Direct Digital Frequency Synthesis has given us a whole new technology of signal generation,
modulation and control. PLL frequency synthesizers are therefore becoming ubiquitous. This
page provides links to a number of DDS IC manufacturers, DDS Application examples, and to
some background theory relating to DDS technology.
Communications: Using Direct Digital Synthesis
—This tutorial from Rice University introduces Direct Digital Synthesis with prepared code that
transmits arbitrary input as an FM radio signal. The module then explains how to program the DDS
hardware and concludes with a simple Frequency Shift Keying exercise.
Identifying Sources of Jitter, by Johnnie Hancock, Agilent Technologies.
Euro Designcon 2004 paper, October 2004. PDF file, 2.1M. Not strictly DDS, but interesting
and has DDS ramifications.
This 175 page book contains data sheets for all of Qualcomm's ASIC
synthesizer products plus three very good application notes on DDS theory and technology
-- it's a "must have / must read" reference!
DDS Theory
