DE-G2RJX-B 1000 BASE-T Copper SFP Transceiver
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  • DE-G2RJX-B 1000 BASE-T Copper SFP Transceiver

Applied to rail transit, expressway, power station, pipe gallery project and wireless wiring project

Category:

Key words: switch

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  • 1.  GENERAL DESCRIP

    1000 BASE-T Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA).They are compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3 . The 1000 BASE-T physical layer IC (PHY) can be accessed via I2C, allowing access to all PHY settings and features.

    It supports a SERDES, does not have a link indication feature,and 1000BASE-X auto-negotiation should be disabled on host system

     

    2. Features

    ● Up to 1.25 Gb/s bi-directional data links 

    ● Low power dissipation(1.05W typical)

    ● Compact RJ-45 connector assembly

    ● Fully metal enclosure, for lower EMI

    ● RoHS compliant and lead-free 

    ● Single +3.3V power supply 

    ● Case operating temperature:

      Commercial: 0℃ to +70℃

      Extended: -10℃ to +80℃

      Industrial: -40℃ to +85℃

  • Pin

    Symbol

    Name/Description

    NOTE

    1

    VEET

    Transmitter Ground (Common with Receiver Ground)

    1

    2

    TFAULT

    Transmitter Fault. Not supported.

     

    3

    TDIS

    Transmitter Disable. Not supported.

     

    4

    MOD_DEF(2)

    Module Definition 2. Data line for Serial ID.

    2

    5

    MOD_DEF(1)

    Module Definition 1. Clock line for Serial ID.

    2

    6

    MOD_DEF(0)

    Module Definition 0. Grounded within the module.

    2

    7

    Rate Select

    No connection required

     

    8

    LOS

    Loss of Signal indication. Logic 0 indicates normal operation.

    3

    9

    VEER

    Receiver Ground (Common with Transmitter Ground)

    1

    10

    VEER

    Receiver Ground (Common with Transmitter Ground)

    1

    11

    VEER

    Receiver Ground (Common with Transmitter Ground)

    1

    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)

    1

    15

    VCCR

    Receiver Power Supply

     

    16

    VCCT

    Transmitter Power Supply

     

    17

    VEET

    Transmitter Ground (Common with Receiver Ground)

    1

    18

    TD+

    Transmitter Non-Inverted DATA in. AC Coupled.

     

    19

    TD-

    Transmitter Inverted DATA in. AC Coupled.

     

    20

    VEET

    Transmitter Ground (Common with Receiver Ground)

    1

    Notes:

    1. Circuit ground is connected to chassis ground

    2. Should be pulled up with 4.7k - 10k Ohms on host board to a voltage between 2.0 V and 3.6 V. MOD_DEF(0) pulls line low to indicate module is plugged in. 

    3. LVTTL compatible with a maximum voltage of 2.5V.

     

    3.+3.3V Volt ElECTRICAL POWER INTERFACE

    The 1000base-T has an input voltage range of 3.3 V +/- 5%. The 4V maximum voltage is not allowed for continuous operation.

     

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Supply Current

    Is

     

    320

    375

    mA

    1.2W max power over full range of voltage and temperature. See caution note below

    Input Voltage

    Vcc

    3.13

    3.3

    3.47

    V

    Referenced to GND

    Maximum Voltage

    Vmax

     
     

    4

    V

     

    Surge Current

    Isurge

     
     

    30

    mA

    Hot plug above steady state

    current. See caution note below

    Caution: Power consumption and surge current are higher than the specified values in the SFP MSA

     

    4.LOW-SPEED SIGNALS,ELECTRONIC CHARACTERISTICS

    MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals (see section 9, "Serial Communication Protocol").Both MOD_DEF(1) and MOD_DEF(2) must be pulled up to host_Vcc

     

    Parameter

    Symbol

    Min

    Max

    unit

    Notes/Conditions

    SFP Output LOW

    VOL

    0

    0.5

    V

    4.7k to 10k pull-up to host_Vcc,measured at host side of connector

    SFP Output HIGH

    VOH

    host_Vcc -0.5

    host_Vcc + 0.3

    V

    4.7k to 10k pull-up to host_Vcc,measured at host side of connector

    SFP Input LOW

    VIL

    0

    0.8

    V

    4.7k to 10k pull-up to Vcc,measured at SFP side of connector

    SFP Input HIGH

    VIH

    2

    Vcc + 0.3

    V

    4.7k to 10k pull-up to Vcc,measured at SFP side of connector

     

    5. HIGH-SPEED ELECTRICAL INTERFACE,TRANSMISSION LINE-SFP

    All high-speed signals are AC-coupled internally.

     

    High-Speed Electrical Interface, Transmission Line-SFP

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Line Frequency

    fL

     

    125

     

    MHz

    5-level encoding, per

    IEEE 802.3

    Tx Output Impedance

    Zout,TX

     

    100

     

    Ohm

    Differential, for all

    frequencies between

    1MHz and 125MHz

    Rx Input Impedance

    Zin,RX

     

    100

     

    Ohm

    Differential, for all

    frequencies between

    1MHz and 125MHz

     

    6. HIGH-SPEED ELECTRICAL INTERFACE,HOST-SFP

     

    High-Speed Electrical Interface, Host-SFP

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Single ended data input

    swing

    Vinsing

    250

     

    1200

    mV

    Single ended

    Single ended data output

    swing

    Voutsing

    350

     

    800

    mV

    Single ended

    Rise/Fall Time

    Tr,Tf

     

    175

     

    psec

    20%-80%

    Tx Input Impedance

    Zin

     

    50

     

    Ohm

    Single ended

    Rx Output Impedance

    Zout

     

    50

     

    Ohm

    Single ended

     

    7. GENERAL SPECIFICATIONS

    General

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Data Rate

    BR

    10

     

    1000

    Mb/sec

    IEEE 802.3 compatible.

    See Notes 2 through 4 below

    Cable Length

    L

       

    100

    m

    Category 5 UTP. BER

    Notes:

    1. Clock tolerance is +/- 50 ppm

    2. By default, the 1000BASE-T is a full duplex device in preferred master mode

    3. Automatic crossover detection is enabled.  External crossover cable is not required

    4. 1000BASE-T does not support SGMII .With a SERDES the module will operate at 1000 BASE-T only

     

    8. ENVIRONMENTAL SPECIFICATIONS

     

    Environmental Specifications

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Case Operating Temperature

    Tcase

    0

     

    70

    °C

    commercial

    -10

     

    80

    °C

    extended

    -40

     

    85

    °C

    industrial

    Storage Temperature

    Tsto

    -40

     

    85

    °C

    Ambient temperature

     
     

    9. SERIAL COMMUNICATION PROTOCOL

    support the 2-wire serial communication protocol outlined in the SFP MSA. It uses use an Atmel AT24C02B 256 byte EEPROM with an address of A0h.

     

    Serial Bus Timing Requirements

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    I 2C Clock Rate

     

    0

     

    100,000

    Hz

     

     


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