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| TRXNFEMM Fast Ethernet SFP Multimode Transceivers 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 Pb 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 -5C to +70C ("B" option), -5C to +85C ("E" option) or -40C to +85C ("A" option). The housing is made of plastic and metal for EMI immunity. Absolute Maximum Ratings Parameter Storage Temperature "B" option Operating Case Temperature1 Supply Voltage Input Voltage Lead Terminal Finish, Reflow Profile Limits and MSL 1 Symbol Tst "E" option "A" option VCC Vin Top Minimum - 40 -5 -5 - 40 0 0 - Maximum + 85 + 70 + 85 + 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. Optical Communication Products, Inc. 1 21737-0931, Rev. A 04-05-2006 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 3 3 3 1 2 Symbol B Po c FWHM t r, t f Phi /Plo POFF DCD DDJ RJ Minimum - 19.0 1270 0.6 10 - Typical 125 - 16.0 140 - Maximum - 14.0 1380 3.0 - 45.0 1.0 0.6 0.76 Units Mb/s dBm nm nm ns dB dBm ns ns ns Optical Output Power Center Wavelength Spectral Width (FWHM) Optical Rise/Fall Time (10% to 90%) Extinction Ratio Optical Output Power of OFF Transmitter Duty Cycle Distortion Jitter (peak-to-peak) Data Dependent Jitter (peak-to-peak) Random Jitter (peak-to-peak) Transmitter Output Eye5 1 2 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. Data rate ranges from 50Mb/s to 266Mb/s. However, some degradation may be incurred in overall performance. Measured average power coupled into 62.5/125m, 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. Receiver 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 -10 -10 2 2 Symbol B BER) Pmin Pmax Plos+ Plost_loss_off t_loss_on DCD DDJ RJ Minimum - 32.5 - 14.0 Plos- + 1.5dB - 45.0 1.5 1100 Typical 125 - 34.5 0 - Maximum - 32.5 100 350 0.4 1.0 2.14 1600 Units Mb/s dBm dBm dBm dB s ns ns ns nm Minimum Input Optical Power (2.5 x 10 Maximum Input Optical Power (2.5 x 10 LOS Thresholds LOS Hysteresis LOS Timing Delay BER) Increasing Light Input Decreasing Light Input Increasing Light Input Decreasing Light Input Contributed Duty Cycle Distortion Jitter (peak-to-peak) Contributed Data Dependent Jitter (peak-to-peak) Contributed Random Jitter (peak-to-peak) Wavelength of Operation 1 3 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. 2 21737-0931, Rev. A 04-05-2006 TRXNFEMM Transmitter Electrical Interface (over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Input Voltage Swing (TD+ & TD-) Input LOW Voltage (TX Disable) 1 1 Symbol VPP-DIF VIH VIL Minimum 0.50 2.0 0 Typical - Maximum 2.4 VCC 0.8 Units V V V Input HIGH Voltage (TX Disable)2 2 Differential peak-to-peak voltage. 2 There is an internal 4.7 to 10k pull-up resistor to VccT. Receiver Electrical Interface (over Operating Case Temperature, VCC = 3.13 to 3.47V) Parameter Output Voltage Swing (RD+ & RD-) Output HIGH Voltage (LOS)2 Output LOW 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 Differential peak-to-peak voltage across external 100 load. 2 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 3.3 222 Maximum 3.47 245 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 Host Board Connector 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 1 2 3 4 5 6 7 8 9 10 TX GND 20 TX Fault TX Disable MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) NO CONNECTION LOS 1 2 3 4 19 18 17 16 15 14 13 12 11 Toward Bezel 5 6 7 Toward ASIC RX GND RX GND 8 9 Top of Board Bottom of Board (as viewed thru top of board) 10 Pin 2 Internally Grounded. 3 21737-0931, Rev. A 04-05-2006 TRXNFEMM Example of SFP host board schematic Vcc 3.3V Vcc 3.3V + 1H coil or ferrite bead (<0.2 series resistance) 10 0.1 0.1 16 8 4 5 6 R R R 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 TRXNFEMM TX Disable 50 line TX DATA IN+ TX DATA IN50 line 19 18 3 100 50 line 50 line 13 12 1, 9,10,11,14,17,20 R: 4.7 to 10k 200 SOURCE FWHM SPECTRAL WIDTH (nm) 3.0 180 1.5 3.5 160 2.0 140 2.5 Source rise & fall time (ns) 3.0 120 3.5 100 1280 1300 1320 1340 1360 1380 SOURCE CENTER WAVELENGTH (nm) Figure 1 - Trade-off curves in FDDI PMD document 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. 4 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. 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 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), 21737-0931, Rev. A 04-05-2006 TRXNFEMM Application Notes (Cont.) 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 negative edge clocks data from the SFP EEPROM. 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 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 0.1F power supply bypass capacitors should be as close to the transceiver module as possible. Package Outline 56.6 2.2 REF 13.67 13.54 .54 .53 1.02 .0 6.25 0.05 .246 .002 8.89 .4 47.35 1.86 8.51 .335 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 Model Name TRXNFEMM4BSS TRXNFEMM4ESS TRXNFEMM4ASS Operating Case Temperature - 5C to +70C - 5C to +85C - 40C to +85C Latch Color Silver Silver Silver Nominal Wavelength 1310nm 1310nm 1310nm 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 21737-0931, Rev. A 04-05-2006 |
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