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SFP Transceiver

10G 20KM BIDI

●Supports 9.95 to 10.3Gb/s bit rates
●Simplex LC Connector
●Hot pluggable SFP+ footprint
●Uncooled 1270nm DFB transmitter, 1330nm PIN photo-detector 
●Uncooled 1330nm DFB transmitter, 1270nm PIN photo-detector
●Applicable for 10km SMF connection
●Low power consumption, < 1W
●Digital Diagnostic Monitor Interface
●Optical interface compliant to IEEE 802.3ae 10GBASE-LR 
●Electrical interface compliant to SFF-8431  
●Operating case temperature: 
Commerical:0 to 70 °C 
   Industrial:-20 to 80 °C 

    Applications

    10GBASE-LR at 10.3125Gbps

    10GBASE-LW at 9.953Gbps   

    Other optical link

     

    Product Descriptions

        single mode transceiver is small form factor pluggable module for optical data communications such as 10GBASE-LR/LW defined by IEEE 802.3ae. It is with the SFP+ 20-pin connector to allow hot plug capability. The module is designed for single mode fiber and operates at a nominal wavelength of 1270nm or 1330nm; The transmitter section uses a multiple quantum well DFB, which is class 1 laser compliant according to International Safety Standard IEC-60825.The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC. The transceiver designs are optimized for high perform -ance and cost effective to supply customers the best solutions for telecommunication.

                                

    Absolute Maximum Ratings

    Parameter

    Symbol

    Min.

    Max.

    Unit

    Note

    Supply Voltage

    Vcc

    -0.5

    4.0

    V

     

    Storage Temperature

    TS

    -40

    85

    °C

     

    Relative Humidity

    RH

    0

    85

    %

     

     

    Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the transceiver.

    General Operating Characteristics

    Parameter

    Symbol

    Min.

    Typ

    Max.

    Unit

    Note

    Data Rate

    DR

    9.95

     

    10.3125

    Gb/s

     

    Supply Voltage

    Vcc

    3.13

    3.3

    3.47

    V

     

    Supply Current

    Icc5

     

     

    300

    mA

     

    Operating Case Temp.

    Tc

    0

     

    70

    °C

     

    TI

    -20

     

    80

     

     

    Electrical Characteristics (TOP(C) = 0 to 70 , TOP(I) =-20 to 80 ,VCC = 3.13 to 3.47 V)

    Parameter

    Symbol

    Min.

    Typ

    Max.

    Unit

    Note

    Transmitter

    Differential data input swing

    VIN,PP

    180

     

    700

    mVpp

    1

    Transmit Disable Voltage

    VD

    VCC-0.8

     

    Vcc

    V

     

    Transmit Enable Voltage

    VEN

    Vee

     

    Vee+0.8

    Input differential impedance

    Rin

     

    100

     

    Ω

     

    Receiver

    Differential data output swing

    Vout,pp

    300

     

    850

    mVpp

    2

    Output rise time and fall time

    Tr, Tf

    28

     

     

    Ps

    3

    LOS asserted

    VLOS_F

    VCC-0.8

     

    Vcc

    V

    4

    LOS de-asserted

    VLOS_N

    Vee

     

    Vee+0.8

    V

    4

     

    Notes:

    1. Connected directly to TX data input pins. AC coupling from pins into laser driver IC.

    2. Into 100Ω differential termination.

    3. 20 – 80%. Measured with Module Compliance Test Board and OMA test pattern. Use of four 1’s and four 0’s sequence in the PRBS 9 is an acceptable alternative.

    4. LOS is an open collector output. Should be pulled up with 4.7kΩ – 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1.

     

    Optical Characteristics (TOP(C) = 0 to 70 , TOP(I) =-20 to 80 ,VCC = 3.13 to 3.47 V)

    Parameter

    Symbol

    Min.

    Typ

    Max.

    Unit

    Note

    Transmitter

    Operating Wavelength

    λ

    1260

    1270

    1280

    nm

     

    1320

    1330

    1340

     

    Ave. output power (Enabled)

    PAVE

    -3

     

    +3

    dBm

    1

    Side-Mode Suppression Ratio

    SMSR

    30

     

     

    dB

     

    Extinction Ratio

    ER

    4.5

     

     

    dB

     

    RMS spectral width

    Δλ

     

     

    1

    nm

     

    Rise/Fall time (20%~80%)

    Tr/Tf

     

     

    50

    ps

     

    Dispersion penalty

    TDP

     

     

    3.2

    dB

     

    Relative Intensity Noise

    RIN

     

     

    -128

    dB/Hz

     

    Output Optical Eye

    Compliant with IEEE 0802.3ae

    Receiver

    Operating Wavelength

    λ

    1320

    1330

    1340

    nm

     

    1260

    1270

    1280

     

    Receiver Sensitivity(ER=4.5)

    PSEN1

     

     

