Multi-rate Single Fiber Bi-Directional Gigabit Ethernet SFP Transceivers with Digital Diagnostics TRXBG1EXM Product Description The TRXBG1EXM modules are single fiber, bi-directional SFP transceivers that provide a quick and reliable interface for 1000BASE-BX Gigabit Ethernet applications. Two types of modules are available: 1310nm DFB laser-based transceiver (BX-U), and 1550nm DFB laser-based transceivers (BX-D). These transceivers are designed to support data rates ranging from 1250Mb/s down to 125Mb/s and are integrated with digital diagnostics monitoring, which provides features to detect a problem before system performance is impacted. The diagnostic functions, alarms and warning features are provided via an I2C serial interface as described per the Multi-Source Agreement (MSA) document, SFF-8472 (Rev. 9.4). All modules meet Class I Laser Safety requirements in accordance with the U.S. and international standards as described in the FDA/CDRH and IEC-60825 documents, respectively. The TRXBG1EXM transceivers connect to standard 20-pad SFP connectors for hot plug capability. This allows the system designer to make configuration or maintenance changes by simply plugging in different types of transceivers without removing the power supply from the host system. Features Lead Free Design & Fully RoHS Compliant Compatible with SFP MSA The transceivers have color-coded latches that identify the TX wavelength. The MSA compatible latch offers an easy and convenient way to release the module. Compatible with IEEE 802.3-2005 Gigabit Ethernet 1000BASE-BX PMD Specifications The transmitter and receiver DATA interfaces are ACcoupled internally. LV-TTL Transmitter Disable control input and Loss of Signal output interfaces are also provided. Digital Diagnostics through Serial Interface The transceivers operate from a single +3.3V power supply over an operating case temperature range of -5°C to +70°C or -40°C to +85°C. The package is made of metal. Wavelengths of 1310nm & 1550nm Internal Calibration for Digital Diagnostics Distances up to 40km Eye Safe (Class I Laser Safety) Duplex LC Optical Interface Hot-pluggable TX Fault & Loss of Signal Outputs TX Disable Input Single +3.3V Power Supply Absolute Maximum Ratings Parameter Storage Temperature Operating Case Temperature 1 Commercial Industrial 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 - - NA - Lead Terminal Finish, Reflow Profile Limits and MSL 1 Measured on top side of SFP module at the front center vent hole of the cage. An Oplink Company RevD-PN.2009.06.25 TRXBG1EXM Transmitter Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Maximum Units B 125 - 1250 Mb/s - 6.5 - 0 dBm - 7.0 - 0 dBm 1260 1310 1360 1540 1550 1560 Operating Data Rate BX-U Optical Output Power 1 BX-D BX-U Center Wavelength BX-D PO λC nm Spectral Width (-20dB) Δλ20 - - 1.0 nm Extinction Ratio Phi/Plo 8 - - dB - - - - 45 dBm RIN12OMA - - - 113 dB/Hz ORLT - - 12 dB Transmitter Reflectance TR - - - 12 dB Total Jitter TJ - - 227 ps Transmitter OFF Output Power Relative Intensity Noise Optical Return Loss Tolerance Transmitter Output Eye 1 Compliant with Eye Mask Defined in IEEE 802.3-2005 Standard Measured average power coupled into single mode fiber. Receiver Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Maximum Units B 125 - 1250 Mb/s 1 Pmin - 23.5 - - dBm Maximum Input Optical Power (10-12 BER) 1 Pmax - 3.0 - - dBm Increasing Light Input Plos+ - - - 23.5 Decreasing Light Input Plos- - 35.0 - - - 0.5 - - dB TJ - - 266 ps Operating Data Rate Minimum Input Optical Power (10 BER) -12 LOS Thresholds LOS Hysteresis 1 Total Jitter Wavelength of Operation BX-D BX-U λ 1260 - 1360 1480 - 1560 dBm nm Receiver Reflectance - - - - 12 dB Electrical 3dB Upper Cutoff Frequency - - - 1500 MHz 1 Measured at 1250Mb/s with 27-1 PRBS and 1310nm, 1490nm , and 1550nm wavelengths. 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: MANUFACTURED IN THE USA This product complies with 21 CFR 1040.10 and 1040.11 Meets Class I Laser Safety Requirements Oplink Communications, Inc. 2 RevD-PN.2009.06.25 TRXBG1EXM Transmitter Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical Input Voltage Swing (TD+ & TD-) 1 VPP-DIF 0.5 Input HIGH Voltage (TX Disable) 2 VIH 2.0 Input LOW Voltage (TX Disable) 2 VIL 0 Output HIGH Voltage (TX Fault) 3 VOH VOL Output LOW Voltage (TX Fault) 3 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 Output Voltage Swing (RD+ & RD-) Output HIGH Voltage (LOS) Output LOW Voltage (LOS) Symbol Minimum Typical Maximum Units VPP-DIF 0.6 - 2.0 V VOH 2.0 - VCC + 0.3 V VOL 0 - 0.5 V 1 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 - 175 300 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 RevD-PN.2009.06.25 TRXBG1EXM Example of SFP host board schematic Vcc 3.3V 1µH coil or ferrite bead (<0.2Ω series resistance) Vcc 3.3V + 10 0.1 + + 10 10 0.1 0.1 R 16 15 TRXBG1EXM 3 TX Disable 100 50Ω line TX DATA IN+ TX DATA IN- 50Ω line R 2 MOD_DEF(2) MOD_DEF(1) 6 50Ω line 13 19 12 R TX Fault LOS 8 4 5 18 R 50Ω line MOD_DEF(0) (100Ω to ground internally) RX DATA OUT+ to 50Ω load RX DATA OUTto 50Ω load 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 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. This device does not require clock stretching. 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. 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. 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. TX Disable: When the TX Disable pin is at logic HIGH, the transmitter optical output is disabled (less than -45dBm). 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. 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 RevD-PN.2009.06.25 TRXBG1EXM Package Outline 8.9 .35 56.4 2.22 REF 13.4±0.1 .528±.004 47.5 1.870 9.9 .390 8.5±0.1 .336±.004 46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: [email protected] • www.oplink.com 6.4 .250 3.12 .123 5.3 .210 13.6 .534 45±0.20 1.772±.008 41.8±0.15 1.646±.006 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]. Model Name Latch Color Typical Wavelength Oplink Order Number Reference OCP P/N Temperature Range TRB1G1EB3C00001G TRXBG1EXNBBMH - 5 °C to + 70°C Blue TRB1G1CB4C00000G TRXBG1EXNBYM5 - 5 °C to + 70°C Yellow 1550nm 1310nm 40km TRB1G1EB3I00001G TRXBG1EXNABMH - 40 °C to + 85°C Blue 1310nm 1550nm 40km TRB1G1CB4I00000G TRXBG1EXNAYM5 - 40 °C to + 85°C Yellow 1550nm 1310nm 40km Tx Rx 1310nm 1550nm Distance 40km 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. RevD-PN.2009.06.25 © 2008, Oplink Communications, Inc. 5