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ADL5513 Recommended for New Designs
The ADL5513 is a demodulating logarithmic amplifier, capable of accurately converting an RF input signal to a corresponding decibel-scaled output. It employs...
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ADL5513 on Analog.com

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ADL5513 and 1090MHz



		

			

									
					    Abo11
					
							

			
				
									
											
			
			
				
    
			
			
			    	
			                    
                
				                on May 19, 2021 
				
			
			
		
    

				
		
    
		    		    
		    
		    	
			
    Hi,
    

    I am trying to receive a 1MHz bandwidth signal with a 1090MHz carrier frequency, since I am not an expert in RF and microwave, i would like to ask you if my current circuit configuration can receive and demodulate the 1090MHz signal using 3 LNAs and ADL5513 in the output, and if a balun is mandatory before the ADL5513. Thanks !
    

    The configuration is as follow : 
    

    RFIN -> SAW Filter (SF2321D) -> LNA (AD8354) -> LNA (MAX2640EUT) -> SAW Filter (SF2321D) -> LNA (AD8354) -> SAW Filter (SF2321D) -> Balun (ETC1-1-13TR) -> Envelope detector (ADL5513) -> ADC
    

       
    

    Thanks !