发明名称 |
Method and apparatus for generating a quadrature clock |
摘要 |
A quadrature clock generating apparatus includes a clock generator providing a double clock having a frequency that is twice that of a received reference clock. Divider circuitry is coupled to provide an alignment signal having half the frequency of the double clock. A recovery circuit recovers a first clock and a second clock from the double clock in accordance with the alignment signal. The first and second clocks have substantially a 90° phase difference.
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申请公布号 |
US6917232(B2) |
申请公布日期 |
2005.07.12 |
申请号 |
US20030733790 |
申请日期 |
2003.12.10 |
申请人 |
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. |
发明人 |
WYATT PERRY M.;BERKRAM DANIEL A.;NEWSOME DAVID T. |
分类号 |
G06F1/06;G06F1/04;G06F1/10;H03H11/16;H03K3/00;H03K5/00;H03K5/15;H03L7/06;H03L7/183;H04L7/04;(IPC1-7):H03H11/16 |
主分类号 |
G06F1/06 |
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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