Precise Frequency Generation with Digital Modulation Using Direct Digital Synthesis

  • Johann L. Ong Advance Science and Technology Institute, Department of Science and Technology

Abstract

Frequency synthesis or generation of baseband continuous wave signals is usually implemented through traditional analog techniques using tuned LC tank circuits, quartz crystals or phase-locked loops. This paper discusses a digital alternative, direct digital synthesis (DDS), and compares it with analog methods. A commercially available DDS chip and the results of a DDS system implemented using it are also presented.
Published
2021-09-01
Section
Articles