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LT5500 Last Time Buy
The LT5500 is a receiver front end IC designed for low voltage operation. The chip contains a low noise amplifier (LNA), a Mixer and an LO buffer. The...
Datasheet
LT5500 on Analog.com

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MIXER AND LNA_OUT CONNECTION IN LT5500

		            
		

			

									
					    jasmine18202
					
							


			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on Apr 5, 2019 
				
			
			
		
    
		
     
				
		
    
		    		    
		    
		    	
			
    What is the purpose of the LC circuitry connected at LNA_OUT pin and MIX_IN pin in the evaluation board in the datasheet? I want to connect the LNA_OUT to the MIX_IN. As described in the datasheet I need to connect an interstage filter between the two pins or I can use RC combination. CAn you provide me with more information about this filter or RC combination? 
    
									
			        
		
    

				
						
        

    
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                 LT5500
                
                                                    
                 Low Power RF Transceivers
                
                                                    
                 RF Integrated Transceivers
                
                                
            
    
    
    

		
    
			
						
									
												
			
			
                        
                                    
                        
                                                    
                        
            
			            
						
						
			
			
			
			
		
    

        
        

					
    
			
    


    
















    
	
    
	
    
					



			








	
	
	
	



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							FormerMember
					
      
		
      
			
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									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on Apr 15, 2019 1:15 PM
            
                                    
					
    
	
    

		
		
    
					
    The LC circuit is for 50-ohm matching and filtering. Generally, an inter-stage filter should be used.  You can look up filter design in text books and on the internet.
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
				
				
				
		
		
    
			
		
    
	
    

    


	



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							FormerMember
					
      
		
      
			
													0
							
			
				
									FormerMember
							        
			
			
			
    
            
						
                            
            
            				
            
                on Apr 15, 2019 1:15 PM
            
                                    
					
    
	
    

		
		
    
					
    The LC circuit is for 50-ohm matching and filtering. Generally, an inter-stage filter should be used.  You can look up filter design in text books and on the internet.
    
			
    

		
			
	      

		
		
	
    
	
    
		
    
			
		
    
	
    
	
    
		
						
				
						
				
				
				
		
		
    
			
		
    
	
    

    





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