Fast Ethernet SFP Single Mode Transceivers with Digital Diagnostics TRPAFESM Product Description The TRPAFESM SFP series of fiber optic transceivers with integrated digital diagnostics monitoring functionality provide a quick and reliable interface for 100BASE-FX Fast Ethernet single mode applications. The diagnostic functions, alarm and warning features as described in the Multi-Source Agreement (MSA) document, SFF-8472 (Rev. 9.4), are provided via an I2C serial interface. The transmitter optical output power is compliant with ANSI X3.184-1993 standard for FDDI SMF-PMD category I. All modules satisfy Class I Laser Safety requirements in accordance with the U.S. FDA/CDRH and international IEC-60825 standards. The transceivers connect to standard 20-pad SFP connectors for hot plug capability. This allows the system designer to make configuration changes or maintenance by simply plugging in different types of transceivers without removing the power supply from the host system. Features Compatible with SFP MSA The transceivers have bail-type latches, which offer an easy and convenient way to release the modules. The latch is compliant with the SFP MSA. Designed for Fast Ethernet 100BASE-FX Applications The transmitter design incorporates a highly reliable 1310nm InGaAsP laser and a driver circuit. The receiver features a transimpedance amplifier IC for high sensitivity and wide dynamic range. The transmitter and receiver DATA interfaces are AC-coupled internally. LV-TTL Transmitter Disable control input and Loss of Signal output interfaces are also provided. The transceivers operate from a single +3.3V power supply over an operating case temperature range of -5°C to +70°C (“B” option) or -40°C to +85°C (“A” option). The housing is made of plastic and metal for EMI immunity. Digital Diagnostics through Serial Interface Internal Calibration for Digital Diagnostics 1310nm Fabry Perot Laser Transmitter Eye Safe (Class I Laser Safety) Hot-pluggable -40°C to +85°C Operating Case Temperature Option TX Fault & Loss of Signal Outputs TX Disable Input Duplex LC Optical Interface Single +3.3V Power Supply Absolute Maximum Ratings Parameter Storage Temperature Operating Case Temperature 1 “B” option “A” option Symbol Minimum Maximum Units Tst - 40 + 85 °C -5 + 70 - 40 + 85 Top °C Supply Voltage Vcc 0 + 4.5 V Input Voltage Vin 0 Vcc V 1 Measured on top side of SFP module at the front center vent hole of the cage. An Oplink Company RevB.-NP 2009.03.01 TRPAFESM Transmitter Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V) All parameters guaranteed only at typical data rate Parameter Operating Data Rate 1 Optical Output Power 2 Center Wavelength Spectral Width (RMS) Symbol Minimum Typical Maximum Units B - 125 - Mb/s PO - 19.0 - - 14.0 dBm λC 1261 - 1360 nm ΔλRMS - - 5.0 nm tr, tf - - 2 ns Phi /Plo 10 - - dB Optical Output Power of OFF Transmitter POFF - - - 45 dBm Duty Cycle Distortion (Peak-to-Peak) DCD - - 1.0 ns RJ - - 0.76 ns DDJ - - 0.6 ns Optical Rise/Fall Time (10% to 90%) Extinction Ratio Random Jitter (peak-to-peak) 3 Data Dependent Jitter (peak-to-peak) Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957 OC-3/STM-1 Eye Mask Optical Output Eye 4 Data rate ranges from 50Mb/s to 266Mb/s. However, some degradation may be incurred in overall performance. Measured average power coupled into single mode fiber. The minimum power specified is at Beginning-of-Life. 3 Defined as 12.6 times the rms value per FDDI SMF-PMD. 4 Compliance with the Optical Pulse Envelope in FDDI SMF-PMD is not specified and is not claimed. 1 2 Receiver Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V) All parameters guaranteed only at typical data rate Parameter Operating Data Rate 1 Typical Maximum Units B - 125 - Mb/s Pmin - 32.5 - 35.0 - dBm - 7.0 0 - dBm Increasing Light Input Plos+ Plos- + 1.5 dB - - 34.0 Decreasing Light Input Plos- - 45.0 - - - 1.5 - - Increasing Light Input t_loss_off - - 100 Decreasing Light Input t_loss_on - - 350 2 Maximum Input Optical Power (2.5x10-10 BER) 2 LOS Hysteresis LOS Timing Delay Minimum Pmax Receiver Sensitivity (2.5x10 BER) -10 LOS Thresholds Symbol dBm dB µs λ 1100 - 1600 nm Contributed Duty Cycle Distortion Jitter (peak-to-peak) DCD - - 0.4 ns Contributed Data Dependent Jitter (peak-to-peak) DDJ - - 1.0 ns RJ - - 2.14 ns Wavelength of Operation Contributed Random Jitter (peak-to-peak) 3 Data rate ranges from 50Mb/s to 266Mb/s. However, some degradation may be incurred in overall performance. 2 Specified in average optical input power, and when measured at 1310nm wavelength, 125Mb/s, 27-1 PRBS with optical input rise/fall time of 2.5ns and optimum sampling. 3 Defined as 12.6 times the rms value per FDDI SMF-PMD. 1 Laser Safety: All transceivers are Class I Laser products per FDA/CDRH and IEC-60825 standards. They must be operated under specified operating conditions. Oplink Communications, Inc. DATE OF MANUFACTURE: This product complies with 21 CFR 1040.10 and 1040.11 Meets Class I Laser Safety Requirements Oplink Communications, Inc. 2 RevB.