CWDM SFP 120KM
1.25Gbps CWDM SFP Optical Transceiver, 120km Reach (PN: SP-Cxx1G-12DC)
Features
● Data-rate of 1.25Gbps operation
● 9 CWDM DFB wavelengths laser and APD photodetector for 120km transmission
● Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
● Digital Diagnostic Monitoring:
Internal Calibration or External Calibration
● Compatible with SONET OC-24-LR-1
● Compatible with RoHS
● +3.3V single power supply
● Operating case temperature:
Standard: 0 to +70°C
Applications
● Gigabit Ethernet
● Fiber Channel
● Switch to Switch interface
● Switched backplane applications
● Router/Server interface
● Other optical transmission systems
Description
The SFP transceivers are high performance, cost effective modules supporting data-rate of 1.25Gbps and 120km transmission distance with SMF.
The transceiver consists of three sections: an uncooled CWDM DFB laser transmitter, an APD 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 (MSA) and SFF-8472. For further information, please refer to SFP MSA.
Ordering Information for the CWDM SFP 120KM
Part Number | Product Description |
SP-Cxx1G-12DC | CWDM 1450nm~1610nm,1.25Gbps,120km, 0ºC ~ +70ºC, With DDM |
See below for “xx” values
-λC Wavelength Guide
| λC Wavelength Guide | |||||
Code | λC | Unit | Code | λC | Unit |
45 | 1450 | nm | 55 | 1550 | nm |
47 | 1470 | nm | 57 | 1570 | nm |
49 | 1490 | nm | 59 | 1590 | nm |
51 | 1510 | nm | 61 | 1610 | nm |
53 | 1530 | nm | |||
Optical Characteristics
| Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
Transmitter | ||||||||
Centre Wavelength | λc | λc-6.5 | λc | λc+6.5 | nm | |||
Spectral Width (-20dB) | ∆λ | 1 | nm | |||||
Side Mode Suppression Ratio | SMSR | 30 | dB | |||||
Average Output Power | Pout | 0 | 5 | dBm | 1 | |||
Extinction Ratio | ER | 9 | dB | |||||
Optical Rise/Fall Time (20%~80%) | tr/tf | 180 | ps | |||||
Data Input Swing Differential | VIN | 400 | 1800 | 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 | ||||||||
Receiver Sensitivity | -31 | dBm | 3 | |||||
Receiver Overload | -9 | dBm | 3 | |||||
LOS De-Assert | LOSD | -31 | dBm | |||||
LOS Assert | LOSA | -35 | dBm | |||||
LOS Hysteresis | 1 | 4 | dB | |||||
Data Output Swing Differential | Vout | 370 | 1800 | 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.
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