Jan. 23, 2007
1G~2.5Gbps Spring-latch SFP Transceiver
(With monitoring function, for 2km transmission, RoHS compliant)
Members of FlexonTM Family
1040.11, Class I RoHS compliant
Description
Fiberxon 1G~2.5Gbps spring-latch SFP transceiver is high performance, cost effective module that supports data-rate up to 2.5Gbps and transmission distance of 2km.
Features
Support 1G~2.5Gbps multi-rate data links 1310nm FP laser and PIN photodiode for 2km transmission Digital diagnostic monitor interface compliant with SFF-8472 SFP MSA package with duplex LC connector With Spring latch for high density application Class I laser product Hot-pluggable capability Operating case temperature: Commercial: 0 to +70℃ Industrial : -40 to +85℃
The transceiver consists of two sections: The transmitter section incorporates a FP laser, and the receiver section consists of a PIN photodiode integrated with a trans-impedance preamplifier (TIA). All modules satisfy class I laser safety requirements. The optical output can be disabled by a TTL logic high-level input of Tx Disable. Tx Fault is provided to indicate degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver. The transceiver provides an enhanced monitoring interface, which allows real time access to the transceiver operating temperature, parameters laser bias such as transceiver current,
Applications
1×/2× Fiber Channel Gigabit Ethernet CPRI optical link Other optical links
transmitted optical power, received optical power and transceiver supply voltage by reading a built-in memory with I2C interface. For further information, please refer to SFF-8472 Rev 9.5. Fiberxon 1G ~ 2.5Gbps SFP transceiver is
Standard
Compatible with SFP MSA Compatible with SFF-8472 Rev 9.5 Compatible with FCC 47 CFR Part 15, Class B Compatible with FDA 21 CFR 1040.10 and
compliant with RoHS.
Fiberxon Proprietary and Confidential, Do Not Copy or Distribute Controlled Electronic Version. 24hrs Obsolete when printed out without authorization.
Page 1 of 10 Last printed 1/24/2007 1:56:00 PM
1G~2.5Gbps Sping-latch SFP Transceiver 2km transmission, RoHS compliant Preliminary Datasheet Jan. 23, 2007
Regulatory Compliance
The transceivers have been tested according to American and European product safety and electromagnetic compatibility regulations (See Table 1). For further information regarding regulatory certification, please refer to FlexonTM regulatory specification and safety guidelines, or contact Fiberxon, Inc. America sales office listed at the end of the documentation. Table 1 - Regulatory Compliance Feature Electrostatic Discharge (ESD) to the Electrical Pins Electrostatic Discharge (ESD) to the Duplex LC Receptacle Electromagnetic Interference (EMI) Immunity Laser Eye Safety Component Recognition RoHS Standard MIL-STD-883E Method 3015.7 IEC 61000-4-2 GR-1089-CORE FCC Part 15 Class B EN55022 Class B (CISPR 22B) VCCI Class B IEC 61000-4-3 FDA 21CFR 1040.10 and 1040.11 EN60950, EN (IEC) 60825-1,2 UL and CSA 2002/95/EC 4.1&4.2 2005/747/EC Compatible with standards Compatible with Class 1 laser product. Compatible with standards Compliant with standards Compatible with standards Performance Class 2(>2000 V) Compatible with standards
Absolute Maximum Ratings
Absolute Maximum Ratings are those values beyond which damage to the devices may occur. Table 2 – Absolute Maximum Ratings Parameter Storage Temperature Supply Voltage Operating Humidity Input Optical Power Symbol TS VCC Pmax Min. -40 -0.5 5 Max. +85 3.6 95 +3 Unit °C V % dBm
Recommended Operating Conditions
Table 3 - Recommended Operating Conditions Parameter Operating Temperature Case Commercial Industrial Symbol Tc VCC ICC 1 Min. 0 -40 3.13 Typical Max. +70 +85 3.47 300 2.5 Unit °C V mA Gbps
Power Supply Voltage Power Supply Current Data Rate
Fiberxon Proprietary and Confidential, Do Not Copy or Distribute Controlled Electronic Version. 24hrs Obsolete when printed out without authorization.
