Finisar FWDM-1629-XX Owner's manual

F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 1
Rev C, February 2005
Preliminary Product Specification
DWDM SFP Transceiver
FWDM-1629-XX
PRODUCT FEATURES
•Up to 1.25 Gb/s bi-directional data
links
•Hot-pluggable SFP footprint
•Temperature-stabilized DWDM-
rated DFB laser transmitter
•100GHz ITU Grid, C Band
•Low dispersion DFB laser suitable
•Metal enclosure for low EMI
•Extended operating range: -5°C to
70°C case temperature
•Wavelength controlled within ±0.1
nm over life and temperature
•Extended link budget with APD
receiver technology
•GbE and 1X FC compliant
APPLICATIONS
•Amplified DWDM networks
•Bandwidth aggregation
•Ring topologies with OADM
Finisar’s Dense Wavelength-Division Multiplexing (DWDM) transceivers offer DWDM
transport with dramatically lower power and cost in a standard pluggable Small Form
Factor Pluggable (SFP) package. The FWDM-1629 is designed expressly for service
providers deploying DWDM networking equipment in metropolitan Ethernet and SAN
networks. The fiber link budget has been enhanced to 30dB with an Avalanche Photo
Diode (APD) receiver.
In addition, digital diagnostic features are implemented as described in Finisar
Application Note AN-2030, “Digital Diagnostic Monitoring Interface for Optical
Transceivers”2.

F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 2
Rev C, February 2005
PRODUCT SELECTION
Product Code Frequency (THz) Center Wavelength (nm)
FWDM -1629-17 191.7 1563.86
FWDM -1629-18 191.8 1563.05
FWDM -1629-19 191.9 1562.23
FWDM -1629-20 192.0 1561.42
FWDM -1629-21 192.1 1560.61
FWDM -1629-22 192.2 1559.79
FWDM -1629-23 192.3 1558.98
FWDM -1629-24 192.4 1558.17
FWDM -1629-25 192.5 1557.36
FWDM -1629-26 192.6 1556.55
FWDM -1629-27 192.7 1555.75
FWDM -1629-28 192.8 1554.94
FWDM -1629-29 192.9 1554.13
FWDM -1629-30 193.0 1553.33
FWDM -1629-31 193.1 1552.52
FWDM -1629-32 193.2 1551.72
FWDM -1629-33 193.3 1550.92
FWDM -1629-34 193.4 1550.12
FWDM -1629-35 193.5 1549.32
FWDM -1629-36 193.6 1548.51
FWDM -1629-37 193.7 1547.72
FWDM -1629-38 193.8 1546.92
FWDM -1629-39 193.9 1546.12
FWDM -1629-40 194.0 1545.32
FWDM -1629-41 194.1 1544.53
FWDM -1629-42 194.2 1543.73
FWDM -1629-43 194.3 1542.94
FWDM -1629-44 194.4 1542.14
FWDM -1629-45 194.5 1541.35
FWDM -1629-46 194.6 1540.56
FWDM -1629-47 194.7 1539.77
FWDM -1629-48 194.8 1538.98
FWDM -1629-49 194.9 1538.19
FWDM -1629-50 195.0 1537.40
FWDM -1629-51 195.1 1536.61
FWDM -1629-52 195.2 1535.82
FWDM -1629-53 195.3 1535.04
FWDM -1629-54 195.4 1534.25
FWDM -1629-55 195.5 1533.47
FWDM -1629-56 195.6 1532.68
FWDM -1629-57 195.7 1531.90
FWDM -1629-58 195.8 1531.12
FWDM -1629-59 195.9 1530.33
FWDM -1629-60 196.0 1529.55
FWDM -1629-61 196.1 1528.77

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 3
Rev C, February 2005
I. Pin Descriptions
Pin Symbol Name/Description Ref.
1VEET Transmitter Ground (Common with Receiver Ground) 1
2TFAULT Transmitter Fault
3TDIS Transmitter Disable. Laser output disabled on high or open 2
4MOD_DEF(2) Module Definition 2. Data line for Serial ID 3
5MOD_DEF(1) Module Definition 1. Clock line for Serial ID 3
6MOD_DEF(0) Module Definition 0. Grounded within the module 3
7Rate Select No connection required 4
8LOS Loss of Signal indication. Logic 0 indicates normal operation 5
9VEER 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. 100 ohm termination between TD+
and TD-, AC Coupled thereafter
19 TD-Transmitter Inverted DATA in. See TD+
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 –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
VeeT
VeeR
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

