Cisco Compatible 1.25G 80KM SFP Transceiver SM 1550nm Duplex Gigabit Optical SFP Module
Cisco Compatible 1.25G 80KM
SFP Transceiver SM 1550nm Duplex Gigabit Optical SFP Module
Introduction
The SFP transceivers are high performance, cost effective modules supporting data rate of 1.25Gbps and 80km transmission distance with SMF.
The transceiver consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions.
Product Features
- Supports up to 1.25Gbps bit rates
- Hot-pluggable SFP footprint
- 1550nm DFB laser and PIN photo detector, Up to 80km for SMF transmission
- Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
- Compatible with RoHS
- Single +3.3V power supply
- Real Time Digital Diagnostic Monitoring
- Operating case temperature:
- Standard: 0 to +70°C
- Industrial: -40 to +85°C
Applications
- 1.25Gbps Optical systems
- Gigabit Ethernet
- 1.063Gbps Fiber Channel
- Other Optical links
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
| Supply Voltage | Vcc | -0.5 | 4.5 | V |
| Storage Temperature | Ts | -40 | +85 | °C |
| Operating Humidity | - | 5 | 85 | % |
Recommended Operating Conditions
| Parameter | Symbol | Min | Typical | Max | Unit | |
| Operating Case Temperature | Standard | Tc | 0 | +70 | °C | |
| Extended | -20 | +80 | °C | |||
| Industrial | -40 | +85 | °C | |||
| Power Supply Voltage | Vcc | 3.135 | 3.30 | 3.465 | V | |
| Power Supply Current | Icc | 300 | mA | |||
| Data Rate | 0.1 | 1.25 | Gbps | |||
Optical and Electrical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
| Transmitter | ||||||||
| Centre Wavelength | λc | 1530 | 1550 | 1570 | nm | |||
| Spectral Width(-20dB) | Δλ | 1 | nm | |||||
| Side-Mode Suppression Ratio | SMSR | 30 | - | - | dB | |||
| Average Output Power | Pout | 0 | +5 | dBm | 1 | |||
| Extinction Ratio | ER | 9.0 | dB | |||||
| Data Input Swing Differential | VIN | 180 | 1200 | mV | 2 | |||
| Input Differential Impedance | ZIN | 90 | 100 | 110 | Ω | |||
| TX Disable | Disable | 2.0 | Vcc | V | ||||
| Enable | 0 | 0.8 | V | |||||
| TX Fault | Fault | 2.0 | Vcc | V | ||||
| Normal | 0 | 0.8 | V | |||||
| Receiver | ||||||||
| Centre Wavelength | λc | 1260 | 1610 | nm | ||||
| Receiver Sensitivity | -26 | dBm | 3 | |||||
| Receiver Overload | -1 | dBm | 3 | |||||
| LOS De-Assert | LOSD | -27 | dBm | |||||
| LOS Assert | LOSA | -38 | dBm | |||||
| LOS Hysteresis | 0.5 | 4 | dB | |||||
| Data Output Swing Differential | Vout | 600 | 800 | 1000 | mV | 4 | ||
| LOS | High | 2.0 | Vcc | V | ||||
| Low | 0.8 | V | ||||||
Mechanical Dimensions
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