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ADV7340 Not Recommended for New Designs
The ADV7340 / ADV7341 are high speed, digital-to-analog video encoders in a 64-lead LQFP package. Six high speed, NSV, 3.3 V, 12-bit video DACs provide...
Datasheet
ADV7340 on Analog.com

ADV7341 Not Recommended for New Designs
The ADV7340/ADV7341 are high speed, digital-to-analog video encoders in a 64-lead LQFP package. Six high speed, NSV, 3.3 V, 12-bit video DACs provide support...
Datasheet
ADV7341 on Analog.com

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ADV7340/ADV7341 to generate Analog RGB [ resolution 1024 x 768] +Hsync and Ysync signals from parallel 24bit RGB signals

		
	
				

			

									
					    satish.595
					
							

            
            			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Oct 9, 2023 
				
			
			
		
    
		
		                    	    
    
        	    
    Thread Summary
    
                The user wants to drive an XGA monitor (1024x768) using a 24-bit RGB digital signal from their processor. The Analog Devices support engineer recommends the ADV7341 for converting the 24-bit RGB to analog RGB, noting that the sync signals (HSync and VSync) should be provided directly from the processor, not the ADV7341.
                        	    
    
                
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    Category: Hardware
    
    		        		            		    
    Product Number:  ADV7340 or ADV7341 
    
    		        		    		    
    
		    		    
		    			
    
			    
    We want to drive one XGA [1024 X 768 ] monitor with analog R,G,B + Hsync and Vsync signals  as input.
    

     
    

    My processor can generate 24bit RGB [ 8 bit each R,G,B] data [resolution 1024 x 768]  + Vsync + Hsync + Clk out signal [ 0 to 165Mhz]  ,
    

     
    

    I want to confirm if I can generate Analog R,G,B with resolution [ 1024 x 768 ]  + Vsync +  Hsync signals using the 24 bit RGB input which I mentioned earlier using ADV7340/7341 Video converter chips.
    

     
    

    It will also be helpful , if  AD support Engineer can suggest me any alternative component which will fulfil my requirement.
    

     
    

    
			
    
			
									
		                             
                        

    
    
                                            
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							FormerMember
					
      
		
      
		    
		    		    
			
				
									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on Oct 9, 2023 10:09 AM
            
            
						
			            		
    
		
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    I'd recommend the ADV7341 unless you are a Macrovision adopter.
    

    Since you are spec'ing a 24 bit RGB bus as input the ADV7341 would be the best bet.  If you were outputting YCbCr 16-bit I'd look at the ADV749x series.
    

    You can think of the ADV7341 as a triple DAC with the ability to overlay the sync signaling on the analog outputs.
    

    From your diagram HS and VS will not come from the ADV7341 but direct from the processor.  Normally syncs are part of the green channel.  The ADV7341 does not output separate sync signals.
    

    When outputing component RGB use DACs 1,2 & 3.