The 100G QSFP28 LR4 optical receiver integrates receive path onto
one module. The receiver four lanes of optical data streams are
optically demultiplexed by an integrated optical demultiplexer.
Each data steam is recovered by a PIN photodetector and
transimpedance amplifier, retimed, and passed on to an output
driver. This module features a hot-pluggable electrical interface,
low power consumption, and 2-wire serial interface.
Features
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Max. | Unit | Note |
| Supply Voltage | Vcc | -0.5 | 3.6 | V | |
| Storage Temperature | TS | -40 | 85 | °C | |
| Relative Humidity | RH | 0 | 85 | % | |
| Rx Damage Threshold,per Lane | PRdmg | 5.5 | | dBm | |
Note: Stress in excess of the maximum absolute ratings can cause
permanent damage to the transceiver.
Recommended Operating Conditions
Electrical Characteristics (Top=0~70℃, Vcc=3.14~3.47V)
(Tested under recommended operating conditions,unless otherwise
noted)
| Parameter | Symbol | Min | Typ | Max | Unit | Notes |
| Receiver |
| Signaling rate per lane | DRPL | 25.78125 ± 100 ppm | Gb/s | |
| Differential data output swing | Vout,pp | 400 | | 800 | mV | |
| Eye width | Ew | 0.57 | | | UI | |
| Vertical eye closure | | | | 5.5 | dB | |
| Differential output return loss (min) | RLd(f) | 9.5 – 0.37f, 0.01≤f<8 4.75 – 7.4log10(f/14), 8 ≤f<19
| dB | |
Common to differential mode conver- sion return loss (min)
| RLdc(f) | 22-20(f/25.78), 0.01≤f<12.89 15-6(f/25.78), 12.89≤f<19
| dB | |
| Differential termination mismatch | Tm | | | 10 | % | |
| Transition time, 20% to 80% | Tr,Tf | 12 | | | ps | |
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 |
| Receiver |
| Receive Rate for Each Lane | | Gb/s | 25.78125 ±100 ppm | 1 |
| Four Lane Wavelength Range | λ1 | nm | 1294.53 | 1295.56 | 1296.59 | |
| λ2 | 1299.02 | 1300.05 | 1301.09 | |
| λ3 | 1303.54 | 1304.58 | 1305.63 | |
| λ4 | 1308.09 | 1309.14 | 1310.19 | |
| Overload Input Optical Power | Pmax | dBm | 5.5 | | | |
Average Receive Power for Each Lane | Pin | dBm | -10.6 | | 4.5 | 2,4 |
| Receiver Sensitivity(OMA)per lane | Psens1 | dBm | | | -10.6 | |
| Stressed Sensitivity(OMA) per lane | Psens2 | dBm | | | -6.8 | 3 |
| 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. Receiver consists of 4 photodetectors operating at 25.78Gb/s
each.
2. Minimum value is informative, equals min TxOMA with infinite ER
and max channel insertion loss.
3. SRS is measured with vertical eye closure penalty of 1.8 dB max,
J2 of 0.30 UI, and J9 of 0.47 UI.
4. Power value and power accuracy are with all channels on..
FAQ
Q1. Can I have a sample order for this product?
A: Yes, we welcome sample order to test and check quality. Mixed
samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-6 days, mass production time needs 1-2 weeks for
order quantity more than
Q3. Do you have any MOQ limit for sample order?
A: Low MOQ, 1pc for sample checking is available
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5
days to arrive. Airline and sea shipping are also optional.
