Signal Generation Applications
Need to create a low distortion sine wave at some arbitrary frequency? How about an arbitrary waveform to model some biological process?
Our DSP-8300 and DSP-9600 families can output very low distortion sine waves at just about any frequency you want from 20 - 20000 Hz within
the accuracy of a crystal time base.
 Here are a few examples:
- 1004 Hz or 997 Hz Reference Oscillator
- DTMF and other Signaling Tones
- EKG simulations
- A - 440 Hz Musical Pitch Reference
- Quadrature Signal (sine & cosine) Pairs
- Swept Test Signals
- Random Noise Generation
Featured Article:
"A Low Distortion, High Accuracy Signal Generator Using the ADSP-218x or ADSP-219x Families"
by Al Clark, President, Danville Signal Processing, Inc.
In the Analog Devices publication, The DSP Connection™ 2002, we
describe a variety of phase-accumulator methods for generating complex sinusoidal signals. Download the PDF Version of the Article here.
At the end of the article, we promised source code examples as well as a tool to generate cosine and sine coefficient files. The examples
include several very simple full table lookups as well as a double precision 1 Hz resolution sinusoidal audio oscillator. You may
incorporate or modify any of these examples for your own projects.
The examples have been tested in our DSP-8300 DSP Function
Module . A fully functioning demonstration is included as part of our DSP-8300 Developer's
Kit . For example, you can use the Development System as a 1004 Hz calibration oscillator.
Download the signal_generator.zip here.
Related Products and Information:
• DSP-8300 Developer's
Kit
• DSP-8300 DSP Function Module Data Sheet
• DSP-8300 DSP Function
Module Price List
• Article on Signal Generation Using the ADSP-218x
or ADSP-219x Families
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