China 4X25.78125g Qsfp28 Psm4, MPO Connector, 2km Over Single Mode Fiber, Find details about China Optical Transceiver, Transceiver from 4X25.78125g Qsfp28 Psm4, MPO Connector, 2km Over Single Mode Fiber
Parameter Test Point Min Typical Max Unit Notes | ||||||
Differential input impedance | Zin | 90 | 100 | 110 | ohm | |
Differential Output impedance | Zout | 90 | 100 | 110 | ohm | |
Differential input voltage amplitude | ΔVin | 300 | 1100 | mVp-p | ||
Differential output voltage amplitude | ΔVout | 300 | 800 | mVp-p | ||
Input Logic Level High | VIH | 2.0 | VCC | V | ||
Input Logic Level Low | VIL | 0 | 0.8 | V | ||
Output Logic Level High | VOH | VCC-0.5 | VCC | V | ||
Output Logic Level Low | VOL | 0 | 0.4 | V |
Parameter Symbol Min Typical Max Unit Notes | ||||||
Transmitter | ||||||
Center Wavelength | λC | 1295 | 1325 | nm | 1 | |
RMS Spectral Width | λrms | - | 3.5 | nm | 1 | |
Average Launch Power, each lane | PAVG | -6 | -0.5 | +2.0 | dBm | |
Optical Modulation Amplitude (OMA) | POMA | -5 | -0.5 | +2.2 | dBm | 1 |
Difference in Launch Power between any two lanes | Ptx,diff | 5.0 | dB | |||
Transmitter and dispersion penalty (TDP), each lane (max) | TDP | 2.9 | dBm | 1 | ||
Rise/Fall Time | Tr/Tf | 30 | ps | |||
Extinction Ratio | ER | 3.5 | dB | |||
Relative Intensity Noise | Rin | -128 | dB/Hz |
Parameter Symbol Min Max Unit Notes | |||||
Temperature monitor absolute error | DMI_Temp | -3 | 3 | degC | Over operating temp |
Supply voltage monitor absolute error | DMI _VCC | -0.1 | 0.1 | V | Full operating range |
Channel RX power monitor absolute error | DMI_RX | -3 | 3 | dB | Per channel |
Channel Bias current monitor | DMI_Ibias | -10% | 10% | mA | Per channel |
Temperature monitor absolute error | DMI_Temp | -3 | 3 | degC | Over operating temp |