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Preliminary Product Specification
Multi-rate CWDM Pluggable SFP Transceiver FWLF1621P2Txx
PRODUCT FEATURES * * * * * * * * * * Up to 2.67 Gb/s bi-directional data links Hot-pluggable SFP footprint Built-in digital diagnostic functions Cooled DFB laser transmitter in 8 possible CWDM wavelengths Duplex LC connector Very low jitter Metal enclosure, for lower EMI Single 3.3V power supply Low power dissipation Operating temperature range: -40C to 85C * APPLICATIONS * Metro Access Rings and Point-toPoint networking for SONET, Gigabit Ethernet and Fibre Channel Outside plant and industrial communication networks
Finisar's FWLF1621P2Txx CWDM Small Form Factor Pluggable (SFP) transceivers are designed for operation in Metro Access Rings and Point-to-Point networks using SONET1, Gigabit Ethernet2 and Fibre Channel3 networking equipment in environments where temperatures are not controlled. They are available in eight different CWDM wavelengths and comply with ITU CWDM standard4. Digital diagnostics functions can be accessed via an I2C serial bus. In addition, the transceivers comply with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA)5 are RoHS and lead free compliant per Directive 2002/95/EC6 and Finisar Application Note AN-20387.
PRODUCT SELECTION Clasp Color Wavelength Xx Code 1471 nm 47 Gray 1491 nm 49 Violet 1511 nm 51 Blue 1531 nm 53 Green
Wavelength 1551 nm 1571 nm 1591 nm 1611 nm
xx 55 57 59 61
Clasp Color Code Yellow Orange Red Brown
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(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
FWLF1621P2Txx SFP Product Specification - November 2007
Finisar
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 VEET TFAULT TDIS MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) Rate Select LOS VEER VEER VEER RDRD+ VEER VCCR VCCT VEET TD+ TDVEET Name/Description Transmitter Ground (Common with Receiver Ground) Transmitter Fault. Not supported. Transmitter Disable. Laser output disabled on high or open. Module Definition 2. Data line for Serial ID. Module Definition 1. Clock line for Serial ID. Module Definition 0. Grounded within the module. No connection required Loss of Signal indication. Logic 0 indicates normal operation. Receiver Ground (Common with Transmitter Ground) Receiver Ground (Common with Transmitter Ground) Receiver Ground (Common with Transmitter Ground) Receiver Inverted DATA out. AC Coupled Receiver Non-inverted DATA out. AC Coupled Receiver Ground (Common with Transmitter Ground) Receiver Power Supply Transmitter Power Supply Transmitter Ground (Common with Receiver Ground) Transmitter Non-Inverted DATA in. 100 ohm termination between TD+ and TD-, AC Coupled thereafter. Transmitter Inverted DATA in. See TD+ Transmitter Ground (Common with Receiver Ground) Ref. 1 2 3 3 3 4 5 1 1 1
1
1
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 - 10kohms on host board to a voltage between 2.0V and 5.5V. MOD_DEF(0) pulls line low to indicate module is plugged in. 4. Finisar 2x receiver achieves simultaneous 1x and 2x operation without active control. 5. LOS is open collector output. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 5.5V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
VeeT 1 2 3 4 VeeT TDTXFault TD+ TX Disable VeeT MOD-DEF(2) VccT
20 19 18 17 16 15 14 13 12 11
Towards Bezel
5 6 7 8 9 10
MOD-DEF(1) VccR MOD-DEF(0) VeeR Rate Select RD+ LOS RDVeeR VeeR VeeR
Towards ASIC
Diagram of Host Board Connector Block Pin Numbers and Names
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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FWLF1621P2Txx SFP Product Specification - November 2007
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II.
Absolute Maximum Ratings
Symbol Vcc TS TOP Min -0.5 -40 -40 Typ Max 4.7 85 85 Unit V C C Ref.
Parameter Maximum Supply Voltage Storage Temperature Case Operating Temperature
III.
Electrical Characteristics (TOP = -40 to 85 C, VCC = 3.11 to 3.5 Volts)
Symbol Vcc Icc Rin Vin,pp VD VEN Min 3.1 Typ 200 100 250 Vcc - 1.3 Vee 1200 Vcc Vee+ 0.8 10 800 175 175 VccHOST Vee+0.5 Max 3.5 380 Unit V mA mV V V us mV ps ps V V mVpp Ref.
