FINISAR FTLX8574D3BCL Datasheet

Product Specification

10Gb/s 850nm Multimode Datacom SFP+ Transceiver

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

0°C to 70°C

RoHS-6 Compliant

FTLX8571D3BCL

• Single 3.3Vpower supply

• Maximum link length of 300m on

2000 MHZ-km MMF

• Uncooled 850nm VCSEL laser

• Receiver limiting electrical

interface

• Duplex LC connector

• Built-in digital diagnostic functions

Finisar’s FTLX8571D3BCL 10Gb/s SFP+ transceivers are designed for use in 10-Gigabit Ethernet links over multimode fiber. They are compliant with SFF-84311, SFF-84322, IEEE 802.3ae 10GBASE-SR/SW diagnostics functions are available via a 2-wire serial interface, as specified in SFF-

84725. The FTLX8571D3BCL 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 transceiver is RoHS compliant and lead free per Directive 2002/95/EC6, and Finisar Application Note AN-20387.

PRODUCT SELECTION

3

and 10G Fibre Channel 1200-Mx-SN-I4. Digital

APPLICATIONS

• 10GBASE-SR/SW 10G Ethernet

• 1200-Mx-SN-I 10G Fibre Channel

FTLX8571D3BCL

*Contact Finisar for higher data-rate support.

FTLX8571D3BCL Product Specification – September 2009

A

I. Pin Descriptions

Pin Symbol Name/Description Ref.

1 V 2 T 3 T

EET

FAULT

Transmitter Disable. Laser output disabled on high or open. 3

DIS

4 SDA 2-wire Serial Interface Data Line 4 5 SCL 2-wire Serial Interface Clock Line 4 6 MOD_ABS Module Absent. Grounded within the module 4 7 RS0 No connection required

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

9 RS1 10 V 11 V 12 RD-

EER

13 RD+ Receiver Non-inverted DATA out. AC Coupled 14 V 15 V 16 V 17 V

EER

Receiver Power Supply

CCR

Transmitter Power Supply

CCT

EET

18 TD+ Transmitter Non-Inverted DATA in. AC Coupled. 19 TD20 V

EET

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

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.

3. Laser output disabled on T

4. Should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V.

MOD_ABS pulls line low to indicate module is plugged in.

5. LOS is open collector output. Should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage

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

Figure 1. Diagram of Host Board Connector Block Pin Numbers and Names.

Transmitter Ground (Common with Receiver Ground) 1

Transmitter Fault. 2

No connection required Receiver Ground (Common with Transmitter Ground) 1 Receiver Ground (Common with Transmitter Ground) 1 Receiver Inverted DATA out. AC Coupled

Receiver Ground (Common with Transmitter Ground) 1

Transmitter Ground (Common with Receiver Ground) 1

Transmitter Inverted DATA in. AC Coupled. Transmitter Ground (Common with Receiver Ground) 1

DIS

Towards

Bezel

>2.0V or open, enabled on T

VeeT

1

TX_Fault

2

3

TX_Disable

4

SD

5

SCL

6

MOD_ABS

RS0

7

8

RX_LOS

9

RS1

VeeR

10

VeeT

TD-

TD+

VeeT

VccT

VccR

VeeR

RD+

RD-

VeeR

<0.8V.

DIS

20

19

18

17

16

15

14

13

12

11

Towards

SIC

FTLX8571D3BCL Product Specification – September 2009

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 Storage Temperature T Case Operating Temperature T

S

A

Relative Humidity RH 0 85 % 1

Notes:

I. Non-condensing.

III. Electrical Characteristics (T

Parameter Symbol Min Typ Max Unit Ref.

Supply Voltage Vcc 3.14 3.46 V Supply Current Icc 250 mA

Transmitter

Input differential impedance R Differential data input swing Vin,pp Transmit Disable Voltage V Transmit Enable Voltage V

Receiver

Differential data output swing Vout,pp Data output rise time, fall time tr 28 ps 3 LOS Fault V LOS Normal V Power Supply Noise Tolerance VccT/VccR

Notes:

1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.

2. Into 100Ω differential termination.

3. 20 – 80 % . Measured with Module Compliance Test Board and OMA test pattern. Use of four 1’s

and four 0’s in sequence in the PRBS^9 is an acceptable alternative. SFF-8431 Rev 3.0

4. LOS is an open collector output. Should be pulled up with 4.7kΩ – 10kΩ on the host board.

Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.

5. Testing methodology per SFF-8431. Rev 3.0

6. The FTLX8571D3BCL 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.

= 0 to 70 °C, VCC = 3.14 to 3.46 Volts)

OP

LOS fault

LOS norm

-40 85 0 70

in

D

EN

100

180 700 mV

2 Vcc V

Vee Vee+ 0.8 V

300 850 mV 2,6

2 Vcc

Vee Vee+0.8 V 4

Per SFF-8431 Rev 3.0 mVpp 5

°C °C

Ω

V 4

HOST

1

FTLX8571D3BCL Product Specification – September 2009

IV. Optical Characteristics (T

Parameter Symbol Min Typ Max Unit Ref.

