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25兆赫直接数字合成器波形发生器AD9832数据表
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The AD9832 is a numerically controlled oscillator employing a phase accumulator， a sine look-up table， and a 10-bit digitalto-analog converter （DAC） integrated on a single CMOS chip. Modulation capabilities are provided for phase modulation and frequency modulation. Clock rates up to 25 MHz are supported. Frequency accuracy can be controlled to one part in 4 billion. Modulation is effected by loading registers through the serial interface. A power-down bit allows the user to power down the AD9832 when it is not in use， the power consumption being reduced to 5 mW （5 V） or 3 mW （3 V）。 The part is available in a 16-lead TSSOP package. Similar DDS products can be found at www.analog.com/DDS.
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