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概述
10/100/1000 BASE-T铜质小型可插拔（SFP）收发器基于SFP多源协议（MSA）。它们与IEEE Std 802.3中规定的千兆以太网标准兼容。10/100/1000BASE-T物理层IC（PHY）可以通过I2C访问，允许访问所有PHY设置和功能。
10/100/1000BASE-T与1000BASE-X自动协商兼容，但没有链路指示功能（RX_LOS内部接地）。10/100/1000BASE-T铜小型可插拔（SFP）收发器基于SFP多源协议（MSA）。它们与IEEE Std 802.3中规定的千兆以太网标准兼容。10/100/1000BASE-T物理层IC（PHY）可以通过I2C访问，允许访问所有PHY设置和功能。
10/100/1000BASE-T与1000BASE-X自动协商兼容，但没有链路指示功能（RX_LOS内部接地）。
特色
高达1.25 Gb/s的双向数据链路
热插拔SFP占用空间
低功耗（典型值为1.05W）
紧凑型RJ-45连接器组件
全金属外壳，降低电磁干扰
符合RoHS标准，无铅
单+3.3V电源
具有SGMII接口的主机系统中10/100/1000 BASE-T操作
通过CAT 5电缆的1.25千兆以太网
外壳工作温度：0°C至+70°C
SFP到主机连接器引脚输出
图1，主板连接器块引脚编号和名称图
|
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 |
备注：
1.电路接地连接到底盘接地
2.主板上应使用4.7k-10k欧姆的电压将MOD_DEF（0）拉至2.0 V至3.6 V之间。MOD_DEF将线路拉低，表示模块已插入。
3.LVTTL兼容，最大电压2.5V。
|
+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 |
警告：功耗和浪涌电流高于SFP MSA中的规定值
低速信号
MOD_DEF（1）（SCL）和MODI_DEF（2）（SDA）是开漏CMOS信号（见第七节“串行通信协议”）。MOD_DEF（1）和MOD_DEF
|
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速度信号
所有高速信号都是内部交流耦合的.
|
Parameter |
Symbol |
Typ. |
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 |
|
一般规范
|
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 |
备注：
1.时钟容差为+/-50ppm
2.默认情况下，10/100/1000 BASE-T是首选主模式下的全双工设备
3.启用自动交叉检测。不需要外部交叉电缆
4.10/100/1000 BASE-T操作要求主机系统具有无时钟的SGMII接口。
|
Environmental Specifications |
|||||
|
Parameter |
Symbol |
Min |
Max |
Unit |
Notes |
|
Case Operating Temperature |
Tcase |
0 |
70 |
°C |
|
|
-10 |
80 |
°C |
|||
|
-40 |
85 |
°C |
|||
|
Storage Temperature |
Tsto |
-40 |
85 |
°C |
Ambient temperature |
串行通信协议
10/100/1000BASE-T支持SFP MSA中概述的2线串行通信协议。它使用地址为A0h的Atmel AT24C02B 256字节EEPROM。
|
Serial Bus Timing Requirements |
||||||
|
Parameter |
Symbol |
Min |
Typ |
Max |
Unit |
Notes/Conditions |
|
I 2 C Clock Rate |
|
0 |
|
100,000 |
Hz |
|
订单信息
|
型号 |
描述 |
|
X81RJ10-C |
商用1.25Gbps SFP RJ45光收发器100M，
|