Transmitter

Optical Modulation Amplitude (OMA) Average Launch Power P Optical Wavelength

RMS Spectral Width Optical Extinction Ratio ER Transmitter and Dispersion Penalty TDP 3.9 dB Average Launch power of OFF

transmitter Tx Jitter Tx

Encircled Flux

Relative Intensity Noise RIN12OMA

Receiver

Receiver Sensitivity (OMA) @ 10.3Gb/s Stressed Receiver Sensitivity (OMA) @ 10.3Gb/s Maximum Input Power P Wavelength Range

Receiver Reflectance Rrx -12 dB LOS De-Assert LOS LOS Assert LOS LOS Hysteresis

Notes:

1. Per Tradeoff Table 52.8, IEEE 802.3ae 2005

2. Average Power figures are informative only, per IEEE802.3ae.

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

4. Measured with worst ER; BER<10

5. 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

Maximum Supported Distances

Fiber Type 850nm OFL

Bandwidth

160 MHz-km 26

62.5μm

OM1

200 MHz-km

= 0 to 70 °C, VCC = 3.14 to 3.46 Volts)

OP

P

OMA

-5 -1 dBm 2

AVE

λ

Δλ

rms

P

OFF

j

<4.5μm

<19μm

-1.5 dBm 1

840 850 860 nm 1

0.45 dB 1

3.0 5.5 dB

-30 dBm

Per IEEE 802.3ae requirements

30

86

-128 dB/Hz

R

SENS1

R

SENS2

+0.5 dBm

MAX

λ

C

D

A

-12

; 231 – 1 PRBS.

-11.1 dBm

-7.5 dBm

840 860 nm

-14 dBm

-30 -23 dBm

0.5 dB

% 3

-12

2

Lmax

33

m

4

5

FTLX8571D3BCL Product Specification – September 2009

400 MHz-km 66

OM2

50μm

Notes:

1. 10GBASE-SR/SW. Contact Finisar for higher data-rate support.

2. Tested with a 2

500 MHz-km

OM3

2000 MHz-km

31

– 1 PRBS

Lmax

82

300

m

VI. Environmental Specifications

Finisar 850nm SFP transceivers have a commercial operating temperature range from 0°C to +70°C case temperature.

Parameter Symbol Min Typ Max Units Ref.

Case Operating Temperature T Storage Temperature T

op

sto

0 70 °C

-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.

FTLX8571D3BCL Product Specification – September 2009

VIII. Digital Diagnostic Functions

Finisar FTLX8571D3BCL SFP+ transceivers support the 2-wire serial communication protocol as defined in the SFF-8472. 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 an 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.

SFF-8472 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 AN2030: “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 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 SFF-8472 documentation and Finisar Application Note AN-2030.

FTLX8571D3BCL Product Specification – September 2009

IX. Digital Diagnostic Specifications

FTLX8571D3BCL 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

DD

Temperature

-3 3 ºC temperature Internally measured transceiver

DD

-100 100 mV

Voltage

supply voltage Measured TX bias current DD Measured TX output power DD Measured RX received average

DD

-10 10

Bias

-2 2 dB

Tx-Power

-2 2 dB

Rx-Power

%

optical power

Dynamic Range for Rated Accuracy

Internally measured transceiver

DD

Temperature

0 70 ºC temperature Internally measured transceiver

DD

3.14 3.46 V

Voltage

supply voltage Measured TX bias current DD Measured TX output power DD Measured RX received average

DD

0 20 mA

Bias

-9 -2.5 dBm

Tx-Power

-20 0 dBm

Rx-Power

optical power

Max Reporting Range

Internally measured transceiver

DD

Temperature

-40 125 ºC temperature Internally measured transceiver

DD

2.8 4.0 V

Voltage

supply voltage Measured TX bias current DD Measured TX output power DD Measured RX received average

DD

0 20

Bias

-10 -3 dBm

Tx-Power

-22 0 dBm

Rx-Power

mA

optical power

Notes:

1. Accuracy of Measured Tx Bias Current is 10% of the actual Bias Current from the laser driver to the laser.

1

FTLX8571D3BCL Product Specification – September 2009

X. Mechanical Specifications

Finisar FTLX8571D3BCL SFP+ transceivers are compatible with the SFF-8432 specification for improved pluggable form factor, and shown here for reference purposes only. Bail color is beige.

Figure 3. FTLX8571D3BCL Mechanical Dimensions.

FTLX8571D3BCL Product Specification – September 2009

XI. PCB Layout and Bezel Recommendations

Figure 4.

FTLX8571D3BCL Product Specification – September 2009

Figure 5.

FTLX8571D3BCL Product Specification – September 2009

XII. Host - Transceiver Interface Block Diagram

Figure 6-Host-Module Interface

FTLX8571D3BCL Product Specification – September 2009

XIII. References

1. “Specifications for Enhanced 8.5 and 10 Gigabit Small Form Factor Pluggable

Module ‘SFP+ ‘”, SFF Document Number SFF-8431, Revision 3.0.

2. “Improved Pluggable Formfactor”, SFF Document Number SFF-8432, Revision 4.2,

April 18, 2007.

3. IEEE Std 802.3ae, Clause 52, PMD Type 10GBASE-SR. 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 10.3, December 1, 2007.

6. Directive 2002/95/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”. January 27, 2003.

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

Transceivers”, Finisar Corporation, January 21, 2005.

XIII. 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