Page 2 of 10 Last printed 1/24/2007 1:56:00 PM
1G~2.5Gbps Sping-latch SFP Transceiver 2km transmission, RoHS compliant Preliminary Datasheet Jan. 23, 2007
Optical and Electrical Characteristics
Table 4 –Optical and Electrical Characteristics Parameter Centre Wavelength Spectral Width (RMS) Average Output Power P0ut@TX Disable Asserted Extinction Ratio Total Jitter Deterministic Jitter Data Input Swing Differential Input Differential Impedance TX Disable TX Fault Disable Enable Fault Normal λC Symbol λC σ P0ut P0ut EX TJ DJ VIN ZIN 400 90 2.0 0 2.0 0 Receiver Centre Wavelength Receiver Sensitivity Receiver Overload Return Loss LOS De-Assert LOS Assert LOS Hysteresis Total Jitter (pk-pk) Deterministic Jitter (pk-pk) Data Output Swing Differential LOS Notes: 1. 2. 3. 4. 5. The optical power is launched into SMF. Unfiltered, measured with a PRBS 27-1 test pattern @2.5Gbps Measured with a PRBS 27-1 test pattern @2.5Gbps, meet the specified maximum output jitter requirements if the specified maximum input jitter is present. Internally AC coupled. Measured with a PRBS 27-1 test pattern @2.5Gbps, BER ≤1×10-12. High Low TJ DJ VOUT 350 2.0 0 LOSD LOSA -31 0.5 4 0.64 0.39 2000 Vcc 0.5 -3 12 -19 1260 1310 1580 -18 nm dBm dBm dB dBm dBm dB UI UI mV V V 3 3 4 5 5 100 9 0.44 0.26 2400 110 Vcc 0.8 Vcc 0.5 -9.5 Min. Transmitter 1270 1360 4 -3 -40 nm nm dBm dBm dB UI UI mV Ω V V V V 3 3 4 1 2 Typical Max. Unit Notes
Fiberxon Proprietary and Confidential, Do Not Copy or Distribute Controlled Electronic Version. 24hrs Obsolete when printed out without authorization.
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1G~2.5Gbps Sping-latch SFP Transceiver 2km transmission, RoHS compliant Preliminary Datasheet Jan. 23, 2007
EEPROM Information
The SFP MSA defines a 256-byte memory map in EEPROM describing the transceiver’s capabilities, standard interfaces, manufacturer, and other information, which is accessible over a two-wire serial interface at the 8-bit address 1010000X (A0h). The memory contents refer to Table 5 Table 5 - EEPROM Serial ID Memory Contents (A0h) Addr. 0 1 2 3—10 11 12 13 14 15 16 17 18 19 20—35 36 37—39 40—55 56—59 60-61 62 63 64—65 66 67 68—83 84—91 92 93 94 95 96—255 Field Size (Bytes) 1 1 1 8 1 1 1 1 1 1 1 1 1 16 1 3 16 4 2 1 1 2 1 1 16 8 1 1 1 1 160 Name of Field Identifier Ext. Identifier Connector Transceiver Encoding BR, nominal Reserved 03 04 07 01 19 00 2km 2000m Hex Description SFP MOD4 LC 8B10B 2.5Gbps
00 00 00 02 42 00 01 04 1000BASE-LX, 200-SM-LC-L, Short distance
Length (9um)-km 02 Length (9um) 14 Length (50um) 00 Length (62.5um) 00 Length (copper) 00 Reserved Vendor name Reserved Vendor OUI Vendor PN Vendor rev Wavelength Reserved CC BASE Options BR, max BR, min Vendor SN 00 46 49 42 45 52 58 4F 4E 20 49 4E 43 2E 20 20 20 00 00 00 00 46 54 4D 2D 33 31 32 37 43 2D 53 4C 32 xx 47 20 xx xx xx xx 05 1E 00 xx 00 1A 00 00 xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx xx
“FIBERXON INC. “(ASCⅡ)
“FTM-3127C-SL2xG ” (ASCⅡ) ASCⅡ (“31 30 20 20” means 1.0 revision) 1310nm Check sum of bytes 0 - 62 LOS, TX_FAULT and TX_DISABLE
ASCⅡ Year (2 bytes), Month (2 bytes), Day (2 bytes) Diagnostics (Int.Cal) Diagnostics (Optional Alarm/warning flags) Diagnostics (SFF-8472 Rev 9.4) Check sum of bytes 64 - 94
Vendor date codexx xx xx xx xx xx 20 20 Diagnostic type 68 Enhanced option B0 SFF-8472 CC_EXT Vendor specific 02 xx
Fiberxon Proprietary and Confidential, Do Not Copy or Distribute Controlled Electronic Version. 24hrs Obsolete when printed out without authorization.
