Description
The SFP transceivers are high performance, cost effective modules supporting data-rate of 1.25Gbps and 2KM transmission distance with MMF.The transceiver consists of three sections: a 1310nm FP LD 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 (MSA) and SFF-8472. For further information, please refer to SFP MSA.
Features
● Data-rate of 1.25Gbps operation
● 1310nm FP LD laser and PIN photodetector
● Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
● Digital Diagnostic Monitoring:Internal Calibration or External Calibration
● 2km transmission with 50/125µm MMF
● 1km transmission with 62.5/125µm MMF
● Compatible with RoHS
● +3.3V single power supply
● Operating case temperature:
Standard : 0 to +70°C
Industrial : -40 to +85°C
Applications
● Gigabit Ethernet
● Fiber Channel
● Switch to Switch interface
● Switched backplane applications
● Router/Server interface
● Other optical transmission systems
Absolute Maximum Ratings
Table 1 - 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
Table 2 - Recommended Operating Conditions
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
|
Operating Case Temperature |
Standard |
Tc |
0 |
+70 |
°C |
|
|
-20 |
+85 |
|||||
|
industrial |
-40 |
+85 |
°C |
|||
|
Power Supply Voltage |
Vcc |
3.13 |
3.3 |
3.47 |
V |
|
|
Power Supply Current |
Icc |
300 |
mA |
|||
|
Data Rate |
1.25 |
Gbps |
||||
Optical and Electrical Characteristics
Table 3 - Optical and Electrical Characteristics
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
||
|
Transmitter |
||||||||
|
Centre Wavelength |
λc |
1310 |
nm |
|||||
|
Spectral Width (RMS) |
∆λ |
0.85 |
nm |
|||||
|
Average Output Power |
Pout |
-5 |
0 |
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 |
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 |
1310 |
nm |
|||||
|
Receiver Sensitivity |
-20 |
dBm |
3 |
|||||
|
Receiver Overload |
0 |
dBm |
3 |
|||||
|
LOS De-Assert |
LOSD |
-21 |
dBm |
|||||
|
LOS Assert |
LOSA |
-35 |
dBm |
|||||
|
LOS Hysteresis |
1 |
4 |
dB |
|||||
|
Data Output Swing Differential |
Vout |
400 |
1800 |
mV |
4 |
|||
|
LOS |
High |
2.0 |
Vcc |
V |
||||
|
Low |
0.8 |
V |
||||||
Notes:
1. The optical power is launched into MMF.
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.
Timing and Electrical
Table 4 - Timing and Electrical
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
Tx Disable Negate Time |
t_on |
1 |
ms |
||
|
Tx Disable Assert Time |
t_off |
10 |
µs |
||
|
Time To Initialize, including Reset of Tx Fault |
t_init |
300 |
ms |
||
|
Tx Fault Assert Time |
t_fault |
100 |
µs |
||
|
Tx Disable To Reset |
t_reset |
10 |
µs |
||
|
LOS Assert Time |
t_loss_on |
100 |
µs |
||
|
LOS De-assert Time |
t_loss_off |
100 |
µs |
||
|
Serial ID Clock Rate |
f_serial_clock |
400 |
KHz |
||
|
MOD_DEF (0:2)-High |
VH |
2 |
Vcc |
V |
|
|
MOD_DEF (0:2)-Low |
VL |
0.8 |
V |
Mechanical Dimensions
Ordering information
|
Part Number |
Product Description |
|
FTCS-1312-02D |
SFP 1.25G 1310nm MMF 2km DDM(Option) 0ºC ~ +70ºC |
|
FTCS-1312-02DI |
SFP 1.25G 1310nm MMF 2km DDM(Option) -40ºC ~ +85ºC |