Recommended Operating Conditions
Parameter | Symbol | Min | Typical | Max | Unit |
Operating Case Temperature | Standard Tc | 0 | 25 | 70 | °C |
Storage Temperature | Ts | 0 |
| 70 | °C |
Relative Humidity | RH | 5 |
| 95 | % |
Data Rate |
|
|
| 25.78 | Gbps |
Power Dissipation | PD |
|
| 0.02 | W |
High Speed Characteristics
Parameter | Symbol | Min | Typ | Max | Units | Notes |
Differential Impedance | Zd | 90 | 100 | 110 | Ω |
|
Differential Input Return Loss |
SDDXX | <-12+2* SQRT (f) with f in GHz | dB | 0.01~4.1GHz | ||
<-6.3+13* Log10/(f/5.5) with f in GHz |
dB |
4.1~19GHz | ||||
Common Mode Output Return Loss |
SCCXX | < -7+1.6*f with f in GHz | dB | 0.01~12.89GHz | ||
|
| -3 | dB | 12.89~19GHz | ||
Difference Waveform Distortion Penalty | dWDPc |
|
| 6.75 | dB |
|
VMA Loss | L |
|
| 4.4 | dB
|
|
VMA Loss to Crosstalk Ratio | VCR | 32.5 |
|
| dB |
Part Number | Description | Cable Length (m) | AWG |
QSFP28-100G-DAC0.5M | QSFP28 to QSFP28 | 0.5 | 30 |
QSFP28-100G-DAC1M | QSFP28 to QSFP28 | 1 | 30 |
QSFP28-100G-DAC2M | QSFP28 to QSFP28 | 2 | 30 |
QSFP28-100G-DAC3M | QSFP28 to QSFP28 | 3 | 28/30 |
QSFP28-100G-DAC4M | QSFP28 to QSFP28 | 4 | 28 |
QSFP28-100G-DAC5M | QSFP28 to QSFP28 | 5 | 26 |
QSFP28-100G-DAC7M | QSFP28 to QSFP28 | 7 | 24 |