PRODDUCTS

Shenzhen JHA Technology Co., Ltd is one of the leading manufacturers of hardened Ethernet, PoE, and fiber connectivity products specifically designed for harsh and demanding environments.

PRODUCTS

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100G QSFP28 Direct Attach Cable (DAC) JHA-QSFP28-100G-PCU


    • Compliant with SFF- 8665
    • Up to 28.3125Gbps data rate per channel
    • Up to 5m transmission
    • Up to 5m transmission
    • Single 3.3V power supply
    • RoHS compliant
  • Applications

    ◊ 100G Ethernet

Classification

Network Cabling

DAC(Direct Attach Cable)


  • DESCRIPTION
  • DIMENSION
  • ORDER INFORMATION
  • DOWNLOAD
  • APPLICATIONS
  • General Description

    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).

     

    Benefits

    ◊ Cost-effective copper solution

    ◊ Lowest total system power solution

    ◊ Lowest total system EMI solution

    ◊ Optimized design for Signal Integrity

     

    Specification:

    Pin Function Definition

    Pin

    Logic

    Symbol

    Description

    1

     

    GND

    Ground

    2

    CML-I

    Tx2n

    Transmitter Inverted Data Input

    3

    CML-I

    Tx2p

    Transmitter Non-Inverted Data Input

    4

     

    GND

    Ground

    5

    CML-I

    Tx4n

    Transmitter Inverted Data Input

    6

    CML-I

    Tx4p

    Transmitter Non-Inverted Data Input

    7

     

    GND

    Ground

    8

    LVTTL-I

    ModSelL

    Module Select

    9

    LVTTL-I

    ResetL

    Module Reset

    10

     

    Vcc Rx

    +3.3V Power Supply Receiver

    11

    LVCMOS-

    I/O

    SCL

    2-wire serial interface clock

    12

    LVCMOS-

    I/O

    SDA

    2-wire serial interface data

    13

     

    GND

    Ground

    14

    CML-O

    Rx3p

    Receiver Non-Inverted Data Output

    15

    CML-O

    Rx3n

    Receiver Inverted Data Output

    16

     

    GND

    Ground

    17

    CML-O

    Rx1p

    Receiver Non-Inverted Data Output

    18

    CML-O

    Rx1n

    Receiver Inverted Data Output

    19

     

    GND

    Ground

    20

     

    GND

    Ground

    21

    CML-O

    Rx2n

    Receiver Inverted Data Output

    22

    CML-O

    Rx2p

    Receiver Non-Inverted Data Output

    23

     

    GND

    Ground

    24

    CML-O

    Rx4n

    Receiver Inverted Data Output

    25

    CML-O

    Rx4p

    Receiver Non-Inverted Data Output

    26

     

    GND

    Ground

    27

    LVTTL-O

    ModPrsL

    Module Present

    28

    LVTTL-O

    IntL

    Interrupt

    29

     

    Vcc Tx

    +3.3V Power supply transmitter

    30

     

    Vcc1

    +3.3V Power supply

    31

    LVTTL-I

    LPMode

    Low Power Mode

    32

     

    GND

    Ground

    33

    CML-I

    Tx3p

    Transmitter Non-Inverted Data Input

    34

    CML-I

    Tx3n

    Transmitter Inverted Data Input

    35

     

    GND

    Ground

    36

    CML-I

    Tx1p

    Transmitter Non-Inverted Data Input

    37

    CML-I

    Tx1n

    Transmitter Inverted Data Input

    38

     

    GND

    Ground

    1223 (1) General Product Characteristics

    QSFP+ DAC Specifications  
    Number of Lanes Tx & Rx
    Channel Data Rate 28.3125 Gbps
    Operating Temperature 0 to + 70°C
    Storage Temperature -40 to + 85°C
    Supply Voltage 3.3 V nominal
    Electrical Interface 38 pins edge connector
    Management Interface Serial, I2C

    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

     

    Mechanical Specifications

    The connector is compatible with the SFF-8665 specificatio

    1223 (2)

    Length (m) Cable AWG

    1

         30

    2

        30

    3

        30

    5

    26

    Regulatory Compliance

    Feature

    Test Method Performance
    Electrostatic Discharge (ESD) to the Electrical Pins  MIL-STD-883C Method 3015.7  Class 1(>2000 Volts)
    Electromagnetic Interference(EMI) FCC Class B Compliant with Standards
    CENELEC EN55022 Class B
    CISPR22 ITE Class B
     RF Immunity(RFI)  IEC61000-4-3 Typically Show no Measurable Effect from a 10V/m Field Swept from 80 to 1000MHz
    RoHS Compliance RoHS Directive 2011/65/EU and it’s Amendment Directives 6/6 RoHS 6/6 compliant

  • Applications

    ◊ 100G Ethernet

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