LMT-XG-T

LMT-XG-T

10G BASE-T Copper SFP+ Transceiver

Rate Matching mode
  • Support 10Gbase-T / 5Gbase-T / 2.5Gbase-T / 1000base-T on line port
  • Support 10Gbase-R on host port
  • Hot-pluggable SFP footprint
  • Compact RJ-45 connector assembly
  • RoHS compliant and lead-free
  • Single +3.3V power supply
  • 10 Gigabit Ethernet over Cat 6a cable
  • Ambient Operating temperature:-40°C to +85°C

Model

LMT-GE-MM850

LMT-MM850

Series

LMT-GE-MM850

LMT-GE-MM850

LMT-GE-MM850

LMT-GE-MM850

Hightlight Features

  • SFP package with LC connector
  • 850nm VCSEL Laser and PIN photo detector
  • Up to 550m transmission on 50/125 um MMF
  • +3.3V single power supply
  • LVPECL compatible data input/output interface
  • Low EMI and excellent ESD protection

  • laser safety standard IEC-60825 compliant
  • Compatible with RoHS 
  • Digital Diagnostic SFF-8472 compliant

PRODUCT DESCRIPTION

SFP+-10GBASE-TI-RM Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA) . They are compatible with the 10Gbase-T / 5Gbase-T / 2.5Gbase-T / 1000base-T standards as specified in IEEE Std 802.3 . SFP+-10GBASE-T uses the SFP’s RX_LOS(must be pulled up on host) pin for link indication. If pull up or open SFP’s TX_DISABLE pin,  PHY IC be reset.

Cable Length

Line Port

Cable

Reach

Host Port

10Gbase-T

CAT6A F/FTP

30m

10GBase-R

5Gbase-T

CAT5E

50m

10GBase-R

2.5Gbase-T

CAT5E

50m

10GBase-R

1000base-T

CAT5E

100m

10GBase-R

100base-Tx

CAT5E

100m

10GBase-R

 

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.

 

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 3.6 V. MOD_DEF(0) pulls line low to indicate module is plugged in.

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+3.3V Volt Electrical Power Interface

The SFP+-10GBASE-T 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

 

750

1000

mA

 

Input Voltage

 Vcc

3.13

3.3

3.47

V

Referenced to GND

Maximum Voltage

Vmax

 

 

4

V

 

 

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

 

175

 

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

1

 

10

Gb/sec

IEEE 802.3 compatible.

See Notes 1,2 below

 

Notes:

Clock tolerance is +/- 50 ppm

 

EEPROM INFORMATION(A0)

Addr

Field Size

(Bytes)

Name of Field

HEX

Description

0

1

Identifier

03

SFP

1

1

Ext. Identifier

04

MOD4

2

1

Connector

07

LC

3-10

8

Transceiver

00 00 00 00 00 00 00 00

Transmitter Code

11

1

Encoding

06

64B66B

12

1

BR, nominal

67

10000M bps

13

1

Reserved

00

 

14

1

Length (9um)-km

00

 

15

1

Length (9um)

00

 

16

1

Length (50um)

08

80

17

1

Length (62.5um)

03

30

18

1

Length (copper)

00

 

19

1

Reserved

1E

30

20-35

16

Vendor name

57 49 4E 54 4F 50 20 20

20 20 20 20 20 20 20 20

WINTOP

36

1

Reserved

00

 

37-39

3

Vendor OUI

00 00 00

 

40-55

16

Vendor PN

xx xx xx xx xx xx xx xx

xx xx xx xx xx xx xx xx

ASC II

56-59

4

Vendor rev

31 2E 30 20

V1.0

60-61

2

Wavelength

00 00

850nm

62

1

Reserved

00

 

63

1

CC BASE

XX

Check sum of byte 0~62

64-65

2

Options

00 1A

LOS, TX_DISABLE, TX_FAULT

66

1

BR, max

00

 

67

1

BR, min

00

 

68-83

16

Vendor SN

00 00 00 00 00 00 00 00

00 00 00 00 00 00 00 00

Unspecified

84-91

8

Vendor date code

XX XX XX 20

Year, Month, Day

92-94

3

Reserved

XX XX XX

 

95

1

CC_EXT

XX

Check sum of byte 64~94

96-255

160

Vendor specific

 

 

 

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 WINTOP 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

I 2C Clock Rate

 

0

 

200,000

Hz

 

 

Recommended Application Circuit

Outline Dimensions (mm)