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1. Feature:
l Up to 1.25 Gb/s bi-directional data links
l Hot-pluggable SFP footprint
l Low power dissipation(1.05W typical)
l Compact RJ-45 connector assembly
l Fully metal enclosure, for lower EMI
l RoHS compliant and lead-free
l Single +3.3V power supply
l 10/100/1000 BASE-T operation in host systems with SGMII interface
l 1.25 Gigabit Ethernet over Cat 5 cable
l Case operating temperature：
Commercial: 0°C to +70°C
Extended: -10°C to +80°C
Industrial: -40°C to +85°C
2.PRODUCT DESCRIPTION
10/100/1000 BASE-T Copper Small Form Pluggable (SFP) transceivers are based on the SFP Multi Source Agreement (MSA) . They are compatible with the Gigabit Ethernet standards as specified in IEEE Std 802.3 .The 10/100/1000 BASE-T physical layer IC (PHY) can be accessed via I2C, allowing access to all PHY settings and features.
10/100/1000 BASE-T is compatible with 1000BASE-X auto-negotiation, but does not have a link indication feature (RX_LOS is internally grounded).
3. SFP to Host Connector Pin Out
Figure 1. Diagram of host board connector block pin numbers and names
Pin | Symbol | Name/Description | Ref. |
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. Not supported on WT-SFP-T.
4. 3.3V Volt Electrical Power Interface
The 10/100/1000 BASE-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 | 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
5. 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 |
6. 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 | ||
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, 10/100/1000 BASE-T is a full duplex device in preferred master mode
3. Automatic crossover detection is enabled. External crossover cable is not required
4. 10/100/1000 BASE-T operation requires the host system to have an SGMII interface with no clocks.
8. Environmental Specifications
Environmental Specifications | ||||||
Parameter | Symbol | Min | Typ | Max | unit | Notes/Conditions |
Case Operating Temperature | Tcase | 0 | 70 | °C | XGSF-T12-02-2 | |
-10 | 80 | °C | XGSF-T12-02-2E | |||
-40 | 85 | °C | XGSF-T12-02-2A | |||
Storage Temperature | Tsto | -40 | 85 | °C | Ambient temperature | |
9. Serial Communication Protocol
10/100/1000 BASE-T support the 2-wire serial communication protocol outlined in the SFP MSA. It uses 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 | |||
10. Mechanical Specifications (Unit:mm)
