Patent ID: 7109762
Filing Date: 2006-09-19
Classification: H03K,H03L

Abstract:
1. A frequency-dividing circuit arrangement, comprising: a plurality of serially coupled frequency divider components each respectively having a selectively changeable division ratio changeable between the values two (2) and three (3), and which each have a signal input, a signal output and a changeover input, wherein the changeover input is configured to preselect the division ratio of the respective frequency divider component, the serially coupled frequency divider components forming a divider chain; wherein at least the last frequency divider component arranged at an output side of the divider chain further comprises a through-switching input configured to preselect a division ratio having the value one (1) for the last frequency divider component; the divider chain further comprising a feedback path linking the signal outputs of the frequency divider components to the changeover inputs of the frequency divider components, respectively; and a decoder circuit comprising a plurality of control outputs that are coupled to the changeover and through-switching inputs of the frequency dividers, respectively, wherein the control outputs are configured to drive the respective components as a function of a desired division value.