Ascent ’s QSFP 28-100 G-SR01 is a 100 Gb/s transceiver module designed for optical communication applications compliant to IEEE 802.3bm standards. The optical transmitter portion of the transceiver incorporates a 4-channel VCSEL (Vertical Cavity Surface Emitting Laser) array, a 4-channel input buffer and laser driver, diagnostic monitors, control and bias blocks. For module control, the control interface incorporates a Two Wire Serial interface of clock and data signals. Diagnostic monitors for VCSEL bias, module temperature, transmitted optical power, received optical power and supply voltage are implemented and results are available through the TWS interface. The optical receiver portion of the transceiver incorporates a 4-channel PIN photodiode array, a 4‑channel TIA array, a 4-channel output buffer, diagnostic monitors, and control and bias blocks. Diagnostic monitors for optical input power are implemented and results are available through the TWS interface. The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.
· Hot pluggable QSFP28 MSA form factor
· Compliant to Ethernet 100GBASE-SR4
· Supports 103.1 Gb/s aggregate bit rate
· Up to 100 m reach with OM4 multimode fiber
· Up to 70 m reach with OM3 multimode fiber
· Single +3.3V power supply
· Operating case temperature: 0 °C to 70 °C
· <2.0 W power dissipation
· High reliability 850 nm VCSEL technology
· Standard 12 lane with MPO male connector
· Compliant with SFF-8636
· RoHS and FCC compliant
Absolute Maximum Ratings
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Storage Temperature | TS | ‑40 | 85 | °C | ||
Relative Humidity | RH | 5 | 95 | % | ||
Power Supply Voltage | Vcc | ‑0.3 | 4.0 | V | ||
Signal Input Voltage | Vcc‑0.3 | Vcc+0.3 | V |
Recommended Operating Conditions
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Case Operating Temperature | Tcase | 0 | - | 70 | °C | Without air flow |
Power Supply Voltage | Vcc | 3.14 | 3.3 | 3.46 | V | |
Power Supply Current | Icc | - | 600 | mA | ||
Data Rate | BR | 25.78125 | Gbps | Each channel | ||
Transmission Distance | TD | - | 100 | m | OM4 | |
TD | - | 70 | m | OM3 |
Note:
100G Ethernet &100GBASE-SR4 and ITU-T OTU4 has different register setting, not auto-negotiation
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Transmitter | ||||||
Case Operating Temperature | λ0 | 840 | 860 | nm | ||
Average Launch Power each lane | -8.4 | 2.4 | dBm | |||
Spectral Width (RMS) | σ | 0.6 | nm | |||
Optical Extinction Ratio | ER | 3 | dB | |||
Optical Return Loss Tolerance | ORL | 12 | dB | |||
Output Eye Mask | Compliant with IEEE 802.3bm-2015 | 1 | ||||
Receiver | ||||||
Receiver Wavelength | λin | 840 | 860 | nm | ||
Rx Sensitivity per lane | RSENS | -10.3 | dBm | 2 | ||
LOS De-Assert | LOSD | -30 | dBm | |||
LOS Assert | LOSA | -12 | dBm | |||
Input Saturation Power (Overload) | Psat | 2.4 | dBm | |||
Receiver Reflectance | Rr | -12 | dB |
1. Hit ratio 1.5*10-5 hits per sample
2. Measured with a PRBS 231-1 test pattern, @ 25.78 Gb/s, BER<10-12.
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Supply Voltage | Vcc | 3.14 | 3.3 | 3.46 | V | |
Supply Current | Icc | 600 | mA | |||
Transmitter | ||||||
Input Differential Impedance | Rin | 100 | Ω | 1 | ||
Differential Data Input Swing | Vin, pp | 180 | 1000 | mV | ||
Single Ended Input Voltage Tolerance | VinT | -0.3 | 4.0 | V | ||
Receiver | ||||||
Differential Data Output Swing | Vout, pp | 300 | 850 | mV | 2 | |
Single-Ended Output Voltage | -0.3 | 4.0 | V |
Notes:
1. Connected directly to TX data input pins. AC coupled there after.
2. Into 100 Ω differential termination.
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100G QSFP28 ZR4 1310 nm 80 km
100G QSFP28 ER4 1310 nm 40 km
100G QSFP28 LR4 1310 nm 10 km
100G QSFP28 LR Single λ 10 km
100G QSFP28 CWDM4 1310 nm 2 km
100G QSFP28 PSM4 1310 nm 2 km
100G QSFP28 SR01 BIDI MMF 850nm 100m
100G QSFP28 FR Single λ 1310 nm 2 km
100G QSFP28 DR Single λ 500 m
100G CFP2 ER4 40 km
100G CFP2 LR4 10 km
100G CFP ER4 40 km
100G CFP LR4 10 km