40G QSFP+ LR4 10Km 1310nm LC Optical Transceiver
The QSFP+ 40G LR4 RQ-40G-LR4 is a transceiver module designed for10km optical communication applications. The design is compliant to 40GBASE-LR4 of the IEEE P802.3ba standard. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data.
Absolute Maximum Ratings
| Parameter | Symbol | Min. | Typical | Max. | Unit |
| Storage Temperature | TS | -40 |
| +85 | °C |
| Supply Voltage | VCCT, R | -0.5 |
| 4 | V |
| Relative Humidity | RH | 0 |
| 85 | % |
Recommended Operating Environment
| Parameter | Symbol | Min. | Typical | Max. | Unit |
| Case operating Temperature | TC | 0 |
| +70 | °C |
| Supply Voltage | VCCT, R | +3.13 | 3.3 | +3.47 | V |
| Supply Current | ICC |
|
| 900 | mA |
| Power Dissipation | PD |
|
| 3 | W |
Electrical Characteristics(TOP = 0 to 70 °C, VCC= 3.13 to 3.47 Volts
| Parameter | Symbol | Min | Typ | Max | Unit | Note |
| Data Rate per Channel |
| - | 10.3125 | 11.2 | Gbps |
|
| Power Consumption |
| - | 2.5 | 3.5 | W |
|
| Supply Current | Icc |
| 0.75 | 1.0 | A |
|
| Control I/O Voltage-High | VIH | 2.0 |
| Vcc | V |
|
| Control I/O Voltage-Low | VIL | 0 |
| 0.7 | V |
|
| Inter-Channel Skew | TSK |
|
| 150 | Ps |
|
| RESETL Duration |
|
| 10 |
| Us |
|
| RESETL De-assert time |
|
|
| 100 | ms |
|
| Power On Time |
|
|
| 100 | ms |
|
| Transmitter | ||||||
| Single Ended Output Voltage Tolerance |
| 0.3 |
| 4 | V | 1 |
| Common mode Voltage Tolerance |
| 15 |
|
| mV |
|
| Transmit Input Diff Voltage | VI | 150 |
| 1200 | mV |
|
| Transmit Input Diff Impedance | ZIN | 85 | 100 | 115 |
|
|
| Data Dependent Input Jitter | DDJ |
| 0.3 |
| UI |
|
| Receiver | ||||||
| Single Ended Output Voltage Tolerance |
| 0.3 |
| 4 | V |
|
| Rx Output Diff Voltage | Vo | 370 | 600 | 950 | mV |
|
| Rx Output Rise and Fall Voltage | Tr/Tf |
|
| 35 | ps | 1 |
| Total Jitter | TJ |
| 0.3 |
| UI |
|
Note:
1. 20～80%
Optical Parameters(TOP = 0 to 70°C, VCC = 3.0 to 3.6 Volts)
| Parameter | Symbol | Min | Typ | Max | Unit | Ref. |
| Transmitter | ||||||
|
Wavelength Assignment | L0 | 1264.5 | 1271 | 1277.5 | nm |
|
| L1 | 1284.5 | 1291 | 1297.5 | nm |
| |
| L2 | 1304.5 | 1311 | 1317.5 | nm |
| |
| L3 | 1324.5 | 1331 | 1337.5 | nm |
| |
| Side-mode Suppression Ratio | SMSR | 30 | - | - | dB |
|
| Total Average Launch Power | PT | - | - | 4 | dBm |
|
| Average Launch Power, each Lane |
| -6 | - | 1 | dBm |
|
| Difference in Launch Power between any two Lanes (OMA) |
| - | - | 4 | dB |
|
| Optical Modulation Amplitude, each Lane | OMA | -5 |
| +2 | dBm |
|
| Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane |
| -5 | - |
| dBm |
|
| TDP, each Lane | TDP |
|
| 2.3 | dB |
|
| Extinction Ratio | ER | 3.5 | - | - | dB |
|
| Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3} |
| {0.25, 0.4, 0.45, 0.25, 0.28, 0.4} |
|
|
|
|
| Optical Return Loss Tolerance |
| - | - | 20 | dB |
|
| Average Launch Power OFF Transmitter, each Lane | Poff |
|
| -30 | dBm |
|
| Relative Intensity Noise | Rin |
|
| -128 | dB/HZ | 1 |
| Optical Return Loss Tolerance |
| - | - | 12 | dB |
|
| Receiver | ||||||
| Damage Threshold | THd | 5 |
|
| dBm | 1 |
| Average Power at Receiver Input, each Lane | R | -14 |
| 3 | dBm |
|
| Receive Electrical 3 dB upper Cut off Frequency, each Lane |
|
|
| 12.3 | GHz |
|
| RSSI Accuracy |
| -2 |
| 2 | dB |
|
| Receiver Reflectance | Rrx |
|
| -26 | dB |
|
| Receiver Power (OMA), each Lane |
| - | - | 3.5 | dBm |
|
| Receive Electrical 3 dB upper Cutoff Frequency, each Lane |
|
|
| 12.3 | GHz |
|
| LOS De-Assert | LOSD |
|
| -15 | dBm |
|
| LOS Assert | LOSA | -25 |
|
| dBm |
|
| LOS Hysteresis | LOSH | 0.5 |
|
| dB |
|
Note
1. 12dB Reflection
Order information
| Product Number | Data Rate(Gb/s) | Wavelength(nm) | Reach(km) | LD | Tx Power(dBm) | PD | Rx Sens(dBm) | Temperature(℃) |
| RQ-40G-LR4 | 40 | CWDM4 | 10 | DFB | -6~1 | PIN | <-14 | 0~70 |
