TRXA12MM

Multi-rate OC-12/STM-4 SFP Multimode Transceivers with Digital Diagnostics TRXA12MM Multi-Rate Product Description The TRXA12MM Multi-rate SFP fiber optic transceivers with integrated digital diagnostics monitoring functionality provide a quick and reliable interface for Fast Ethernet, OC-3/STM-1 and OC-12/STM-4 multimode applications. The diagnostic monitoring functions, alarm and warning features are provided via an I2C serial interface. The transceivers are designed to be compatible with the ATM requirements at OC-3/STM-1 (156Mb/s) and OC-12/STM-4 (622Mb/s) data rate, and is suitable for Fast Ethernet applications. The TRXA12MM 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 removing the power supply from the host system. The transmitter design incorporates a highly reliable 1310nm LED and an integrated 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 three operating case temperature ranges of -5°C to +70°C (“B” option), -5°C to +85°C (“E” option), or -40°C to +85°C (“A” option). The housing is made of plastic and metal for EMI enhancement. Features  Lead Free Design & Fully RoHS Compliant  Compatible with Fast Ethernet (125Mb/s) and ATM/ SONET Specifications for OC-3/STM-1 (156Mb/s) & OC-12/STM-4 (622Mb/s)  Compatible with SFP MSA  Digital Diagnostics Monitoring through Serial Interface  Distances up to 500m  Hot-pluggable  Three Operating Case Temperature Options  Loss of Signal Output  TX Disable Input  Duplex LC Optical Interface  Single +3.3V Power Supply Absolute Maximum Ratings Parameter Storage Temperature "B" option Operating Case Temperature Supply Voltage Input Voltage Lead Terminal Finish, Reflow Profile Limits and MSL 1 Symbol TST Minimum - 40 -5 -5 -40 0 0 - Maximum + 85 +70 +85 +85 +5.0 VCC NA Units °C °C V V - 1 "E" option “A” option TOP VCC VIN - Measured on top side of SFP module at the front center vent hole of the cage. An Oplink Company Rev1.2008.07.10 TRXA12MM Multi-rate Transmitter Performance Characteristics All parameters guaranteed only at typical data rate Parameter Operating Data Rate Optical Output Power Center Wavelength Spectral Width (RMS) Optical Rise and Fall Time (10% to 90%) Extinction Ratio Transmitter OFF Power Systematic Jitter (DCD & DDJ, peak-to-peak) Random Jitter (peak-to-peak) 1 1 (Over Operating Case Temperature. VCC = 3.13 to 3.47V) Symbol B PO λC ΔλRMS tr, tf Phi /Plo POFF SJ RJ Minimum 125 - 20.0 1270 10 - Typical 140 1.0 - Maximum 622 - 14.0 1380 200 1.25 -45.0 0.4 0.15 Units Mb/s dBm nm nm ns dB dBm rs rs Measured average power coupled into 62.5/125μm, 0.275 NA graded-index multimode fiber. The minimum power specified is at Beginning-of-Life. Receiver Performance Characteristics All parameters guaranteed only at typical data rate Parameter Operating Data Rate Receiver Sensitivity (10 -10 BER) 1 Maximum Input Optical Power (10 LOS Thresholds LOS Hysteresis LOS Timing Delay Wavelength of Operation 1 (Over Operating Case Temperature. VCC = 3.13 to 3.47V) Symbol B Pmin -10 Minimum 125 -26.0 -14.0 -40.0 0.5 1100 Typical -28.0 -6.0 1.0 - Maximum 622 -26.0 100 350 1600 Units Mb/s dBm dBm dBm dB μs nm BER) 1 Pmax Plos+ Plost_loss_off t_loss_on λ 23 Increasing Light Input Decreasing Light Input Increasing Light Input Decreasing Light Input Measured with 2 -1 PRBS at 125Mb/s for Fast Ethernet, and with 2 -1 PRBS at 156Mb/s & 622Mb/s for OC-3 & OC-12. 7 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 Rev1.2008.07.10 TRXA12MM Multi-rate Transmitter Performance Characteristics Parameter Input Voltage Swing (TD+ & TD-) 1 Input HIGH Voltage (TX Disable) 2 Input LOW Voltage (TX Disable) 1 2 (Over Operating Case Temperature. VCC = 3.13 to 3.47V) Minimum 0.25 2.0 0 Typical Maximum 2.4 VCC 0.8 Units V V V Symbol VPP-DIF VIH VIL 2 Differential peak-to-peak voltage. There is an internal 4.7 to 10kΩ pull-up resistor to VccT. Receiver Electrical Interface Parameter Output Voltage Swing (RD+ & RD-) 1 Output HIGH Voltage (LOS) 2 Output LOW Voltage (LOS)) 2 1 2 (Over Operating Case Temperature. VCC = 3.13 to 3.47V)) Symbol VPP-DIF VOH VOL Minimum 0.6 2.0 0 Typical Maximum 2.0 VCC + 0.3 0.5 Units V V V Differential peak-to-peak voltage across external 100Ω load. Open collector compatible, 4.7 to 10kΩ 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 3.47 285 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 Pin 2 Internally Grounded Bottom of Board (as viewed thru top of board) Oplink Communications, Inc. 3 Rev1.2008.07.10 TRXA12MM Multi-rate Example of SFP host board schematic Vcc 3.3V 1μH coil or ferrite bead (