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AD9834 No sine wave

Question asked by mihal on Sep 13, 2013
Latest reply on Sep 19, 2013 by Georgy

Hello.

My schematic is equal of evaluation board from AD9834 datasheet.

Control register value is 0x2238 (i tried several other values too).

Digital clock is cristal generator KXO-97 66MHz.

My frequencies are 0.88MHz and 2.64MHz

I can get digital clock of my frequencies (with correct control register value) on pin SIGN BIT OUT, but I can't get ANY signal on IOUT adn IOUTB (there is digital HIGH)

What I do wrong? Are any specific requirements for schematic, supply, clock which not allowed to DAC work?

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