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AD9576 PLL0 & PLL1 sync



		

			

									
						JuanCamiloP
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Jul 15, 2022 
				
			
			
		


				
		

		    		    
		    
		    		            		        
Category: Hardware

    		        		            		    
Product Number:  AD9576 

    		        		    		    	
			
Hello there, 


I would like to know if when I am setting this configuration all outputs are being configurated with the same phase.


(0x100,0x04);      // PLL0 Sync bit HIGH
(0x200,0x04);      // PLL1 Sync bit HIGH
(0x00F,0x01);      // I/O Update
(0x100,0x00);     // PLL0 Sync bit LOW
(0x200,0x00);     // PLL1 Sync bit LOW
(0x00F,0x01);     //  I/O Update




Regards,


Juan Camilo Peña

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	














	

	

					



			


				
	









	
    
	

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                                 Analog Employees 
                                
                            
      • 
                        
     
                                                           			
			                            
                        
                on Jul 18, 2022 3:02 PM
            
            
					
    
	
    

		
		
    
					
    HI,
    

    

    the sync command synchronizes the outputs belonging to one PLL.
    

    So the sync command in register 0x100 synchronizes the PLL0 outputs and the sync command in the register 0x200 synchronizes the PLL1 outputs.
    

    My recommendation is to try to derive as many outputs you can to come from PLL0. Only OUT10 can be derived only from PLL1.
    

    

    Petre
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
						
				
				
		
		
    
			
		
    
	
    

    

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