Sunday, April 28, 2013

Direct Digital Synthesis

I just bought one of these.   I hope to hook it up to an Arduino and turn it into a VFO.  Or a signal generator.  Six bucks!

http://www.amazon.com/dp/B009I7DR7E/ref=pe_175190_21431760_3p_M3T1_ST1_dp_1


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5 comments:

  1. Gene W3PMApril 28, 2013 at 9:23 AM

    Hi Bill,

    You can find Arduino code to use the AD9850 for WSPR or QRSS here:

    73,

    Gene W3PM

    ReplyDelete
  2. best e cig 2013April 28, 2013 at 9:25 AM

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    ReplyDelete
  3. Gene W3PMApril 28, 2013 at 9:30 AM

    Bill,

    I don't know what happened to the URL in my first comment.

    It is http://www.knology.net/~gmarcus/

    73,

    Gene W3PM

    ReplyDelete
  4. JanApril 29, 2013 at 4:10 AM

    Hello,

    eBay is full of those modules, in fact the strange Engrish sounds like directly lifted from many of the Chinese auctions selling this. Is this one from Amazon actually any good? (distortion, noise, etc.)

    Regards,

    Jan

    ReplyDelete
  5. 00hApril 29, 2013 at 11:57 AM

    FB Bill. The DDS modules are a lot of fun, and really easy to get running with an Arduino.

    http://www.usedradiomall.com/dds-update/

    After testing with an Arduino, I used the module as a basis for a carrier generator for an AM transmitter. I'm using an ATTiny84 to control it in this case.

    http://youtu.be/1hcdbFBY5VY

    73,
    W6CSN

    ReplyDelete