    -12.6

    dBm

    2

    Receiver Sensitivity(ER=6)

    PSEN2

     

     

    -14.4

    dBm

    2

    Average Receive Power

    PAVE

     

     

    0.5

    dBm

     

    Receiver Reflectance

    Rrx

     

     

    -12

    dB

     

    LOS Assert

    Pa

    -30

     

     

    dBm

     

    LOS De-assert

    Pd

     

     

    -17

    dBm

     

    LOS Hysteresis

    Pd-Pa

    0.5

     

     

    dB

     

     

    Notes:

    1. Average power figures are informative only, per IEEE 802.3ae.

    2. Measured with worst ER; BER<10-12; 231 – 1 PRBS.

     

    Pin

    Symbol

    Name/Description

    1

    VEET [1]

    Transmitter Ground  

    2

    Tx_FAULT [2]

    Transmitter Fault  

    3

    Tx_DIS [3]

    Transmitter Disable. Laser output disabled on high or open  

    4

    SDA [2]

    2-wire Serial Interface Data Line

    5

    SCL [2]

    2-wire Serial Interface Clock Line  

    6

    MOD_ABS [4]

    Module Absent. Grounded within the module  

    7

    RS0

    Rate Select 0

    8

    RX_LOS [2]

    Loss of Signal indication. Logic 0 indicates normal operation

    9

    RS1 [5]

    Rate Select 1  

    10

    VEER [1]

    Receiver Ground  

    11

    VEER [1]

    Receiver Ground  

    12

    RD-

    Receiver Inverted DATA out. AC Coupled  

    13

    RD+

    Receiver DATA out. AC Coupled  

    14

    VEER [1]

    Receiver Ground  

    15

    VCCR

    Receiver Power Supply  

    16

    VCCT

    Transmitter Power Supply  

    17

    VEET [1]

    Transmitter Ground  

    18

    TD+

    Transmitter DATA in. AC Coupled  

    19

    TD-

    Transmitter Inverted DATA in. AC Coupled  

    20

    VEET [1]

    Transmitter Ground  

     

    Notes:

    1.Module circuit ground is isolated from module chassis ground within the module.

    2.should be pulled up with 4.7k – 10k ohms on host board to a voltage between 3.15Vand 3.6V.

    3.Tx_Disable is an input contact with a 4.7 kΩ to 10 kΩ pullup to VccT inside the module.

    4.Mod_ABS is connected to VeeT or VeeR in the SFP+ module. The host may pull this contact up to Vcc_Host with a resistor in the range 4.7 kΩ to10 kΩ.Mod_ABS is asserted “High” when the SFP+ module is physically absent from a host slot.

     

    Serial Interface for ID and Digital Diagnostic Monitor

     

    The transceiver support the 2-wire serial communication protocol as defined in the SFP+ MSA. The standard SFP+ serial ID provides access to identification information that describes the transceiver’s capabilities, standard interfaces, manufacturer, and other information. Additionally, This SFP+ transceivers provide an enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.

     

    The SFP MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X(A0h), so the originally monitoring interface makes use of the 8 bit address(A2h), so the originally defined serial ID memory map remains unchanged. The structure of the memory map is shown in Table1.

     

    Digital Diagnostic Specifications

     

    The transceivers can be used in host systems that require either internally or externally calibrated digital diagnostics.  

    Parameter

    Symbol

    Units

    Min.

    Max.

    Accuracy

    Note

    Transceiver temperature

    DTemp-E

    ºC

    -45

    +90

    ±5ºC

    1,2

    Transceiver supply voltage

    DVoltage

    V

    2.8

    4.0

    ±3%

     

    Transmitter bias current

    DBias

    mA

    0

    127

    ±10%

    3

    Transmitter output power

    DTx-Power

    dBm

    -5

    +5

    ±2dB

     

    Receiver average input power

    DRx-Power

    dBm

    -20

    +1

    ±2dB

     

     

    Notes:

    1.When Operating temp.=0~70 ºC,the range will be min=-5,Max=+75

    2. Internally measured

    3. The accuracy of the Tx bias current is 10% of the actual current from the laser driver to the laser

     

     

    Note:

    Inductors with DC resistance of less than 1Ω should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30 mA greater than the steady state value

    Ordering Information

     

    Description

    SFP+Bidi,9.95 to 10.3Gb/s, 1270/1330nm, 20km, 0~70, with Digital Diagnostic Monitor

    SFP+Bidi,9.95 to 10.3Gb/s, 1330/1270nm, 20km, 0~70, with Digital Diagnostic Monitor

    SFP+Bidi,9.95 to 10.3Gb/s, 1270/1330nm, 20km, -20~80, with Digital Diagnostic Monitor

    SFP+Bidi,9.95 to 10.3Gb/s, 1330/1270nm, 20km, -20~80, with Digital Diagnostic Monitor

     

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