发明名称 |
Techniques for phase adjustment |
摘要 |
A dynamic phase alignment circuit includes a phase generator circuit having delay-locked loop circuits that generate periodic output signals. Each of the delay-locked loop circuits generates one of the periodic output signals in response to at least two periodic input signals. A multiplexer circuit selects a selected periodic signal from among the periodic input signals and the periodic output signals based on select signals. A phase detection circuit compares a phase of the selected periodic signal to a data signal to generate a phase detection signal. A control logic circuit generates the select signals. The control logic circuit adjusts the select signals based on changes in the phase detection signal to cause the multiplexer circuit to adjust the phase of the selected periodic signal. |
申请公布号 |
US8149038(B1) |
申请公布日期 |
2012.04.03 |
申请号 |
US20100729114 |
申请日期 |
2010.03.22 |
申请人 |
SUNG CHIAKANG;BUI JOHN HENRY;NGUYEN KHAI;WANG BONNIE I.;WANG XIAOBAO;ALTERA CORPORATION |
发明人 |
SUNG CHIAKANG;BUI JOHN HENRY;NGUYEN KHAI;WANG BONNIE I.;WANG XIAOBAO |
分类号 |
H03H11/16 |
主分类号 |
H03H11/16 |
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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