AD9831 Direct Digital Synthesizer Waveform Generator

Product Details

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 25 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.

A powerdown pin allows external control of a powerdown mode. The part is available in a 48-pin TQFP package.

Features and Benefits

  • 3 V/5 V Power Supply
  • 25 MHz Speed
  • On-Chip SINE Look-Up Table
  • On-Chip 10-Bit DAC
  • Parallel Loading
  • Powerdown Option
  • 72 dB SFDR
  • 125 mW (5 V) Power Consumption
  • 40 mW (3 V) Power Consumption
  • 48-Pin TQFP