This DDS device is a numerically controlled oscillator employing
a phase accumulator, a sine look-up table and a
10-bit D/A converter integrated on a single CMOS chip.
Modulation capabilities are provided for phase modulation
and frequency modulation.
Clock rates up to 50 MHz are supported. Frequency accuracy
can be controlled to one part in 4 billion. Modulation
is effected by loading registers through the parallel microprocessor
interface .
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