Patent attributes
A delay interpolator includes pull-up devices, wherein each of the pull-up devices is coupled between a supply rail and a node, and pull-down devices, wherein each of the pull-down devices is coupled between the node and a ground. The delay interpolator also includes a first control circuit coupled to the pull-up devices, wherein the first control circuit has a first input configured to receive a first signal, a second input configured to receive a second signal that is delayed with respect to the first signal, and a control input configured to receive a first delay code; and. The delay interpolator further includes a second control circuit coupled to the pull-down devices, wherein the second control circuit has a first input configured to receive the first signal, a second input configured to receive the second signal, and a control input configured to receive a second delay code.
