发明授权
- 专利标题： Programmable on-chip differential termination impedance
- 专利标题（中）： 可编程片上差分终端阻抗
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申请号： US11086979申请日： 2005-03-21
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公开(公告)号： US07205788B1公开(公告)日： 2007-04-17
- 发明人: Bonnie I. Wang , Chiakang Sung , Khai Nguyen
- 申请人： Bonnie I. Wang , Chiakang Sung , Khai Nguyen
- 申请人地址： US CA San Jose
- 专利权人： Altera Corporation
- 当前专利权人： Altera Corporation
- 当前专利权人地址： US CA San Jose
- 代理机构： Townsend and Townsend and Crew LLP
- 主分类号： H03K19/003
- IPC分类号： H03K19/003
摘要：
The circuits and methods are provided for impedance termination on an integrated circuit. A network of resistors are formed on an integrated circuit (IC) to provide on-chip impedance termination to differential input/output (IO) pins. Transistors are coupled in the network of termination resistors. The transistors provide additional termination impedance to the differential IO pins. The transistors can be turned ON or OFF separately to change the impedance termination.
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