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AD9831:  25 MHZ PARALLEL LOADING DDS WITH ON-CHIP 10-BIT DAC

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 ...More

AD9831:  25 MHZ PARALLEL LOADING DDS WITH ON-CHIP 10-BIT DAC

Product Description

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.

RESOURCES & TOOLS

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  • 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
  • Compliance Range (V): 1.5V
  • FS Iout (mA nom): 4mA
  • I Supply total (max): 15mA
  • I/O Interface: Parallel
  • Master fclk : 25MHz
  • Nominal Supply (V): Single(+3.3),Single(+3.6),Single(+5)
  • On-Board Comparator: No
  • REFCLK Multiplier: No
  • Resolution (Bits): 10bit

Functional Block Diagram for AD9831

OF NOTE ...

Visit the AD9831 DDS Device Configuration Assistant … this design tool for programming the AD9831 makes calculating codewords and harmonics images in the AD9831 easy!

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Model
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For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.