Analog Devices, Inc.

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.