1.25G SFP LC Fiber Optic SFP Module 40KM Distance 1550DFB Laser SM BIDI Single Mode
PRODUCT DESCRIPTION
The SFP Module compliants with Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF-8472. The fully SFP compliant form factor provides hot pluggability, easy optical port upgrades and low EMI emission.
1.25Gbps SFP BIDI 40KM Optical Transceiver Module Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the DFP laser and the PIN photo-detector .
Transceivers are a high performance, cost effective module which have a single LC optics interface. They are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA) and Digital diagnostics functions are available via the 2-wire serial bus specified in SFF-8472. The receiver section uses a PIN receiver and the transmitter uses a 1550 nm DFB laser, up to 20dB link budge ensure this module 1000Base-LX Ethernet 40km application.
PRODUCT FEATURES
+3.3V single power supply
Operating case temperature:
Commercial : 0 to +70°C
Industrial : -40 to +85°C
Data-rate of 1.25Gbps/1.063Gbps operation
1550nm DFB laser and 1310nm PINTIA for 40km transmission
Compliant with SFP MSA and SFF-8472 with Simplex LC receptacle
Digital Diagnostic Monitoring:
Internal Calibration or External Calibration
Compatible with SONET OC-24-LR-1
Applications
Fiber Channel
Switch to Switch interface
Switched backplane applications
Router/Server interface
Other optical transmission systems
Recommended Operating Conditions
Parameter | Symbol | Unit | Min | Typ | Max |
Storage Temperature Range | Ts | ℃ | 0 | 70 | |
Power Supply Voltage | Vcc | V | 3.135 | 3.465 | |
Data Rate | Gb/s | - | 1.25 | - |
Specification of Transmitter
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Average Output Power | POUT | -4 | 0 | dBm | Note (1) | |
Extinction Ratio | ER | 8.2 | dB | |||
Center Wavelength | λC | 1500 | 1550 | 1580 | nm | DFB Laser |
Side Mode Suppression Ratio | SMSR | 30 | dB | |||
Spectrum Bandwidth(-20dB) | σ | 1 | nm | |||
Differential Line Input Impedance | RIN | 90 | 100 | 110 | Ohm | |
Output Eye Mask | Compliant with G.959(class 1 laser safety) | Note (2) |
Note (1): Measure at 2^23-1 NRZ PRBS pattern
Note (2): Transmitter eye mask definition
Specification of Receiver
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Input Optical Wavelength | λIN | 1260 | 1310 | 1360 | nm | |
Receiver Sensitivity | PIN | -24 | dBm | Note (1) | ||
Los Of Signal Assert | PA | -35 | dBm | |||
Los Of Signal De-assert | PD | -28 | dBm | Note (2) | ||
LOS Hysteresis | PA-PD | 0.5 | 2 | 6 | dB | |
Receiver Overload | Pmax -PIN | -3 | dBm |
Note (1): Measured with Light source 1310nm, ER=8.2dB; BER =<10^-12 @PRBS=2^23-1 NRZ
Note (2): When LOS de-asserted, the RX data+/- output is High-level (fixed)