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LMH1219： About the connection diagram on the data sheet

user6302193
Prodigy 10 points

Part Number: LMH1219

:English


















Hello.



On the LMH1219 datasheet, the module is connected to IN1 ±, but I have no module connected to IN1 ±.



In that case, I connected a 49.9Ω termination resistor to GND.



Please determine if this solution is correct.






 :日本語


LMH1219のデータシート上の接続図について、1つ質問があります。


IN1±について、私の使用用途では接続するモジュールが存在しません。


その場合、49.9Ωの終端抵抗を接続し、GNDに落とす設計にしていますが、


この配線が最良なのか分かりません。


どうすべきか教えていただけないでしょうか。



								


				
				

				
			

		

			
						
									
                			    			            
						
						
			
			
			
			                        
			

				

			


			

		


				    			

						

















	

	

					
    
	
    





		
	
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                          TI__Guru*
                        93570 points
                      
    
                          
                   		
		
    
					
    Greetings,
    

    1). It is a good idea to use 49.9-ohm resistor in series with 4.7uF capacitance.
    

    2). Since you are using IN0, IN1 is not selected when you have IN_OUT_SEL floating or pulled high through 1K-Ohm resistor. Therefor you can leave IN1 floating. But i personally prefer to terminate IN1 even though it is not used.
    

    Regards,, Nasser
    
			
    

		
		
		
		
	
    
	
    
		
    
			
		
    
	
    

	            
                 	
	
    
				
		                
                
                
                
                
                
                
        		
		
				
    
			
		
    
		
		 
		
		
     
    
	
    

    
			
    
			
    
		
    

		
    
	
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