100G 1310nm 10km QSFP28
- LX8502CDR QSFP28 transceiver modules are designed for 100 Gigabit Ethernet over single-mode fiber. They are compliant with the QSFP28 MSA, IEEE 802.3ba 100GBASE-LR4. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP28 MSA
- Compliant with IEEE Std 802.3ba, 100G Ethernet LR4
- Compliant with QSFP28 MSA
- 4 cooled 25Gb/s channels LAN WDM DFB TOSA
- 4 channels PIN photodetector
- Single +3.3V power supply
- Class 1 laser safety certified
- Power consumption less than 3.5W
- Commercial operating temperature: -5℃ to +70℃
- Up to 10km on SMF
Optical Characteristics
Table 1. Transmitter Optical Characteristics
Parameter | Symbol | Minimum | Typical | Maximum | Unit | Notes |
Launch Optical Power per lane | Po | -4.3 | - | 4.5 | DBm | 1 |
Total Launch Optical Power | Po | - | - | 10.5 | DBm | 1 |
Center Wavelength Range(OMA), each lane | L1
L2
L3
L4 | 1294.53
1299.02
1303.54
1308.09 | 1295.56
1300.05
1304.58
1309.14 | 1296.59
1301.09
1305.63
1310.19 | Nm
Nm
Nm
Nm | -
-
-
- |
Extinction Ratio | EX | 4 | - | - | DB | 2 |
Spectral width(-20dB) | Δλ | - | - | 1 | Nm | - |
Side Mode Suppression Ratio | SMSR | 30 | - | - | DB | - |
Optical Return Loss Tolerance | ORLT | - | - | 20 | DB | - |
Pout @TX-Disable Asserted | Poff | - | - | -30 | DBm | 1 |
Eye Mask {X1, X2, X3, Y1, Y2, Y3} | {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} |
Notes:
1. The optical power is launched into SMF.
2. Measured with a PRBS 231-1 testpattern @25.78125Gbps.
Table 2.Receiver Optical Characteristics
Parameter | Symbol | Minimum | Typical | Maximum | Unit | Notes |
Center Wavelength | L1
L2
L3
L4 | 1294.53
1299.02
1303.54
1308.09 | 1295.56
1300.05
1304.58
1309.14 | 1296.59
1301.09
1305.63
1310.19 | Nm
Nm
Nm
Nm | -
-
-
- |
Sensitivity per Channel | S | - | - | -8.6 | DBm | 1 |
Damage Threshold(each channel) | POL | 4.5 | - | - | DBm | - |
Optical Return Loss | ORL | 26 | - | - | DB | - |
LOS De-Assert | LOSD | - | - | -11.6 | DBm | - |
LOS Assert | LOSA | -24 | - | 5 | DBm | - |
LOS Hysteresis | - | 0.5 | - | - | DB | - |
Note:1. Measured with PRBS 231-1 testpattern, 25.78125Gb/s;