Module SFP : 850nm VCSEL, Duplex LC, 2.5GBase-X
- Distance: 0.3km
- Temperature en utilisation normale: -10°C ~ 70°C
- Temperature en utilisation extrême: -40°C ~ 85°C
Les modules SFP enfichables Lantech 2.5GBase-X Small Form Factor sont conformes aux spécifications actuelles du SFP Multi-Source Agreement (MSA). L’émetteur VCSEL 850nm haute performance et le récepteur PIN haute sensibilité offrent des performances supérieures pour les applications SONET/SDH jusqu’à 0,3 km de liaisons optiques sur fibre multimode.
Caractéristiques:
- Conforme à la norme SFP MSA
- Conforme à l’interface de surveillance diagnostique SFP8472.
- Conforme à 2500Base-X
- Plugable à chaud
- Transmetteur laser VCSEL 850nm
- Connecteur Duplex LC
- Interface 2 fils pour la gestion et le moniteur de diagnostic
- Alimentation simple +3.3V
- Distance de transmission de 0,3 km par rapport à la fibre multimode
- Conforme à la directive RoHS
Absolute Maximum Ratings
Parameter | Symbol | Min. | Max. | Unit | Note |
Storage Temperature | TST | -40 | +85 | °C | |
Supply Voltage | Vcc | -0.5 | 4.0 | V | |
Storage Relative Humidity | RH | 5 | 95 | % |
Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Case Operating Temperature | TOP | -10 | 70 | °C | ||
Case Operating Temperature | TOP | -40 | 85 | °C | ||
Supply Voltage | Vcc | +3.15 | +3.3 | +3.45 | V | |
Supply Current | ICC | 240 | mA |
Transmitter Electro-Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note | ||
Optical launch Power | PO | -9 | -3 | dBm | 1 | |||
Center Wavelength | λC | 830 | 850 | 870 | nm | |||
Spectral Width (RMS) | Δλ | 0.85 | nm | |||||
Optical Extinction Ratio | ER | 3.5 | dB | |||||
Rise/Fall Time (10%~90%) | Tr/Tf | 0.16 | ns | |||||
Optical Eye Mask | ITU-T G.957 STM-16 | |||||||
Differential Data Input Voltage | VDIFF | 400 | 2000 | mV | ||||
Transmit Disable Voltage | VDIS | 2.0 | Vcc | V | ||||
Transmit Enable Voltage | VEN | GND | GND+0.8 | V | ||||
| Notes: 1. The optical power is launched into a 50/125μm multi-mode fiber. | ||||||||
Receiver Electro-Optical Characteristics
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note | ||
Receiver Sensitivity | PINMIN | -16 | dBm | 1 | ||||
Maximum Input Power | PINMAX | -3 | dBm | 1 | ||||
Operating Center Wavelength | λC | 770 | 870 | nm | ||||
LOS De-Assert | LOSD | -16 | dBm | |||||
LOS Assert | LOSA | -30 | dBm | |||||
LOS Hysteresis | LOSVHY | 0.5 | dB | |||||
Differential Data Output Voltage | Vout, pp | 500 | 1200 | mV | ||||
Data Output Rise/Fall Time (10%~90%) | Tr/Tf | 0.18 | ns | |||||
Receiver LOS Signal Output Voltage-Low | LOSVL | GND | GND+0.5 | V | ||||
Receiver LOS Signal Output Voltage-High | LOSVH | 2.4 | Vcc | V | ||||
| Notes: 1. Measured with a PRBS 231-1 test pattern @ 2488Mbps BER < 10-10 | ||||||||
Pin Assignment
|
Pin Description
Pin | Name | Function / Description |
1 | VeeT | Transmitter Ground |
2 | TX_Fault | Transmitter Fault Indication (1) |
3 | TX_Disable | Transmission Disable – Module disables on high or open (2) |
4 | MOD-DEF(2) | Module Definition 2 – SDA: Serial Data Signal |
5 | MOD-DEF(1) | Module Definition 1 – SCL: Serial Clock Signal |
6 | MOD-DEF(0) | Module Definition 0 – LVTTL Low (3) |
7 | Rate Select | Not Connected – Open Circuit |
8 | LOS | Receiver Loss of Signal (4) |
9 | VeeR | Receiver Ground |
10 | VeeR | Receiver Ground |
11 | VeeR | Receiver Ground |
12 | RD- | Inverse Received Data out, Differential LVPECL, AC coupled |
13 | RD+ | Received Data out, Differential LVPECL, AC coupled |
14 | VeeR | Receiver Ground |
15 | VccR | Receiver Power |
16 | VccT | Transmitter Power |
17 | VeeT | Transmitter Ground |
18 | TD+ | Transmitter Data In, Differential LVPECL, AC coupled |
19 | TD- | Inverse Transmitter Data In, Differential LVPECL, AC coupled |
20 | VeeT | Transmitter Ground |
| Note1: TX Fault is open collector/drain output which should be pulled up externally with a 4.7K~ 10KΩ resistor on the host board to supply <VccT+0.3V or VccR+0.3V. When high, this output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to <0.8V. Note2: TX Disable input is used to shut down the laser output per the state table below. It is pulled up within the module with a 4.7K~10KΩ resistor. 1)Low(0~0.8V): Transmitter on; 2)Between(0.8V and 2V): Undefined; 3)High (2.0~ VccT): Transmitter Disabled; 4)Open: Transmitter Disabled Note3: Mod-DEF 0, 1, 2. These are the module definition pins. They should be pulled up with a 4.7K~10KΩ resistor on the host board to supply less than VccT+0.3V or VccR+0.3V. Mod-DEF(0) is grounded by the module to indicate that the module is present. Mod-DEF(1) is clock line of two wire serial interface for optional serial ID. Mod-DEF(2) is data line of two wire serial interface for optional serial ID. Note4: LOS (Loss of signal) is an open collector/drain output which should be pulled up externally with a 4.7K~10KΩ resistor on the host board to supply <VccT+0.3V or VccR+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 will be pulled to <0.8V. | ||
Références | Longueur d’ondes | Distance | Temp. |
| ATV-8330-262 | 850nm | 0.3km | -10~70°C |
| ATV-8330-262-E | 850nm | 0.3km | -40~85°C |
