| 摘要 |
High-resolution low-interconnect phase rotator. A signal may be generated having any desired phase (as determined by the step size employed). First and second control signals select a sector (e.g., the range from 0° to 360° is divided into a number of sectors) and a particular phase within that sector. Generally, this range from 0° to 360° is uniformly divided so that each sector is the same. However, if desired, there can alternatively be differences in the sizes of each of the sectors. The use of these two sets of controls signals (one for selecting the sector and one for selecting the particular phase within the sector) allows for very few control signals. N-channel metal oxide semiconductor field-effect transistor (N-MOSFET) based switches and differential pairs of transistors or alternatively p-channel metal oxide semiconductor field-effect transistor (P-MOSFET) based switches and differential pairs of transistors can be employed.
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