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JHA-SFP28-25G-AOC spec
JHA-SFP28-25G-AOC spec
JHA-SFP28-25G-AOC spec
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  • JHA-SFP28-25G-AOC spec
  • JHA-SFP28-25G-AOC spec
  • JHA-SFP28-25G-AOC spec

JHA-SFP28-25G-AOC spec

l Electrical interface compliant to SFF-8431 l 850nm VCSEL laser and PIN photo-detector l Maximum link length of 70m on OM3 MMF and 100m on OM4 MMF l Digital diagnostics functions are available via the I2C interface l l Operating case temperature Commercial: 0°C to +70 °C l+3.3V single power supply l Power consumption less than 1W l RoHS compliant l Password protection for A0h and A2h
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  • 产品描述
  • 产品特征
  • 产品参数

  • l Electrical interface compliant to SFF-8431

    l 850nm VCSEL laser and PIN photo-detector

    l Maximum link length of                                             

           70m on OM3 MMF and 100m on OM4 MMF

    l Digital diagnostics functions are available via the I2C interface  l

    l Operating case temperature Commercial: 0°C to +70 °C

    l+3.3V single power supply

    l Power consumption less than 1W

    l RoHS compliant

    l Password protection for A0h and A2h

    Applications

    l 25GBASE-SR Ethernet

    l Servers, switches, storage and host card adapters

  • Features

    l Electrical interface compliant to SFF-8431

    l 850nm VCSEL laser and PIN photo-detector

    l Maximum link length of                                             

           70m on OM3 MMF and 100m on OM4 MMF

    l Digital diagnostics functions are available via the I2C interface  l

    l Operating case temperature Commercial: 0°C to +70 °C

    l+3.3V single power supply

    l Power consumption less than 1W

    l RoHS compliant

    l Password protection for A0h and A2h

    Applications

    l 25GBASE-SR Ethernet

    l Servers, switches, storage and host card adapters

  • Absolute Maximum Ratings

     

    Table1- Absolute Maximum Ratings

     

    Parameter

    Symbol

    Min.

    Typical

    Max.

    Unit

    Notes

    Supply Voltage

    Vcc3

    -0.5

    -

    +3.6

    V

     

    Storage Temperature

    Ts

    -10

    -

    +70

    °C

     

    Operating Humidity

    RH

    +5

    -

    +85

    %

    1

    Note: 1 No condensation

     

    Recommended Operating Conditions

     

    Table 2- Recommended operating Conditions

     

    Parameter

    Symbol

    Min.

    Typical

    Max.

    Unit

    Notes

    Operating Case Temperature

    TC

    0

    -

    +70

    °C

     

    Power Supply Voltage

    Vcc

    3.14

    3.3

    3.47

    V

     

    Power Supply Current

    Icc

    -

    -

    300

    mA

     

    Power Dissipation

    Pd

    -

    -

    1.0

    W

     

    Bit Rate

    BR

    8.5

    25.78125

    -

    Gbps

     

    Fiber Bend Radius

    Rb

    3

    -

    -

    cm

     

    Electrical Characteristics

     

    Table 3- Electrical Characteristics

     

    Parameter

    Symbol

    Min.

    Typ.

    Max.

    Units

    Notes

    Transmitter

    Differential Data Input Swing

    Vin,P-P

    200

    -

    1600

    mVPP

     

    Input Differential Impedance

    ZIN

    90

    100

    110

    Ω

     

     

    Tx_Fault

    Normal Operation

    VOL

    0

    -

    0.8

    V

     

    Transmitter Fault

    VOH

    2.0

    -

    VCC

    V

     

     

    Tx_Disable

    Normal Operation

    VIL

    0

    -

    0.8

    V

     

    Laser Disable

    VIH

    2.0

    -

    VCC+0.3

    V

     

    Receiver

    Differential Date Output

    Vout

    400

    -

    800

    mV

     

    Output Differential Impedance

    ZD

    90

    100

    110

    Ω

     

     

    Rx_LOS

    Normal Operation

    VOL

    0

    -

    0.8

    V

     

    Lose Signal

    VoH

    2.0

    -

    VCC

    V

     

    Optical Characteristics

     

    Table 4-Optical Characteristics

     

