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155Mb/s SFP SM100MA-05

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    SM100MA-05 Copper Small Form Pluggable (SFP) transceivers are

    based on the SFP Multi Source Agreement (MSA) . They are compatible

    with the 10base-T / 100base-Tx standards as specified in IEEE Std 802.3.

    SFP-100BASE-T uses the SFP's RX_LOS pin for link indication. If pull up

    SFP's TX_DISABLE pin, SWITCH IC be reset.

     

     

     

     

     

     

     

    Cable Length

     

     

    Line Side

    Cable

    Reach

    Host Interface

    10base-T

    CAT5

    200m

    100base-FX

    100base-Tx

    CAT5

    100m

    100base-FX

     

     

     

     

     

    SFP to Host Connector Pin Out

     

     

    Pin

    Symbol

    Name/Description

    Ref

    1

    VEET

    Transmitter Ground (Common with Receiver Ground)

    1

    2

    TFAULT

    Transmitter Fault. Not supported.

     

    3

    TDIS

    Transmitter Disable. Laser output disabled on high or open.

    2

    4

    MOD_DEF(2)

    Module Definition 2. Data line for Serial ID.

    3

    5

    MOD_DEF(1)

    Module Definition 1. Clock line for Serial ID.

    3

    6

    MOD_DEF(0)

    Module Definition 0. Grounded within the module.

    3

    7

    Rate Select

    No connection required

     

    8

    LOS

    High indicates no linked. low indicates linked.

    4

    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. PHY disabled on TDIS > 2.0V or open, enabled on TDIS < 0.8V

    3. Should be pulled up with 4.7k - 10k Ohms on host board to a

    voltage between 2.0 V and 3.6V. MOD_DEF(0) pulls line low

    to indicate module is plugged in. 

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

     

    Diagram of host board connector block pin numbers and names

     

     

     

     

     

    +3.3V Volt Electrical Power Interface

     

    The SFP-100BASE-Tx has an input voltage range of 3.3 V +/- 5%. The 4V maximum

    voltage is not allowed for continuous operation.

     

     

    +3.3 Volt Electrical Power Interface

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Supply Current

    Is

     

    -

    300

    mA

    1.0W 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

     

    TBD

     

    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

     

     

     

    Low-Speed Signals

     

    MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals

    (see section VII, "Serial Communication Protocol").  Both MOD_DEF(1) and

    MOD_DEF(2) must be pulled up to host_Vcc.

     

     

    Low-Speed Signals,Electronic Characteristics

    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

     

     

     

    High-Speed Electrical Interface

     

    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

     

    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

     

    -

     

    psec

    20%-80%

    Tx Input Impedance

    Zin

     

    50

     

    Ohm

    Single ended

    Rx Output Impedance

    Zout

     

    50

     

    Ohm

    Single ended

     

     

     

    General Specifications

     

     

    General

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Data Rate

    BR

    10

     

    100

    Mb/sec

    IEEE 802.3 compatible.

    See Notes 1,2 below

    Notes:  Clock tolerance is +/- 50 ppm

     

     

     

    Environmental Specifications

     

     

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

     

     

    Environmental Specifications

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    Operating Temperature

    Top

    -40

     

    85

    °C

    Case temperature

    Storage Temperature

    Tsto

    -40

     

    85

    °C

    Ambient temperature

     

     

     

    Serial Communication Protocol

     

     

    All SFPs support the 2-wire serial communication protocol outlined in the

    SFP MSA. These SFPs use an MCU, can be accessed with address of A0h.

     

     

    Serial Bus Timing, Requirements

    Parameter

    Symbol

    Min

    Typ

    Max

    unit

    Notes/Conditions

    I2C Clock Rate

     

    0

     

    200,000

    Hz

     

     

     

     

    Mechanical Specifications (Unit:mm)

     

     

     

     

     

● 155Mb/s SFP, 850nm  MM, 0.55km, 14.5dB