- Specification -
Optical Characteristics (Top=0~70℃, Vcc=3.14~3.47V)
(Tested under recommended operating conditions,unless otherwise noted)
Parameter | Symbol | Unit | Min | Typ | Max | Notes |
Transmitter |
Signaling rate, each lane | | Gb/s | 25.78125 ±100 ppm | 1 |
Four Lane Wavelength Range | λ1 | nm | 1263 | 1270 | 1277 | |
λ2 | 1283 | 1290 | 1297 | |
λ3 | 1303 | 1310 | 1317 | |
λ4 | 1323 | 1330 | 1337 | |
Total launch power | Pout | dBm | | | 10.5 | |
Average launch power, each lane | Pavg | dBm | -4.5 | | 2.5 | 2,7 |
Extinction ratio | ER | dB | 4 | | | |
Side-mode suppression ratio | SMSR | dB | 30 | | | |
Average launch power of OFF transmitter, per lane | POFF | dBm | | | -30 | |
Optical return loss tolerance | | dB | | | 20 | |
Transmitter reflectance | | dB | | | –12 | |
Transmitter eye mask {X1, X2, X3, Y1, Y2, Y3} | | | {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} | 3 |
Receiver |
Receive Rate for Each Lane | | Gb/s | 25.78125 ±100 ppm | 4 |
Four Lane Wavelength Range | λ1 | nm | 1263 | 1270 | 1277 | |
λ2 | 1283 | 1290 | 1297 | |
λ3 | 1303 | 1310 | 1317 | |
λ4 | 1323 | 1330 | 1337 | |
Overload Input Optical Power | Pmax | dBm | 5.5 | | | |
Average Receive Power for Each Lane | Pin | dBm | -11.2 | | 2.5 | 5,7 |
Receiver Sensitivity(OMA)per lane | Psens1 | dBm | | | -11.2 | |
Stressed Sensitivity(OMA) per lane | Psens2 | dBm | | | -6.8 | 6 |
Return Loss | RL | dB | -26 | | | |
Receiver Electrical 3dB upper cutoff frequency, per lane | | GHz | | | 31 | |
Los De-Assert | Pd | dBm | | | -11.6 | |
Los Assert | Pa | dBm | -23.6 | | | |
Loss Hysteresis | Pd-Pa | dBm | | 2 | | |
Notes:
1. Transmitter consists of 4 lasers operating at 25.78Gb/s each.
2. Minimum value is informative.
3. Hit ratio 5x10-5.
4. Receiver consists of 4 photodetectors operating at 25.78Gb/s each.
5. Minimum value is informative, equals min TxOMA with infinite ER and max channel insertion loss.
6. SRS is measured with vertical eye closure penalty of 1.8 dB max, J2 of 0.30 UI, and J9 of 0.47 UI.
7. Power value and power accuracy are with all channels on..
Ordering Information
Part Number | Description |
XYT--100G_QSFP28 CWDM4 | QSFP28 CWDM4 10km, 0~70℃, with DDM, Low power |
Product Features
Duplex LC receptacle optical interface
Single +3.3V power supply
Hot-pluggable QSFP28 MSA form factor
4x25G Electrical Serial Interface
Compliant with 4x28G(CEI-28G-VSR)
AC coupling of CML signals
Transmitter: cooled 4x25Gb/s CWDM TOSA (1270，1290，1310，1330nm)
Receiver: 4x25Gb/s PIN ROSA
Low power dissipation(Max:3.5W)
Built in digital diagnostic function
Operating case temperature range:0℃ to 70℃
Compliant with 100GBASE-LR4
I2C Communication Interface
Applications
100GBASE-LR4
Infiniband QDR and DDR interconnects
100G Datacom connections
Standards
Compliant with IEEE 802.3ba
Compliant with QSFP28 MSA hardware specifications
Compliant with RoHS
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