AD9830

PRODUCTION

Direct Digital Synthesizer, Waveform Generator

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Overview

  • +5 V Power Supply
  • 50 MHz Speed
  • On-Chip SINE Look-Up Table
  • On-Chip 10-Bit DAC
  • Parallel Loading
  • Power-Down Option
  • 72 dB SFDR
  • 250 mW Power Consumption
  • 48-Pin TQFP

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 50 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 power-down pin allows external control of a power-down mode. The part is available in a 48-pin TQFP package.


AD9830
Direct Digital Synthesizer, Waveform Generator
AD9830 Functional Block Diagram
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Documentation

Data Sheet 1

Application Note 23

Technical Articles 20

Product Highlight 1

Frequently Asked Question 1

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Tools & Simulations

ADIsimDDS (Direct Digital Synthesis)

ADIsimDDS uses mathematical equations to model and illustrate the overall performance of the selected device. ADIsimDDS calculates the required FTW, given the reference clock frequency and desired output frequency. This tool also models an estimate of the overall spectral performance, and allows the user to explore the effects of external reconstruction filters.

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