Parameter Supply Voltage Supply Current Transmitter Input differential impedance Single ended data input swing Transmit Disable Voltage Transmit Enable Voltage Transmit Disable Assert Time Receiver Single ended data output swing Data output rise time Data output fall time LOS Fault LOS Normal Power Supply Rejection
1
2
Vout,pp tr tf VLOS fault VLOS norm PSR
250 100 100 Vcc - 0.5 Vee 100
3 4 4 5 5 6
Notes: 1. Connected directly to TX data input pins. AC coupled thereafter. 2. Or open circuit. 3. Into 100 ohms differential termination. 4. 20% to 80 % 5. LOS (Loss-of-signal) is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected. 6. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network.
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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FWLF1621P2Txx SFP Product Specification - November 2007
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IV.
Low Speed Signals
Symbol Min -42 0.5 t_loss_on t_loss_off t_off Typ -36 -34 2 Max Units Notes/Conditions dBm dBm dB sec From detection of loss of signal to assertion of RX_LOS sec From detection of presence of signal to negation of RX_LOS sec Rising edge of TX_DISABLE to fall of output signal below 10% of nominal sec Falling edge of TX_DISABLE to rise of output signal above 90% of nominal. Time indicated is under steady-state temperature conditions. sec TX_DISABLE HIGH before TX_DISABLE set LOW sec From fault to assertion of TX_FAULT sec From power on to negation of TX_FAULT using TX_DISABLE
Parameter RX_LOS Assert Level RX_LOS Deassert Level RX_LOS Hysteresis RX_LOS Assert Delay RX_LOS Negate Delay TX_DISABLE Assert Time
-30 100 100 10
TX_DISABLE Negate Time
t_on
1000
TX_DISABLE Reset Time TX_FAULT Assert Initialization Time
t_reset
10 100 300
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FWLF1621P2Txx SFP Product Specification - November 2007
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V.
Optical Characteristics (TOP = -40 to 85 C, VCC = 3.1 to 3.5 Volts)
Symbol POUT 20 ER SMSRmin tr/ tf RIN Min 0 (X-6.5) Typ Max +5 (X+6.5) 0.125 1 Unit dBm nm nm/C nm dB dB ps dB/Hz mUI dB dB dBm nm mUI dB Ref. 2 3 4 5 6 7 8
Parameter Transmitter Output Opt. Pwr (EOL) Optical Wavelength Wavelength Temperature Dependence Spectral Width Optical Extinction Ratio Sidemode Suppression Ratio Optical Rise/Fall Time RIN Transmitter Jitter Generation Dispersion Penalty at 80 km Optical Return Loss Receiver Optical Input Power Optical Input Wavelength Receiver Jitter Generation Optical Return Loss
8.2 30 180 -120 75 2.5 24
Pin C
-27 1450 27
-7 1620 75
9 7
Notes: 1. Parameters are specified over temperature and voltage, at end of life unless otherwise noted. 2. Class 1 Laser Safety per FDA/CDRH and IEC-825-1 regulations. 3. Over case temperature of -40 to 85 C. The Transmitter Center Wavelength "X" is as specified, including 1471, 1491, 1511, 1531, 1551, 1571, 1591, and 1611 nm. Please see the "Product Selection" section on page 1. 4. Full width, -20dB from peak. 5. Measured filtered, at 2.488 Gb/s. Min represents worst-case ER over temperature and at end of life. 6. Unfiltered, 20% to 80%. 7. Measured per GR-2532 section 5.6 for OC-48 B. 8. SMF-28 fiber used. 60kms represents 1200ps/nm at 1610nm. Measured at 2.488Gb/s with a PRBS 223-1 pattern at a BER<10-12. 9. Pin represents the range of input powers where BER<10-12. Pin is valid over all data rates specified in Section VI.
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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VI. General Specifications
Parameter Data Rate Symbol BR Min 0.155* Typ Max 2.67 Units Ref. Gb/sec *OC-3/12 compatible. Not compliant w/ all OC-3/12 specifications, such as min ER .(OC-48 compliance takes precedence) dB 2.488 Gb/s, BER < 10-12 w/ PRBS 223-1. Does not include dispersion penalty
Total Link Budget
--
27
VII.
Environmental Specifications
Symbol Top Tsto Min -40 -40 Typ Max 85 85 Units C C Ref.
