PRODUCTS > ACTIVE OPTICAL CABLES > 25G SFP28 AOC
25G SFP28 AOC

DOWNLOAD

Product Details
  • Product Features
    Up to 28Gbps Data rate per channel
    Maximum link length of 100m links on OM3 multimode fiber
    High Reliability 850nm VCSEL technology
    Electrically hot-pluggable
    Electrical interface compliant to SFF-8431
    Case operating temperature range:0°C to 70°C
    Power dissipation < 1.0W per cable end
  • Applications
    25G Ethernet
    Data center and fiber channel
  • Standards
    Compliant to SFF-8431
    Compliant to SFF 8472
    RoHS Compliant.
  • Ordering information

    Part number

    Description

    AAS1S1025Cxxx

    XXX=different   cable lengths on OM3 Multimode Fiber (MMF)

    Xxx

    cable   lengths on OM3 Multimode Fiber (MMF)

    003

    3m

    005

    5m

    007

    7m

    010

    10m

    050

    50m

    100

    100m


  • Performance Specifications

    Absolute Maximum Ratings

    Parameter

    Symbol

    Min.

    Typ.

    Max.

    Unit

    Note

    Storage Temperature

    Ts

    -40

    -

    85

    ºC


    Relative Humidity

    RH

    5

    -

    95

    %


    Power Supply Voltage

    VCC

    -0.3

    -

    4

    V


    Signal Input Voltage


    Vcc-0.3

    -

    Vcc+0.3

    V


    Recommended Operating Conditions

    Parameter

    Symbol

    Min.

    Typ.

    Max.

    Unit

    Note

    Case Operating Temperature

    Tcase

    0

    -

    70

    ºC

    Without air flow

    Power Supply Voltage

    VCC

    3.14

    3.3

    3.46

    V


    Power   Supply Current

    ICC

    -


    300

    mA

    Per cable end

    Data Rate

    BR


    25.78


    Gbps


    General Product Characteristics

    Parameter

    Value

    Unit

    Notes

    Module Form Factor

    SFP28



    Maximum Data Rate

    28

    Gb/s


    Standard Cable Lengths

    3, 5, 7, 10 ,50,100

    meters

    Other lengths, please contact

    sales

    Protocols Supported

    Typical applications include Infiniband, Fiber Channel,   25G



    Ethernet

    Electrical Interface and Pin-out

    20-pin edge connector


    Pin-out as defined by the SFP+

    MSA

    Standard Optical Cable Type

    Multimode ribbon fiber cable



    assembly, riser-rated

    Maximum Power Consumption per

    1

    W


    End

    Management Interface

    Serial, I2C-based, 400 kHz maximum


    As defined by the SFP+ MSA

    frequency

    Electrical Characteristics

    Parameter-Inputs

    Symbol

    Min

    Typ

    Max

    Unit

    NOTE

    Supply Voltage

    VccT,VccR

    3.14

    3.3

    3.46

    V


    Supply Current

    Icc



    300

    mA


    Transmitter







    Differential data input swing

    Vin,pp

    50


    900

    mV

    1

    Single    ended               input               voltage tolerance

    VinT

    -0.3


    4.0

    V


    Receiver







    Differential data output swing

    Vout,pp

    300


    850

    mV

    2

    Single-ended output voltage


    -0.3


    4.0

    V


    Notes:

     

    1.  AC coupled internally. Self-biasing 100Ω differential input.

     

    2.  AC coupled with 100Ω differential output impedance.

    Pin Assignment

    image.png

    Pin

    Symbol

    Name/Description

    NOTE

    1

    VEET

    Transmitter   Ground (Common with Receiver Ground)

    1

    2

    TFAULT

    Transmitter   Fault.


    3

    TDIS

    Transmitter   Disable. Laser output disabled on high or open.


    4

    SDA

    2-wire Serial   Interface Data Line

    1

    5

    SCL

    2-wire Serial   Interface Clock Line


    6

    MOD_ABS

    Module Absent.   Grounded within the module


    7

    RS0

    Rate Select 0

    1

    8

    LOS

    Loss of Signal   indication. Logic 0 indicates normal operation.


    9

    RS1

    No connection   required


    10

    VEER

    Receiver Ground   (Common with Transmitter Ground)

    2

    11

    VEER

    Receiver Ground   (Common with Transmitter Ground)


    12

    RD-

    Receiver   Inverted DATA out. AC Coupled


    13

    RD+

    Receiver   Non-inverted DATA out. AC Coupled


    14

    VEER

    Receiver Ground   (Common with Transmitter Ground)


    15

    VCCR

    Receiver Power   Supply


    16

    VCCT

    Transmitter   Power Supply

    1

    17

    VEET

    Transmitter   Ground (Common with Receiver Ground)


    18

    TD+

    Transmitter   Non-Inverted DATA in. AC Coupled.


    19

    TD-

    Transmitter   Inverted DATA in. AC Coupled.

    1

    20

    VEET

    Transmitter   Ground (Common with Receiver Ground)

    1

    Notes:

    1.      Circuit ground is internally isolated from chassis ground.

    2.      TFAULT is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V.A high output indicates a transmitter fault caused by either the TX bias current or the TX output power exceeding the preset alarm thresholds. A low   output indicates normal operation. In the low state, the output is pulled to <0.8V.

    3.      Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.

    4.      Should be pulled up with 4.7kΩ- 10kΩ host board to a voltage between 2.0V and 3.6V. MOD_ABS pulls line low to indicate module is plugged in.

    5.      Internally pulled down per SFF-8431 Rev 4.1.

    6.      LOS is open collector output. It should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

     

    Host - Transceiver Interface Block Diagram

    image.png

  • Mechanical Specification

     






Related Products