Time to digital converter and applications thereof
First Claim
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1. A time to digital converter, comprising:
- a sampling module configured to sample an input signal at multiple different instances of time;
a transition detection module comprising a plurality of comparison elements, each comparison element configured to process the sampled input signal at successive instances of time so as to detect transitions in the input signal in terms of time;
an output module comprising multiple parallel outputs with each output operable to output a detection signal indicating a detected transition in the input signal; and
a counter circuit for each output of said multiple parallel outputs, wherein a value of each counter circuit is incremented in response to receipt of the detection signal.
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Abstract
A time to digital converter includes a sample module operable to sample an input signal at multiple different instances of time. A transition detection module, formed of comparison elements, processes the sampled input signal at successive time instances so as to detect transitions in the input signal in terms of time. An output module generates detected transitions in the input signal on multiple parallel outputs.
63 Citations
35 Claims
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1. A time to digital converter, comprising:
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a sampling module configured to sample an input signal at multiple different instances of time; a transition detection module comprising a plurality of comparison elements, each comparison element configured to process the sampled input signal at successive instances of time so as to detect transitions in the input signal in terms of time; an output module comprising multiple parallel outputs with each output operable to output a detection signal indicating a detected transition in the input signal; and a counter circuit for each output of said multiple parallel outputs, wherein a value of each counter circuit is incremented in response to receipt of the detection signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A time to digital converter, comprising:
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a sampling module configured to sample an input signal at multiple different instances of time; a transition detection module comprising a plurality of comparison elements, each comparison element configured to process the sampled input signal at successive instances of time so as to detect transitions in the input signal in terms of time; an output module comprising multiple parallel outputs operable to output detection signals indicating in parallel said detected transitions in the input signal, wherein each of said multiple parallel outputs comprises a synchronous pipelined shift register so as to increase the dynamic range of the time to digital converter. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification