发明授权
- 专利标题: Efficient N-factorial differential signaling termination network
- 专利标题(中): 高效N阶因子差分信令终止网络
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申请号: US13832990申请日: 2013-03-15
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公开(公告)号: US09071220B2公开(公告)日: 2015-06-30
- 发明人: Shoichiro Sengoku , George Alan Wiley , Chulkyu Lee , Joseph Cheung
- 申请人: QUALCOMM Incorporated
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理机构: Loza & Loza LLP
- 主分类号: H03K17/16
- IPC分类号: H03K17/16 ; H03H2/00 ; H04B1/04 ; H04L25/02 ; H04L25/14
摘要:
A termination network circuit for a differential signal transmitter comprises a plurality of n resistance elements and a plurality of differential signal drivers. A first end of each of the resistance elements is coupled at a common node, where n is an integer value and is the number of conductors used to transmit a plurality of differential signals. Each differential signal driver may include a positive terminal driver and a negative terminal driver. The positive terminal driver is coupled to a second end of a first resistance element while the negative terminal driver is coupled to a second end of a second resistance element. The positive terminal driver and the negative terminal driver are separately and independently switchable to provide a current having a magnitude and direction. During a transmission cycle each of the resistance elements has a current of a different magnitude and/or direction than the other resistance elements.
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