Fast Ethernet SFP Multimode Transceivers TRXNFEMM Product Description The TRXNFEMM series of fiber optic transceivers provide a quick and reliable interface for 100BASE-FX Fast Ethernet multimode applications. 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. 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. The transmitter design incorporates a highly reliable 1310nm LED and a driver circuit. The receiver features a low noise 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 immunity. Features Lead Free Design & Fully RoHS Compliant Compatible with SFP MSA Designed for Fast Ethernet 100BASE-FX Applications 1310nm LED Transmitter Hot-pluggable Excellent EMI & ESD Protection Loss of Signal Output Distances up to 2km TX Disable Input Duplex LC Optical Interface Single +3.3V Power Supply Absolute Maximum Ratings Parameter Storage Temperature Symbol Minimum Maximum Units Tst - 40 + 85 °C -5 + 70 Top -5 + 85 - 40 + 85 “B” option Operating Case Temperature 1 “E” option “A” option °C Supply Voltage Vcc 0 + 5.0 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 RevA-PN.2009.06.25 TRXNFEMM 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 3 Spectral Width (FWHM) 3 Symbol Minimum Typical Maximum Units B - 125 - Mb/s PO - 19.0 - 16.0 - 14.0 dBm λC 1270 - 1380 nm Δλ FWHM - 140 - nm tr, tf 0.6 - 3.0 ns Phi/Plo 10 - - dB Optical Output Power of OFF Transmitter POFF - - - 45.0 dBm Duty Cycle Distortion Jitter (peak-to-peak) DCD - - 1.0 ns Data Dependent Jitter (peak-to-peak) DDJ - - 0.6 ns RJ - - 0.76 ns Optical Rise/Fall Time (10% to 90%) 3 Extinction Ratio Random Jitter (peak-to-peak) 4 Typically compliant with OC-3/STM-1 eye mask (GR-253-CORE and G. 957) without filter, but not guaranteed and not tested for. Transmitter Output Eye 5 Data rate ranges from 50Mb/s to 266Mb/s. However, some degradation may be incurred in overall performance. Measured average power coupled into 62.5/125μm, 0.275 NA graded-index multimode fiber. The minimum power specified is at Beginning-of-Life. 3 The Center Wavelength, Spectral Width and Optical Rise/Fall Time satisfy the trade-off curves in FDDI PMD document as shown in Figure 1. 4 Defined as 12.6 times the rms value per FDDI PMD. 5 Compliance with the Optical Pulse Envelope in FDDI 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 Symbol Minimum Typical Maximum Units B - 125 - Mb/s 2 Pmin - 32.5 - 34.5 - dBm Maximum Input Optical Power (2.5x10-10 BER) 2 Pmax - 14.0 0 - dBm Increasing Light Input Plos+ Plos- + 1.5dB - - 32.5 Decreasing Light Input Plos- - 45.0 - - - 1.5 - - Increasing Light Input t_loss_off - - 100 Decreasing Light Input t_loss_on - - 350 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 λ 1100 - 1600 nm Operating Data Rate 1 Minimum Input Optical Power (2.5x10 BER) -10 LOS Thresholds LOS Hysteresis LOS Timing Delay Contributed Random Jitter (peak-to-peak) Wavelength of Operation 3 dBm dB µs 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 measured with 223-1 PRBS at 125Mb/s and 1310nm wavelength with optical input rise/fall time of 2.5ns and optimum sampling. 3 Defined as 12.6 times the rms value per FDDI 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 RevA-PN.2009.06.25 TRPNFEMM Transmitter Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Input Voltage Swing (TD+ & TD-) 1 VPP-DIF 0.50 Input HIGH Voltage (TX Disable) 2 VIH 2.0 Input LOW Voltage (TX Disable) VIL 0 - 1 2 2 Typical Maximum Units - 2.4 V - VCC V 0.8 V Maximum Units Differential peak-to-peak voltage. There is an internal 4.7 to 10kΩ pull-up resistor to VccT. Receiver Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Symbol Minimum Typical VPP-DIF 0.6 - 2.0 V Output HIGH Voltage (LOS) 2 VOH 2.0 - VCC + 0.3 V Output LOW Voltage (LOS) VOL 0 - 0.5 V Output Voltage Swing (RD+ & RD-) 1 1 2 2 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 (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 - 222 245 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 20 TX GND 1 TX GND 19 TD- (TX DATA IN-) 2 TX Fault 18 TD+ (TX DATA IN+) 3 TX Disable 17 TX GND 4 MOD_DEF(2) 16 VccTX 5 MOD_DEF(1) 15 VccRX 6 MOD_DEF(0) 14 RX GND 7 NO CONNECTION 13 RD+ (RX DATA OUT+) 8 LOS 12 RD- (RX DATA OUT-) 9 RX GND 11 RX GND 10 RX GND Top of Board Host Board Connector Pad Layout 1 2 3 Toward Bezel 4 5 6 7 8 9 Bottom of Board (as viewed thru top of board) 10 20 19 18 17 16 15 Toward ASIC 14 13 12 11 Pin 2 Internally Grounded. Oplink Communications, Inc. 3 RevA-PN.2009.06.25 TRXNFEMM 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 LOS 3 6 MOD_DEF(0) (100Ω to ground internally) 18 13 19 12 MOD_DEF(2) MOD_DEF(1) 50Ω line TX DATA IN+ 50Ω line TX DATA IN- R 8 4 5 15 TRXNFEMM TX Disable R 50Ω line RX DATA OUT+ to 50Ω load 50Ω line RX DATA OUTto 50Ω load 1, 9, 10, 11, 14, 17, 20 R: 4.7 to 10kΩ 200 Figure 1 - Trade-off curves in FDDI PMD document SOURCE FWHM SPECTRAL WIDTH (nm) 3.0 180 1.5 160 140 3.5 2.0 2.5 Source rise & fall time (ns) 3.0 120 3.5 100 1280 1300 1320 1340 1360 1380 SOURCE CENTER WAVELENGTH (nm) Application Notes Electrical Interface: 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. 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 twowire I2C serial interface) and generates the serial clock signal (SCL). The negative edge clocks data from the SFP EEPROM. 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. TX Fault: Per SFP MSA, pin 2 is TX Fault. This transceiver is LED based and does not support TX Fault. Pin 2 is internally connected to transmitter circuit ground (TX GND) to indicate normal operation. The data transfer protocol and the details of the mandatory and vendor specific data structures are defined in the SFP MSA. 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: The module definition of SFP is indicated by Oplink Communications, Inc. 4 RevA-PN.2009.06.25 TRXNFEMM Package Outline 56.6 2.2 REF 13.67 13.54 .54 .53 1.02 .0 6.25±0.05 .246±.002 47.35 1.86 8.51 .335 8.89 .4 46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: [email protected] • www.oplink.com 13.87±0.20 .546±.008 1.78 .1 41.80±0.15 1.646±.006 44.98±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]. Model Name Operation Temperature Nominal Wavelength Latch Color TRXNFEMM4BSS - 5 °C to + 70°C 1310nm Silver TRP3FE0L1E00000G TRXNFEMM4ESS - 5 °C to + 85°C 1310nm Silver TRP3FE0L1I00000G TRXNFEMM4ASS - 40 °C to + 85°C 1310nm Silver Oplink Order Number For Reference (OCP order number) TRP3FE0L1C00000G 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. RevA-PN.2009.06.25 © 2008, Oplink Communications, Inc. 5