Hybrid Passive Copper 100GE QSFP28 to 4x 25GE SFP28

Hybrid Passive Copper 100GE QSFP28 to 4x 25GE SFP28

Short Description:

100GE QSFP28 to 4x 25GE SFP28 Hybrid Passive cable.


  • Payment Terms: Paypal,western union,L/C,D/A,D/P,T/T
  • Description

    Specification

    Application

    Order information

    Questions&Comments

    Product Tags

    The 100GE QSFP28 to 4x 25GE SFP28 Passive cable assemblies are high performance,cost effective for SFP28 and QSFP28 equipment interconnects . The Hybrid cables are compliant with SFF-8402 and SFF-8665 specifications.  It is offer a low power consumption,short reach interconnect applications. The cable each lane is capable of transmitting data at rates up to 25Gb/s, providing an aggregated rate of 100Gb/s

    Features

    • Supporting 100 Gbps to 4 x 25 Gbps
    • Support data rates : 25.78Gb/s (per channel)
    • IEEE 802.3bj 100GEBASE-CR4 and P802.3by compliant
    • Compatible to SFP28 MSA and QSFP28 MSA
    • Compatible to SFF-8402, SFF-8432 and SFF8665
    • Maximum aggregate data rate: 100 Gb/s (4 x 25Gb/s)
    • High-Density QSFP28 38-PIN and 4x SFP28 20-PIN Connector
    • Temperature Range: 0~ 70 °C
    • Copper link length up to 3m
    • Power Supply :+3.3V
    • Low crosstalk
    • I2C based two-wire serial interface for EEPROM signature which can be customized
    • Operating Temperature: 0~ 70 °C
    • ROHS Compliant

    Recommended Operating Conditions

    Parameter

    Symbol

    Min

    Typical

    Max

    Unit

    Storage Ambient Temperature

    -40

    +85

    °C

    Operating Case Temperature

    Tc

    0

    +70

    °C

    Power Supply Voltage

    VCC3

    3.14

    3.3

    3.47

    V

     

    High Speed Characteristics

    Parameter

    Symbol

    Min

    Typical

    Max

    Unit

    Note

    Differential Impedance

    RIN,P-P

    90

    110

    Ώ

    Insertion loss

    SDD21

    22.48

    dB

    At 12.8906 GHz

    Differential Return Loss

    SDD11

    See 1

    dB

    At 0.05 to 4.1 GHz

    SDD22

    See 2

    dB

    At 4.1 to 19 GHz

    Common-mode to

    common-mode

    output return loss

    SCC11

    2

    dB

    At 0.2 to 19 GHz

    SCC22

    Differential to common-mode

    return loss

    SCD11

    See 3

    dB

    At 0.01 to 12.89 GHz

    SCD22

    See 4

    At 12.89 to 19 GHz

    Differential to common Mode

    Conversion Loss

    SCD21

    10

    dB

    At 0.01 to 12.89 GHz

    See 5

    At 12.89 to 15.7 GHz

    6.3

    At 15.7 to 19 GHz

    Channel Operating Margin

    COM

    3

    dB

    Notes:

    1. Reflection Coefficient given by equation SDD11(dB) < 16.5 – 2 × SQRT(f ), with f in GHz

    2. Reflection Coefficient given by equation SDD11(dB) < 10.66 – 14 × log10(f/5.5), with f in GHz

    3. Reflection Coefficient given by equation SCD11(dB) < 22 – (20/25.78)*f, with f in GHz

    4. Reflection Coefficient given by equation SCD11(dB) < 15 – (6/25.78)*f, with f in GHz

    5. Reflection Coefficient given by equation SCD21(dB) < 27 – (29/22)*f, with f in GHz

    QSFP28 Pin Descriptions

    Pin

    Logic

    Symbol

    Name/Description

    Notes

    1

    GND

    Ground

    1

    2

    CML-I

    Tx2n

    Transmitter Inverted Data Input

    3

    CML-I

    Tx2p

    Transmitter Non-Inverted Data Input

    4

    GND

    Ground

    1

    5

    CML-I

    Tx4n

    Transmitter Inverted Data Input

    6

    CML-I

    Tx4p

    Transmitter Non-Inverted Data Input

    7

    GND

    Ground

    1

    8

    LVTTL-I

    ModSelL

    Module Select

    9

    LVTTL-I

    ResetL

    Module Reset

    10

    Vcc Rx

    +3.3V Power Supply Receiver

    2

    11

    LVCMOSI/O

    SCL

    2-wire serial interface clock

    12

    LVCMOSI/O

    SDA

    2-wire serial interface data

    13

    GND

    Ground

    1

    14

    CML-O

    Rx3p

    Receiver Non-Inverted Data Output

    15

    CML-O

    Rx3n

    Receiver Inverted Data Output

    16

    GND

    Ground

    1

    17

    CML-O

    Rx1p

    Receiver Non-Inverted Data Output

    18

    CML-O

    Rx1n

    Receiver Inverted Data Output

    19

    GND

    Ground

    1

    20

    GND

    Ground

    1

    21

    CML-O

    Rx2n

    Receiver Inverted Data Output

    22

    CML-O

    Rx2p

    Receiver Non-Inverted Data Output

    23

    GND

    Ground

    1

    24

    CML-O

    Rx4n

    Receiver Inverted Data Output

    25

    CML-O

    Rx4p

    Receiver Non-Inverted Data Output

    26

    GND

    Ground

    1

    27

    LVTTL-O

    ModPrsL

    Module Present

    28

    LVTTL-O

    IntL

    Interrupt

    29

    Vcc Tx

    +3.3V Power supply transmitter

    2

    30

    Vcc1

    +3.3V Power supply

    2

    31

    LVTTL-I

    LPMode

    Low Power Mode

    32

    GND

    Ground

    1

    33

    CML-I

    Tx3p

    Transmitter Non-Inverted Data Input

    34

    CML-I

    Tx3n

    Transmitter Inverted Data Input

    35

    GND

    Ground

    1

    36

    CML-I

    Tx1p

    Transmitter Non-Inverted Data Input

    37

    CML-I

    Tx1n

    Transmitter Inverted Data Input

    38

    GND

    Ground

    1

    Note 1: GND is the symbol for signal and supply (power) common for the QSFP28 module. All are common within the QSFP28 module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.

    Note 2: Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrent- ly. Requirements defined for the host side of the Host Edge Card Connector are listed in Table 6. Recommended host board power supply filtering is shown in Figure 4. Vcc Rx Vcc1 and Vcc Tx may be internally connected with- in the QSFP28 Module module in any combination. The connector pins are each rated for a maximum current of 500 mA.

     

    SFP28 Pin Descriptions

    Pin

    Logic

    Symbol

    Name/Description

    Notes

    1

    VeeT

    Transmitter Ground

    2

    LV-TTL-O

    TX_Fault

    N/A

    1

    3

    LV-TTL-I

    TX_DIS

    Transmitter Disable

    2

    4

    LV-TTL-I/O

    SDA

    Tow Wire Serial Data

    5

    LV-TTL-I

    SCL

    Tow Wire Serial Clock

    6

    MOD_DEF0

    Module present, connect to VeeT

    7

    LV-TTL-I

    RS0

    N/A

    1

    8

    LV-TTL-O

    LOS

    LOS of Signal

    2

    9

    LV-TTL-I

    RS1

    N/A

    1

    10

    VeeR

    Reciever Ground

    11

    VeeR

    Reciever Ground

    12

    CML-O

    RD-

    Reciever Data Inverted

    13

    CML-O

    RD+

    Reciever Data Non-Inverted

    14

    VeeR

    Reciever Ground

    15

    VccR

    Reciever Supply 3.3V

    16

    VccT

    Transmitter Supply 3.3V

    17

    VeeT

    Transmitter Ground

    18

    CML-I

    TD+

    Transmitter Data Non-Inverted

    19

    CML_I

    TD-

    Transmitter Data Inverted

    20

    VeeT

    Transmitter Ground

    1. Signals not supported in SFP28 Copper pulled-down to VeeT with 30K ohms resistor

    2. Passive cable assemblies do not support  LOS and TX_DIS

     

    Applications

    • 100GE/25 Gigabit Ethernet
    • Switches, Routers, and HBAs
    • Data Centers

     

    Part Number

    BD-QSFP-CABLE-XXXXC

    Lengthmeter

    1

    2

    3

    5

    Wire gaugeAWG

    30

    30

    26

    26

  • Related Products