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 4
Rev C, February 2005
Diagram of Host Board Connector Block Pin Numbers and Names
II. Absolute Maximum Ratings
Parameter Symbol Min Typ Max Unit Ref.
Maximum Supply Voltage Vcc -0.5 4.7 V
Storage Temperature TS-10 85 °C
Case Operating Temperature TOP -570 °C
III. Electrical Characteristics (TOP = -5 to 70 °C, VCC = 3.13 to 3.50 Volts)
Parameter Symbol Min Typ Max Unit Ref.
Supply Voltage Vcc 3.13 3.30 3.50 V
Supply Current Icc 305 mA
Inrush Current Isurge Icc+30 mA
Maximum Power Pmax 1.0W
TRANSMITTER
Input differential impedance Rin 100 Ω1
Single ended data input swing Vin,pp 250 1200 mV
Transmit Disable Voltage VDVcc –1.3 Vcc V
Transmit Enable Voltage VEN Vee Vee+ 0.8 V2
RECEIVER
Single ended data output swing Vout,pp 175 1000 mV 3
Data output rise time tr150 ps 4
Data output fall time tf150 ps 4
LOS Fault VLOSfault Vcc –0.5 VccHOST V5
LOS Normal VLOS norm Vee Vee+0.5 V5
Power Supply Rejection PSR 100 mVpp 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 –80 %
5. 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.

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 5
Rev C, February 2005
IV. Low Speed Signals
Parameter
Symbol Min
Typ Max Units Notes/Conditions
RX_LOS Assert Level -42 -36 dBm
RX_LOS Deassert Level -34 -32 dBm
RX_LOS Hysteresis 0.5 2dB
RX_LOS Assert Delay t_loss_on 100 µsec From detection of loss of signal
to assertion of RX_LOS
RX_LOS Negate Delay t_loss_off 100 µsec From detection of presence of
signal to negation of RX_LOS
TX_DISABLE Assert Time t_off 10 µsec
Rising edge of TX_DISABLE to
fall of output signal below 10%
of nominal
TX_DISABLE Negate Time t_on 1000 µsec Falling edge of TX_DISABLE
to rise of output signal above
90% of nominal. Time
indicated is under steady-state
temperature conditions.
TX_DISABLE Reset Time t_reset 10 µsec TX_DISABLE HIGH before
TX_DISABLE set LOW
TX_FAULT Assert -0.2 +0.2 nm TX_Fault will assert before the
device is outside of specified
wavelength range

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 6
Rev C, February 2005
V. Optical Parameters
Parameter
Symbol Min Typ Max Units Notes/Conditions
TRANSMITTER CHARACTERISTICS
Center Wavelength Spacing 100 GHz Corresponds to
approximately 0.8 nm
Spectral Width ∆λ20 0.2 0.3 nm Full width, -20dB from
max
Transmitter Center Wavelength –
End of Life λcX -100
XX + 100 pm X = specified center
wavelength
Transmitter Center Wavelength –
Start of Life λcY -25
YY + 25 pm Y = X –60pm
Side Mode Suppression Ratio
(SMSR) SMSR 30 dB Modulated
Optical Rise/Fall Time tr / tf200 ps Unfiltered, 80% -20%
Transmitter Optical Output Power Pout 0+4 dBm Average power coupled
into single mode fiber
Transmitter Extinction Ratio OMI 9.0 dB
Transmitter Eye Opening40 %IEEE 802.3 and Fibre
Channel Eye Mask
Margin
Relative Intensity Noise RIN -120 dB/Hz
Dispersion Penalty at 180km 3.0 dB 3600ps/nm. See Note 3.
RECEIVER CHARACTERISTICS
Optical Input Wavelength Pin 1520 1570 nm
Receiver Jitter Generation 100 ps Peak to peak, -25 dBm
Rx power
Optical Input Power
(BER < 10 -9)Pin -32 -9dBm 1.25 Gb/s w/ PRBS 2 7 -1
Optical Input Power
(BER < 10 -12)Pin -30 -9dBm 1.25 Gb/s w/ PRBS 2 7 -1
Optical Input Power –
Receiver Damage Threshold 6dBm
Receiver Reflectance RRX -27 dB
OSNR Limit OSNRmin 20 dB
OSNR Penalty 2.0 dB For OSNR = OSNRmin.
See Note 4.
Notes:
1. Parameters are specified over temperature and voltage, at end of life unless otherwise noted.
2. All parameters are measured on a Finisar SFP Evaluation Card unless otherwise noted.
3. Dispersion penalty is measured in loop back with OSNR set at Rx <28 dB. Data rate and pattern used same
as specified for Optical Input Power. Dispersion penalty is measured at BER = 10-10
4.OSNR penalty is measured in loop back. Data rate and pattern used is same as specified for Optical Input
Power. OSNR penalty is measured at BER = 10-10

