TRXNFEMM Fast Ethernet SFP Multimode Transceivers Pb 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 Description The TRXNFEMM series of fiber optic transceivers provide a quick and reliable interface for 100BASE-FX Fast Ethernet multimode applications. 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 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 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. 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. Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units Tst - 40 + 85 °C -5 + 70 Storage Temperature "B" option Operating Case Temperature1 "E" option Top "A" option -5 + 85 - 40 + 85 °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. 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 Symbol Minimum Typical Maximum Units 1 Parameter B - 125 - Mb/s 2 Po - 19.0 - 16.0 - 14.0 dBm λc 1270 - 1380 nm ∆λFWHM - 140 - nm t r, t f 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 Operating Data Rate Optical Output Power 3 Center Wavelength 3 Spectral Width (FWHM) 3 Optical Rise/Fall Time (10% to 90%) Extinction Ratio 4 Random Jitter (peak-to-peak) 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 Eye5 1 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. 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 1 Operating Data Rate B - 125 - Mb/s 2 Pmin - 32.5 - 34.5 - dBm 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 Contributed Random Jitter (peak-to-peak) RJ - - 2.14 ns Wavelength of Operation λ 1100 - 1600 nm -10 Minimum Input Optical Power (2.5 x 10 Maximum Input Optical Power (2.5 x 10 LOS Thresholds BER) -10 BER) LOS Hysteresis LOS Timing Delay 3 dBm dB µs 1 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 1 Symbol Minimum Typical Maximum Units Input Voltage Swing (TD+ & TD-) VPP-DIF 0.50 - 2.4 V Input HIGH Voltage (TX Disable)2 VIH 2.0 - VCC V 2 VIL 0 - 0.8 V Maximum Units Input LOW Voltage (TX Disable) 1 Differential peak-to-peak voltage. 2 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 1 Symbol Minimum Typical VPP-DIF 0.6 - 2.0 V Output HIGH Voltage (LOS)2 VOH 2.0 - VCC + 0.3 V 2 VOL 0 - 0.5 V Output Voltage Swing (RD+ & RD-) Output LOW Voltage (LOS) 1 Differential peak-to-peak voltage across external 100Ω load. 2 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 Host Board Connector Pad Layout 20 TX GND 1 TX GND 19 TD- (TX DATA IN-) 2 TX Fault 1 18 TD+ (TX DATA IN+) 3 TX Disable 2 17 TX GND 4 MOD_DEF(2) 16 VccTX 5 MOD_DEF(1) 15 VccRX 6 MOD_DEF(0) 14 13 RX GND RD+ (RX DATA OUT+) 20 7 NO CONNECTION 8 LOS 3 4 Toward Bezel 5 6 7 12 11 RD- (RX DATA OUT-) RX GND 9 10 RX GND 8 RX GND 9 Top of Board Bottom of Board (as viewed thru top of board) 19 18 17 16 15 Toward ASIC 14 13 12 11 10 Pin 2 Internally Grounded. 3 21737-0931, Rev. A 04-05-2006 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 0.1 + R 16 15 10 0.1 TRXNFEMM 3 TX Disable 100 50Ω line TX DATA IN+ R 8 4 5 MOD_DEF(2) MOD_DEF(1) 6 MOD_DEF(0) (100Ω to ground internally) 18 13 19 12 LOS 50Ω line 50Ω line TX DATA IN- R 50Ω line RX DATA OUT+ to 50Ω load RX DATA OUTto 50Ω load 1, 9,10,11,14,17,20 Ω R: 4.7 to 10kΩ SOURCE FWHM SPECTRAL WIDTH (nm) 200 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 - 10kΩ resistor on the host board. 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), 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 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. 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 0.1µF power supply bypass capacitors should be as close to the transceiver module as possible. The serial data signal (SDA) is for serial data transfer. The host uses SDA in conjunction with SCL to mark the start 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 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 Operating Case Temperature Latch Color Nominal Wavelength TRXNFEMM4BSS - 5°C to +70°C Silver 1310nm TRXNFEMM4ESS - 5°C to +85°C Silver 1310nm TRXNFEMM4ASS - 40°C to +85°C Silver 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. © 2006, Optical Communication Products, Inc. 5 21737-0931, Rev. A 04-05-2006