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The AD9736, AD9735, and AD9734 are high performance, high frequency DACs that provide sample rates of up to 1200 MSPS, permitting multicarrier generation...
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AD9735 on Analog.com

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AD9735 LVDS input voltage range



		

			

									
					    vertreko
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 13, 2011 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    The input voltage range on the digital LVDS inputs of the AD9735 DAC is specified to be 825 mV min to 1575 mV max.  The absolute maximum voltage rating for these inputs is 3.6 V (DVDD33 + 0.3V).
    
 
    We plan to drive these inputs from an FPGA with DC coupling.  Based on the published characteristics of the FPGA LVDS driver, it seems that it will output a voltage between 825 mV and 1675 mV.
    
 
    Will the 1675 mV, which is greater than the AD9735's "max" value of 1575 mV, be a problem?
    
 
    Thanks,
    
 
    Keith
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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      •  Analog Employees  
      
            
			                            
                        
                on Oct 14, 2011 8:30 PM
            
            
					
      
	
      

		
		
      
					
       The AD9734/AD9735/AD9736 LVDS receivers are compliant to IEEE Std. 1596.3-1996. The 1675 mV driver exceeds the data sheet limits, as well as the driver limits in the 1596 standard, and so the guarantees and reliability associated with the data sheet limits would not apply to that application. Generally, we do not recommend operating the devices outside their data sheet limits.
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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													0
							
			
				
									
							        
			
			
			
      •  Analog Employees  
      
            
			                            
                        
                on Oct 14, 2011 8:30 PM
            
            
					
      
	
      

		
		
      
					
       The AD9734/AD9735/AD9736 LVDS receivers are compliant to IEEE Std. 1596.3-1996. The 1675 mV driver exceeds the data sheet limits, as well as the driver limits in the 1596 standard, and so the guarantees and reliability associated with the data sheet limits would not apply to that application. Generally, we do not recommend operating the devices outside their data sheet limits.
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
				
						
				
				
		
		
      
			
		
      
	
      

      

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