    Parameter

    Symbol

    Unit

    Min

    Typ

    Max

    Notes

    Optical transmitter Characteristics

    Bit Rate

    BR

    Gbps

    8.5

    25.78125

    -

     

    Center Wavelength Range

    λc

    nm

    820

    850

    880

     

    Average Launch power

    Tx_off

    Poff

    dBm

    -

    -

    -45

     

    Launch Optical Power

    P0

    dBm

    -6.0

     

    2.4

    1

    Extinction Ratio

    ER

    dB

    2

    -

    -

     

    Spectral Width(RMS)

    RMS

    nm

    -

    -

    0.65

     

    Optical Receiver Characteristics

    Bit Rate

    BR

    Gbps

    8.5

    25.78125

     

     

    Bit Error Rate

    BER

     

    -

    -

    E-12

     

    Damage threshold

    DT

    dBm

    3.4

    -

    -

     

    Overload Input Optical

    Power

    PIN

    dBm

    2.4

    -

    -

    2

    Center Wavelength Range

    λc

    nm

    820

    -

    880

     

    Receiver Sensitivity in

    Average Power

    Sen

    dBm

    -

    -

    -5.2

    3

    Los Assert

    LosA

    dBm

    -30

    -

    -

     

    Los De-Assert

    LosD

    dBm

    -

    -

    -13

     

    Los Hysteresis

    LosH

    dB

    0.5

     

     

     

    Note:

    1. Coupled into 50/125 MMF.

    2. 
    Measured with PRBS 231-1 test pattern @25.78125Gbps.BER=E-12 3. BER=1x10-12; PRBS231-1@25.78125Gbps.

     

    Recommended Host Board Power Supply 

                                                  Figure 1, Recommended Host Board Power Supply Circuit

    Recommended Interface Circuit

                      Figure 2, Recommended Interface Circuit

    Pin arrangement

     

    Figure 3, Pin View

     

    Table 5-Pin Function Definitions

     

    Pin

    Symbol

    Name/Description

    Notes

    1

    VEET

    Module Transmitter Ground

    1

    2

    TX_FAULT

    Module Transmitter Fault

    2

    3

    TX_DISABLE

    Transmitter Disable; Turns off transmitter laser output

    3

    4

    SDA

    2-Wire Serial Interface Data Line (MOD-DEF2)

     

    5

    SCL

    2-Wire Serial Interface Clock (MOD-DEF1)

     

    6

    MOD_ABS

    Module Absent, connected to VEET or VEER in the module

    2

    7

    RS0

    Rate Select 0, optionally controls SFP+ module receiver

    4

    8

    RX_LOS

    Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as NOT Signal Detect)

    2

    9

    RS1

    Rate Select 1, optionally controls SFP+ module transmitter

    4

    10

    VEER

    Module Receiver Ground

    1

    11

    VEER

    Module Receiver Ground

    1

    12

    RD-

    Receiver Inverted Data Output

     

    13

    RD+

    Receiver Non-Inverted Data Output

     

    14

    VEER

    Module Receiver Ground

    1

    15

    VCCR

    Module Receiver 3.3 V Supply

     

    16

    VCCT

    Module Transmitter 3.3 V Supply

     

    17

    VEET

    Module Transmitter Ground

    1

    18

    TD+

    Transmitter Non-Inverted Data Input

     

    19

    TD-

    Transmitter Inverted Data Input

     

    20

    VEET

    Module Transmitter Ground

    1

    Note:

    1.The module ground pins are isolated from the module case.

    2.The pins shall be pulled up with 4.7K-10Kohms to a voltage between 3.14V and 3.46V on host board.

    3.The pin is pulled up to VCCT with a 4.7K-10KΩ resistor in the module.


    4.See SFF-8472 Rev12.2 Table 10-2.

     

    Monitoring Specification

    Figure 4, Memory Map

     

    Mechanical Design Diagram

     

    Table 5- Cable Length

     

    Cable Length  L（Unit: m）

    Tolerant（Unit: cm）

    ≤1.0

    +5/-0

    1.0＜L≤4.5

    +15/-0

    4.5＜L≤14.5

    +30/-0

    ＞14.5

    +2%/-0

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