Semiconductor device

摘要

A semiconductor device may include a delay line including a first group of unit delay cells and a second group of unit delay cells. The first group of unit delay cells and the second group of unit delay cells may be configured for delaying a phase of a clock by a unit cycle of a reference frequency. The reference frequency may serve as a reference for distinguishing between a first frequency and a second frequency. The semiconductor device may include a reservoir capacitor located adjacent to one or more of the unit delay cells of the first group. Only the first group of the unit delay cells may be used to delay the phase of the clock.

主权项

1. A semiconductor device comprising:
a plurality of delay lines each comprising a plurality of unit delay cells, wherein the plurality of unit delay cells are divided into a first group of unit delay cells and a second group of unit delay cells, wherein the first group of the unit delay cells are used to delay a phase of a clock by a unit cycle of a reference frequency, and the second group of the unit delay cells are not used to delay the phase of the clock by the unit cycle of the reference frequency, wherein the reference frequency serves as a reference for distinguishing between a first frequency and a second frequency, and wherein the first frequency is a frequency higher than the reference frequency, and the second frequency is a frequency lower than the reference frequency, and a reservoir capacitor selectively located adjacent to only one or more of the unit delay cells of the first group, and wherein the one or more of the unit delay cells of the first group delays the clock having the first frequency.