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AD9176 Recommended for New Designs
The AD9176 is a high performance, dual, 16-bit digital-to-analog converter (DAC) that supports DAC sample rates up to 12.6 GSPS. The device features an...
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AD9176 on Analog.com

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NCO Reset needed on every sysref pulse.

		
	
				

			

									
					    takins
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Aug 20, 2025 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user inquired about the proper procedure to reset the main data path NCOs on every SysRef rising edge in dual link mode with a dc coupled SysRef. The final answer directed the user to the 'NCO Reset' section in the AD9176 datasheet, specifically to set Register 0x131 bitfield[2] to use the SYSREF edge, ensuring the CHANNEL_PAGE bits are correctly set. An accompanying answer suggested Register 0x113 bitfield[2] for the main NCO, but this was not confirmed in the final answer.
                        	    

                
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Category: Datasheet/Specs

    		        		            		    
Product Number:  AD9176  

    		        		    		    

		    		    
		    			

			    
What is the proper procedure to get the main data path NCOs (dual link mode) to reset on every SysRef rising edge.  This is a dc coupled sysref.    I saw reference to register 0x11E in other sysref related forum discussions.  Can I get more detail on this register?




Torry

			

			
									
		                             
                        

    

                                            
                 AD9176
                
                                                    
                 Standard High Speed D/A Converters
                
                                                    
                 Datasheet/Specs
                
                                                    
                 High Speed D/A Converters =30MSPS
                
                                
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


				
	









	




	
			








		

		

			
    
				
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