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AD9510 Recommended for New Designs
The AD9510 provides a multi-output clock distribution function along with an on-chip phase-locked loop (PLL) core. The design emphasizes low jitter and...
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AD9510 on Analog.com

AD9959 Recommended for New Designs
The AD9959 consists of four direct digital synthesizer (DDS) cores that provide independent frequency, phase, and amplitude control on each channel. This...
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AD9959 on Analog.com

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1pcs AD9510 support  8 pcs AD9959 as a Clock Distributor for  the Reference and SYNC_CLK

		
	
				

			

									
					    Sara123
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 9, 2025 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user asks if a single AD9510 can support 8 AD9959 devices as a clock distributor for REF_CLK and SYNC_CLK. The final answer recommends using two AD9510s, as each can provide 4 LVPECL outputs. Alternatively, if the AD9959 can accept LVDS AC coupled clocks, the remaining 4 LVDS/CMOS outputs can be used. If not, two ADCLK944 LVPECL buffers can be added to distribute the clocks.
                        	    
    
                
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    Category: Datasheet/Specs
    
    		        		            		    
    Product Number:  AD9510  
    
    		        		    		    
    
		    		    
		    			
    
			    
    Hello,
    

    I want to confirm if 1pcs AD9510 support 8 pcs AD9959 as a Clock Distributor for SYNC_CLK, in the datesheet  example circuit, it only support four pcs  AD9959. so if we want to output  clock for 8 pcs AD9959 as reference and SYNC_CLK,  we need 2pcs AD9510?
    

    pls give some recommendation  for this solution.
    

    Thanks.
    

    BR
    
			
    
			
									
		                             
                        

    
    
                                            
                 Clock Generation Devices
                
                                                    
                 Datasheet/Specs
                
                                                    
                 Clock Generation and Distribution
                
                                                    
                 clock and timing
                
                                                    
                 ad9510
                
                                        
                                            
                
                
                                        
                                            
                
                
                                
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      •  Analog Employees  
      
            
						
                            
            
            				
            
                on Oct 9, 2025 11:23 AM
            
            
						
			            		
      
		
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      Hi,
      

      my recommendation is to ask the AD9959 board about this. I support the AD9510. The AD9510 has 8 outputs, but only 4 of these outputs are LVPECL and the other 4 are LVDS or CMOS.
      

      If the example you refer to from the AD9959 data sheet is the one in figure 25: it shows two AD9510 devices. One of them generates REF_CLK using the PLL, while the other generates SYNC_IN in buffer mode after receiving one SYNC_OUT clock.
      

      The AD9959 seems to require LVPECL AC coupled clocks. See if it can receive LVDS AC coupled clocks. If the answer is yes, then you can use the other four channels on each AD9510 to clock the other four AD9959 devices. If the answer is no, then just add two ADCLK944 LVPECL buffers. On the first one you take a LVDS clock from the 1st AD9510 and create four LVPECL clocks. On the second ADCLK944, you take a LVDS AC coupled clock from the 2nd AD9510 and you pass it through the ADCLK944 to create the other SYNC_IN clocks.
      

      Petre
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
				
						
						
				
				
		
		
      
			
		
      
	
      

      

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                on Oct 9, 2025 11:41 AM
            
            
												
						in reply to pminc48
					
										
			            		
        
		
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        Hello Petre,
        

        Thanks for your reply, I will check AD9959 for the clock requirment.
        

        BR
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
				
						
						
				
				
		
		
        
			
		
        
	
        

        

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