SLA Information

SLA Status Assignee Support Status
SLA Closed. Open
 
Activating this link will open 2 new browser tabs.

Products Mentioned

AD9834 Production
The AD9834 is a 75 MHz low power DDS device capable of producing high performance sine and triangular outputs. It also has an on-board comparator that...
Datasheet
AD9834 on Analog.com

Associated Drivers

Thread Details

  • State Verified Answer
  • Replies 4 replies
  • Subscribers 47 subscribers
  • Views 1089 views
  • Users 0 members are here 

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
generating high frequency triangle wave using AD9834

		
	
				

			

									
					    digital_turtle
					
							

            
            			
				
									
											
			
			
				
			
			
			    	
			                    
                
				                on Jun 17, 2015 
				
			
			
		

		
		                    	    

        	    
Thread Summary

                The user asked if the AD9834 DDS chip can generate a 36 MHz triangle wave, but the 75 MSPS update rate is insufficient for a proper waveform. The engineer suggested that for a good triangle wave, the 5th harmonic should be below the Nyquist frequency, limiting the frequency to around 7 MHz. The user inquired about using the AD9953 (400 MSPS) for 36 MHz triangle waves, but was informed that higher sampling rate DDS chips, including the AD9953, can only generate sinusoids directly and would require a workaround using amplitude sweeps, which may affect phase tuning functionality.
                        	    

                
                     AI Generated Content
                
    	    

             
				
        		

		    
		    		    
		    			

			    
hi all,

 
i'm new to this forum and also to DDS application..

 
so i have a task to create a triangle wave with frequency of 36MHz..

 
is it possible to do this task using AD9834 chip?

 
i wonder that the update rate of AD9834 is only 75MSPS , is it possible to create a good triangle at my required frequency..

 
thank you very much

 
regards,

 
franz

			

			
									
		                             
                        

    

                                            
                 D/A Converters (DAC)
                
                                                    
                 triangle wave generator high frequency
                
                                                    
                 Clocks & Timers
                
                                                    
                 triangle wave
                
                                                    
                 ad9834
                
                                        
                                            
                
                
                                
                    Show More
            

    
    
		


				
				        
        		

			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		


        
        
        
    
					

			





















	

	

					



			


			
	













	
			








	






































     



















		        
        

            
Before You Switch

            
        

        

        

            Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.