FTLX8512D3BTL - FINISAR - Datasheet.Directory

 Finisar Corporation – August 2015 Rev. E1 Page 1

Product Specification

Industrial Temperature Range

10Gb/s 850nm Multimode Datacom XFP Optical Transceiver

FTLX8512D3BTL

PRODUCT FEATURES

 Hot-pluggable XFP footprint

 Supports 8.5Gb/s and 9.95 through

10.5 Gb/s bit rates*

 Power dissipation <1.5W

 RoHS-6 compliant (lead-free)

 Temperature range -40°C to +85°C

 Single power supply: 3.3V

 Maximum link length of 300m

 850nm heated VCSEL laser.

 Duplex LC connector

 No Reference Clock required

 Built-in digital diagnostic functions

 Standard bail release mechanism

APPLICATIONS

 10GBASE-SR/SW 10G Ethernet

 1200-Mx-SN-I 10G Fibre Channel

 800-Mx-SN-I 8G Fibre Channel

 G.709 OTN/FEC (OTU1e and OTU2e)

Finisar’s FTLX8512D3BTL Small Form Factor 10Gb/s (XFP) transceivers are compliant

with the current XFP Multi-Source Agreement (MSA) Specification1 now available with

Industrial Temperature Range of Operation (-40°C to +85°C). They comply with 10-

Gigabit Ethernet 10GBASE-SR/SW per IEEE 802.3ae, 10G Fibre Channel 1200-Mx-SN-

I, 8G Fibre Channel 800-Mx-SN-I, and OTN/FEC protocols OTU1e and OTU2e upon

request. Digital diagnostics functions are available via a 2-wire serial interface, as

specified in the XFP MSA. The optical transceiver is compliant per the RoHS Directive

2011/65/EU. See Finisar Application Note AN-2038 for more details3,4.

PRODUCT SELECTION

FTLX8512D3BTL

*Contact Finisar for higher data-rate support

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 2

I. Pin Descriptions

Pin Logic Symbol Name/Description Ref.

1 GND Module Ground 1

2 VEE5 Optional –5.2 Power Supply – Not required

3 LVTTL-I Mod-Desel Module De-select; When held low allows the module to

respond to 2-wire serial interface commands

4 LVTTL-O

Interrupt Interrupt (bar); Indicates presence of an important condition

which can be read over the serial 2-wire interface

5 LVTTL-I TX_DIS Transmitter Disable; Transmitter laser source turned off

6 VCC5 +5 Power Supply – Not required

7 GND Module Ground 1

8 VCC3 +3.3V Power Supply

9 VCC3 +3.3V Power Supply

10 LVTTL-I SCL Serial 2-wire interface clock 2

11 LVTTL-

I/O

SDA Serial 2-wire interface data line 2

12 LVTTL-O Mod_Abs Module Absent; Indicates module is not present. Grounded

in the module.

13 LVTTL-O Mod_NR Module Not Ready; Finisar defines it as a logical OR

between RX_LOS and Loss of Lock in TX/RX.

14 LVTTL-O RX_LOS Receiver Loss of Signal indicator 2

15 GND Module Ground 1

16 GND Module Ground 1

17 CML-O RD- Receiver inverted data output

18 CML-O RD+ Receiver non-inverted data output

19 GND Module Ground 1

20 VCC2 +1.8V Power Supply – Not required

21 LVTTL-I P_Down/RST Power Down; When high, places the module in the low

power stand-by mode and on the falling edge of P_Down

initiates a module reset

Reset; The falling edge initiates a complete reset of the

module including the 2-wire serial interface, equivalent to a

power cycle.

22 VCC2 +1.8V Power Supply – Not required

23 GND Module Ground 1

24 PECL-I RefCLK+ Reference Clock non-inverted input, AC coupled on the

host board – Not required

25 PECL-I RefCLK- Reference Clock inverted input, AC coupled on the host

board – Not required

26 GND Module Ground 1

27 GND Module Ground 1

28 CML-I TD- Transmitter inverted data input

29 CML-I TD+ Transmitter non-inverted data input

30 GND Module Ground 1

Notes:

1. Module circuit ground is isolated from module chassis ground within the module.

2. Open collector; should be pulled up with 4.7k – 10k on host board to a voltage between 3.15V and

3.6V.

