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| TRXBG1EXM Multi-rate Single Fiber Bi-Directional Gigabit Ethernet SFP Transceivers with Digital Diagnostics Features Lead Free Design & Fully RoHS Compliant Compatible with SFP MSA Compatible with IEEE 802.3-2005 Gigabit Ethernet 1000BASE-BX PMD Specifications Wavelengths of 1310nm & 1550nm Digital Diagnostics through Serial Interface 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 Pb 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. 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. The transmitter and receiver DATA interfaces are ACcoupled 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 -5C to +70C or -40C to +85C. The package is made of metal. Absolute Maximum Ratings Parameter Storage Temperature Operating Case Temperature1 Supply Voltage Input Voltage Lead Terminal Finish, Reflow Profile Limits and MSL 1 Symbol Tst Commercial Industrial Top VCC Vin - Minimum - 40 -5 - 40 0 0 - Maximum + 85 + 70 + 85 + 4.5 VCC NA Units C C V V - Measured on top side of SFP module at the front center vent hole of the cage. Optical Communication Products, Inc. 1 21737-0941, Rev. D 3-13-2007 TRXBG1EXM Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Operating Data Rate Optical Output Power1 Center Wavelength Spectral Width (-20dB) Extinction Ratio Transmitter OFF Output Power Relative Intensity Noise Optical Return Loss Tolerance Transmitter Reflectance Total Jitter Transmitter Output Eye 1 Symbol B BX-U BX-D BX-U BX-D Po c 20 Phi /Plo RIN12OMA ORLT TR TJ Minimum 125 - 6.5 - 7.0 1260 1540 8 - Typical 1310 1550 - Maximum 1250 0 0 1360 1560 1.0 - 45 - 113 12 - 12 227 Units Mb/s dBm dBm nm nm dB dBm dB/Hz dB dB ps 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 Operating Data Rate Minimum Input Optical Power (10-12 BER)1 Maximum Input Optical Power (10 LOS Thresholds LOS Hysteresis1 Total Jitter Wavelength of Operation Receiver Reflectance Electrical 3dB Upper Cutoff Frequency 1 -12 Symbol B Pmin Pmax Plos+ PlosTJ BX-D BX-U BER )1 Minimum 125 - 23.5 - 3.0 - 35.0 0.5 1260 1480 - Typical - Maximum 1250 - 23.5 266 1360 1560 - 12 1500 Units Mb/s dBm dBm dBm dB ps nm dB MHz Increasing Light Input Decreasing Light Input 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. Optical Communication Products, 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 2 21737-0941, Rev. D 3-13-2007 TRXBG1EXM Transmitter Electrical Interface (over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Input Voltage Swing (TD+ & TD-) Input LOW Voltage (TX Disable) Output HIGH Voltage (TX Fault) 1 3 1 Symbol VPP-DIF VIH VIL VOH VOL Minimum 0.5 2.0 0 2.0 0 Typical - Maximum 2.4 VCC 0.8 VCC + 0.3 0.8 Units V V V V V Input HIGH Voltage (TX Disable)2 2 Output LOW Voltage (TX Fault)3 2 Differential peak-to-peak voltage. There is an internal 4.7 to 10k pull-up resistor to VccT. 3 Open collector compatible, 4.7 to 10k pull-up resistor to Vcc (Host Supply Voltage). Receiver Electrical Interface (over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Output Voltage Swing (RD+ & RD-) Output HIGH Voltage (LOS) 1 2 1 Symbol VPP-DIF VOH VOL Minimum 0.6 2.0 0 Typical - Maximum 2.0 VCC + 0.3 0.5 Units V V V Output LOW Voltage (LOS)2 2 Differential peak-to-peak voltage across external 100 load. Open collector compatible, 4.7 to 10k pull-up resistor to Vcc (Host Supply Voltage). Electrical Power Supply Characteristics (over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Supply Voltage Supply Current Symbol Vcc Icc Minimum 3.13 Typical 3.3 175 Maximum 3.47 300 Units V mA Module Definition MOD_DEF(0) pin 6 TTL LOW MOD_DEF(1) pin 5 SCL MOD_DEF(2) pin 4 SDA Interpretation by Host Serial module definition protocol Electrical Pad Layout 20 19 18 17 16 15 14 13 12 11 TX GND TD- (TX DATA IN-) TD+ (TX DATA IN+) TX GND VccTX VccRX RX GND RD+ (RX DATA OUT+) RD- (RX DATA OUT-) RX GND TX GND TX Fault TX Disable MOD_DEF(2) MOD_DEF(1) Host Board Connector Pad Layout 1 2 3 4 5 6 7 8 9 10 20 1 2 3 4 19 18 17 16 Toward 15 14 13 12 11 Toward MOD_DEF(0) NO CONNECTION LOS RX GND RX GND Bezel 5 6 7 8 9 10 ASIC Top of Board Bottom of Board (as viewed thru top of board) 3 21737-0941, Rev. D 3-13-2007 TRXBG1EXM Example of SFP host board schematic Vcc 3.3V 1H coil or ferrite bead (<0.2 series resistance) Vcc 3.3V + 10 0.1 16 0.1 RRR 2 8 4 5 6 50 line 50 line R TX Fault LOS MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) (100 to ground internally) RX DATA OUT+ to 50 load RX DATA OUTto 50 load + 15 10 0.1 TRXBG1EXM TX Disable 50 line TX DATA IN+ 50 line TX DATA IN19 18 3 100 13 12 1, 9,10,11,14,17,20 R: 4.7 to 10k 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 - 10k resistor on the host board. 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 - 10k resistor on the host board. TX Fault is non-latching (automatically deasserts when fault goes away). 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_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. 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. 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 0.1F power supply bypass capacitors should be as close to the transceiver module as possible. 4 21737-0941, Rev. D 3-13-2007 TRXBG1EXM Package Outline 8.9 .35 56.4 2.22 REF 13.4 0.1 .528 .004 9.9 .390 47.5 1.870 6.4 .250 8.5 0.1 .336 .004 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 Model Name TRXBG1EXNBBMH TRXBG1EXNBYM5 TRXBG1EXNABMH TRXBG1EXNAYM5 Temperature Range - 5C to +70C - 5C to +70C - 40C to +85C - 40C to +85C Latch Color Blue Yellow Blue Yellow Typical Wavelength Tx 1310nm 1550nm 1310nm 1550nm Rx 1550nm 1310nm 1550nm 1310nm Distance 40km 40km 40km 40km Optical Communication Products, Inc. 6101 Variel Avenue, Woodland Hills, CA 91367, Tel.: 818-251-7100, FAX: 818-251-7111, www.ocp-inc.com Optical Communication Products, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Optical Communication Products, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Optical Communication Products, 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 Optical Communication Products, Inc. (c)2006, Optical Communication Products, Inc. 5 21737-0941, Rev. D 3-13-2007 |
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