Description
Features of QSFP MPO Transceiver
- Supports 41.2Gbps aggregate bit rates
- 3Gbps 850nm VCSEL transmitter and PIN receiver
- Maximum link length of 100m on OM3 MMF and 150m on OM4 MMF
- Single MPO receptacle
- Hot pluggableQSFP+ form factor
- Power dissipation < 1.5W
- All-metal housing for superior EMI performance
- RoHS6 compliant (lead free)
- Operating case temperature: Commercial: 0ºC to +70°C
QSFP-40G-SR4 Application
- 40GBASE-ER4
- InfiniBand QDR and DDR interconnects
Transceiver Standards
- Compliant with QSFP+ MSA
- Compliant with SFF-8636
- Compatible with IEEE802.3ba
40G SFP Module Optical Parameters
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Transmitter Section | ||||||
| Lane Centre Wavelength (range) | λC | 840 | 860 | nm | ||
| Spectral Width (RMS) | σ | 0.65 | nm | |||
| Average Optical Power per Lane | Pout | -7.6 | +2.4 | dBm | 1 | |
| OMA Power per Lane | OMA | -5.6 | 3 | dBm | 1 | |
| Laser Off Power per Lane | Poff | – | – | -30 | dBm | |
| Extinction Ratio | ER | 3 | – | – | dB | 2 |
| Relative Intensity Noise | RIN | – | – | -128 | dB/Hz | |
| Optical Return Loss Tolerance | – | – | 12 | dB | ||
| Transmitter eye mask definition
{X1, X2, X3, Y1, Y2, Y3} |
Compliant with IEEE802.3ba
{0.23 0.34, 0.43, 0.27, 0.35, 0.4} |
2 | ||||
| Receiver Section | ||||||
| Lane Center Wavelength (range) | λC | 840 | 860 | nm | ||
| Average Receiver Power per Lane | RXPX | -9.5 | 2.4 | dBm | 3 | |
| OMA Stressed Sensitivity per Lane | RXsens | -5.4 | dBm | 3 | ||
| Los Assert | LOSA | -30 | – | – | dBm | |
| Los Dessert | LOSD | – | – | -13 | dBm | |
| Los Hysteresis | LOSH | 0.5 | – | 5 | dB | |
| Overload per Lane | Pin-max | – | – | 2.4 | dBm | 3 |
| Receiver Reflectance | – | – | -12 | dB | ||
| Damage Threshold per Lane | – | – | 3.5 | dBm | ||
Notes:
- The optical power is launched into 50/125µm MMF.
- Measured with a PRBS 231-1test pattern @10.3125Gbps.
- Measured with a PRBS 231-1test pattern @10.3125Gbps, ER=3dB, BER <10-12.
Mechanical Dimension
QSFP-40G-SR4 Ordering Information
| Part Number | Product Description |
| YDQS40-8501M | 40Gbps QSFP+ SR4, 100m on MMF(OM3), MPO receptacle, 0ºC ~ +70ºC, With DDM. |
