Finisar Preliminary Product Specification GPON ONU Class B+ Pigtailed RoHS Compliant Transceiver FTGN3025 Q1TAx • PRODUCT FEATURES • Bi-directional transceivers operating at 2.488 Gbit/s downstream, 1.244 Gbit/s upstream • Integrated thin film filters supporting triple-play at 1310 nm digital Tx, 1490 nm digital Rx and 1555 nm analog Rx • Burst-mode transmitter with DFB laser • Continuous mode APD digital receiver and analog PIN receiver for video overlay • 2”x2” package size with fiber pigtailed SC/APC connector in compliant with GR326 • 3.3V supply for digital and 12V for analog • Industrial operating temperature range: -40°C to 85°C Built-in digital diagnostic functions APPLICATIONS • GPON ONU Tri-plexer • ITU-T G.984.2 Class B+ Finisar’s FTGN3025Q1TAx 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 tri-plexer function provides burst-mode transmitter at 1310nm, digital receiver at 1490 nm and analog receiver at 1555nm for video overlay. Digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA. PRODUCT SELECTION FTGN3025Q1TAx x S © Finisar Corporation April 2 2008 Rev.A.1 Standard Pigtail Length Page 1 FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 I. Finisar Pin Descriptions Pin 1 2 Symbol GND GND 3 Rx Vcc 4 SD Signal Detect 5 RxD + Rx Data Out Positive 6 RxD - Rx Data Out Negative 7 BEN + Burst Enable Positive 8 BEN - Burst Enable Negative 9 GND Ground 10 TxD + Tx Data In Positive 11 GND Ground 12 TxD - Tx Data In Negative 13 Tx Vcc Digital Tx Power Supply (+3.3V) 14 SDA Serial Data 15 SCL Serial Clock 16 INT 17 A_Vcc 18 D_Vcd 19 Reset Reset 20 GND RF GND RF OUT RF GND Ground 21 22 23 Name/Description Ground Ground Digital Rx Power Supply (+3.3V) Interrupt, Module Fail Detect Analog Rx Power Supply (+12V) Digital Power Supply (+3.3V) I/O Description Ref. LVTTL Output, Active HIGH, host to implement pull up resistor. Recommended value of 4.7-10KΩ LVPECL Output, AC-coupled, 100Ω differential termination recommended on host Board LVPECL Output, AC-coupled, 100Ω differential termination recommended on host Board LVPECL Output, DC-coupled, Internal 100Ω differential termination LVPECL Input, DC-coupled, Internal 100Ω differential termination LVPECL Input, DC-coupled, Internal 100Ω differential termination LVPECL Input, DC-coupled, Internal 100Ω differential termination LVTTL, host to implements pull up resistor. Recommended value of 4.7-10KΩ LVTTL, host to implements pull up resistor. Recommended value of 4.7-10KΩ LVTTL Output, Active LOW, host to implement pull up resistor. Recommended value of 4.7-10KΩ LVTTL, Active LOW, Implemented internal to the module pull up resistor of 50KΩ; Host to implement 10KΩ pull downistor RF Ground RF Output 75Ω Termination RF Ground © Finisar Corporation April 2 2008 Rev.A.1 Page 2 Finisar FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 II. Absolute Maximum Ratings Parameter Maximum Supply Voltage (+3.3V) Maximum Supply Voltage (+12V) Storage Temperature Case Operating Temperature Relative Humidity Fiber Output Power (no damage) Optical Input Power (no damage) Symbol Vcc Vcc TS TOP RH Pf PIN Min -0.5 0 -40 -40 0 Typ Max 4.0 15 85 85 95 20 5 Unit V V °C °C % mW dBm Ref. 1 2 Notes: 1. At the top center of the module 2. Non condensing III. Electrical Characteristics (TOP = -40 to 85 °C, VCC = 3.1 to 3.5 Volts) Parameter Supply Voltage -Digital (+3.3V) Supply Voltage – Analog Supply Current – digital circuit Supply Current – analog circuit Power Dissipation – digital circuit Power Dissipation – analog circuit Power Supply Rejection Digital Transmitter Input differential impedance Differential Input Swing for Transmit Data and Burst Transmit Enable Data rise/fall time Duty Cycle Common Mode Input Voltage Burst Transmit Enable/Disable Assert Time Digital Receiver Differential Output Swing for Receive Data Data rise/fall time SD Fault SD Normal Jitter Tolerance Jitter Transfer Symbol Vcc VccA IccD IccA Min 3 11.4 PA PSNR Rin Vin,pp tr RDuty Typ 3.3 12 1080 Max 3.6 12.6 330 250 1260 2250 30 Unit V V mA mA mW mW mVpp 1600 Ω mV 200 105 Vcc-1.0 12.8 ps % V ns 100 200 95 1.40 100 BEN Vout,pp 300 1200 mV tr VSD fault VSD norm 0 2 160 0.5 Vcc ps V V UI dB G.984.2 G.984.2 Ref. 1 2 3 4 Notes: 1. Upto 10MHz 2. 20 – 80 % of peak to peak amplitude 3. Rduty = (A/0.5*B))*100 © Finisar Corporation April 2 2008 Rev.A.1 Page 3 Finisar FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 4. 16 bits data at 1244.16Mb/s Parameter Supply Voltage -Digital (+3.3V) Supply Voltage – Analog Supply Current – digital circuit Supply Current – analog circuit Power Dissipation – digital circuit Power Dissipation – analog circuit Power Supply Rejection Digital Transmitter Input differential impedance Differential Input Swing for Transmit Data and Burst Transmit Enable Data rise/fall time Duty Cycle Common Mode Input Voltage Burst Transmit Enable/Disable Assert Time Digital Receiver Differential Output Swing for Receive Data Data rise/fall time SD Fault SD Normal Jitter Tolerance Jitter Transfer Symbol Vcc VccA IccD IccA Min 3.1 11.4 Typ 3.3 12 PA PSNR 1080 Rin Vin,pp 100 tr RDuty 200 95 1.40 100 BEN Max 3.5 12.6 330 250 1260 2250 30 Unit V V mA mA mW mW mVpp 1600 Ω mV 200 105 Vcc-1.0 12.8 ps % V ns Vout,pp 300 1200 mV tr VSD fault VSD norm 0 2 160 0.5 Vcc ps V V UI dB G.984.2 G.984.2 Ref. 1 2 3 4 Notes: 5. Upto 10MHz 6. 