SFP-GIG-LH40 Transceiver 1000BASE-LX, 1000 Mbps, Connecteur LC, Monomode (SMF), Transmetteur de longueur d’onde de 1310nm, portée jusqu’à 40km. Caractéristiques: • • • • • • • • • Débit Data jusqu’à 1.25Gbps Transmetteur DFB LD 1310nm Portée jusqu’à 40km Alimentation 3. 3V et Interface TTL Logic Connecteur LC Duplex Insérable à Chaud Temperature Opérationnelle Standard: 0°C ~+70°C Industrielle:-40°C~+85°C Compliant with MSA SFP Specification Digital diagnostic monitor interface Compatible with SFF-8472 Applications: • • • • Switches et Routers Gigabit Ethernet Infrastructure Switch Fiber channel Applications XDSL Switching Metro Edge Description: Le Transceiver Monomode SFP-GIG-LH40 est une module pour les communications optiques bidirectionnelles telles que Gigabit Ethernet 1000BASE-LX et Fiber Channel 1x SM-LC-L FC-PI. C’est grâce au connecteur SFP 20-pin que la connexion à chaud est possible. Ce module est conçu pour la fibre optique Monomode et fonctionne sur une longueur d’onde nominale de 1310 nm. La partie Transmetteur du module utilise une technologie à puits Laser multiples de Class 1 Laser en conformité avec le International Safety Standard IEC-60825. La partie récepteur utilise un détecteur InGaAs pré-amplifié (IDP) monté dans une tête optique Le SFP-GIG-LH40 est conçu pour être conforme à SFF-8472 SFP Multi-source Agreement (MSA). Regulatory Compliance Feature Standard Electrostatic Discharge (ESD) to the Electrical Pins Electromagnetic Interference (EMI) MIL-STD-883E Method 3015.7 Class 1(>500 V) Isolation with the case FCC Part 15 Class B Compatible with standards FDA 21CFR 1040.10 and 1040.11 EN60950, EN (IEC) 60825-1,2 UL and CUL RoHS Compatible with Class I laser product. Compatible with T V standards UL file E317337 RoHS6 Parameter Symbol Min. Max. Unit Storage Temperature TS -40 +85 °C Supply Voltage VCC -0.5 3.6 V Laser Eye Safety Component Recognition Green Products Performance Absolute Maximum Ratings Recommended Operating Conditions: Parameter Symbol Min. Typ Max. Unit 70 +85 °C 3.45 V Operating Case Temperature Power Supply Voltage Power Supply Current TA 0 -40 VCC 3.15 ICC 300 mA Surge Current ISurge +30 mA 3.3 Baud Rate 1.25 GBaud PERFORMANCE SPECIFICATIONS - ELECTRICAL: Parameter Symbol Min. Typ. Max. Unit Notes 2500 mVp 115 ohms 2 3.45 V 0 0.8 V 2 Vcc+0.3 V Io = 400µA; Host Vcc 0 0.5 V Io = -4.0mA AC coupled inputs TRANSMITTER VLPECL Inputs(Differential) Input Impedance (Differential) Tx_DISABLE Input Voltage - High Tx_DISABLE Input Voltage - Low Tx_FAULT Output Voltage -- High Tx_FAULT Output Voltage -- Low Vin 400 Zin 85 100 AC coupled inputs Rin > 100 kohms @ DC RECEIVER LVPECL Outputs (Differential) Output Impedance (Differential) Vout 400 800 1200 mVpp Zout 85 100 115 ohms Rx_LOS Output Voltage - High Rx_LOS Output Voltage - Low MOD_DEF ( 0:2 ) 2 Vcc+0.3 V lo = 400µA; Host Vcc 0 0.8 V lo = -4.0mA V V With Serial ID Max. Unit VoH 2.5 VoL 0 0.5 Symbol Min. Optical and Electrical Characteristics: Parameter. 9µm Core Diameter SMF SFP-GIG-LH70 Data Rate Typical 70 km 1.25 Gbps Transmitter Centre Wavelength λc Spectral Width (RMS) σ Average Output Power P0ut -2 Extinction Ratio EX 9 dB Side Mode Suppression Ratio SMSR 30 dB Rise/Fal Time(20% 80%) Total Jitter 1260 nm 1 nm +3 dBm 1.2 ps TJ 56.5 ps ITU-T G.957 Compliant Data Input Swing Differential VIN 500 Input Differential Impedance ZIN 90 TX_Fault 1360 tr/tf Output Optical Eye TX Disable 1310 100 2000 mV 110 Ω Disable 2.0 Vcc+0.3 Enable 0 0.8 Fault 2.0 Vcc+0.3 Normal 0 0.8 TX_Disable Assert Time t_off V V 10 us 1600 nm -24 dBm 110 Ω 2000 mV Receiver Centre Wavelength λc Receiver Sensitivity PIN Output Differential Impedance PIN 90 Data Output Swing Differential VOUT 370 Rise/Fall Time Tr/tf 2.2 ns LOS De-Assert LOSD -25 dBm LOS Assert LOSA LOS 1100 100 -40 dBm High 2.0 VCC+0.3 Low 0 0.8 V SFP Transceiver Electrical Pad Layout : Pin Description: PIN # Symbol Description Plug Seq. 1 VEET Transmitter 1 2 TX Fault Transmitter Fault. Not supported 3 Notes Note1 Note 2, Module disables on high or open Note 3, Data line for Serial ID. Note 3, Clock line for Serial ID. Note 3, Grounded within the module. 