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

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.
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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℃

We could not find any corresponding parameters, please add them to the properties table

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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