FTLF1424P2BTR - Finisar Corporation

F i n i s a r

Product Specification

4 Gigabit RoHS Compliant Long-Wavelength SFP Transceiver

FTLF1424P2xTR and FTLF1424P2xTD

PRODUCT FEATURES

• Up to 4.25Gb/s bi-directional

data links

• Hot-pluggable SFP footprint

• Built-in digital diagnostic functions

• 1310nm DFB laser transmitter

• Duplex LC connector

• RoHS compliant and Lead Free

• Up to 10 km on 9/125μm SMF

• Metal enclosure, for lower EMI

• Single 3.3V power supply

• Industrial operating temperature

range: -40°C to 85°C

APPLICATIONS

• Tri Rate 1.06 / 2.125 / 4.25 Gb/s

Fibre Channel

• 1.25Gb/s Gigabit Ethernet (Rate

selectable version)

Finisar’s FTLF1424P2xTR and FTLF1424P2xTD Small Form Factor Pluggable (SFP)

transceivers are compatible with the Sm all Form Factor Pluggable Multi-Sourcing

Agreement (MSA)1. They are compatible with Fibre Channel per FC-PI-2 Rev. 10.02.

Rate selectable versions are also simultaneously compatible with Gigabit Ethernet as

specified in IEEE Std 802.33. The product is RoHS compliant and lead-free per Directive

2002/95/EC4 and Finisar Application Note AN-2038.

PRODUCT SELECTION

FTLF1424P2xTy

x W Wide Extraction Bail

B Narrow Extraction Bail

y R Non Rate Selectable - 1x, 2x, 4x Fibre Channel

D Rate Selectable - 1x, 2x, 4x Fibre Channel and Gigabit Ethernet

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

I. Pin Descriptions

Pin Symbol Name/Description Ref.

1 VEET Transmitter Ground (Common with Receiver Ground) 1

2 TFAULT Transmitter Fault. Not supported.

3 TDIS Transmit te r Disable. La ser o u t put di sabl e d o n hi g h or ope n. 2

4 MOD_DEF(2 ) Module Defini t i on 2. Dat a li n e for Serial ID. 3

5 MOD_DEF(1) Module Definition 1. Clock line for Serial ID. 3

6 MOD_DEF(0 ) Module Definition 0. G rounded withi n t he module. 3

7 Rate Select Open or Low =

High =

1.063 Gb/s or 2.125 Gb/s Fi b re Cha n nel, 1.25 Gb/s

Gigabit Ethernet (Low Bandwidth)

2.125 or 4.25 Gb/s Fibre Cha nnel (Hi g h Bandwidt h)

4

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

9 VEER Receiver Ground (Common with Transmitter Ground) 1

10 VEER Receiver Ground (Common with Transmitter Ground) 1

11 VEER Receiver Ground (Common with Transmitter Ground) 1

12 RD- Receiver Inverted DATA out. AC Coupled

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

14 VEER Receiver Ground (Common with Transmitter Ground) 1

15 VCCR Receiver Power Supply

16 VCCT Transmitter Power Supply

17 VEET Transmitter Ground (Common with Receiver Ground) 1

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

19 TD- Transmitter Inverted DATA in. AC Coupled.

20 VEET Transmitter Ground (Common with Receiver Ground) 1

Notes:

1. Circuit ground is internally isolated from chassis ground.

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

3. Should be pulled up with 4.7k - 10 kohms on host board to a voltage between 2.0V and 3.6V.

MOD_DEF(0) pulls line low to indicate module is plugged in.

4. For Rate Selectable version only: In accordance with SFF Committee SFF-8079 Draft, Rev.1.6,

Table 3. Note that rate select can also be set through 2-wire bus in accordance with SFF-84726 at Bit

3, Byte 110, Address A2h (note: writing ‘1’ selects full bandwidth operation). Rate select is the logic

OR of the input state of Rate Select Pin and 2-wire bus. Non Rate Selectab le version can operate at 1x,

2x, 4x Fibre Channel independent of rate select pin setting.

5. LOS is open collector output. Should be pulled up with 4.7k – 10 koh ms on ho st board to a voltage

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

VeeT

VeeR

TD-

TD+

RD+

RD-

VccT

VccR

VeeT

VeeR

TXFault

MOD-DEF(2)

MOD-DEF(1)

MOD-DEF(0)

Rate Select

LOS

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

Towards

ASIC

Towards

Bezel

TX Disable

VeeR

Pinout of Connect or Block on Host Board

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

II. Absolute Maximum Ratings

Parameter Symbol Min Typ Max Unit Ref.

