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AD9745 Production
The AD9743/AD9745/AD976/AD9747 are pin-compatible, high dynamic range, dual digital-to-analog converters (DACs) with 10-/12-/14-/16-bit resolutions and...
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AD9745 on Analog.com

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AD9745 dac output



		

			

									
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				                on May 28, 2013 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi,
    
 
    We are using AD9745 for our application. I am giving an input clock to DAC as 80MHz and DCO is 80MHz, The data input is 64 samples 2'scomplement data. I see the output of DAC in scope at I and I~ as 617KHz sine wave instead of 1.25MHz(80MHz/64). I used all the registers are default registers. Can some one point me to problem why i am seeing 617KHz instead of 1.25MHz sine wave frequency?
    
 
    thanks