Product Description
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Key Features
• 1310nm FP laser and photo PIN detector for 20km transmission
• Up to 1.25Gbps data links
• +3.3V single power supply
• Compatible with RoHS & SONET
• Compliant with SFP MSA and SFF-8472 with Duplex LC receptacle
• Digital Diagnostic Monitoring: Internal Calibration or External Calibration
The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps and 20km transmission distance with SMF.
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
Application
- SDH and SONET system
- Fiber Channel
- Switch to Switch interface
- Switched backplane applications
- Router/Server interface
- Other optical transmission systems
Optical and Electrical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
Transmitter |
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| Centre Wavelength | 1260 | 1310 | 1360 | nm | ||||
| Spectral Width(RMS) | 4 | nm | ||||||
| Average OutputPower | Pout | -9 | -3 | dBm | 1 | |||
| Extinction Ratio | ER | 9 | dB | |||||
| Optical Rise/Fall Time (20%~80%) | tr/tf | 0.26 | ns | |||||
| Data Input Swing Differential | VIN | 400 | 1800 | mV | 2 | |||
| Input Differential Impedance | ZIN | 90 | 100 | 110 | O | |||
| TXDisable | Disable | 2.0 | Vcc | V | ||||
| Enable | 0 | 0.8 | V | |||||
| TXFault | Fault | 2.0 | Vcc | V | ||||
| Normal | 0 | 0.8 | V | |||||
Receiver |
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| Centre Wavelength | 1260 | 1580 | nm | |||||
| Receiver Sensitivity | -23 | dBm | 3 | |||||
| Receiver Overload | -3 | dBm | 3 | |||||
| LOS De-Assert | LOSD | -24 | dBm | |||||
| LOS Assert | LOSA | -35 | dBm | |||||
| LOS Hysteresis | 1 | 4 | dB | |||||
| Data Output Swing Differential | Vout | 700 | 900 | mV | 4 | |||
| LOS | High | 2.0 | Vcc | V | ||||
| Low | 0.8 | V | ||||||
Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER =1×10-12.
4. Internally AC-coupled.
