Features
● Operating data rate up to 25.78Gbps
● Up to 10km transmission distance
● High sensitivity Pin photodiode and TIA
● LC duplex connector
● Hot pluggable 20pin connector
● Low power consumption <1 W
● -20 to 70℃ operating wide temperature range
● Single +3.3V±5% power supply
● Compliant with SFF-8472
● Fully RoHS Compliant
Product Details
D-net's 25G CWDM 1270nm 10KM Module utilizes a CWDM DML laser and PIN receiver. Both its receiving and transmission channel incorporate a built-in CDR circuit capable of supporting a maximum rate of up to 25.78Gbps. The 25G 1270nm 10KM color optical transceiver is designed to conserve fiber resources, thereby effectively reducing the overall operational costs for service providers. The 25G 1270nm 10KM Module adheres to SFF-8472 and RoHS standards. The 25G SFP28 CWDM 10KM transceiver module finds wide application in data center interconnectivity, communication operator optical transmission networks, wireless base station backhaul networks, and enterprise Ethernet scenarios.
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Absolute Maximum Ratings
|
Parameter |
Symbol |
Unit |
Min |
Max |
|
Storage Temperature Range |
Ts |
oC |
-40 |
85 |
|
Relative Humidity |
RH |
% |
0 |
95 |
|
Maximum Supply Voltage |
Vcc3 |
V |
-0.5 |
4.0 |
Recommended Operating Conditions
|
Parameter |
Symbol |
Unit |
Min |
Typ |
Max |
|
Operating Case Temperature Range |
Tc |
oC |
-20 |
70 |
|
|
Power Supply Voltage |
Vcc |
V |
3.14 |
3.3 |
3.46 |
|
Bit Rate |
BR |
Gb/s |
25.78 |
||
|
Bit Error Ratio |
BER |
5*10-5 |
|||
|
Max Supported Link Length |
L |
Km |
10 |
Electric Ports Definition
|
Parameter |
Symbol |
Unit |
Min |
Typ |
Max |
Note |
|
Supply Voltage |
VCC |
V |
3.14 |
3.3 |
3.46 |
|
|
Power consumption |
P |
mW |
1000 |
|||
|
Transmitter |
||||||
|
Input Differential Impedance |
RIN |
Ω |
100 |
|||
|
Single-ended Data Input Swing |
VIN |
mVp-p |
90 |
450 |
||
|
Transmit Disable Voltage |
VDIS |
V |
2 |
VCCHOST |
||
|
Transmit Enable Voltage |
VEN |
V |
VEE |
VEE+0.8 |
||
|
Transmit Fault Assert Voltage |
VFA |
V |
2 |
VCCHOST |
||
|
Transmit Fault De-Assert Voltage |
VFDA |
V |
VEE |
VEE+0.4 |
||
|
Receiver |
||||||
|
Single-ended Data Output Swing |
VOD |
mVp-p |
200 |
450 |
||
|
LOS Fault |
VLOSFT |
V |
2 |
VCCHOST |
||
|
LOS Normal |
VLOSNR |
V |
VEE |
VEE+0.4 |
||
Optical Characteristics
(Tc=0 to 70 oC and Vcc= 3.14 to 3.46V)
|
Parameter |
Symbol |
Unit |
Min |
Typ |
Max |
Note |
|
Nominal Wavelength |
λ |
nm |
1271,1291,1311,1331,1351, 1371,1391,1411,1431,1451 |
|||
|
Wavelength Drift |
Δλ |
nm |
-6.5 |
+6.5 |
||
|
Average Output Power |
Pav |
dBm |
-3 |
2 |
||
|
Spectral Width (-20dB) |
s |
nm |
1 |
|||
|
Extinction Ratio |
ER |
dB |
3.5 |
|||
|
Side Mode Suppression Ratio |
SMSR |
dB |
30 |
|||
|
Average Launch Power of OFF Transmitter |
POFF |
dBm |
-30 |
|||
|
Relative Intensity Noise |
RIN |
dB/Hz |
-128 |
|||
|
Center Wavelength |
λC |
nm |
1260 |
1620 |
||
|
Receiver Sensitivity(OMA) |
RSENSE |
dBm |
-11.3 |
1 |
||
|
Receiver Overload (OMA) |
Pmax |
dBm |
2.2 |
|||
|
Optical Return Loss |
dB |
-26 |
||||
|
LOS Assert |
LOSA |
dBm |
-30 |
|||
|
LOS De-Assert LOS |
LOSD |
dBm |
-17 |
|||
|
LOS Hysteresis |
dB |
0.5 |
||||
Note1: Measured at 25.78125Gb/s,ER>3.5dBm, PRBS 231-1 and BER better than or equal to 5E-5;
Ordering Information
|
Part Number |
Description |
|
SFP28-25GC10-27 |
25G CWDM 1270nm 10KM LC Optical Transceiver |
FAQ
1. What is a 25G SFP28 port?
A: D-NET's SFP28 port is for 25G speed port similar size to 10G SFP+ port.
2. Is SFP28 an Ethernet?
A: Ethernet SFP28 is for customers who are deploying 25GbE, SFP28 module, based on the package form of SFP+, supports 25G Ethernet standard. Backward compatibility with 10GbE provides a natural migration path for customers who need more bandwidth.
