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accumulator-slide2

The accumulator is the heart of a direct digital synthesis system. The role of the accumulator is to establish the frequency of the sinusoidal output signal of the DDS. It can be seen on this slide that the accumulator relies on the system clock as its timing source. The frequency of the system clock and the value of the FTW are used by the accumulator to establish the DDS output frequency as explained in the slides that follow.

PTM Published on: 2012-06-06