发明名称 |
HIGH RESOLUTION TIME-TO-DIGITAL CONVERTER |
摘要 |
<p>A time-to-digital converter (TDC) can have a resolution that is finer than the propagation delay of an inverter. In one example, a fractional-delay element circuit receives a TDC input signal and generates therefrom a second signal that is a time-shifted facsimile of a first signal. The first signal is supplied to a first delay line timestamp circuit (DLTC) and the second signal is supplied to a second DLTC. The first DLTC generates a first timestamp indicative of a time between an edge of a reference input signal to the TDC and an edge of the first signal. The second DLTC generates a second timestamp indicative of a time between the edge of the reference input signal and an edge of the second signal. The first and second timestamps are combined and together constitute a high-resolution overall TDC timestamp that has a finer resolution than either the first or second timestamps.</p> |
申请公布号 |
WO2009111496(A1) |
申请公布日期 |
2009.09.11 |
申请号 |
WO2009US35913 |
申请日期 |
2009.03.03 |
申请人 |
QUALCOMM INCORPORATED;SUN, BO;YANG, ZIXIANG |
发明人 |
SUN, BO;YANG, ZIXIANG |
分类号 |
H03M1/20;H03M1/50 |
主分类号 |
H03M1/20 |
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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