发明名称 |
Timing calibration circuit for time-interleaved analog-to-digital converter and associated method |
摘要 |
A timing calibration circuit for a time-interleaved analog-to-digital converter (ADC) is provided. The timing calibration circuit includes a correlation unit, an adaptive filter and a delay cell. The correlation unit generates a first correlation coefficient according to a first zero-crossing possibility distribution between a first digital data and a second digital data, and generates a second correlation coefficient according to a second zero-crossing possibility distribution between the second digital data and a third digital data. The adaptive filter generates a predicted time skew according to a difference between the first correlation coefficient and the second correlation coefficient. The delay cell calibrates a clock signal of the ADC according to the predicted time skew. |
申请公布号 |
US8604954(B2) |
申请公布日期 |
2013.12.10 |
申请号 |
US201213596744 |
申请日期 |
2012.08.28 |
申请人 |
CHEN CHUN-JEN;TSAI TSUNG-HENG;TANG TZU-YI;INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE |
发明人 |
CHEN CHUN-JEN;TSAI TSUNG-HENG;TANG TZU-YI |
分类号 |
H03M1/10 |
主分类号 |
H03M1/10 |
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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