发明名称 |
Half-rate linear quardrature phase detector for clock recovery |
摘要 |
A half-rate linear phase detector is particularly well-suited to clock data recovery in a serial data interface. The phase detector uses a quadrature clock to process different portions of the incoming data with different phases of the clock. The resulting component signals can be combined to provide the expected UP and DOWN phase detector output control signals. The phase detector output signals are balanced and of uniform width, minimizing oscillator control signal ripple in the clock data recovery circuit, while the linearity of the phase detector makes its output predictable.
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申请公布号 |
US6970020(B1) |
申请公布日期 |
2005.11.29 |
申请号 |
US20030739446 |
申请日期 |
2003.12.17 |
申请人 |
ALTERA CORPORATION |
发明人 |
MEI HAITAO;WANG SHOUJUN;BAIG MASHKOOR;BEREZA BILL;KWASNIEWSKI TAD |
分类号 |
G01R25/00;H03D13/00;(IPC1-7):G01R25/00 |
主分类号 |
G01R25/00 |
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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