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Confirmation of required signal for S/PDIF.



		

			

									
					    Taiji
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Jan 12, 2023 
				
			
			
		
    

				
		
    
		    		    
		    
		    		            		        
    Category: Hardware
    
    		        		            		    
    Product Number:  ADV7619＆ADV7511 
    
    		        		    		    	
			
    Hi,teams
    

    I connected only the video data line, but I need audio data, so I'm considering supporting only S/PDIF.
Will S/PDIF work if I connect the following signals?

    ●ADV7619
    Required pins: 5 pins AD0-4. No need for MCLK?
    See p9 block diagram and p65 in the following materials
    

    https://www.analog.com/media/en/technical-documentation/user-guides/UG-237.pdf
    


    ●    ADV7511
    

    Required pins: 2 pins, S/PDIF and MCLK.
    See p11 block diagram and p15 Figure 4 in the following materials
    

    https://www.analog.com/media/en/technical-documentation/user-guides/ADV7511_Hardware_Users_Guide.pdf
    

    

    Best Regard.
    
									
			        
		
    

				
				
		
    
			
						
									
									
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    


	















    
	
    
	
    
					



			


				
	









	
      
	

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      •  Analog Employees  
      •  Super User  
      
            
			                            
                        
                on Jan 13, 2023 3:59 AM
            
            
					
      
	
      

		
		
      
					
      Hi,
      

      ADV7619:
      

      ADV7619 has a dedicated three-pin audio output interface (AP/MCLK/SCLK), So to output SPDIF audio you have to use any one of the AP port pins and then MCLK & SCLK Pin.
      

      ADV7619 can configured to output I2S or AES3(SPDIF) stream. An AES3 stream if the I2SOUTMODE [1:0] control is set to 0x3 (refer to Figure 24 and Figure 25). Note that AES3 is also referred to as raw SPDIF. Each AES3 stream may encapsulate stereo L-PCM audio data or multichannel non-L-PCM audio data (for example, 5.1 Dolby Digital).
      

       
      

      Note: In HBR mode, it is required that the part outputs four SPDIF, I2S or raw IEC60958 streams encapsulating a 24-bit audio sample word.
      

      ADV7511:
      

      YES, ADV7511 is capable of accepting two-channel linear pulse code modulation (LPCM) and encoded audio up to a 192KHz sampling rate via the SPDIF. SPDIF audio input is selected by setting R0x0A[4] = ‘1’. The ADV7511 is capable of accepting SPDIF with or without an MCLK input. When no MCLK is present the ADV7511 generates its own MCLK internally based on the SPDIF information to sample the data and determine the CTS value.
      

      

      Thanks,
      

      Poornima
      
			
      

		
			
	      

		
		
	
      
	
      
		
      
			
		
      
	
      
	
      
		
						
						
						
						
				
				
		
		
      
			
		
      
	
      

      

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