Description
Features
- Supports 24.3Gbps to 28.1Gbps bit rates
- 850nm VCSEL Laser and PIN photo-detector
- Up to 70m on 50/125µmMMF(OM3)
- Up to 100mon 50/125µm MMF(OM4)
- Duplex LC receptacle optical interface compliant
- Hot pluggable fiber transceivers
- All-metal housing for superior EMI performance
- RoHS6 compliant (lead free)
- Operating case temperature:
SFP 25G SR S Application
- 25G SR
- 100G SR4 fan out to 4x25GE SR
- eCPRI
Standards
- Compliant with INF-8431
- Compliant with SFF-8472
- Compatible with IEEE802.3by
Optical Parameters
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Transmitter Section | ||||||
| Centre Wavelength | λc | 840 | – | 860 | nm | |
| Spectral Width (RMS) | σ | 0.6 | nm | |||
| Average Optical Power (avg.) | Pout | -6.7 | +2.4 | dBm | 1 | |
| Laser Off Power | Poff | – | – | -30 | dBm | |
| Extinction Ratio | ER | 2 | – | – | dB | 2 |
| Relative Intensity Noise | RIN | – | – | -130 | dB/Hz | |
| Optical Return Loss Tolerance | – | – | 12 | dB | ||
| Vertical Eye Closure Penalty | CEVPQ | 3.13 | dB | |||
| Output Optical Eye | Compliant with IEEE802.3by eye masks when filtered | 2 | ||||
| Receiver Section | ||||||
| Receiver Center Wavelength | λc | 840 | – | 860 | nm | |
| Receiver in Average Power | -10 | 2 | dBm | |||
| Receiver sensitivity(OMA) | Sen | -10 | dBm | 3 | ||
| Los Assert | LOSA | -26 | – | – | dBm | |
| Los Dessert | LOSD | – | – | -13 | dBm | |
| Los Hysteresis | LOSH | 0.5 | – | 5 | dB | |
| Overload | Pin-max | – | – | 2 | dBm | 3 |
| Receiver Reflectance | – | – | -12 | dB | ||
| Receiver Power (damage) | – | – | 3 | dBm | ||
Notes:
- The optical power is launched into 50/125µm MMF.
- Measured with a PRBS 231-1test pattern @25.78Gbps.
- 3. Measured with a PRBS 231-1test pattern @78bps, ER=4.8dB, BER <10–5.
Mechanical Dimension
Ordering Information
| Part Number | Product Description |
| YDSP28-8501M | 850nm, 25Gbps, 100m (MMF OM4), Duplex LC SFP28 Transceiver, -5ºC ~ +70ºC, With DDM. |
