GENERAL DESCRIPTION
The AD9835 is a numerically-controlled oscillator employing a phase accumulator, a COS lookup table, and a 10-bit digital-to-analog converter integrated on a single CMOS chip. Modulation capabilities are provided for phase modulation and frequency modulation.
Clock rates of 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 serial interface. A power-down bit allows the user to power down the AD9835 when it is not in use; the power consumption reduces to 1.75 mW.
This part is available in a 16-lead TSSOP package.
Similar DDS products can be found at //www.analog.com/DDS.

FEATURES
   5 V power supply
   50 MHz speed
   On-chip COS lookup table
   On-chip, 10-bit DAC
   Serial loading
   Power-down option
   Temperature range: −40°C to +85°C
   200 mW power consumption
   16-Lead TSSOP

APPLICATIONS
   Frequency stimulus/waveform generation
   Frequency phase tuning and modulation
   Low power RF/communications systems
   Liquid and gas flow measurement
   Sensory applications: proximity, motion, and defect
      detection
   Test and medical equipment