Patent ID: 11923856
Assignee: XILINX, INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 17:
18. A time-to-digital converter (TDC) comprising:
a first input;
a second input;
a delay line coupled to the first input and comprising a plurality of first delay elements coupled in series, each of the plurality of first delay elements having a delay time;
a plurality of delay lines comprising second delay elements having a first output, a second output, and at least one input coupled to the second input;
a first set of arbiters having first inputs, each first arbiter coupled to a first delay element in the delay line and having second inputs coupled to the first output of the plurality of second delay elements; and
a second set of arbiters having first inputs, each first arbiter coupled to a first delay element in the delay line and having second inputs coupled to the second output of the plurality of second delay elements, wherein a delay difference between the first output and the second output of the plurality of second delay elements is one-half of the delay time.