Page 4 of 10 Last printed 1/24/2007 1:56:00 PM
1G~2.5Gbps Sping-latch SFP Transceiver 2km transmission, RoHS compliant Preliminary Datasheet Jan. 23, 2007
Note: The “xx” byte should be filled in according to practical case. For more information, please refer to the related document of SFF-8472 Rev 9.5.
Monitoring Specification
The digital diagnostic monitoring interface also defines another 256-byte memory map in EEPROM, which makes use of the 8 bit address 1010001X (A2h). Please see Figure 1. For detail EEPROM information, please refer to the related document of SFF-8472 Rev 9.5. The monitoring specification of this product is described in Table 6
Figure 1, EEPROM Memory Map Specific Data Field Descriptions Table 6 - Monitoring Specification Parameter Temperature FTM-3127C-SL2G FTM-3127C-SL2iG Voltage Bias Current TX Power RX Power Range -10 to +80°C -40 to +95°C 3.0 to 3.6V 0 to 80mA -11 to -2dBm -20 to -2dBm Accuracy ±3°C ±3% ±10% ±3dB ±3dB Calibration* Internal Internal Internal Internal Internal
Recommended Host Board Power Supply Circuit
Figure 2 shows the recommended host board power supply circuit.
Fiberxon Proprietary and Confidential, Do Not Copy or Distribute Controlled Electronic Version. 24hrs Obsolete when printed out without authorization.
Page 5 of 10 Last printed 1/24/2007 1:56:00 PM
1G~2.5Gbps Sping-latch SFP Transceiver 2km transmission, RoHS compliant Preliminary Datasheet Jan. 23, 2007
Figure 2, Recommended Host Board Power Supply Circuit
Recommended Interface Circuit
Figure 3 shows the recommended interface circuit.
Host Board
Vcc (+3.3V)
2×4.7K to 10KΩ
TX Disable TX Fault SerDat Out +
SFP Module
VccT
10K Ω
Z=50Ω
TD +
SerDat Out -
Z=50Ω Z=50Ω
TD -
Laser driver
Protocol IC
SERDES IC
SerDat In +
RD +
SerDat In -
Z=50Ω
Amplifier
RD -
LOS
Vcc (+3.3V)
3×4.7K to 10KΩ
MOD-DEF2 MOD-DEF1 MOD-DEF0
EEPROM
RGND
Figure 3, Recommended Interface Circuit
Pin Definitions
Figure 4 below shows the pin numbering of SFP electrical interface. The pin functions are described in Table 7 and the accompanying notes.
Fiberxon Proprietary and Confidential, Do Not Copy or Distribute Controlled Electronic Version. 24hrs Obsolete when printed out without authorization.
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1G~2.5Gbps Sping-latch SFP Transceiver 2km transmission, RoHS compliant Preliminary Datasheet Jan. 23, 2007
P in 2 0 T O P V IE W OF BOARD P in 1 1
P in 1 0 B O T T O M V IE W OF BOARD P in 1
Figure 4, Pin View
Table 7 – Pin Function Definitions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Notes: 1. TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V. 2. TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are: Low (0~0.8V): (>0.8V,