20 – 80 % of peak to peak amplitude 7. Rduty = (A/0.5*B))*100 8. 16 bits data at 1244.16Mb/s © Finisar Corporation April 2 2008 Rev.A.1 Page 4 Finisar FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 IV. Optical Characteristics (TOP = -40 to 85 °C, VCC = 3.1 to 3.5 Volts) Parameter Cross-talk 1310nm Tx to 1490 Rx Cross-talk 1310nm Tx to 1555nm Rx Isolation 1490nm ext. to 1555nm Rx Isolation 1555nm ext. to 1490nm Rx Back reflection at 1310 nm Back reflection at 1490 nm Back reflection at 1555 nm Transmitter Data Rate Optical Wavelength Spectral Width (-20dB) Output Optical Power Optical Extinction Ratio Transmitter Ouput Power at Tx off Optical Rise/Fall Time Digital Receiver Data Rate Optical Center Wavelength Average Rx Sensitivity Overload Optical Input Return Loss SD Assert SD De-Assert SD Hysteresis SD Asser/De-assert time Rx Power D.D. Accuracy Analog Receiver Operating Wavelength Frequency Range Automatic gain control time constant Channel Bandwidth Channel Spacing Channel Plan Optical Return Loss Optical Input Power Optical modulation index (per channel) RF Output Power: 55 MHz 550 MHz 870 MHz Responsivity (Target) EINC (optical thermal noise) RF Output Flatness RF Output Return Loss Output Impedance Composite Second Order Distortion Symbol Min Typ Max -47 -47 30 30 -20 -20 -20 BR λ σ POUT ER 1260 1244.16 1310 0.5 10 1360 1 5 -45 tr/ tf BR λC RSENS1 Roverload ORL SDA SDD 250 1480 2488.32 1490 -30 1500 -28 -8 20 -28 -38 0.5 100 ±3 λA 1550 54 0.5 1555 Unit dB dB dB dB dB dB dB Mb/s nm nm dBm dB dBm ps Mb/s nm dBm dBm dB dBm dBm dB µs dB Ref. 1 2 3 4 5 1560 870 nm MHz TAGC s 6 4 MHz 6 MHz 40 Analog channels at 54-550MHz; 63 Digital chanels 6dB below analog (225-870MHz) ORL 20 dB PIN -8 2 dBm 7 OMI 4.3 % 18.5 20.1 22.5 R S22 Ω CSO © Finisar Corporation April 2 2008 Rev.A.1 dBmV/ channel 0.8 0 14 6.5 4 A/W pA/rtHz dB dB -55 dBc 75 Page 5 Finisar FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 Composite Triple Beat Carrier to Noise Ratio CTB CNR -55 46 dBc dB Notes: 1. Line code is Scrambled NRZ, Burst Mode 2. Class 1 Laser Safety per FDA/CDRH and EN (IEC) 60825 regulations. Please refer to ITU-T G.984.2 for the eye mask 3. Unfiltered, 20-80% 4. Line code is Scrambled NRZ, Continuous Mode 5. With worst-case extinction ratio. Measured with a PRBS 223-1 test pattern. BER is 10-10 6. This requirement could be substitude by the AGC time constant or vice versa 7. Target is 10dB dynamic range © Finisar Corporation April 2 2008 Rev.A.1 Page 6 Finisar FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 V. Fiber Pigtail Specifications Parameter Fiber Type Jacket - Tight Buffer Pigtail Length Connector Type Bending Radius of fiber Tensile Force on Pigtail Symbol Min 560 Typ SMF-28E 900 620 SC/APC Max Units 640 μm mm 2 mm N Max 85 85 Units °C °C 25 Ref. Notes: VI. Environmental Specifications Industrial operating temperature: Parameter Case Operating Temperature Storage Temperature VII. Symbol Top Tsto Min -40 -40 Typ Ref. 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 7 Finisar FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 VIII. Reset Timing Reset timing diagram during module boot up Vcc power supply 120ms Reset (pin 19) uP condition In reset status (not working) 10ms uP boot up Configure LDPA 10ms Configure RF Normal operation ONU Transceiver doesn’t care Burst Enable Tx output Burst Enable is the master Rx output RF output Reset timing diagram during normal operation Vcc power supply Reset (pin 19) uP condition Burst Enable 120ms Normal operation In reset status (not working) uP boot up 10ms Configure LDPA 10ms Configure RF Normal operation ONU Transceiver doesn’t care Tx output Burst Enable is the master Rx output RF output IX. Digital Diagnostic Functions Finisar FTGN3025Q1TAx 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 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, 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 contact Finisar. © Finisar Corporation April 2 2008 Rev.A.1 Page 8 FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 X. Finisar Mechanical Specifications Module label to be: 1) affixed at the opposite end of the fiber pigtail exit 2) include vendor part number and serial number, manufacturing date code, rev level 3) include regulatory compliance information FTGN3025Q1TAx © Finisar Corporation April 2 2008 Rev.A.1 Page 9 FTGN3025Q1TAx GPON ONU Triple-play Product Specification - April, 2008 XI. 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. XII. 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