applications which operate at 25.78125 Gbps up to 70 m using OM3 fiber and 100 m using OM4 fiber without FEC or 300m OM4 with KR-FEC. This module is designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 20 contact edge type connector. The optical interface uses duplex LC receptacle. This module incorporates F-tone Networks proven circuit and VCSEL technology to provide reliable long life, high performance, and consistent service.
Features
● Hot-pluggable SFP28 form factor
● Supports 25.78125Gbps data rate
● Maximum link length of 70m on OM3 MMF and 100m on OM4 MMF w/o FEC or 300m OM4 MMF with FEC
● 850nm VCSEL laser and PIN photo-detector
● Internal CDR on both Transmitter and Receiver channel
● Duplex LC receptacle
● Single 3.3V power supply
● Power dissipation < 1W
● Digital diagnostics functions are available via the I2C interface
● RoHS 2.0 compliant
● Case temperature range: -40°C to 85°C
Applications
● 25GBASE-SR 25G Ethernet
Absolute Maximum Ratings
Table1 - Absolute Maximum Ratings
|
Parameter |
Symbol |
Min |
Max |
Unit |
|
Supply Voltage |
Vcc |
0 |
3.6 |
V |
|
Storage Temperature |
Ts |
-40 |
+85 |
°C |
|
Operating Humidity |
- |
5 |
85 |
% |
Recommended Operating Conditions
Table2 - Recommended Operating Conditions
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
|
Operating Case Temperature |
Tc |
-40 |
85 |
°C |
|
|
Power Supply Voltage |
Vcc |
3.13 |
3.3 |
3.47 |
V |
|
Power Supply Current |
Icc |
300 |
mA |
||
|
Fiber Length on 50/125μm high-bandwidth (OM4) MMF |
300 |
m |
Optical and Electrical Characteristics
Table 3 - Optical and Electrical Characteristics
|
Parameter |
Symbol |
Min |
Typical |
Max |
Unit |
Notes |
||
|
Transmitter |
||||||||
|
Data rate |
BR |
25.78125 |
Gbps |
|||||
|
Centre Wavelength |
λc |
840 |
850 |
860 |
nm |
|||
|
Spectral Width (-20dB) |
σ |
0.6 |
nm |
|||||
|
Average Output Power |
Pavg |
-8.4 |
2.4 |
dBm |
||||
|
Optical Power OMA |
POMA |
-6.4 |
3 |
dBm |
||||
|
Extinction Ratio |
ER |
2 |
dB |
|||||
|
Differential datainput swing |
VIN,PP |
40 |
1000 |
mV |
||||
|
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 |
||||||||
|
Data rate |
BR |
25.78125 |
Gbps |
|||||
|
Centre Wavelength |
λc |
840 |
850 |
860 |
nm |
|||
|
Stressed Sensitivity (OMA) |
- |
- |
-5.2 |
dBm |
||||
|
Receiver Power (OMA) |
3 |
dBm |
||||||
|
LOS De-Assert |
LOSD |
-13 |
dBm |
|||||
|
LOS Assert |
LOSA |
-30 |
dBm |
|||||
|
LOS Hysteresis |
0.5 |
dB |
||||||
|
Differential data output swing |
Vout,PP |
300 |
850 |
mV |
||||
|
LOS |
High |
2.0 |
Vcc |
V |
||||
|
Low |
0.8 |
V |
||||||
Notes:Receive Sensitivity measured with a prbs31 pattern @25.78125Gb/s, BER 1E-12;
Mechanical Dimensions
Ordering Information
|
Part Number |
Product Description |
|
FTCS-8525G-02DI |
SFP28 SR, 25.78125Gb/s, 850nm, 100m, OM4 MMF w/o FEC or 300m OM4 MMF with FEC, -40℃ to -85℃ |
北亿纤通 | F-tone Networks
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注：本产品有全国产化型号可选
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.