SFP+-10GBASE-T 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 pin for link indication. If pull up SFP’s TX_DISABLE pin, PHY IC be reset.
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 |
For detail, please check the datasheet .