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 7
Rev C, February 2005
VI. Wavelength Stabilization
The laser transmitter will not be turned on until its temperature is adjusted to ensure
operation within the specified channel (X +/-0.4nm). This temperature stabilization time is
dependent on the ambient temperature conditions, but will typically occur within 90
seconds of powering the device. The device will transmit within the specified wavelength
tolerance (X +/-0.1nm) within 5 seconds of transmitter operation.
VII. General Specifications
VIII. Environmental Specifications
Parameter
Symbol
Min Typ Max Units Notes/Conditions
Operating Temp Top -570 °C Case temperature measured on top-side of
device
Storage Temp Tsto -10 85 °C Ambient temperature
Eye Safety CDRH and IEC-825 Class 1 Laser
Product. See Note 1
Note 1: Complies with FDA performance standards for laser products except for deviations pursuant to
Laser Notice No. 50, dated July 26, 2001.
Parameter
Symbol
Min 1.25 Max Units Notes/Conditions
Data Rate BR 1.06 1.25 Gb/sec Fibre Channel, IEEE 802.3
compatible
Total System Budget 30 32 dB @ 1.25 Gb/s, BER <10-12 w/
PRBS 2-7-1. See Note 1
Note 1: Total system budget is defined as Pout –Pin –typical connector losses.

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 8
Rev C, February 2005
IX. Serial Communication Protocol
All Finisar SFPs support the 2-wire serial communication protocol outlined in the SFP
MSA1. These SFPs use an Atmel AT24C01A 128 byte E2PROM with an address of A0h.
For details on interfacing with the E
2PROM, see the Atmel data sheet titled
“AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM.”4
Finisar’s DWDM SFPs also support extended diagnostic features as described in Finisar
Applications Note AN-2030, “Digital Diagnostic Monitoring Interface for Optical
Transceivers”2. A controller IC that monitors system parameters such as laser current,
module temperature, transmitter power, and received power is accessible at address A2H.
( E2PROM Description TBD pending MSA)
Parameter
Symbol
Min Typ Max Units Notes/Conditions
I2C Clock for Atmel
(A0H) and Controller
IC (A2H)
Catmel 0100,000 Hz Bus can be driven blind.

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 9
Rev C, February 2005
X. Mechanical Specifications
Finisar’s Multi-rate DWDM Small Form Factor Pluggable (SFP) transceivers are
compatible with the dimensions defined by the SFP Multi-Sourcing Agreement (MSA).
Figure 1. DWDM SFP Outline Drawing

FWDM-1629-XX DWDM SFP Preliminary Product Specification –February 2005F i n i s a r
Finisar Corporation PRELIMINARY and Confidential Page 10
Rev C, February 2005
XI. Ordering Information
Part Number Description
FWDM-1629-XX DWDM SFP with APD Receiver
XX = channel number (see product selection on page 2)
XII. References
1. Small Form Factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA),
September 2000. Documentation is currently available from Finisar upon request.
2. “Application Note AN-2030: Digital Diagnostic Monitoring Interface for Optical
Transceivers”, Finisar Corporation, April 2002.
3. “AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM”, Atmel Corporation.
www.Atmel.com
4. “Digital Diagnostic Monitoring Interface For Optical Transceivers Rev 6.1”,
September, 2004. Documentation is currently available from Finisar upon request.
For More Information:
Finisar Corporation
1308 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. [phone]
Fax [phone]
[email protected]
www.finisar.com