PRODUCTS > ACTIVE PRODUCTS > PON > ASP-PR-GT-DC-30  OLT
ASP-PR-GT-DC-30  OLT
Accelight’s ASP-PR-GT-DC-30 Series is a transceiver for the optical line terminal (OLT) of XGS-PON/XG- PON with 9.953Gbps in downstream and 9.95328/2.48832Gbps in upstream. ASP-PR-GT-DC-30 series is high performance module for single fiber communications by using 1577nm continuous-mode transmitter and 1270nm burst-mode receiver. The transmitter section uses an EML 1577nm laser and is a class 1 laser compliant according to International Safety Standard IEC-60825-1. The receiver section uses an integrated 1270 nm detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.

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Product Details
  • Product Features
    ⚫ SFP+ Package with SC Receptacle
    ⚫ 9.95328 Gbps/1577 nm Continuous Mode Transmitter with EML laser
    ⚫ 9.95328/2.48832Gbp/1270nm High SensitivityBurst-Mode APD-TIA Receiver
    ⚫ Supports Digital Diagnostic Monitoring Functions
    ⚫ Burst mode received signal strength indication(RSSI)output
    ⚫ CML interface logic level for data input/output
    ⚫ Operating Case Temperature Standard: 0℃~+70℃
  • Applications
    ⚫ XGS-PON/XGPON application
  • Ordering information

    Part No.

    Input

    Output

    Interface

    Temp.

    Fiber

    ASP-PR-GT-DC-30

    AC/10G

    DC/10G/2.5G

    SC

    Standard

    SMF


    Note: Interface provide APC/UPC to choose.


  • Performance Specifications


    Absolute Maximum Ratings

    Parameter

    Symbol

    Min.

    Max.

    Unit

    Storage Temperature

    Ts

    -40

    85

    °C

    Supply Voltage

    Vcc

    -0.5

    3.6

    V

    Operating Relative   Humidity

    RH

    5

    95

    %

    Recommended Operating Conditions

    Parameter

    Symbol

    Min.

    Typical

    Max.

    Unit

    Operating Case   Temperature

    Tc

    0


    70

    °C

    Power Supply   Voltage

    Vcc

    3.15

    3.3

    3.45

    V

    Power Supply   Current

    Icc



    750

    mA

    Relative   Humidity

    RH

    5


    85

    %

    Data rate

    TX_side


    9.95328


    Gbps

    Rx_side


    9.95328/2.48832


    10G Transmitter Electrical and Optical Characteristics

    Parameter

    Symbol

    Min.

    Typ.

    Max

    Unit

    Notes

    Electrical

    CML Input(Differential)

    Vin

    100


    850

    mVpp


    Input Impedance (Differential)

    Zin

    85

    100

    115

    ohm

    Tx_Disable

    Disable

    2


    Vcc

    V

    Tx_Enable

    Enable

    GND


    GND+0.8

    V


    TX_FAULT

    FAULT

    2.4


    Vcc

    V


    TX_FAULT

    Normal

    GND


    GND+0.4

    V


    Optical

    Data Rate

    @Tx


    9.95328


    Gbps


    The type of   optical


    EML laser


    Centre Wavelength Spectral Width (-20dB)

    λC

    1575

    1577

    1580

    nm


    ∆λ



    1

    nm


    Average Output Power(N1)

    EOL

    Pout

    +2


    +5

    dBm


    Side Mode   Suppression Mode

    SMSR

    30



    dB


    Extinction   Ratio

    ER

    8.2



    dB

    Note3

    Transmitter   tolerance

    to reflected power

    CW

    -15



    dB


    Optical Output Power with Tx OFF

    P_off



    -39

    dBm


    Output Optical Eye

    ITU-T G.9807.1 Compliant

    10G Receiver Electrical and Optical Characteristics

    Parameter

    Symbol

    Min.

    Typical

    Max.

