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ADV7180 Not Recommended for New Designs
The ADV7180 automatically detects and converts standard analog baseband television signals compatible with worldwide NTSC, PAL, and SECAM standards into...
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ADV7180 on Analog.com

ADV7191 Obsolete
The ADV7190 and ADV7191 are part of the new generation of video encoders from Analog Devices. The ADV7190 and ADV7191 are integrated Digital Video Encoders...
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ADV7191 on Analog.com

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What EAV/SAV codes suit Analog Devices encoders?



		

			

									
					    dave.kepley
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Sep 21, 2010 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi,
    
 
    I am doing some content addition in an FPGA and need to know what EAV/SAV codes are used when  the NEWAVMODE bit is low (0x31[4]=0)?  It is not clear from the datasheet if where the vertical sync is when NEWAVMODE=0.  On page 46 of the datasheet (Rev F):
    
 
    NEWAVMODE, New AV Mode, Address 0x31[4]
    When NEWAVMODE is 0, EAV/SAV codes are generated to suit Analog Devices encoders. No adjustments are possible.
    
 
    I am using the Eval board with the ADV7180LF and the ADV7191...
    
 
    Dave Kepley
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	
    
		
	
    















    
	
    
	
    
					



			








	
	
	
	



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													0
							
			
				
									
							        
			
			
			
        
            
			                            
                        
                on Oct 4, 2010 4:23 PM
            
            
					
        
	
        

		
		
        
					
        What I am really asking is what video lines (NTSC-M) in the digital pixel data does the ADV7180 use for vertical blanking when the NEWAVMODE = 0?  Maybe more importantly, since I don't see a way to change the values of the encoder,  what vertical blanking lines does the ADV7391 use for vertical blanking?
        
 
        On page 80 of  the ADV7390_7391_7392_7393.pdf datasheet, Figure 108 shows some values, but these do not seem to work correctly when I change the data in other lines except these.  Does the ADV7391 look for the vertical blanking to start halway through line 525 (and line 262)?
        
 
        Dave K
        
			
        

		
			
	      

		
		
	
        
	
        
		
        
			
		
        
	
        
	
        
		
						
						
				
						
				
				
		
		
        
			
		
        
	
        

        

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													0
							
			
				
									
							        
			
			
			
          
            
			                            
                        
                on Oct 4, 2010 4:23 PM
            
            
					
          
	
          

		
		
          
					
          What I am really asking is what video lines (NTSC-M) in the digital pixel data does the ADV7180 use for vertical blanking when the NEWAVMODE = 0?  Maybe more importantly, since I don't see a way to change the values of the encoder,  what vertical blanking lines does the ADV7391 use for vertical blanking?
          
 
          On page 80 of  the ADV7390_7391_7392_7393.pdf datasheet, Figure 108 shows some values, but these do not seem to work correctly when I change the data in other lines except these.  Does the ADV7391 look for the vertical blanking to start halway through line 525 (and line 262)?
          
 
          Dave K
          
			
          

		
			
	      

		
		
	
          
	
          
		
          
			
		
          
	
          
	
          
		
						
						
				
						
				
				
		
		
          
			
		
          
	
          

          

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