How to 'Center' a Down-Dithering EconOscillator

Abstract: This application note describes how to use a down-dithering EconOscillator™ in an application that requires a centered spread-spectrum output frequency. In most instances, the amount of down-dither and/or output frequency is adjustable. Nonetheless, calculating the appropriate register values to achieve centered operation from a down-dithering EconOscillator is not always straightforward. An example shows how to compensate for the down-dither effects on an average output frequency.