Products Mentioned

ADV7181D Not Recommended for New Designs
The ADV7181D is a high quality, single-chip, multiformat video decoder and graphics digitizer. This multiformat decoder supports the conversion of PAL...
Datasheet
ADV7181D on Analog.com

Thread Details

  • State Verified Answer
  • Replies 8 replies
  • Subscribers 81 subscribers
  • Views 1241 views
  • Users 0 members are here
Options 

        

            Post
             Go back to editing
        

    

    


    

    









		


















	
	
			
	
			
		
	
	
		

	    
	    
	    		
Question about ADV7181D status register

		
	
				

			

									
					    youstu
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jun 21, 2016 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user encountered issues with the ADV7181D, where only half the input image width was captured, and the auto-detection incorrectly identified an NTSC signal as PAL. The problem was partially resolved by adjusting VS/HS registers (0x31~0x37 and 0xE6), but the status registers still showed incorrect auto-detection and Fsc unlock. The support engineer recommended using the evaluation board and the standard script for auto-detection to further troubleshoot the issue.
                        	    
    
                
                     AI Generated Content
                
    	    
    
             
				
        		
    
		    
		    		    
		    			
    
			    
    I want to use ADV7181D to convert CVBS  to YUV.
    
 
    ADV7181D is init with recommend settings from <ADV7181D_ADV7181D@_ADV7341-VER.1.0c.txt>.
    
 
    Then only half width of the input image is captured from the output . And I got 0x49, 0xC0 and 0x2d from status register 1~3.
    
 
    The input signal is recognized as PAL signal, While it is NTSC  actually, and Fsc Lock is 0.
    
 
    I wonder what does Fsc stands for ? And what would cause auto detection failed?
    
			
    
			
									
		                             
                        

    
    
                                            
                 Video Products
                
                                                    
                 Video Decoders
                
                                                    
                 adv7181d
                
                                
            
    
    
    
		
    

				
				        
        		
    
			
						
									
												
			
			
                        
                                    
                        
                        
                        
            
			            
						
						
			
			
			
			
		
    

        
        
        
    
					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



Parents
	



Reply



Children
	
    No Data