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: -40°C to 85°C Built-in digital diagnostic functions APPLICATIONS • GPON OLT Di-plexer • ITU-T G.984.2 Class B+ 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 © Finisar Corporation April 2, 2008 Rev.A.1 Standard Pigtail length Page 1 FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 I. Finisar Pin Descriptions Pin 1 2 3 4 5 6 7 8 Symbol B-M Reset Reserved RX GND Reserved Rx Vcc RX GND RX Vcc RX SD 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 9 RX D- MSA 2x5 standard 10 RX D+ MSA 2x5 standard 11 12 13 14 15 16 TX Vcc TX GND TX Dis TX D+ TX DTX GND MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard MSA 2x5 standard Transmitter Ground 17 SCL Serial clock interface 18 19 20 SDA TX Fail TX GND 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) © Finisar Corporation April 2, 2008 Rev.A.1 Page 2 Finisar FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 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) III. 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 Electrical Characteristics (TOP = -40 to 85 °C, VCC = 3.1 to 3.5 Volts) 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 Symbol Vcc Icc Rin Vin,pp VD VEN Min 3.00 Typ 3.3 Max 3.60 450 Unit V mA 1600 Vcc 0.8 10 Ω mV V V μs 1800 mV 350 0.5 Vcc ps 2 V V mVpp 3 100 500 2.0 0 Ω 100 Vout,pp, LVPECL tr, tf VSD fault VLOS norm PSR 500 0 2.4 100 Ref. Notes: 1. Non condensing. 2. 20 – 80 % 3. 0.01 to 10 MHz © Finisar Corporation April 2, 2008 Rev.A.1 Page 3 Finisar FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 IV. Optical Characteristics (TOP = -40 to 85 °C, VCC = 3.00 to 3.60 Volts) 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 Symbol BR λ σ SSR POUT ER Min Typ 1480 2488.32 1490 30 1.5 10 72 1500 1.0 +5 Jadd BR λC RSENS1 Max -47 -20 -20 .20 ±3 1260 1244.16 1310 1360 -28 -8 15 72 SDA SDD SDT -31.5 -45.0 0.5 1000 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. 1 2 3 4 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. © Finisar Corporation April 2, 2008 Rev.A.1 Page 4 Finisar FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 V. Reset Timing Requirement Rx input ONU #B d0 ONU #A d1 Rx reset d2 CPA reset d3 d3 Rx output ONU #B ONU #A d0 = 32bits d1 > 96bits – d0 d3 = ~3ns VI Fiber Pigtail Specifications Parameter Fiber Type Jacket - Tight Buffer Pigtail Length Connector Type Bending Radius of fiber Tensile Force on Pigtail Symbol Min 950 Typ SMF-28E 900 1000 SC/UPC Max Units 1050 μm mm 2 mm N Max 85 100 Units °C °C 25 Ref. Notes: VII Environmental Specifications Industrial operating temperature range: Parameter Case Operating Temperature Storage Temperature Symbol Top Tsto © Finisar Corporation April 2, 2008 Rev.A.1 Min -40 -40 Typ Ref. Page 5 FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 VIII Finisar 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. © Finisar Corporation April 2, 2008 Rev.A.1 Page 6 FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 IX Finisar 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. © Finisar Corporation April 2, 2008 Rev.A.1 Page 7 Finisar FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 X. Recommended Host Board Supply Filtering Network 1 uH VccT 0.1 uF 1 uH VccR 0.1 uF Module 10 uF 3.3 V 0.1 uF 10 uF Host Board © Finisar Corporation April 2, 2008 Rev.A.1 Page 8 FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 XI. Finisar Mechanical Specifications Finisar’s Small Form Factor (SFF) transceivers are compatible with the dimensions defined by the SFF Multi-Sourcing Agreement (MSA) 3. FTGL2025S1TUx © Finisar Corporation April 2, 2008 Rev.A.1 Page 9 FTGL2025S1TUx Pigtailed SFF Product Specification -April, 2008 XII. Finisar References 1. Gigabit-capable Passive Optical Networks (GPON): Physical Media Dependent (PMD) layer specification. ITU-T G.984.2 Class B+, and amendments dated February 2006. 2. Small Form Factor Pluggable (SFP) Transceiver Multi-Source Agreement (MSA), September 2000. Documentation is currently available at Finisar upon request. 3. Small Form Factor (SFF) Transceiver Multi-Source Agreement (MSA). Documentation is currently available at Finisar upon request. XIII. For More Information Finisar Corporation 1389 Moffett Park Drive Sunnyvale, CA 94089-1133 Tel. 1-408-548-1000 Fax 1-408-541-6138 [email protected] www.finisar.com © Finisar Corporation April 2, 2008 Rev.A.1 Page 10