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AD9767用DDS输出1.1M的正弦波时（时钟为100MHz），为什么在频谱仪上看到2.2M的谐波附近有对称的杂散？

		
	
				

			

									
					    王508
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Mar 5, 2026 
				
			
			
		
    
		
		                     
				
        		
    
		    
		    		    
    
		      		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  AD9767  
    
    		        		    		    
    
		    		    
		    			
    
			    
    如题，AD9767用DDS输出1.1M的正弦波时（时钟为100MHz），为什么在频谱仪上看到2.2M的谐波附近有对称的杂散？ 
    
			
    
			
									
		                                 
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                 Standard High Speed D/A Converters
                
                                                    
                 hardware
                
                                                    
                 High Speed D/A Converters =30MSPS
                
                                                    
                 ad9767
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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