-NP 2009.03.01 TRPAFESM Transmitter Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Input Voltage Swing (TD+ & TD-) 1 VPP-DIF 0.25 Input HIGH Voltage (TX Disable) 2 VIH 2.0 VIL 0 VOH VOL Input LOW Voltage (TX Disable) 2 Output HIGH Voltage (TX_FAULT) 3 Output LOW Voltage (TX_FAULT) 3 Typical Maximum Units - 2.4 V - VCC V - 0.8 V 2.0 - VCC + 0.3 V 0 - 0.8 V Differential peak-to-peak voltage. There is an internal 4.7 to 10kΩ pull-up resistor to VccT. 3 Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage). 1 2 Receiver Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Maximum Units VPP-DIF 0.6 - 2.0 V VOH 2.0 - VCC + 0.3 V VOL 0 - 0.5 V Output Voltage Swing (RD+ & RD-) 1 Output HIGH Voltage (LOS) Output LOW Voltage (LOS) 2 2 Differential peak-to-peak voltage across external 100Ω load. 2 Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage). 1 Electrical Power Supply Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Maximum Units Supply Voltage VCC 3.13 3.3 3.47 V Supply Current ICC - 175 245 mA Module Definition MOD_DEF(0) pin 6 MOD_DEF(1) pin 5 MOD_DEF(2) pin 4 Interpretation by Host TTL LOW SCL SDA Serial module definition protocol Electrical Pad Layout Host Board Connector Pad Layout 20 TX GND 1 TX GND 19 TD- (TX DATA IN-) 2 TX Fault 1 18 TD+ (TX DATA IN+) 3 TX Disable 2 17 TX GND 4 MOD_DEF(2) 3 16 VccTX 5 MOD_DEF(1) 4 15 VccRX 6 MOD_DEF(0) 14 RX GND 7 NO CONNECTION 6 13 RD+ (RX DATA OUT+) 8 LOS 7 12 RD- (RX DATA OUT-) 9 RX GND 8 11 RX GND 10 RX GND 9 Top of Board Oplink Communications, Inc. Toward Bezel 5 10 Bottom of Board (as viewed thru top of board) 3 20 19 18 17 16 15 Toward ASIC 14 13 12 11 RevB.-NP 2009.03.01 TRPAFESM Example of SFP host board schematic Vcc 3.3V 1μH coil or ferrite bead (<0.2Ω series resistance) Vcc 3.3V + 0.1 10 0.1 + 10 0.1 R R 16 15 TRPAFESM R R 2 TX Fault 8 LOS 4 5 MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) (100Ω to Ground Internally) TX Disable 3 TX DATA IN+ 18 13 RX DATA OUT+ to 50Ω load TX DATA IN- 19 12 RX DATA OUTto 50Ω load 100 6 1, 9, 10, 11, 14, 17, 20 R: 4.7 to 10kΩ Application Notes Electrical Interface: All signal interfaces are compliant with the SFP MSA specification. The high speed DATA interface is differential AC-coupled internally with 0.1μF and can be directly connected to a 3.3V SERDES IC. All low speed control and sense output signals are open collector TTL compatible and should be pulled up with a 4.7 - 10kΩ resistor on the host board. DEF(1:2) appear as NC (no connection), and MOD_DEF(0) is TTL LOW. When the host system detects this condition, it activates the serial protocol (standard two-wire I2C serial interface) and generates the serial clock signal (SCL). The positive edge clocks data into the EEPROM segments of the SFP that are not write protected, and the negative edge clocks data from the SFP. The serial data signal (SDA) is for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The supported monitoring functions are temperature, voltage, bias current, transmitter power, average receiver signal, all alarms and warnings, and software monitoring of TX Fault/LOS. The device is internally calibrated. Loss of Signal (LOS): The Loss of Signal circuit monitors the level of the incoming optical signal and generates a logic HIGH when an insufficient photocurrent is produced. TX Fault: The output indicates LOW when the transmitter is operating normally, and HIGH with a laser fault including laser end-of-life. TX Fault is an open collector/drain output and should be pulled up with a 4.7 - 10kΩ resistor on the host board. TX Fault is non-latching (automatically deasserts when fault goes away). The data transfer protocol and the details of the mandatory and vendor specific data structures are defined in the SFP MSA and SFF-8472, Rev. 9.4. Power Supply and Grounding: The power supply line should be well-filtered. All 0.1μF power supply bypass capacitors should be as close to the transceiver module as possible. TX Disable: When the TX Disable pin is at logic HIGH, the transmitter optical output is disabled (less than -45dBm). Serial Identification and Monitoring: The module definition of SFP is indicated by the three module definition pins, MOD_ DEF(0), MOD_DEF(1) and MOD_DEF(2). Upon power up, MOD_ Oplink Communications, Inc. 4 RevB.-NP 2009.03.01 TRPAFESM Package Outline 56.7 2.23 REF 0 1.27 -0.13 +.000 .050 -.005 13.67 13.54 .54 .53 0 0.98 -0.13 +.000 .038 -.005 6.25±0.05 .246±.002 1 .04 FRONT EDGE OF TRANSCEIVER CAGE 47.3 1.861 46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: [email protected] • www.oplink.com 8.9 .350 13.9±0.2 .546±.008 1.8 .07 8.51 .335 41.8±0.15 1.646±.006 45±0.20 1.771±.008 Dimensions in inches [mm] Default tolerances: .xxx = ± .005”, .xx = ± .01” Ordering Information Oplink can provide a remarkable range of customized optical solutions. For detail, please contact Oplink’s Sales and Marketing for your requirements and ordering information (510) 933-7200 or [email protected]. Oplink Communications, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Oplink Communications, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Oplink Communications, Inc. for its use nor for any infringements of third parties, which may result from its use. No license is granted by implication or otherwise under any patent right of Oplink Communications, Inc. RevB.-NP 2009.03.01 © 2008, Oplink Communications, Inc. 5