    Unit

    Electrical

    LVCML

    Vout

    300


    800

    mV

    Outputs(Differential)

    Output Impedance (Differential)

    Zout

    85

    100

    115

    ohm

    Rx_SD

    High Low


    2


    Vcc

    V


    0


    0.8

    V

    Optical

    Data Rate

    @Rx


    9.953/2.488


    Gbps

    Centre Wavelength

    λC

    1260

    1270

    1280

    nm

    SD Hysteresis



    0.5


    dB

    XGS-PON Sensitivity(N1)

    @9.95G BER=1E-3



    -26

    dBm

    @2.488G BER=1E-4



    dBm

    XGS-PON
      Receiver Saturation

    @9.95G

    -5


    -27.5

    dBm

    @2.488G

    -7


    dBm

    Receiver Reflectance





    dB

    PDL




    -12

    dB

    Consecutive Identical Digit Immunity


    72


    0.5

    bit

    Rx_SD

    Assert

    -40




      dBm

    De-assert



    -29

    Pin Functions

    Pin

    Name

    Function

    Plug Seq.





    1

    NC


    1st

     

     

    2

     

     

    Tx_Fault

    TX Fault is an   open collector/drain output, which should be pulled up with a 4.7K – 10KΩ   resistor on thehost board. When high, output indicates a   laser fault of

    some   kind. Low indicates normal operation.

     

     

    3rd

     

     

    3

     

     

    Tx_Disable

    Tx Disable. LVTTL input. Laser output is disabled when this pin is   asserted high or left unconnected. Laser output is enabled when this pin is   asserted

    low.

     

     

    3rd

    4

    SDA

    2-Wire Serial Data I/O Pin.

    3rd

    5

    SCL

    2-Wire Serial Clock Input.

    3rd

    6

    GND

    GROUND

    3rd

    7

    NC


    3rd

     

     

    8

     

     

    XGSPON_SD

    XGSPON_SD is an open collector/drain output, which should be   pulled up with a 4.7K – 10KΩ resistor. When low, this output indicates the   received  optical   power     is   below   the worst-case

    receiver sensitivity. High indicates normal operation.

     

     

    3rd

    9

    RSSI_Trig

    RSSI acquire/hold LVTTL Input.   RSSI trigger

    3rd

    10

    GND

    GROUND

    1st

    11

    GND

    GROUND

    1st

    12

    2.5/10G

    RD-

    Negative Data Output, LVCML   output with DC

    coupling

    3rd

    13

    2.5/10G

    RD+

    Positive Data Output, LVCML   output with DC

    coupling

    3rd

    14

    GND

    GROUND

    1st

    15

    VCC

    3.3V Power supply

    2nd

    16

    VCC

    3.3V Power supply

    2nd

    17

    GND

    GROUND

    1st

    18

    10G TD+

    Positive Data                         Input,   LVPECL AC                    coupled;

    internally 100 ohms   differential termination

    3rd

    19

    10G TD-

    Negative   Data Input, LVPECLAC coupled;

    internally   100 ohms differential termination

    3rd

    20

    GND

    GROUND

    1st

    Digital Diagnostic Functions

    The memory map in the following describes an extension to the memory map defined in SFP-8472.

    The enhanced interface uses the two wire serial bus address 1010001X (A2h) to provide diagnostic information about the module’s present operating conditions.

    image.png

    DDM Specification

    Byte

    Name

    Description

    Range

    Accuracy

    Notes

    96

    Temperature MSB

    Temperature

    -40~85

    3


    97

    Temperature LSB

    98

    VCC MSB

    Voltage

    3V to 3.6V

    3


    99

    VCC LSB

    100

    TX Bias MSB

    Bias   Current

    0 to   262mA

    10

    LSB equal   to 4 uA

    101

    TX   Bias LSB

    102

    TX Power MSB

    TX   Power

    -37 to   11.2dBm

    2dB

    LSB equal   to 0.2 uW

    103

    TX Power LSB

    104

    RX Power MSB

    RX Power

    -40 to   8.2dBm

    2dB

    LSB equal   to 0.1 uW

    105

    RX Power LSB

    106~109

    Reserved

    Reserved




    Digital RSSI Timing Characteristics

    image.png

    Digital RSSI Timing Specification

    Parameter

    Symbol

    Min.

    Typ.

    Max

    Unit

    Notes

    Packet Length

    tONT

    600



    ns


    Trigger Delay

    Td

    0



    ns


    RSSI Trigger & Sample

    Time

     

    TW

     

    500



     

    ns


    Delay before Read

    TS

    500



    us


    Recommended High-Speed Interface Circuit

    image.png

  • Mechanical Specification

    image.png

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