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1.25G SFP Module single mode dual fiber 20km

The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.

The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.


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  • ● FP laser transmitter and PIN photo-detector

    ● Dual Data-rate of 1.25Gbps/1.0625Gbps Operation

    ● Up to 20KM transmission distance on 9/125μm SMF

    ●Compliant with SFP MSA and SFF-8472 with duplex LC receptacle

    ● Digital Diagnostic Monitor Interface

    ● Very low EMI and excellent ESD protection

    ● +3.3V single power supply

    ●Compatible with RoHS

    ●Operating case temperature

                 Commercial: 0°C to +70°C

                 Extended: -10°C to +80°C

                 Industrial: -40°C to +85°C


  • General Operating Characteristics

    Parameter

    Symbol

    Min.

    Typ.

    Max.

    Unit

    Notes

    Data Rate

    Gigabit Ethernet



    1.25


    Gb/s


    Fiber Channel



    1.0625


    Supply Voltage

    Vcc

    3.1

    3.3

    3.5

    V


    Supply Current

    Icc



    220

    mA


    Operating Case Temperature

    Tc

    0


    70


    -10


    80

    -45


    85

     

    Electrical Input/Output Characteristics

     Transmitter

    Parameter

    Symbol

    Min.

    Typ.

    Max.

    Unit

    Notes

    Diff. Input Voltage Swing


    300


    1800

    mVpp

    1

    Tx Disable Input

    H

    VIH

    2.0


    Vcc+0.3

    V


    L

    VIL

    0


    0.8

    Tx Fault Output

    H

    VOH

    2.0


    Vcc+0.3

    V

    2

    L

    VOL

    0


    0.8

    Input Diff. Impedance

    Zin


    100


    Ω


     

    Receiver

    Parameter

    Symbol

    Min.

    Typ.

    Max.

    Unit

    Notes

    Diff. Output Voltage Swing


    400


    1000

    mVpp

    3

    Rx LOS Output

    H

    VOH

    2.0


    Vcc+0.3

    V

    2

    L

    VOL

    0


    0.8


    Note 1) TD+/- are internally AC coupled with 100Ω differential termination inside the module.

    Note 2) Tx Fault and Rx LOS are open collector outputs, which should be pulled up with 4.7k to 10kΩ resistors on the host board. Pull up voltage between 2.0V and Vcc+0.3V.

    Note 3) RD+/- outputs are internally AC coupled, and should be terminated with 100Ω (differential) at the user SERDES.

     

    Optical Characteristics

    ● Transmitter

    Parameter

    Symbol

    Min.

    Type

    Max.

    Unit

    Notes

    Ave. Output Power (Enable)

    10km

    Po

    -9


    -3

    dBm

    1

    20km




    Extinction Ratio

    ER

    9



    dB

    1

    Rise/Fall Time (20%-80%)

    Tr-Tf



    0.26

    ns

    2

    Wavelength Range


    1270


    1360

    nm


    Spectral Width (RMS)




    4

    nm


    Output Optical Eye

    Compliant with  IEEE802.3 z (class 1 aser safety)

     

    ● Receiver

    Parameter

    Symbol

    Min.

    Type

    Max.

    Unit

    Notes

    Operating Wavelength


    1270


    1610

    nm


    Sensitivity

    10km

    Pimin



    -22

    dBm

    3

    20km




    Min. Overload

    Pimax

    -3



    dBm

    3

    LOS Assert

    Pa

    -35



    dBm


    LOS De-assert

    Pd



    -23

    dBm


    LOS Hysteresis

    Pd-Pa

    0.5


    6

    dB


    Note 1) Measured at 1250 Mb/s with PRBS 223 – 1 NRZ test pattern.

    Note 2) Unfiltered, measured with a PRBS 223-1 test pattern @1.25Gbps

    Note 3) Measured at 1250 Mb/s with PRBS 223 – 1 NRZ test pattern for BER < 1x10-12


  • 尺寸.jpg

  • Gigabit Ethernet

    Fiber Channel

    Switch to Switch interface

    Switched backplane applications

    Router/Server interface

    Other optical transmission systems