Parameter Case Operating Temperature Storage Temperature
VIII. Regulatory Compliance Finisar CWDM SFP transceivers are Class 1 Laser Products. They are certified per the following standards: Feature Laser Eye Safety Agency FDA/CDRH Standard CDRH and IEC-825 Class 1 Laser Product. See Note 1 EN 60950 EN 60825-1 EN 60825-2 CLASS 3862.07 CLASS 3862.87
Laser Eye Safety
TUV
Electrical Safety
CSA
Note 1: Complies with FDA performance standards for laser products except for deviations pursuant to Laser Notice No. 50, dated July 26, 2001.
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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IX.
Digital Diagnostic Functions
All Finisar SFPs support the 2-wire serial communication protocol outlined in the SFP MSA5. These SFPs use an Atmel AT24C01A 128 byte E2PROM with an address of A0h (see table below for E2PROM contents). For details on interfacing with the E2PROM, see the Atmel data sheet titled "AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM."8 Finisar's CWDM SFPs also support extended diagnostic features as described in Finisar Applications Note AN-2030, "Digital Diagnostic Monitoring Interface for Optical Transceivers"9, and additional information is available in SFF standard titled: "Digital Diagnostic Monitoring Interface for Optical Transceivers10 (SFF-8472 rev9.3). A controller IC that monitors system parameters such as laser current, module temperature, transmitter power, and received power is accessible at address A2H. I2C clock speed, digital diagnostic accuracy and digital diagnostic range can be found in the table below. Values in the table represent the worst-case values over temperature, voltage, and life.
Parameter
I2C Clock Speed Accuracy Transceiver Temperature Transceiver Supply Voltage Tx Bias Current Tx Output Power Received Average Power Range Transceiver Temperature Transceiver Supply Voltage Tx Bias Curent Tx Output Power Received Average Power
Symbol
DDTemperatu
re
Min Typ
0 -3 -3 -10 -3 -3
Max
100,000 +3 +3 +10 +3 +3
Units Notes/Conditions
Hz C % % dB dB Bus can be driven blind Measured at controller IC Measured at controller IC
DDVoltage DDBias DDTxPower DDRxPower
100% tested in production tested at room temp to 2 dB 100% tested in production tested at room temp to 2 dB
DDTemperatu
re
-40 3.0 0 -10 -28
85 4.0 90 5 -5
C V mA dBm dBm
DDVoltage DDBias DDTxPower DDRxPower
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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FWLF1621P2Txx SFP Product Specification - November 2007
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X.
Mechanical Specifications
Finisar's Multi-rate CWDM Small Form Factor Pluggable (SFP) transceivers are compatible with the dimensions defined by the SFP Multi-Sourcing Agreement (MSA).
FWLF1621P2Txx Outline Drawing - units in inches [mm]
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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FWLF1621P2Txx SFP Product Specification - November 2007
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XI. PCB Layout and Bezel Recommendations
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FWLF1621P2Txx SFP Product Specification - November 2007
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connected to the SFP transceiver.
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FWLF1621P2Txx SFP Product Specification - November 2007
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XII.
References
1. "SONET Transport Systems: Common Generic Criteria", Telcordia Technologies, GR-253-CORE, Issue 3, Sept 2000. 2. IEEE Std 802.3. IEEE Standards Department, 2000.(*) 3. "Fibre Channel Draft Physical Interface Specification (FC-PI 10.0)". American National Standard for Information Systems.(*) 4. "Optical Interfaces for Course Wavelength Division Multiplexing Applications", ITU-T recommendation G.695, January 2005. 5. Small Form Factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 2000. Documentation is currently available at Finisar upon request. 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. 8. "AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM", Atmel Corporation. www.Atmel.com 9. "Application Note AN-2030: Digital Diagnostic Monitoring Interface for Optical Transceivers", Finisar Corporation, April 2002. 10. "Digital Diagnostic Monitoring Interface For Optical Transceivers Rev 9.3". SFF Document No. SFF-8472. (*) Neither IEEE 802.3 nor FC-PI 10.0 specifies a 1621 nm DFB single mode interface. The FWLF1621P2Txx complies with these specifications except for the following optical parameters, which have different values: transmitter wavelength, extinction ratio, receiver sensitivity, and transmit output power. See Section V for details. For More Information Finisar Corporation 1308 Moffett Park Drive Sunnyvale, CA 94089-1133 Tel. 1-408-548-1000 Fax 1-408-541-6138 sales@finisar.com www.finisar.com
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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FWLF1621P2Txx SFP Product Specification - November 2007
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Revision History
Revision A Date 3-12-2008 * * * * * * * * * Draft version FF Description
(c) Finisar Corporation November 2007 Rev.A Preliminary and Confidential
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