发明授权
- 专利标题: Voltage mode transmitter equalizer
- 专利标题(中): 电压模式变送器均衡器
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申请号: US13260549申请日: 2010-03-26
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公开(公告)号: US08633733B2公开(公告)日: 2014-01-21
- 发明人: Wayne D. Dettloff , John W. Poulton , John M. Wilson
- 申请人: Wayne D. Dettloff , John W. Poulton , John M. Wilson
- 申请人地址: US CA Sunnyvale
- 专利权人: Rambus Inc.
- 当前专利权人: Rambus Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Hamilton, Brook, Smith & Reynolds, P.C.
- 国际申请: PCT/US2010/028871 WO 20100326
- 国际公布: WO2010/111619 WO 20100930
- 主分类号: H03K19/094
- IPC分类号: H03K19/094
摘要:
A voltage mode transmitter equalizer has high efficiencies, yet consumes substantially constant supply current from the power supply and provides constant back-match impedance. The voltage mode transmitter equalizer is configured such that the output voltage of the signal to be output on a pair of transmission lines can be controlled according to the input data, but its return impedance is substantially matched to the differential impedance of the transmission lines and it draws substantially constant supply current from the power supply regardless of the output voltage of the signal. Further, an equalizer for a voltage-mode transmitter provides fine-granularity equalization settings by employing a variable pull-up conductance and a variable pull-down conductance. Conductance is varied by selectively enabling a plurality of conductance channels, at least some of which have resistance values that are distinct from one another.
公开/授权文献
- US20120025800A1 VOLTAGE MODE TRANSMITTER EQUALIZER 公开/授权日:2012-02-02