The QSFP28-100G-SR4 is a transceiver module designed for 100m optical communication applications. The design is compliant to 100GbASE-SR4 of the IEEE 802.3-2012 Clause 88 standard IEEE 802.3bm CAUI-4 chip to module electrical standard ITU-T G.959.1-2012-02 standard .The module converts 4 inputs channels (ch) of 25.78Gbps to 27.95Gbps electrical data to 4 lanes optical signals, and multiplexes them into a single channel for 100Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 100Gb/s input into 4 lanes signals,
and converts them to 4 lanes output electrical data.
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Parameter Symbol Min. Max Unit
Storage Temperature TSTG - -40 85 °C
Operating Case Temperature TC 0 70 °C
Power Supply Voltage VCC 3.1 3.5 V
Total Power Supply Current Icc - 500 mA
Recommended Operating Conditions:
Parameter Symbol Min. Typ. Max. Units Notes
Optical Transmitter Power P0 +3 - +7 dBm
Optical Transmitter Power off POFF - - -39 dBm
Optical Transmitter Power off POFF - - -39 dBm
Output Center Wavelength Λ 1480 - 1500 nm
Output Spectrum Width ∆λ - - 1.0 nm
Side Mode Suppression Ratio SMSR 30 - - dB 1
Extinction Ratio ER 8.2 - - dB
Optical Rise Time 160 - - 160 ps
Optical Fall Time - - - 160 ps
Optical Eye Diagram Compliant with ITU-T G.984.2 Mask
Tolerence to Tx Back Reflection - -15 - - db
Data Rate - - 2.488 - Gb/s
Differential Input Voltage VPP 300 - 1200 Mv
Differential Input Impedance ZIN 80 100 120 ohm
Tx_fault Output Voltage- High VIH 2.4 - - V
Tx_fault Output Voltage- Low VIL - - 0.4 V
Tx_Dis Input Voltage- High VIH 2.0 - - V
Tx_Dis Input Voltage- Low VIL - - 0.8 V
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