3. A Reference Clock input is not required by the FTLX8512D3BTL. If present, it will be ignored.

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 3

Diagram of Host Board Connector Block Pin Numbers and Name

II. Absolute Maximum Ratings

Parameter Symbol Min Typ Max Unit Ref.

Maximum Supply Voltage Vcc3 -0.5 4.0 V

Case Operating Temperature TOP -40 +85

C

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 4

III. Electrical Characteristics (TOP = -40 to +85C, VCC3 = 3.13 to 3.45 Volts)

Parameter Symbol Min Typ Max Unit Ref.

Supply Voltage Vcc3 3.13 3.45 V

Supply Current Icc3 360 435 mA 1

Module total power consumption P 1.2 1.5 W 1

Transmitter 

Input differential impedance Rin 100  2

Differential data input swing Vin,pp 120 1000 mV

Transmit Disable Voltage VD2.0 Vcc V 3

Transmit Enable Voltage VEN GND GND+ 0.8 V

Transmit Disable Assert Time 10 us

Receiver 

Differential data output swing Vout,pp 340 850 mV 4

Data output rise time t

40 ps 5

Data output fall time tf 40 ps 5

LOS Fault VLOS faul

Vcc – 0.5 VccHOST V 6

LOS Normal VLOS nor

GND GND+0.5 V 6

Power Supply Rejection PSR See Note 7 below 7

Notes:

1. Maximum total power consumption value is specified across the full temperature and voltage range.

Typical current at -40C is ~400mA.

2. After internal AC coupling.

3. Or open circuit.

4. Into 100 ohms differential termination.

5. 20 – 80 %.

6. Loss Of Signal is open collector to be pulled up with a 4.7k – 10k resistor to 3.15 – 3.6V. Logic 0

indicates normal operation; logic 1 indicates no signal detected.

7. Per Section 2.7.1. in the XFP MSA Specification1.

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 5

IV. Optical Characteristics (TOP = -40 to +85C, VCC3 = 3.13 to 3.45 Volts)

Parameter Symbol Min Typ Max Unit Ref.

Transmitter 

Optical Modulation Amplitude

(OMA)

POMA -2.8 -1.5 dBm

Average Optical Power PAVE -5.0 -1.0 1

Optical Wavelength 



840 850 860 nm

RMS Spectral Width



rms 0.4 0.45 dB

Optical Extinction Ratio ER 3.0 5.5 dB

Transmitter and Dispersion Penalty TDP 3.9 dB

Average Launch power of OFF

transmitter

POFF -30 dBm

Tx Jitter Txj Per 802.3ae requirements

Encircled Flux <4.5



m 30

% 2

<19



m 86

Relative Intensity Noise RIN12OMA -128 dB/Hz

Receiver 

Receiver Sensitivity (OMA)

@ 10.5Gb/s

RSENS1 -11.1 dBm

Stressed Receiver Sensitivity

(OMA) @ 10.3Gb/s

RSENS2 -7.5 dBm

Maximum Input Power PMAX +0.5 dBm

Wavelength Range





840 860 nm

Receiver Reflectance Rrx -12 dB

LOS De-Assert LOSD -14 dBm

LOS Assert LOSA-30 dBm

LOS Hysteresis 0.5 dB

Notes:

1. Average power figures are informative only, per IEEE 802.3ae.

2. Measured into Type A1a (50/125 μm multimode) fiber per ANSI/TIA/EIA-455-203-2.

3. Measured with worst ER; BER<10-12; 231 – 1 PRBS.

4. Per IEEE 802.3ae.

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 6

V. General Specifications

Parameter Symbol Min Typ Max Units Ref.

