and Dispersion Penalty 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

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 4

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 4

Optical Wavelength (FTLX2071D327)





1320 1340 nm

Optical Wavelength (FTLX2071D333)



R 1260 1280

Optical Crosstalk -40 dB

External Isolation 30 dB

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 stated wavelength range. Measured with worst case ER; BER<10-12; 231 – 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 Min Typ Max Units Ref.

Bit Rate BR 9.95 10.3 Gb/s 1

Bit Error Ratio BER 10-12

Max. Supported Link Length LMAX 10 km

Notes:

1. 10GBASE-LR, 10GBASE-LW, 1200-SM-LL-L 10GFC.

2. Tested with a 231 – 1 PRBS.

VI. Environmental Specifications

Finisar FTLX2071D327/FTLX2071D333 transceivers have an operating temperature

range from -40°C to +85°C case temperature.

Parameter Symbol Min Typ Max Units Ref.

Case Operating Temperature Top -40 85 °C

Sto rage Temperature Tsto -40 85 °C

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.

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 5

VIII. Digital Diagnostic Functions

Finisar FTLX2071D327/FTLX2071D333 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 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 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, th e 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 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 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.

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 6

IX. Digital Diagnostic Specifications

FTLX2071D327/FTLX2071D333 transceivers can be used in host systems that require

either internally or externally calibrated digital diagnostics.

Parameter Symbol Min Typ Max Units Ref.

Accuracy 

Internally measured transceiver

temperature



DDTemperature 3 ºC

Internally measured transceiver

supply voltage



DDVoltage 3

Measured TX bias current



DDBias 10

% 1

Measured TX output power



DDTx-Powe

2 dB

Measured RX received average

optical power



DDRx-Power 2 dB

Dynamic Range for Rated Accuracy

Internally measured transceiver

temperature DDTemperature -40 85 ºC

Internally measured transceiver

supply voltage DDVoltage 3.1 3.5 V

Measured TX bias current DDBias 0 65 mA

Measured TX out put p owe r DDTx-Power -8.2 +0.5 dBm

Measured RX received average

optical power DDRx-Power -14.4 +0.5 dBm

Notes:

1. Accuracy of measured Tx bias current is 10% of the actual bias current from the laser driver to the laser.

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 7

X. Mechanical Specifications

Finisar FTLX2071D327/FTLX2071D333 SFP+ transceivers are compatible with the

SFF-8432 specification for improved pluggable form factor. Bail color for

FTLX2071D327 is gray, bail color for FTLX2071D333 is green.

Figure 2. FTLX2071D327/FTLX2071D333 Mechanical Dimensions

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 8

XI. PCB Layout and Bezel Recommendations

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 9

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 10

XII. Host - Transceiver Interface Block Diagram

Figure 6-Host-Module Interface

FTLX2071D3xx Product Specification

 Finisar Corporation – October 2015 Rev. C1 Page 11

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 10.1, March 1, 2007.

6. Directive 2011/65/EC of the European Council Parliament and of the Council, “on

the restriction of the use of certain hazardous substances in electrical and electronic

equipment”

7. “Application Note AN-2038: Finisar Implementation of RoHS Compliant

Transceivers”

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