发明名称 |
Transmit based equalization using a voltage mode driver |
摘要 |
A driver circuit. In one embodiment, the driver circuit includes a plurality of pull-up circuits and a plurality of pull-down circuits. The driver circuit also includes control logic that is coupled to activate/deactivate the pull-up and pull-down circuits. The driver circuit may perform emphasized signal transmissions having a voltage swing of a first magnitude or de-emphasized signal transmissions having a voltage swing of a second magnitude, wherein the first magnitude is greater than the second magnitude. The control logic is further configured to activate and/or deactivate pull-up and/or pull-down circuits such that the driver circuit output impedance in the emphasized mode is substantially equal to the output impedance in the de-emphasized mode.
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申请公布号 |
US7227382(B1) |
申请公布日期 |
2007.06.05 |
申请号 |
US20050048440 |
申请日期 |
2005.02.01 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
TALBOT GERALD R.;KUMAR ROHIT;HALE STEPHEN C. |
分类号 |
H03K19/0175 |
主分类号 |
H03K19/0175 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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