AD9835 Waveform Generator 

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. Modu-lation 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.

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 

Datasheet