Editing Direct digital synthesis (section)

{{Short description|Method for creating waveforms}}
[[File:DDS function generator.jpg|thumb|250px|A DDS [[function generator]].]]
'''Direct digital synthesis''' ('''DDS''') is a method employed by [[frequency synthesizer]]s used for creating arbitrary [[waveform]]s from a single, fixed-frequency reference clock. DDS is used in applications such as [[signal generator|signal generation]], [[local oscillator]]s in communication systems, [[function generator]]s, mixers, [[modulator]]s,<ref name="AD_app"/> [[synthesizer|sound synthesizers]] and as part of a digital [[phase-locked loop]].<ref name="RFDesign July 2007"/>