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Finisar
Preliminary Product Specification GPON OLT Class B+ Pigtailed RoHS Compliant Transceiver FTGL2025S1TUx
PRODUCT FEATURES * Bi-directional transceivers operating at 2.488 Gbit/s downstream, 1.244 Gbit/s upstream Di-plexer operation at 1490 nm Tx, and 1310 nm digital Rx Burst-mode APD receiver Continuous mode transmitter with DFB laser Built-in digital diagnostic functions Standard small form-factor (SFF) package with fiber pigtailed SC/UPC connector in compliant with GR326 and UL 94V0 flammability The pigtail comes in a tight buffer 0.9mm, 9/125/250 SMF-28 or equivalent Single 3.3V power supply Industrial operating temperature range: -40C to 85C APPLICATIONS * GPON OLT Di-plexer * ITU-T G.984.2 Class B+ * Built-in digital diagnostic functions
* * * * *
*
* *
Finisar's FTGL2025FDIUx bi-directional transceivers comply with the ITU-T GPON standard11 G984.2 Class B+ for operation at 2.488 Gbit/s downstream and 1.244 Gbit/s upstream. The di-plexer function provides burst-mode APD receiver at 1310nm, and continuous DFB transmitter at 1490 nm. Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA1. Details to the EEPROM map for this module could be made available upon request. Finisar's FTGL2025FDIUx SFF transceivers are compatible with the Small Form Factor Multi-Sourcing Agreement (MSA) 2. PRODUCT SELECTION
FTGL2025S1TUx
x S Standard Pigtail length
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
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 B-M Reset Reserved RX GND Reserved Rx Vcc RX GND RX Vcc RX SD RX DRX D+ TX Vcc TX GND TX Dis TX D+ TX DTX GND SCL SDA TX Fail TX GND Description/Comments B-M RX Reset Reserved (no connect) Receiver Ground. Reserved (no connect) Receive Vcc MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard Transmitter Ground Serial clock interface Serial data interface Laser safety shut down TX Ground Interface Input/LVTTL; Active high and control by the host Reserved for future application Reserved for future application
Output/LVTTL; Active high Output/LVPECL; DC coupled termination needed on the host Output/LVPECL; DC coupled termination needed on the host
Input/LVTTL; Active high and control by the host Input/CML AC coupled with internal 100Ohms termination Input/CML AC coupled with internal 100Ohms termination Input; Recommend a tri-state buffer with 10K pull up on the host I/O; Open drain. Recommend 1K pull up on the host Output/LVTTL open drain with internal pull up
MS
20 19 18 17 16 15 14 13 12 11
TOP VIEW
1 2 3 4 5 6 7 8 9 10
MS
SFF Pinout Top View (SFF MSA dimension but with bi-directional pigtail)
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
Finisar
II.
Absolute Maximum Ratings
Parameter Maximum Supply Voltage Storage Temperature Case Operating Temperature Relative Humidity Fiber Output Power (no damage) Optical Input Power (no damage)
Symbol Vcc TS TOP RH Pf PIN
Min 0 -40 -40 0
Typ
Max 4.3 85 85 95 20 5
Unit V C C % dBm dBm
Ref.
1
III.
Electrical Characteristics (TOP = -40 to 85 C, VCC = 3.1 to 3.5 Volts)
Symbol Vcc Icc Rin Vin,pp VD VEN Min 3.00 Typ 3.3 Max 3.60 450 Unit V mA mV V V s 1800 350 0.5 Vcc
mV ps
Parameter Supply Voltage Supply Current Transmitter Input Differential Impedance Differential Data Input Voltage Transmit Disable Voltage Transmit Enable Voltage Transmit Disable Assert Time Receiver Output Differential Impedance Differential Data Output Voltage Data Output Rise and Fall Time SD Fault SD Normal Power Supply Rejection Notes: 1. Non condensing. 2. 20 - 80 % 3. 0.01 to 10 MHz
Ref.
100 500 2.0 0 1600 Vcc 0.8 10 100
Vout,pp, LVPECL tr, tf VSD fault VLOS norm PSR
500
2
0 2.4 100
V V mVpp
3
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
Finisar
IV.
