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ADV7612 regulator recommendations



		

			

									
						AtlFAE
					
							

			
				
									
											
							 		
		        	            							
			
			    	
			                    
                
				                on Jun 27, 2016 
				
			
			
		


				
		

		    		    
		    
		    	
			
When using the ADV7612, which regulators should be used from the eval board?  I remember this part

 
is sensitive to noise and I am thinking this is mainly an issue with the 1.8V vcc rail.  Are there are voltage

 
rails that should be copied from ref design to avoid possible issues (I/O voltage, etc...)?

 
Thanks,

 
Sonya

								


				
				
		

			
						
									
									
						
						
			
			
			
			
		


					

			





	

		
	











	

	

					



			








	
	
	
	



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                                 Analog Employees 
                                
                            
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                on Jun 28, 2016 12:52 AM
            
            
					
    
	
    

		
		
    
					
    Hi Sonya,
    
 
    For the ADV7612 on EVAL-ADV7612-7511, I used an ADP1715-3.3 to generate 3.3V from 5V and an ADP1715-1.8 to generate 1.8V from 5V.
    
 
    I don't think we've had any issues with this approach, but the 5V to 1.8V is quite a large voltage drop, so on the EVAL-ADV7625-SMZ, I used a switching regular (ADP2114) to generate 3.3V and 1.8V in a more efficient manner. I didn't see any issues with that approach either.
    
 
    -Matt
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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    • 
                                 Analog Employees 
                                
                            
      • 
                        
     
                                                           			
			                            
                        
                on Jun 28, 2016 12:52 AM
            
            
					
    
	
    

		
		
    
					
    Hi Sonya,
    
 
    For the ADV7612 on EVAL-ADV7612-7511, I used an ADP1715-3.3 to generate 3.3V from 5V and an ADP1715-1.8 to generate 1.8V from 5V.
    
 
    I don't think we've had any issues with this approach, but the 5V to 1.8V is quite a large voltage drop, so on the EVAL-ADV7625-SMZ, I used a switching regular (ADP2114) to generate 3.3V and 1.8V in a more efficient manner. I didn't see any issues with that approach either.
    
 
    -Matt
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
						
				
						
				
				
		
		
    
			
		
    
	
    

    

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