如何使用带有FPGA的1000BASE-T 1.25 GBd小型可插拔收发器

您打算使用哪种设备？
通常LVDS信号仅需要接收器端的100欧姆电阻器。
一些FPGA（例如Virtex-5，V6，S6，S3A，S3E ......）具有用于LVDS的片上端接方案，称为DIFF_TERM。
LVDS XAPP：
http://www.xilinx.com/support/documentation/anbusinterfaceio_lvds.htm
你打算使用多点LVDS吗？
--------------------------------------------------
--------------------------------------------------
--------不要忘记回复，kudo，并接受为解决方案.----------------------------
--------------------------------------------------
---------------------------



以下为原文

Which device are you planning to use? Generally LVDS signals only needs and 100-ohm resistor at the receiver end. Some FPGAs (such as Virtex-5, V6, S6, S3A, S3E...) have the on-chip termination scheme for LVDS called DIFF_TERM.
 
LVDS XAPPs:
http://www.xilinx.com/support/documentation/anbusinterfaceio_lvds.htm
are you going to use multi-drop LVDS?
------------------------------------------------------------------------------------------------------------
Don't forget to reply, kudo, and accept as solution.
---------------------------------------------------------------------------------------------------------

要以1.25 Gbps运行，您需要使用GTP收发器。
看看ML-505评估
电路板原理图，了解它是如何连接到Virtex 5的SFP的.Spartan 6
LXT应该类似。
HTH，
的Gabor
-  Gabor



以下为原文

To run at 1.25 Gbps you need to use a GTP transceiver.  Take a look at the ML-505 eval
board schematics to see how this is hooked up to an SFP for Virtex 5.  Spartan 6
LXT should be similar.
 
HTH,
Gabor
-- Gabor

iguo写道：
您打算使用哪种设备？
通常LVDS信号仅需要接收器端的100欧姆电阻器。
一些FPGA（例如Virtex-5，V6，S6，S3A，S3E ......）具有用于LVDS的片上端接方案，称为DIFF_TERM。
LVDS XAPP：
http://www.xilinx.com/support/documentation/anbusinterfaceio_lvds.htm
你打算使用多点LVDS吗？
好吧，我把它缩小到了Virtex，因为我读到了一个家庭能够做LVDS的地方。
我不确定多点LVDS是什么。
我做了一个quickGooglesearch并发现“多点LVDS允许许多接收器由一个Virtex-E LVDS驱动器驱动。”
我想这意味着你可以使用LVDS从FPGA传输到多个接收器。
我应该再看一下吗？
-麦克风



以下为原文

 

iguo wrote:
Which device are you planning to use? Generally LVDS signals only needs and 100-ohm resistor at the receiver end. Some FPGAs (such as Virtex-5, V6, S6, S3A, S3E...) have the on-chip termination scheme for LVDS called DIFF_TERM.
 
LVDS XAPPs:
http://www.xilinx.com/support/documentation/anbusinterfaceio_lvds.htm
are you going to use multi-drop LVDS?

 
Well I've narrowed it down to Virtex as I read somewhere that family is capable of doing LVDS. 
 
I'm not sure what multi-drop LVDS is. I did a quick Google search and found that  "Multi-drop LVDS allows many receivers to be driven by one Virtex-E LVDS driver." I guess that means you can transmit from the FPGA using LVDS to multiple receivers. Should I look into this more? 
 
-mike

那取决于你自己的设计。
你打算设计总线接口吗？
如果是这样，你可以看看：
http://www.xilinx.com/support/documentation/application_notes/xapp231.pdf
http://www.xilinx.com/support/documentation/application_notes/xapp243.pdf
--------------------------------------------------
--------------------------------------------------
--------不要忘记回复，kudo，并接受为解决方案.----------------------------
--------------------------------------------------
---------------------------



以下为原文

Well it depends on your own design. Are you going to design a bus interface or not? 
If so, you can take a look at:
http://www.xilinx.com/support/documentation/application_notes/xapp231.pdf
http://www.xilinx.com/support/documentation/application_notes/xapp243.pdf
------------------------------------------------------------------------------------------------------------
Don't forget to reply, kudo, and accept as solution.
---------------------------------------------------------------------------------------------------------

wuchy143写道：
iguo写道：
您打算使用哪种设备？
通常LVDS信号仅需要接收器端的100欧姆电阻器。
一些FPGA（例如Virtex-5，V6，S6，S3A，S3E ......）具有用于LVDS的片上端接方案，称为DIFF_TERM。
LVDS XAPP：
http://www.xilinx.com/support/documentation/anbusinterfaceio_lvds.htm
你打算使用多点LVDS吗？
好吧，我把它缩小到了Virtex，因为我读到了一个家庭能够做LVDS的地方。
Spartan 3系列FPGA也支持LVDS。
----------------------------是的，我这样做是为了谋生。



以下为原文

 

wuchy143 wrote:
 

iguo wrote:
Which device are you planning to use? Generally LVDS signals only needs and 100-ohm resistor at the receiver end. Some FPGAs (such as Virtex-5, V6, S6, S3A, S3E...) have the on-chip termination scheme for LVDS called DIFF_TERM.
 
LVDS XAPPs:
http://www.xilinx.com/support/documentation/anbusinterfaceio_lvds.htm
are you going to use multi-drop LVDS?

 
Well I've narrowed it down to Virtex as I read somewhere that family is capable of doing LVDS. 
 

Spartan 3-family FPGAs also support LVDS.
 
----------------------------Yes, I do this for a living.