Maximum Supply Voltage Vcc -0.5 4.5 V

Storage Temperature TS-40 85

°C

Case Operating Temperature TOP -40 85

°C

Relative Humidity RH 0 85 % 1

III. Electrical Characteristics (TOP = -40 to 85 °C, VCC = 3.00 to 3.60 Volts)

Parameter Symbol Min Typ Max Unit Ref.

Supply Volt ag e Vcc 3.00 3.60 V

Supply Current Icc 200 300 mA

Transmitter

Input differential impedance Rin 100 Ω 2

Single ended data in put swing Vin,pp 250 1200 mV

Transmit Disable Voltage VDVcc – 1.3 Vcc V 3

Transmit Enable Voltage VEN Vee Vee+ 0.8 V

Transmit Disable Assert Time 10 us

Receiver

Single ended data output swing Vout,pp 250 800 mV 4

Data output rise/fall time < 4.25 Gb/s tr, tf 175 ps 5

Data output rise/fall time = 4.25 Gb/s tr, tf 120 ps 5

LOS Fault VLOS fault Vcc – 0.5 VccHOST V 6

LOS Normal VLOS norm Vee Vee+0.5 V 6

Power Supply Rejection PSR 100 mVpp 7

Deterministic Jitter Contribution

< 4.25 Gb/s RX

Δ

DJ 51.7 ps 8

Total Jitter Contribution < 4.25 Gb/s RX

Δ

TJ 122.4 ps

Deterministic Jitter Contribution

= 4.25 Gb/s RX

Δ

DJ 25.9 ps 8

Total Jitter Contribution = 4.25 Gb/s RX

Δ

TJ 61.2 ps

Notes:

1. Non-condensing.

2. AC coupled.

3. Or open circuit.

4. Into 100 ohm differential termination.

5. 20 – 80 %

6. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

7. All transceiver specifications are compliant with a power supply sinusoidal modulation of 20 Hz to 1.5

MHz up to specified value applied through the power supply filtering network shown on page 23 of the

Small Form-factor Pluggable (SFP) Transceiver MultiSource Agreement (MSA)1, September 14, 2000.

The Power Supply Re ject i on appl i es for a supply volta g e range of 3.15 to 3. 6 V.

8. Measured with DJ-free data input signal. In actual app lication, output DJ will be the sum of input DJ

and DJ.

Δ

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

IV. Optical Characteristics (TOP = -40 to 85 °C, VCC = 3.00 to 3.60 Volts)

Parameter Symbol Min Typ Max Unit Ref.

Transmitter

Output Opt. Power, Non-Rate Selectable

Version PO,NR -8.4 -1 dBm 1

Output Opt. Power, Rate Selectable Version PO,RH -8.4 -1 dBm 2

Output Opt. Power, Rate Selectable Version PO,RL -9.5 -3 dBm 3

Optical Wavelength λ 1285 1345 nm 4

Spectral Width σ 1 nm 4

Optical Modulation Amplitude OMA 290 μW 4,5

Optical Modulation Amplitude ≤ 2.125 Gb/s OMA 174 μW 4,5

Optical Rise/Fall Time = 4.25 Gb/s tr/ tf 90 ps 6

Optical Rise/Fall Time ≤ 2.125 Gb/s tr/ tf 160 ps 7

RIN -118 dB/Hz

Deterministic Jitter Contribution = 4.25 Gb/s TX

Δ

DJ 28.2 ps 8

Total Jitter Contribution = 4.25 Gb/s TX

Δ

TJ 59.8 ps

Deterministic Jitter Contribution ≤ 2.125 Gb/s TX

Δ

DJ 56.5 ps 8

Total Jitter Contribution ≤ 2.125 Gb/s TX

Δ

TJ 119 ps

Optical Extinction Ratio = 1.25 Gb/s ER 9 dB 9

Receiver

Receiver Sensitivity = 4.25 Gb/s RSENSr 0.029

-18 mW

dBm 10

11

Receiver Sensitivity = 2.125 Gb/s RSENS2 0.015

-21 mW

dBm 10

11

Receiver Sensitivity = 1.06 Gb/s RSENS1 0.015

-22 mW

dBm 10

11

Receiver Sensitivity = 1.25 Gb/s RSENS1 -22 dBm 12,13

Stressed RX sens. = 1.25 Gb/s -14.5 dBm

Average Received Power RxMAX 0 dBm

Receiver Elec. 3 dB cutoff freq. 1500 MHz 13

Receiver Elec. 3 dB cutoff freq. 2500 MHz 14

Optical Center Wavelength λC1260 1600 nm

Return Loss 12 dB

LOS De-Assert LOSD -19 dBm

LOS Assert LOSA-30 dBm

LOS Hysteresis 0.5 dB

Notes:

