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100G QSFP28 Direct Attach Cable

100G QSFP28 Direct Attach Cable

QSFP28 Direct Attach Cables are 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)

-

0.220

-

Inches

Bend Radius (26AWG)

1.102

-

-

Inches

Cable Diameter (28AWG)

-

0.185

-

Inches

Bend Radius (28AWG)

0.925

-

-

Inches

Cable Diameter (30 AWG)

-

0.181

-

Inches

Bend Radius (30 AWG)

0.906

-

-

Inches

Within Pair Skew

-

-

100

ps/10m

Cable Insertion Loss

-

15.43

-

dB/5m

Bulk Cable Time Delay

-

-

5.2

ns/m

Bulk Cable Impedance

95

100

105

Ohms

Insertion Force

-

-

40

N

Withdrawal Force

-

-

30

N

Retention Force

90

-

-

N

Durability

50 Cycles

-

-

-


P/N

Length

Data Rate

AWG

Length Tolerance

TSQS-PC1HG-01M

1M

100G

28 / 30

+3.5/-3.5cm

TSQS-PC1HG-02M

2M

100G

28 / 30

+3.5/-3.5cm

TSQS-PC1HG-03M

3M

100G

28 / 30

+4/-4cm

TSQS-PC1HG-05M

5M

100G

26

+6/-6cm


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

3.135

3.465

V

Voltage on LVTTL Input

Vilvttl

-0.3

VCC3  +0.2

V

Power Supply Current

ICC3


15

mA

Total Power Consumption

Pd

-

0.05

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

IEEE802.3bj Specification

1

Differential Insertion Loss (SDD12)

Maximum insertion loss at 12.8906Ghz @22.48dB

Minimum insertion loss at 12.8906Ghz@8dB

2

Differential Insertion Loss (SDD21)

Maximum insertion loss at 12.8906Ghz@22.48dB

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) @4.1 to 19GHz

4

Differential Return Loss (SDD11)

-16.5+2xSQRT(f) @ 0.01 to 4.1GHz

-10.66+14xLog10(f/5.5) @4.1 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


Pin Definition of 100G QSFP28 Direct Attach Cable

Pin

Symbol

Name/Description

1

GND

Ground

2

Tx2n

Transmitter Inverted Data Input

3

Tx2p

Transmitter Non-Inverted Data Input

4

GND

Ground

5

Tx4n

Transmitter Inverted Data Input

6

Tx4p

Transmitter Non-Inverted Data Input

7

GND

Ground

8

ModSelL

Module Select

9

ResetL

Module Reset

10

Vcc Rx

+3.3 V Power supply receiver

11

SCL

2-wire serial interface clock

12

SDA

2-wire serial interface data

13

GND

Ground

14

Rx3p

Receiver Non-Inverted Data Output

15

Rx3n

Receiver Inverted Data Output

16

GND

Ground

17

Rx1p

Receiver Non-Inverted Data Output

18

Rx1n

Receiver Inverted Data Output

19

GND

Ground

20

GND

Ground

21

Rx2n

Receiver Inverted Data Output

22

Rx2p

Receiver Non-Inverted Data Output

23

GND

Ground

24

Rx4n

Receiver Inverted Data Output

25

Rx4p

Receiver Non-Inverted Data Output

26

GND

Ground

27

ModPrsL

Module Present

28

IntL

Interrupt

29

Vcc Tx

+3.3 V Power supply transmitter

30

Vcc1

+3.3 V Power Supply

31

LPMode

Low Power Mode

32

GND

Ground

33

Tx3p

Transmitter Non-Inverted Data Input

34

Tx3n

Transmitter Inverted Data Input

35

GND

Ground

36

Tx1p

Transmitter Non-Inverted Data Input

37

Tx1n

Transmitter Inverted Data Input

38

GND

Ground



Pin Descriptions of 100G QSFP28 Direct Attach Cable

Pin-Descriptions.jpg


Mechanical Dimensions of 100G QSFP28 Direct Attach Cable

The connector is compatible with the SFF-8665 specification.

Mechanical-Dimensions.jpg

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