Bit Rate BR 8.5 10.5 Gb/s 1

Bit Error Ratio BER See Note 2 2

Maximum Supported Distances

Fiber Type 850nm OFL

Bandwidth

62.5m

160MHz-km

Lmax

OM1

200MHz-km 33

50m

400MHz-km

Lmax

OM2

500MHz-km 82

OM3

2000MHz-km 300

Notes:

1. 10GBASE-SR/SW, 1200-Mx-SN-I, 800-Mx-SN-I. Contact Finisar for higher data-rate support.

2. 10GBASE-SR/SW, 1200-Mx-SN-I tested with 231 – 1 PRBS @ 10-12 BER.

VI. Environmental Specifications

This Finisar XFP transceiver model has 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 1

Storage Temperature Tsto -40 85 °C

Notes:

1. Warm-up time at -40°C case temperature is 10 seconds.

VII. Regulatory Compliance

Finisar XFP transceivers are Class 1 Laser Products. They are certified per the following

standards:

Feature Agency Standard Certificate

Number

Laser Eye

Safety FDA/CDRH CDRH 21 CFR 1040 and Laser Notice 50 9210176-77

Laser Eye

Safety TÜV EN60825 R7201686

Electrical

Safety TÜV EN 60950 R7201686

Electrical

Safety

UL/CSA

CLASS 3862.07

CLASS 3862.87 2283290

Copies of the referenced certificates will be available at Finisar Corporation upon request.

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 7

VIII. Digital Diagnostic Functions

As defined by the XFP MSA1, Finisar XFP transceivers provide digital diagnostic

functions via a 2-wire serial interface, which allows real-time access to the following

operating parameters:

 Transceiver temperature

 Laser bias current

 Transmitted optical power

 Received optical power

 Transceiver supply voltage

It also provides a sophisticated system of alarm and warning flags, which may be used to

alert end-users when particular operating parameters are outside of a factory-set normal

range.

The operating and diagnostics information is monitored and reported by a Digital

Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed

through the 2-wire serial interface. When the serial protocol is activated, the serial clock

signal (SCL pin) is generated by the host. The positive edge clocks data into the XFP

transceiver into those segments of its memory map that are not write-protected. The

negative edge clocks data from the XFP transceiver. The serial data signal (SDA pin) 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. The 2-wire

serial interface provides sequential or random access to the 8 bit parameters, addressed

from 000h to the maximum address of the memory.

For more detailed information including memory map definitions, please see Finisar

Application Note AN-2035 “Digital Diagnostic Monitoring Interface for XFP Optical

Transceivers”, or the XFP MSA Specification1.

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 8

IX. Mechanical Specifications

Finisar’s XFP transceivers are compliant with the dimensions defined by the XFP Multi-

Sourcing Agreement (MSA). Bail color is beige.

XFP Transceiver (dimensions are in mm)

UNL

TCHED

8.50

13.30

16.00

20.85 39.00 R1.00

LATCHED

18.35

77.95

22.15

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 9

X. PCB Layout and Bezel Recommendations

XFP Host Board Mechanical Layout (dimensions are in mm)

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 10

XFP Detail Host Board M echa n ical Layout (dimensions are in mm)

XFP Recommended Bezel Design (dimensions are in mm)

FTLX8512D3BTL Product Specification

 Finisar Corporation – August 2015 Rev. E1 Page 11

XI. References

1. 10 Gigabit Small Form Factor Pluggable Module (XFP) Multi-Source Agreement

(MSA), INF-8077i, Rev 4.5 - August 2005. Documentation is currently available

at http://www.xfpmsa.org/

2. Application Note AN-2035: “Digital Diagnostic Monitoring Interface for XFP

Optical Transceivers” – Finisar Corporation, December 2003

3. Directive 2011/65/EU of the European Council Parliament and of the Council,

“on the restriction of the use of certain hazardous substances in electrical and

electronic equipment”

4. “Application Note AN-2038: Finisar Implementation Of RoHS Compliant

Transceivers”

XII. 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