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AD9705 Production
The AD9704/AD9705/AD9706/AD9707 are the fourth-generation family in the TxDAC series of high performance, CMOS digital-to-analog converters (DACs). This...
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AD9705 on Analog.com

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AD9705 is not work properly



		

			

									
					    hhcll
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Dec 5, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    I’m using AD9705 with AVDD=3.3V, CLKVDD=3.3V and DVDD=3.3V power supply according to data sheet. The DAC_CLK and DB0~9 is controled by FPGA.
    

    In my project, the DAC_CLK is 16Mhz, and IOUTA is connect to 400Ω resister to GND, IOUTB is connect to 400Ω resister to GND. whatever the DB0~9 data is，the voltage of the two 400Ω register is 3.3V。 It looks like AD9705 is not work.
    

    

    

    May I ask what's going on here?
    

    

    

    

    

    

     
    

    Regards.
    

    hcl.