| 发明名称 |
Semiconductor device |
| 摘要 |
A semiconductor device includes a first variable delay circuit that delays inputted multiphase signals according to a delay control signal, a selection circuit that selects and outputs two signals of signals output from the first variable delay circuit, a second variable delay circuit that delays one of the two signals according to the delay control signal, a phase comparison circuit that compares a phase of a signal outputted by the second variable delay circuit with a phase of the other of the two signals, a filter that updates the delay control signal according to a signal outputted by the phase comparison circuit, and a delay control signal selection circuit that provides the delay control signal to the first variable delay circuit or the second variable delay circuit. |
| 申请公布号 |
US9490788(B2) |
申请公布日期 |
2016.11.08 |
| 申请号 |
US201514856432 |
申请日期 |
2015.09.16 |
| 申请人 |
SK HYNIX INC.;KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
Kim Yong-Jo;Cho SeongHwan |
| 分类号 |
H03L7/06;H03K5/135;H03L7/081;H03K5/00 |
主分类号 |
H03L7/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A semiconductor device comprising:
a first variable delay circuit that delays inputted multiphase signals according to a delay control signal; a selection circuit that selects two signals of signals output from the first variable delay circuit; a second variable delay circuit that delays one of the two signals according to the delay control signal; a phase comparison circuit that compares a phase of a signal outputted by the second variable delay circuit to a phase of the other of the two signals; a filter that updates the delay control signal according to a signal outputted by the phase comparison circuit; and a delay control signal selection circuit that provides the delay control signal to the first variable delay circuit or the second variable delay circuit. |
| 地址 |
Icheon KR |
