100G QSFP28 DAC
QSFP28 100g direct attach cableare compliant with the SFF-8665 specifications. Various choices of wire gauge are available from 30 to 26 AWG with various choices of cable length (up to 5m).
Features of 100G QSFP28 Direct Attach Cable
Up to 25.78Gbps data rate per channel
Up to 5m transmission
Hot-pluggable QSFP+ 38 PIN footprint
Compatible to SFF-8665
Compliant with IEEE 802.3bj
Single 3.3V power supply
Temperature Range: 0~ 70 °C
RoHS compliant
Applications of 100G QSFP28 Direct Attach Cable
Low EMI radiation switches, servers and routers
Data center networks
Storage area networks
High performance computing
Telecommunication and wireless infrastructure
Medical diagnostics and networking
Test and measurement equipment
Specifications of 100G QSFP28 Direct Attach Cable
Mechanical Specifications | Ordering Information
|
Parameter |
Minimum |
Typical |
Maximum |
Unit |
|
Cable Diameter (26AWG) |
- |
- |
Inches |
|
|
Bend Radius (26AWG) |
- |
- |
Inches |
|
|
Cable Diameter (28AWG) |
- |
- |
Inches |
|
|
Bend Radius (28AWG) |
- |
- |
Inches |
|
|
Cable Diameter (30 AWG) |
- |
- |
Inches |
|
|
Bend Radius (30 AWG) |
- |
- |
Inches |
|
|
Within Pair Skew |
- |
- |
100 |
ps/10m |
|
Cable Insertion Loss |
- |
- |
dB/5m |
|
|
Bulk Cable Time Delay |
- |
- |
ns/m |
|
|
Bulk Cable Impedance |
95 |
100 |
105 |
Ohms |
|
Insertion Force |
- |
- |
40 |
N |
|
Withdrawal Force |
- |
- |
30 |
N |
|
Retention Force |
90 |
- |
- |
N |
|
Durability |
50 Cycles |
- |
- |
- |
Recommended Operation Condition of 100G QSFP28 Direct Attach Cable
|
Parameter |
Symbol |
Min |
Max |
Unit |
|
Operating Case Temperature |
Topc |
0 |
70 |
degC |
|
Storage Temperature |
Tst |
-40 |
85 |
degC |
|
Relative Humidity (non-condensation) |
RS |
35 |
60 |
% |
|
Supply Voltage |
VCC3 |
V |
||
|
Voltage on LVTTL Input |
Vilvttl |
-0.3 |
VCC3 +0.2 |
V |
|
Power Supply Current |
ICC3 |
15 |
mA |
|
|
Total Power Consumption |
Pd |
- |
W |
Notes:
Stress or conditions exceed the above range may cause permanent damage to the device.
This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not applied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Frequency Domain of 100G QSFP28 Direct Attach Cable
|
Item |
Test Parameter |
|
|
1 |
Differential Insertion Loss (SDD12) |
Maximum insertion loss at 12.8906Ghz Minimum insertion loss at 12.8906Ghz@8dB |
|
2 |
Differential Insertion Loss (SDD21) |
Maximum insertion loss at Minimum insertion loss at 12.8906Ghz@8dB |
|
3 |
Differential Return Loss (SDD22) |
-16.5+2xSQRT(f) @ 0.01 to 4.1GHz -10.66+14xLog10(f/5.5) to 19GHz |
|
4 |
Differential Return Loss (SDD11) |
-16.5+2xSQRT(f) @ 0.01 to 4.1GHz -10.66+14xLog10(f/5.5) to 19GHz |
|
5 |
Common Mode Reflection (SCC22) |
-2dB @ 0.01 to 19GHz |
|
6 |
Common Mode Reflection (SCC11) |
-2dB @ 0.01 to 19GHz |
|
7 |
Common Mode Conversion (SCD22) |
-22+(20/25.78)*(f) @ 0.01 to 12.89GHz -15+(6/25.78)*(f) @ 12.9 to 19GHz |
|
8 |
Common Mode Conversion (SCD11) |
-22+(20/25.78)*(f) @ 0.01 to 12.89GHz -15+(6/25.78)*(f) @ 12.9 to 19GHz |
|
9 |
Differential to Common Mode Conversion Loss (SCD12) |
-10dB @ 0.01 to 12.89GHz -27+(29/22)*(f) @ 12.9 to 15.7GHz -6.3dB @ 15.71 to 19GHz |
|
10 |
Differential to Common Mode Conversion Loss (SCD21) |
-10dB @ 0.01 to 12.89GHz -27+(29/22)*(f) @ 12.9 to 15.7GHz -6.3dB @ 15.71 to 19GHz |
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