发明申请
US20060220681A1 Methods and apparatus to DC couple LVDS driver to CML levels
有权
将LVDS驱动程序直接耦合到CML级别的方法和设备
- 专利标题: Methods and apparatus to DC couple LVDS driver to CML levels
- 专利标题(中): 将LVDS驱动程序直接耦合到CML级别的方法和设备
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申请号: US11098832申请日: 2005-04-04
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公开(公告)号: US20060220681A1公开(公告)日: 2006-10-05
- 发明人: Wilson Wong , Tim Hoang , Sergey Shumarayev , Rakesh Patel , Simardeep Maangat
- 申请人: Wilson Wong , Tim Hoang , Sergey Shumarayev , Rakesh Patel , Simardeep Maangat
- 专利权人: ALTERA CORPORATION
- 当前专利权人: ALTERA CORPORATION
- 主分类号: H03K19/094
- IPC分类号: H03K19/094
摘要:
Circuitry and methods are provided for an LVDS-like transmitter that may be able to DC couple to a receiver having a CML termination scheme. Replacing the common mode voltage source of an LVDS transmitter with a resistive pulldown to ground may allow the transmitter to interface in a DC coupled fashion with a CML receiver. Further, the resistive pulldown may be programmable. This LVDS-like transmitter may be able to support a wider customer base by allowing it to DC couple to a wider range of termination voltage levels, such as CML termination voltage levels.
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