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Abdu117/Direct-Digital-Frequency-Synthesizer-DDFS-

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Project Objective:

Direct digital synthesis (DDS) is a method of producing an analog waveform—usually a sine wave—by generating a time-varying signal in digital form and then performing a digital-to-analog conversion. Because operations within a DDS device are primarily digital, it can offer fast switching between output frequencies, fine frequency resolution, and operation over a broad spectrum of frequencies. A direct digital synthesizer operates by storing the points of a waveform in digital format, and then recalling them to generate the waveform. The rate at which the synthesizer completes one waveform then governs the frequency.

Schematic Diagram (Circuit Diagram):

1

Generated Waves:

1. Square wave.

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2. Sine wave.

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3. Single positive triangular wave.

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4. Single negative triangular wave.

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5. Double sided triangular wave.

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6. Single sided positive staircase wave.

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7. Single sided negative staircase wave.

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8. Double sided staircase wave.

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