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| Multi-rate OC-12/STM-4 SFP Transceivers with Digital Diagnostics TRXA12M SM Product Description The TRXA12M SFP series of multi-rate fiber optic transceivers with integrated digital diagnostics monitoring functionality provide a quick and reliable interface for OC-12 short reach (SR), intermediate reach (IR) and long reach (LR) 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. Available products under this series are compliant with SONET/SDH standards for OC-12/STM-4 applications and are capable of operating down to 155Mb/s data rate. The SR-1 and IR-1 versions are compliant with OC-12/ STM-4 and OC-3/STM-1 interface standards. All modules satisfy 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 TRXA12M multi-rate 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 shutting down the power supply of the host system. The transceivers have colored bail-type latches, which offer an easy and convenient way to release the modules. The latch is compliant with the SFP MSA The transmitter design incorporates a highly reliable 1310nm or 1550nm InGaAsP laser and a driver circuit. The receiver features a transimpedance amplifier IC optimized for high sensitivity and wide dynamic range. The transmitter and receiver DATA interfaces are AC-coupled internally. LVTTL 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 housing is made of plastic and metal for EMI immunity. Features Lead Free Design & Fully RoHS Compliant Compliant with SONET/SDH OC-12/STM-4 (622Mb/s) Compliant with SONET/SDH OC-3/STM-1 (155Mb/s) Compatible with SFP MSA SONET/SDH Reaches (SR-1, IR-1, LR-1 & LR-2) Digital Diagnostics through Serial Interface Internal Calibration for Digital Diagnostics Eye Safe (Class I Laser Safety) Duplex LC Optical Interface Excellent EMI & ESD Protection Hot-pluggable TX Fault & Loss of Signal Outputs TX Disable Input Single +3.3V Power Supply Absolute Maximum Ratings Parameter Storage Temperature Operating Case Temperature1 Supply Voltage Input Voltage Lead Terminal Finish, Reflow Profile Limits and MSL 1 Symbol TST "B" Option "A" Option TOP VCC VIN - Minimum - 40 -5 - 40 0 0 - Maximum + 85 + 70 + 85 +5.0 VCC NA Units C C V V - Measured on top side of SFP module at the front center vent hole of the cage. An Oplink Company RevB-NP.2008.09.09 TRXA12M Single Mode Transmitter Performance Characteristics All parameters guaranteed only at typical data rate Parameter Operating Data Rate Average Optical Output Power (coupled into single mode fiber), 50% duty cycle Transmitter OFF Output Power Extinction Ratio SR-1 & IR-1 LR-1 & LR-2 SR-1 Center Wavelength 1 IR-1 LR-1 LR-2 Spectral Width (RMS) 1 Spectral Width (-20dB) Side Mode Suppression Ratio Optical Output Eye 1 (Over Operating Case Temperature. VCC = 3.13 to 3.47V) Symbol B SR-1 & IR-1 LR-1 & LR-2 PO POFF Phi /Plo Minimum 125 - 15.0 - 3.0 8.2 10 1261 1274 Typical - 11.0 - 1.0 1310 1310 1310 1310 1550 - Maximum 622 - 8.0 + 2.0 - 45.0 1360 1356 1334 1335 1580 4.0 2.5 or 4.0 1.0 - Units Mb/s dBm dBm dB C 1293 1280 1480 30 nm SR-1 IR-1 LR-1 & LR-2 LR-1 & LR-2 RMS 20 SMSR nm nm dB Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957 For IR version, the center wavelength is either 1274nm c 1356nm for RMS 2.5nm or 1293nm c 1334nm for RMS 4.0nm. Receiver Performance Characteristics All parameters guaranteed only at typical data rate Parameter Operating Data Rate Receiver Sensitivity (10 BER) -10 1 -10 1 (Over Operating Case Temperature. VCC = 3.13 to 3.47V) Symbol B Pmin Pmin Plos+ Plost_loss_off t_loss_on - Minimum 125 - 28.0 - 7.0 - 45.0 2.3 0.5 1100 - Typical - 31.0 - 3.0 1.5 - Maximum 622 - 28.0 100 100 1600 - 27.0 23 Units Mb/s dBm dBm dBm s dB nm dB Maximum Input Optical Power (10 BER) LOS Thresholds 1 LOS Timing Delay LOS Hysteresis Wavelength of Operation Receiver Reflectance (LR-2 only) 1 Increasing Light Input Decreasing Light Input Increasing Light Input Decreasing Light Input Specified in average optical input power and measured at 155Mb/s & 622Mb/s and at 1310nm (1550nm for LR-2) wavelength with 2 -1 PRBS, 125Mb/s with 27-1 PRBS. Laser Safety 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.2008.09.09 TRXA12M Single Mode Transmitter Electrical Interface (Over Operating Case Temperature. VCC = 3.13 to 3.47V) Parameter Input Voltage Swing (TD+ & TD-) 1 Input HIGH Voltage (TX Disable) Input LOW Voltage (TX Disable) Output LOW Voltage (TX Fault) 1 2 3 Symbol VPP-DIF VIH VIL VOH VOL Minimum 0.25 2.0 0 2.0 0 Typical - Maximum 2.4 VCC 0.8 VCC + 0.3 0.8 Units V V V V V 2 2 Output HIGH Voltage (TX Fault) 3 3 Differential peak-to-peak voltage. There is an internal 4.7 to 10k pull-up resistor to VccT. Open collector compatible, 4.7 to 10k pull-up resistor to Vcc (Host Supply Voltage). Receiver Electrical Interface Parameter Output Voltage Swing (RD+ & RD-) Output HIGH Voltage (LOS) Output LOW Voltage (LOS)) 1 2 (Over Operating Case Temperature. VCC = 3.13 to 3.47V)) Symbol Minimum 0.6 2.0 0 Typical Maximum 2.0 VCC + 0.3 0.5 Units V V V 1 VPP-DIF VOH VOL 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 Parameter Supply Voltage Supply Current VCC ICC (Over Operating Case Temperature. VCC = 3.13 to 3.47V)) Minimum 3.13 Typical 3.3 210 Maximum 3.47 275 Units V mA Symbol 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 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 Host Board Connector Pad Layout 20 19 18 17 16 15 14 13 12 11 Toward ASIC 1 2 3 4 5 6 7 8 9 10 TX GND TX Fault TX Disable MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) NO CONNECTION LOS RX GND RX GND 1 2 3 Toward Bezel 4 5 6 7 8 9 10 Top of Board Bottom of Board (as viewed thru top of board) Oplink Communications, Inc. 3 RevB-NP.2008.09.09 TRXA12M Single Mode Example of SFP host board schematic Vcc 3.3V 1H coil or ferrite bead (<0.2 series resistance) Vcc 3.3V + 10 0.1 0.1 16 15 RR 2 8 4 5 6 R R TX Fault LOS MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) (100 to ground internally) + 10 0.1 TRXA12M 3 18 19 100 TX Disable TX DATA IN+ TX DATA IN- 13 12 RX DATA OUT+ to 50 load RX DATA OUTto 50 load 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 with 0.1F 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 in 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. 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 internal temperature, supply 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 SFPMSA, 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. Oplink Communications, Inc. 4 RevB-NP.2008.09.09 TRXA12M Single Mode Package Outline 46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: Sales@Oplink.com * www.oplink.com 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 Sales@oplink.com. 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.2008.09.09 (c) 2006, Oplink Communications, Inc. 5 |
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