Hacked Gadgets Forum

June 24, 2015

AD9833 Waveform Generator

at 3:47 pm. Filed under Cool Gadgets


Julian Ilett has a look at a AD9833 Waveform Generator.  It looks like a nice device. Connect a microcontroller to it and use SPI to interface to it. You can set it up for square wave, sign wave or triangle wave all through SPI.  The AD9833 looks like it could be very useful whenever you need to easily generate specific frequencies. The module that Julian is using was under $7 with free shipping.


“Features and Benefits

  • Digitally Programmable Frequency and Phase
  • 12.65 mW Power Consumption at 3 V
  • 0 MHz to 12.5 MHz Output Frequency Range
  • 28-Bit Resolution (0.1 Hz @ 25 MHz Ref Clock)
  • Sinusoidal/Triangular/Square Wave Outputs
  • 2.3 V to 5.5 V Power Supply
  • No External Components Required
  • 3-Wire SPI Interface
  • Extended Temperature Range:
    –40°C to +105°C
  • Power-Down Option
  • 10-Lead MSOP Package
  • Qualified for automotive applications”


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