| 发明名称 |
Circuits and methods for adjusting the voltage swing of a signal |
| 摘要 |
A driver circuit includes unit slice circuits that generate an output data signal based on an input data signal. The driver circuit reduces a voltage swing of the output data signal without changing a termination resistance of the driver circuit in response to decreasing a number of the unit slice circuits that generate the output data signal based on the input data signal. |
| 申请公布号 |
US9231631(B1) |
申请公布日期 |
2016.01.05 |
| 申请号 |
US201414311192 |
申请日期 |
2014.06.20 |
| 申请人 |
Altera Corporation |
发明人 |
Ke Yanjing;Hoang Tim Tri |
| 分类号 |
H03K19/003;H03K19/0175;H04B1/10;H04L25/02;H03K19/00 |
主分类号 |
H03K19/003 |
| 代理机构 |
|
代理人 |
Cahill Steven J. |
| 主权项 |
1. A driver circuit comprising:
a first subset of unit slice circuits that generate an output data signal based on an input data signal; and a second subset of unit slice circuits that generate constant current affecting a voltage swing of the output data signal based on a fixed voltage, wherein the driver circuit reduces the voltage swing of the output data signal without changing a termination resistance of the driver circuit in response to decreasing a number of the unit slice circuits in the first subset that generate the output data signal based on the input data signal and in response to increasing a number of the unit slice circuits in the second subset. |
| 地址 |
San Jose CA US |
