发明名称 |
GATED RING OSCILLATOR FOR A TIME-TO-DIGITAL CONVERTER WITH SHAPED QUANTIZATION NOISE |
摘要 |
Described is a compact, lower power gated ring oscillator time-to-digital converter that achieves first order noise shaping of quantization noise using a digital implementation. The gated ring oscillator time-to-digital converter includes a plurality of delay stages configured to enable propagation of a transitioning signal through the delay stages during an enabled state and configured to inhibit propagation of the transitioning signal through the delay stages during a disabled state. Delay stages are interconnected to allow sustained transitions to propagate through the delay stages during the enabled state and to preserve a state of the gated ring oscillator time-to-digital converter during the disabled state. The state represents a time resolution that is finer than the delay of at least one of the delay stages. A measurement module determines the number of transitions of the delay stages.
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申请公布号 |
US2008069292(A1) |
申请公布日期 |
2008.03.20 |
申请号 |
US20070854615 |
申请日期 |
2007.09.13 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
STRAAYER MATTHEW;PERROTT MICHAEL |
分类号 |
H03K23/54;H03K3/00 |
主分类号 |
H03K23/54 |
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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