10/100/1000M Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA).
10/100/1000M Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA).
10/100/1000M Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA). They are compatible with the Gigabit Ethernet and 10/100/1000BASE-T standards as specified in IEEE Std 802.3. It uses the SFP's RX_LOS pin for link indication. If pull up SFP's TX_DISABLE pin, IC be reset.
Features
● Up to 1.25 Gb/s bi-directional data links
● Hot-pluggable SFP footprint
● 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
● 10/100/1000 BASE-T operation in host systems with 1000BASE-X interface
● 1.25 Gigabit Ethernet over Cat 5 cable
● Ambient Operating temperature: 0°C to +70°C
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 |
Loss of Signal indication. Logic 0 indicates normal operation. |
|
|
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.
Figure 1. Diagram of host board connector block pin numbers and names
+3.3V Volt Electrical Power Interface
The SFP-T -AUTO 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 |
|
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
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 |
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 SFP-T-AUTO-SERDES is a full duplex device in preferred mode
3. Automatic crossover detection is enabled. External crossover cable is not required
Environmental Specifications
|
Environmental Specifications |
||||||
|
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Notes/Conditions |
|
Operating Temperature |
Top |
0 |
|
70 |
°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 |
|
I 2C Clock Rate |
|
0 |
|
200,000 |
Hz |
|
| Ordering Information |
|---|
| Date | Version | Description | Download |
|---|---|---|---|
| 2024-05-06 | V2.0 | Datasheet_10 100 1000Base-T, Copper SFP Transceiver_LA-OT-GTA-RJ45_V2.Y.pdf | |
| Photo | Model | Description |
|---|
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