3 TX Disable Transmitter Disable 3 4 MOD_DEF (2) Module Definition 2 3 5 MOD_DEF (1) Module Definition 1. 3 6 MOD_DEF (0) Module Definition 0. 3 7 Rate Select No connection 3 Function not available 8 LOS Loss of Signal 3 Note 4 9 VEER Receiver ground 1 Note 5 10 VEER Receiver ground 1 Note 5 11 VEER Receiver ground 1 Note 5 12 RD– Receiver Inverted DATA out 3 Note 6 13 RD+ Receiver DATA out. 3 Note 7 14 VEER Receiver ground 1 Note 5 15 VCCR Receiver power supply 2 3.3 ± 5%, Note 7 16 VCCR Transmitter power supply 2 3.3 ± 5%, Note 7 17 VEET Transmitter ground 1 Note 5 18 TD+ Transmitter Non-Inverted DATA in. 3 Note 8 19 TD- Transmitter Inverted DATA in. 3 Note 8 20 VEET Transmitter ground 1 Note 5 Notes. 1) ) TX Fault is an open collector/drain output, which should be pul ed up with a 4.7K – 10K Ω resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output wil be pulled to < 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 4.7 - 10 K Ω resistor. Its states are: Low (0 to 0.8V): Transmitter on (>0.8, < 2.0V): Undefined High (2.0 to 3.465V): Transmitter Disabled Open: Transmitter Disabled 3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K to10K Ω resistor on the host board. The pull-up voltage shall be VccT or VccR (see Section IV for further details). Mod-Def 0 is grounded by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for serial ID Mod-Def 2 is the data line of two wire serial interface for serial ID 4) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K to 10K Ω resistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output wil be pulled to <0.8V. 5) ) VeeR and VeeT may be internal y connected within the SFP module. 6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100 Ω (differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will be between 370 and 2000 mV differential (185 to 1000 mV single ended) when properly terminated. 7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V 5% at the SFP connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1 ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30mA greater than the steady state value. VccR and VccT may be internal y connected within the SFP transceiver module. 8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board. The inputs wil accept differential swings of 500 to 2400 mV (250 to 1200 mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 to 600 mV single-ended) be used for best EMI performance. EEPROM: The serial interface uses the 2-wire serial CMOS EEPROM protocol defined for the ATMEL AT24C02/04 family of components. When the serial protocol is activated, the host generates the serial clock signal (SCL). The positive edge clocks data into those segments of the EEPROM that are not write protected within the SFP transceiver. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially. The Module provides diagnostic information about the present operating conditions. The transceiver generates this diagnostic data by digitization of internal analog signals. Calibration and alarm/warning threshold data is written during device manufacture. Received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring all are implemented. The diagnostic data are raw A/D values and must be converted to real world units using calibration constants stored in EEPROM locations 56 – 95 at wire serial bus address A2h. The digital diagnostic memory map specific data field define as following .For detail EEPROM information, please refer to the related document of SFF 8472 Rev 9.3 Recommend Circuit Schematic Mechanical Specifications Images for illustration purposes only, product case can vary. Please contact for further information.
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