Optical Characteristics (TOP = -40 to 85 C, VCC = 3.00 to 3.60 Volts)
Symbol Min Typ Max -47 -20 -20 Unit dB dB dB Mb/s nm nm dB dBm dB bits UI dB Mb/s nm dBm dBm dB bits dBm dBm dB ns Ref.
Parameter Cross-talk 1490nm Tx to 1310nm Rx Reflectance 1480-1550 nm Reflectance 1260-1360 nm Transmitter Data Rate (Continuous Wave) Center Wavelength (CW) Spectral Width (-20dB) Side Mode Suppr. Ratio Output Opt. Pwr Optical Extinction Ratio CID Generated Jitter (Additive) Tx Power D.D. Accuracy Receiver Data Rate Optical Center Wavelength Average Rx Sensitivity Overload Dynamic Range CID SD Assert SD De-Assert SD Hysteresis SD Assert/De-Assert Time
BR SSR POUT ER Jadd
1480 30 1.5 10 72
2488.32 1490
1500 1.0 +5
1
.20 3 1244.16 1310
2
BR C RSENS1
1260 -8 15 72
1360 -28
3 4
SDA SDD SDT
-31.5 -45.0 0.5 1000
Notes: 1. Class 1 Laser Safety per FDA/CDRH and EN (IEC) 60825 regulations. 2. Jitter measurements taken using Agilent OMNIBERT 718 in accordance with GR-253. 3. With worst-case extinction ratio. Measured with a PRBS 223-1 test, 10-10 BER. 4. The receiver operates in burst mode at 1244 Mbs with up to 15dB difference between High and Low Level for adjacent ONT Cells.
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
Finisar
V.
Reset Timing Requirement
ONU #B
Rx input ONU #A d0
Rx reset
d1
d2 CPA reset d3 Rx output ONU #A d3 ONU #B
d0 = 32bits d1 > 96bits - d0 d3 = ~3ns
VI
Fiber Pigtail Specifications
Symbol Min Typ SMF-28E 900 1000 SC/UPC Max Units m mm mm N Ref.
Parameter Fiber Type Jacket - Tight Buffer Pigtail Length Connector Type Bending Radius of fiber Tensile Force on Pigtail Notes:
950 25
1050
2
VII
Environmental Specifications
Industrial operating temperature range:
Parameter Case Operating Temperature Storage Temperature Symbol Top Tsto Min -40 -40 Typ Max 85 100 Units C C Ref.
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
Finisar
VIII
Regulatory Compliance
Finisar transceivers are Class 1 Laser Products and comply with US FDA regulations. These products are certified by TUV 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.
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
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IX
Digital Diagnostic Functions
Finisar FTGL2025S1TUx transceivers support the 2-wire serial communication protocol as defined in the SFP MSA1. The standard SFP serial ID provides access to identification information that describes the transceiver's capabilities, standard interfaces, manufacturer, and other information. Additionally, Finisar 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 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, the serial clock signal (SCL) 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) is bidirectional 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 contact Finisar. Digital diagnostics for the FTGL2025S1TUx are internally calibrated by default.
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
Finisar
X.
Recommended Host Board Supply Filtering Network
VccT
0.1 uF
1 uH
VccR
0.1 uF
1 uH 10 uF 0.1 uF
3.3 V
10 uF
Module
Host Board
(c) Finisar Corporation April 2, 2008 Rev.A.1
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
Finisar
XI.
Mechanical Specifications
Finisar's Small Form Factor (SFF) transceivers are compatible with the dimensions defined by the SFF Multi-Sourcing Agreement (MSA) 3.
FTGL2025S1TUx
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FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008
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XII. 1.
References Gigabit-capable Passive Optical Networks (GPON): Physical Media Dependent (PMD) layer specification. ITU-T G.984.2 Class B+, and amendments dated February 2006. Small Form Factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 2000. Documentation is currently available at Finisar upon request. Small Form Factor (SFF) Transceiver Multi-Source Agreement (MSA). Documentation is currently available at Finisar upon request.
2.
3.
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
(c) Finisar Corporation April 2, 2008 Rev.A.1
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