1. Class 1 Laser Safety per FDA/CDRH and EN (IEC) 60825 regulations.

2. High Bandwidth Mode. Class 1 Laser Safety per FDA/CDRH and EN (IEC) 608 25 regulations.

3. Low Bandwidth Mode. Class 1 Laser Safety per FDA/CDRH an d EN (IEC) 60825 regulations.

4. Also specified to meet curves in FC-PI- 2 Rev 10.0 Figures 18, 19, and 20, which allow trade-off

between wavelength, spectral width and OMA.

5. Equivalent extinction ratio specification for Fibre Channel. Allows smaller ER at higher average

power.

6. Unfiltered, 20-80%. Complies with FC 4x eye mask when filtered.

7. Unfiltered, 20-80%. Complies with IEEE 802.3 (Gig. E), FC 1x and 2x eye masks when filtered.

8. Measured with DJ-free data input signal. In actual app lication, output DJ will be the sum of input DJ

and DJ.

Δ

9. Applicable for Rate Selectable version only in low bandwidth mode.

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

10. Measured with conformance signals defined in FC-PI-2 Rev. 10.0 specifications. Value in OMA.

Measured with PRBS 27-1 at 10-12 BER

11. Measured with conformance signals defined in FC-PI-2 Rev. 10.0 specifications. Represents

sensitivity based on OMA spec, as corrected to incoming Extinction Ratio of 13 dB (for example, at

5.75dB incoming extinction ratio, an OMA of 0.029 mW corresponds to -16 d Bm sensitivity).

Measured with PRBS 27-1 at 10-12 BER .

12. Rate Selectable version in low bandwidth mode with minimum 9dB extinction ratio.

13. Rate Selectable version in low bandwidth mode.

14. Rate Selectable version in high bandwidth mode.

V. General Specifications

Parameter Symbol Min Typ Max Units Ref.

Data Rate BR 1062 4250 Mb/sec 1

Bit Error Rate BER 10-12 2

Max. Supported Link Length on

9/125 μm SMF @ 4X Fibre Channel LMAX1 10

km

3

Max. Supported Link Length on

9/125μm SMF @ 1X and 2X Fibre

Channel

LMAX2 20 km 3,4

Max. Supported Link Length on

9/125μm SMF @ Gigabit Ethernet LMAX3 20 km 3,4

Notes:

1. Gigabit Ethernet and 1x/2x/4x Fibre Channel compliant.

2. Tested with a PRBS 27-1 test pattern.

3. Distances are based on FC-PI-2 Rev. 10.0 and IEEE 802.3 standa rds .

4. Distances are indicative only. Please refer to the Optical Specifications in Section IV to calculate a

more accurate link budget based on specific conditions in your application.

VI. Environmental Specifications

Finisar 1310nm Industrial Temperature SFP 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

Storage 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.

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

VIII. Digital Diagnostic Functions

Finisar FTLF1424P2xTR and FTLF1424P2xTD 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 unique 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 or Finisar Application

Note AN-2030.

FTLF1424P2xTR and FTLF1424P2xTD transceivers can be used in host systems that

require either internally or externally calibrated digital diagnostics.

Please note that evaluation board FDB-1018 is available with Finisar ModDEMO

software that allows simple to use communication over the 2-wire serial interface.

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

IX. Mechanical Specifications

Finisar’s Small Form Factor Pluggable (SFP) transceivers are compatible with the

dimensions defined by the SFP Multi-Sourcing Agreement (MSA) 3.

FTLF1424P2BTy

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

FTLF1424P2WTy

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

X. PCB Layout and Bezel Recommendations

FTLF1424P2xTR and FTLF1424P2xTD SFP Product Specification – April 2007 F i n i s a r

XI. References

1. Small Form-factor Pluggable (SFP) Transceiver Multi-source Agreement (MSA),

September 14, 2000.

2. “Fibre Channel Draft Physical Interface Specification (FC-PI-2 Rev. 10.0)”.

American National Standard for Information Systems.

3. IEEE Std 802.3, 2002 Edition, Clause 38, PMD Type 1000BASE-LX.

IEEE Standards Department, 2002.

4. 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.

5. “Digital Diagnostics Monitoring Interface for Optical Transceivers”. SFF

Document Number SFF-8472, Revision 9.3.

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

www.finisar.com